BLACKSTONE SECURED LENDING FUND, 10-Q filed on 8/7/2024
Quarterly Report
v3.24.2.u1
Cover - shares
 6 Months Ended
Jun. 30, 2024
Aug. 05, 2024
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 30, 2024  
Document Transition Report false  
Securities Act File Number 814-01299  
Entity Registrant Name Blackstone Secured Lending Fund  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 82-7020632  
Entity Address, Address Line One 345 Park Avenue  
Entity Address, Address Line Two 31st Floor  
Entity Address, City or Town New York  
Entity Address, State or Province NY  
Entity Address, Postal Zip Code 10154  
City Area Code 212  
Local Phone Number 503-2100  
Title of 12(b) Security Common Shares of Beneficial Interest, $0.001 par value per share  
Trading Symbol BXSL  
Security Exchange Name NYSE  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   200,965,855
Entity Central Index Key 0001736035  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2024  
Document Fiscal Period Focus Q2  
v3.24.2.u1
Condensed Consolidated Statements of Assets and Liabilities - USD ($)
$ in Thousands
Jun. 30, 2024
Dec. 31, 2023
ASSETS    
Investments at fair value $ 11,293,797 $ 9,868,440
Cash and cash equivalents 291,292 154,857
Receivable from broker 1,770 0
Deferred financing costs 13,048 16,450
Receivable for investments sold 52,692 1,295
Receivable for shares sold 1,896 0
Derivative assets at fair value (Note 6) 2,015 0
Total assets 11,770,391 10,134,618
LIABILITIES    
Debt (net of unamortized debt issuance costs of $28,887 and $25,953 at June 30, 2024 and December 31, 2023, respectively) 6,084,261 4,911,930
Payable for investments purchased 6,373 8,566
Management fees payable (Note 3) 28,094 23,034
Income based incentive fees payable (Note 3) 37,380 34,373
Capital gains incentive fees payable (Note 3) 6,256 0
Interest payable 44,337 39,880
Distribution payable 152,706 143,052
Accrued expenses and other liabilities 7,933 12,817
Total liabilities 6,375,818 5,182,577
Commitments and contingencies (Note 8)
NET ASSETS    
Common Shares, $0.001 par value (unlimited shares authorized; 198,381,800 and 185,782,408 shares issued and outstanding at June 30, 2024 and December 31, 2023, respectively) 198 186
Additional paid in capital 5,064,855 4,701,827
Distributable earnings (loss) 329,520 250,028
Total net assets 5,394,573 4,952,041
Total liabilities and net assets $ 11,770,391 $ 10,134,618
Net asset value per share (in usd per share) $ 27.19 $ 26.66
Affiliated Entity    
LIABILITIES    
Due to affiliates $ 8,478 $ 8,925
Non-controlled/non-affiliated investments    
ASSETS    
Investments at fair value 11,263,389 [1] 9,862,650 [2]
Interest receivable from non-controlled/non-affiliated investments 113,744 93,576
Non-controlled/affiliated investments    
ASSETS    
Investments at fair value 30,408 [1] 5,790 [2]
Interest receivable from non-controlled/non-affiliated investments $ 137 $ 0
[1] Unless otherwise indicated, all debt and equity investments held by the Company (which such term “Company” shall include the Company’s consolidated subsidiaries for purposes of this Consolidated Schedule of Investments) are denominated in dollars. As of June 30, 2024, the Company had investments denominated in Canadian Dollars (CAD), Euros (EUR), British Pounds (GBP), Danish Krone (DKK), Swedish Krona (SEK), Norwegian Krone (NOK), and Australian Dollars (AUD). All debt investments are income producing unless otherwise indicated. All equity investments are non-income producing unless otherwise noted. Certain portfolio company investments are subject to contractual restrictions on sales. The total par amount (in thousands) is presented for debt investments, while the number of shares or units (in whole amounts) owned is presented for equity investments. Each of the Company’s investments is pledged as collateral, under one or more of its credit facilities unless otherwise indicated.
[2] Unless otherwise indicated, all debt and equity investments held by the Company (which such term “Company” shall include the Company’s consolidated subsidiaries for purposes of this Consolidated Schedule of Investments) are denominated in dollars. As of December 31, 2023, the Company had investments denominated in Canadian Dollars (CAD), Euros (EUR), British Pounds (GBP), Danish Krone (DKK), Swedish Krona (SEK), and Norwegian Krone (NOK). All debt investments are income producing unless otherwise indicated. All equity investments are non-income producing unless otherwise noted. Certain portfolio company investments are subject to contractual restrictions on sales. The total par amount (in thousands) is presented for debt investments, while the number of shares or units (in whole amounts) owned is presented for equity investments. Each of the Company’s investments is pledged as collateral, under one or more of its credit facilities unless otherwise indicated.
v3.24.2.u1
Condensed Consolidated Statements of Assets and Liabilities (Parenthetical) - USD ($)
$ in Thousands
Jun. 30, 2024
Dec. 31, 2023
Cost $ 11,330,469 $ 9,934,159
Net of unamortized debt issuance costs $ 28,887 $ 25,953
Common stock, par value (in usd per share) $ 0.001 $ 0.001
Common stock, shares authorized (in shares)
Common stock, shares issued (in shares) 198,381,800 185,782,408
Common stock, shares outstanding (in shares) 198,381,800 185,782,408
Non-controlled/non-affiliated investments    
Cost $ 11,305,057 [1],[2] $ 9,934,158 [3],[4]
Non-controlled/affiliated investments    
Cost $ 25,412 [1],[2] $ 1 [3],[4]
[1] The cost represents the original cost adjusted for the amortization of discounts and premiums, as applicable, on debt investments using the effective interest method in accordance with accounting principles generally accepted in the United States of America (“GAAP”).
[2] Unless otherwise indicated, all debt and equity investments held by the Company (which such term “Company” shall include the Company’s consolidated subsidiaries for purposes of this Consolidated Schedule of Investments) are denominated in dollars. As of June 30, 2024, the Company had investments denominated in Canadian Dollars (CAD), Euros (EUR), British Pounds (GBP), Danish Krone (DKK), Swedish Krona (SEK), Norwegian Krone (NOK), and Australian Dollars (AUD). All debt investments are income producing unless otherwise indicated. All equity investments are non-income producing unless otherwise noted. Certain portfolio company investments are subject to contractual restrictions on sales. The total par amount (in thousands) is presented for debt investments, while the number of shares or units (in whole amounts) owned is presented for equity investments. Each of the Company’s investments is pledged as collateral, under one or more of its credit facilities unless otherwise indicated.
[3] The cost represents the original cost adjusted for the amortization of discounts and premiums, as applicable, on debt investments using the effective interest method in accordance with accounting principles generally accepted in the United States of America (“GAAP”).
[4] Unless otherwise indicated, all debt and equity investments held by the Company (which such term “Company” shall include the Company’s consolidated subsidiaries for purposes of this Consolidated Schedule of Investments) are denominated in dollars. As of December 31, 2023, the Company had investments denominated in Canadian Dollars (CAD), Euros (EUR), British Pounds (GBP), Danish Krone (DKK), Swedish Krona (SEK), and Norwegian Krone (NOK). All debt investments are income producing unless otherwise indicated. All equity investments are non-income producing unless otherwise noted. Certain portfolio company investments are subject to contractual restrictions on sales. The total par amount (in thousands) is presented for debt investments, while the number of shares or units (in whole amounts) owned is presented for equity investments. Each of the Company’s investments is pledged as collateral, under one or more of its credit facilities unless otherwise indicated.
v3.24.2.u1
Condensed Consolidated Statements of Operations - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Investment income:        
Dividend income $ 189 $ 159 $ 189 $ 159
Fee income 1,171 5,017 1,405 5,893
Total investment income 327,064 290,365 631,024 555,303
Expenses:        
Interest expense 78,841 66,148 145,560 132,876
Management fees (Note 3) 28,094 24,276 54,134 48,972
Income based incentive fee payable 37,380 34,493 73,225 64,886
Capital gains incentive fee payable 3,122 (3,949) 6,256 (5,506)
Professional fees 1,069 1,019 2,020 2,207
Board of Trustees’ fees 289 236 511 461
Administrative service expenses (Note 3) 765 675 1,442 1,054
Other general and administrative 985 2,000 2,159 3,605
Total expenses before excise tax 150,545 124,898 285,307 248,555
Management fees waived (Note 3) 0 (6,069) 0 (12,243)
Incentive fees waived (Note 3) 0 (4,928) 0 (9,270)
Net expenses before excise tax 150,545 113,901 285,307 227,042
Net investment income before excise tax 176,519 176,464 345,717 328,261
Excise tax expense 3,421 4,979 6,771 7,601
Net investment income after excise tax 173,098 171,485 338,946 320,660
Net change in unrealized appreciation (depreciation):        
Net change in unrealized (appreciation) depreciation on investments     32,747 (48,673)
Translation of assets and liabilities in foreign currencies 124 (223) 103 (3,364)
Net change in unrealized appreciation (depreciation) 21,085 (37,493) 32,850 (52,037)
Net realized gain (loss):        
Non-controlled/non-affiliated investments     623 (4,299)
Foreign currency transactions 1,808 11,671 7,522 19,324
Net realized gain (loss) 2,003 10,858 8,145 15,025
Net realized and change in unrealized gain (loss) 23,088 (26,635) 40,995 (37,012)
Net increase (decrease) in net assets resulting from operations $ 196,186 $ 144,850 $ 379,941 $ 283,648
Net investment income (in usd per share) $ 0.89 $ 1.06 $ 1.76 $ 1.99
Earnings (loss) per share basic (in usd per share) 1.01 0.90 1.98 1.76
Earnings (loss) per share diluted (in usd per share) $ 1.01 $ 0.90 $ 1.98 $ 1.76
Weighted average shares outstanding basic (in shares) 193,908,352 161,079,263 192,254,100 160,792,160
Weighted average shares outstanding diluted (in shares) 193,908,352 161,079,263 192,254,100 160,792,160
Non-controlled/non-affiliated investments        
Investment income:        
Interest income $ 302,691 $ 273,914 $ 585,955 $ 528,135
Payment-in-kind interest income 22,876 11,275 43,338 21,116
Net change in unrealized appreciation (depreciation):        
Net change in unrealized (appreciation) depreciation on investments 22,066 (28,456) 33,540 (35,218)
Net realized gain (loss):        
Non-controlled/non-affiliated investments 195 (8,020) 623 (11,506)
Non-controlled/affiliated investments        
Investment income:        
Interest income 137 0 137 0
Net change in unrealized appreciation (depreciation):        
Net change in unrealized (appreciation) depreciation on investments (1,105) (8,814) (793) (13,455)
Net realized gain (loss):        
Non-controlled/non-affiliated investments $ 0 $ 7,207 $ 0 $ 7,207
v3.24.2.u1
Condensed Consolidated Statements of Changes in Net Assets - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Investment Company, Net Assets [Roll Forward]        
Beginning balance $ 5,155,665 $ 4,190,496 $ 4,952,041 $ 4,158,966
Issuance of common shares, net of offering and underwriting costs 190,135 124,933 352,133 124,933
Common shares sold, not yet issued [1]   336   336
Reinvestment of dividends 5,293 [1] 5,439 [1] 10,907 [1] 10,571
Net investment income 173,098 171,485 338,946 320,660
Net realized gain (loss) 2,003 10,858 8,145 15,025
Net change in unrealized appreciation (depreciation) 21,085 (37,493) 32,850 (52,037)
Dividends declared and payable from net investment income (152,706) (115,783) (300,449) (228,183)
Ending balance 5,394,573 4,350,271 5,394,573 4,350,271
Par Amount        
Investment Company, Net Assets [Roll Forward]        
Beginning balance 192 162 186 160
Issuance of common shares, net of offering and underwriting costs 6 3 12 3
Reinvestment of dividends       2
Ending balance 198 165 198 165
Additional Paid in Capital        
Investment Company, Net Assets [Roll Forward]        
Beginning balance 4,869,433 4,038,243 4,701,827 4,033,113
Issuance of common shares, net of offering and underwriting costs 190,129 124,930 352,121 124,930
Common shares sold, not yet issued [1]   336   336
Reinvestment of dividends 5,293 [1] 5,439 [1] 10,907 [1] 10,569
Ending balance 5,064,855 4,168,948 5,064,855 4,168,948
Distributable Earnings (Loss)        
Investment Company, Net Assets [Roll Forward]        
Beginning balance 286,040 152,091 250,028 125,693
Net investment income 173,098 171,485 338,946 320,660
Net realized gain (loss) 2,003 10,858 8,145 15,025
Net change in unrealized appreciation (depreciation) 21,085 (37,493) 32,850 (52,037)
Dividends declared and payable from net investment income (152,706) (115,783) (300,449) (228,183)
Ending balance $ 329,520 $ 181,158 $ 329,520 $ 181,158
[1] The par amount of the shares is less than 1,000 and rounds to zero.
v3.24.2.u1
Condensed Consolidated Statements of Changes in Cash Flows - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Cash flows from operating activities:    
Net increase (decrease) in net assets resulting from operations $ 379,941 $ 283,648
Adjustments to reconcile net increase (decrease) in net assets resulting from operations to net cash provided by (used in) operating activities:    
Net change in unrealized (appreciation) depreciation on investments (32,747) 48,673
Net change in unrealized (appreciation) depreciation on translation of assets and liabilities in foreign currencies (103) 3,364
Net realized (gain) loss on investments (623) 4,299
Payment-in-kind interest capitalized (42,693) (24,198)
Net accretion of discount and amortization of premium (20,333) (30,190)
Amortization of deferred financing costs 3,403 2,459
Amortization of original issue discount and debt issuance costs 4,321 5,127
Purchases of investments (1,609,750) (219,153)
Proceeds from sale of investments and principal repayments 276,090 573,828
Changes in operating assets and liabilities:    
Receivable for investments sold (51,397) 3,936
Receivable from broker (1,770) 0
Payable for investments purchased (2,193) (745)
Due to affiliates (447) 1,475
Management fee payable 5,060 (388)
Income based incentive fee payable 3,007 4,792
Capital gains incentive fee payable 6,256 (5,506)
Interest payable 4,457 (8)
Accrued expenses and other liabilities (4,884) 2,698
Net cash provided by (used in) operating activities (1,104,710) 677,142
Cash flows from financing activities:    
Borrowings on debt 1,665,849 474,000
Repayments on debt (494,000) (1,068,360)
Deferred financing costs paid 0 (5,149)
Debt issuance costs paid (1,070) 0
Dividends paid in cash (279,888) (198,713)
Proceeds from issuance of Common Shares, net of offering and underwriting costs 350,237 124,933
Net cash provided by (used in) financing activities 1,241,128 (673,289)
Net increase (decrease) in cash and cash equivalents 136,418 3,853
Effect of foreign exchange rate changes on cash and cash equivalents 17 12,258
Cash and cash equivalents, beginning of period 154,857 131,272
Cash and cash equivalents, end of period 291,292 147,383
Supplemental information and non-cash activities:    
Interest paid during the period 133,658 126,014
Distribution payable 152,706 115,783
Reinvestment of distributions during the period 10,907 10,571
Accrued but unpaid debt issuance costs 500 0
Receivable for shares sold 1,896 336
Excise taxes paid 11,430 5,245
Non-controlled/non-affiliated investments    
Adjustments to reconcile net increase (decrease) in net assets resulting from operations to net cash provided by (used in) operating activities:    
Net change in unrealized (appreciation) depreciation on investments (33,540) 35,218
Net realized (gain) loss on investments (623) 11,506
Changes in operating assets and liabilities:    
Interest receivable from non-controlled/non-affiliated investments (20,168) 23,031
Non-controlled/affiliated investments    
Adjustments to reconcile net increase (decrease) in net assets resulting from operations to net cash provided by (used in) operating activities:    
Net change in unrealized (appreciation) depreciation on investments 793 13,455
Net realized (gain) loss on investments 0 (7,207)
Changes in operating assets and liabilities:    
Interest receivable from non-controlled/non-affiliated investments $ (137) $ 0
Not available
v3.24.2.u1
Condensed Consolidated Schedule of Investments (Parenthetical) - USD ($)
$ in Thousands
 6 Months Ended 12 Months Ended
Jun. 30, 2024
Dec. 31, 2023
Schedule of Investments [Line Items]    
Percentage of portfolio above floor rate 92.50% 93.70%
Fair Value as % of Net Assets 209.30% 199.30%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance $ 9,868,440  
Ending balance $ 11,293,797 $ 9,868,440
Non-controlled/non-affiliated investments    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 208.73% [1] 199.19% [2]
Unfunded commitments $ 1,746,190 $ 985,936
Fair Value (5,926) (6,660)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2] 9,862,650  
Ending balance $ 11,263,389 [1] $ 9,862,650 [2]
Non-controlled/affiliated investments    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.56% [1] 0.12% [2]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2] $ 5,790  
Ending balance 30,408 [1] $ 5,790 [2]
Non-controlled/affiliated investments | Blackstone Donegal Holdings LP    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance 5,790 56,584
Gross Additions 0 0
Gross Reductions 0 (44,921)
Net Change in Unrealized Gains (Losses) 937 (14,156)
Net Realized Gain (Loss) 0 8,283
Ending balance 6,727 5,790
Dividend and Interest Income 0 0
Non-controlled/affiliated investments | Material Holdings, LLC 1    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance 0  
Gross Additions 20,443  
Gross Reductions 0  
Net Change in Unrealized Gains (Losses) 201  
Net Realized Gain (Loss) 0  
Ending balance 20,644 0
Dividend and Interest Income 110  
Non-controlled/affiliated investments | Material Holdings, LLC 2    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance 0  
Gross Additions 4,968  
Gross Reductions 0  
Net Change in Unrealized Gains (Losses) (1,931)  
Net Realized Gain (Loss) 0  
Ending balance 3,037 0
Dividend and Interest Income 27  
Non-controlled/affiliated investments | Material+ Holding Company, LLC    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance 0  
Gross Additions 0  
Gross Reductions 0  
Net Change in Unrealized Gains (Losses) 0  
Net Realized Gain (Loss) 0  
Ending balance 0 0
Dividend and Interest Income 0  
Affiliated investments    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance 5,790 56,584
Gross Additions 25,411 0
Gross Reductions 0 (44,921)
Net Change in Unrealized Gains (Losses) (793) (14,156)
Net Realized Gain (Loss) 0 8,283
Ending balance 30,408 5,790
Dividend and Interest Income $ 137 $ 0
Qualifying Assets    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 70.00%  
Non-qualifying Assets    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 11.70% 11.00%
Low | Qualifying Assets    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets   70.00%
Investment, Identifier [Axis]: 123Dentist, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.03% [1],[3],[4],[5],[6],[7] 0.03% [2],[8],[9],[10],[11],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[10],[11],[12] $ 1,389  
Ending balance 1,777 [1],[3],[4],[5],[6],[7] $ 1,389 [2],[8],[9],[10],[11],[12]
Investment, Identifier [Axis]: 123Dentist, Inc., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 55 276
Fair Value $ 0 $ (68)
Investment, Identifier [Axis]: ACI Group Holdings, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 2.21% [1],[3],[4],[5],[7] 2.31% [2],[8],[9],[10],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[10],[12] $ 114,347  
Ending balance $ 119,405 [1],[3],[4],[5],[7] $ 114,347 [2],[8],[9],[10],[12]
Investment, Identifier [Axis]: ACI Group Holdings, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.05% [1],[3],[4],[5],[7] 0.03% [2],[8],[9],[10],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[10],[12] $ 1,619  
Ending balance 2,892 [1],[3],[4],[5],[7] $ 1,619 [2],[8],[9],[10],[12]
Investment, Identifier [Axis]: ACI Group Holdings, Inc., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 9,631 14,182
Fair Value 0 0
Investment, Identifier [Axis]: ACI Group Holdings, Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 8,675 9,832
Fair Value $ 0 $ 0
Investment, Identifier [Axis]: ADCS Clinics Intermediate Holdings, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.13% [1],[7],[13] 0.14% [2],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[14] $ 6,849  
Ending balance $ 6,814 [1],[7],[13] $ 6,849 [2],[12],[14]
Investment, Identifier [Axis]: ADCS Clinics Intermediate Holdings, LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.03% [1],[5],[7],[13] 0.03% [2],[9],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[12],[14] $ 1,615  
Ending balance $ 1,633 [1],[5],[7],[13] $ 1,615 [2],[9],[12],[14]
Investment, Identifier [Axis]: ADCS Clinics Intermediate Holdings, LLC 3    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[4],[5],[7],[13] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[4],[5],[7],[13] $ 149  
Investment, Identifier [Axis]: ADCS Clinics Intermediate Holdings, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 1,152 1,301
Fair Value $ 0 $ (26)
Investment, Identifier [Axis]: AGI Group Holdings LP - A2 Units    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.01% [1],[7] 0.01% [2],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12] $ 507  
Ending balance $ 591 [1],[7] $ 507 [2],[12]
Investment, Identifier [Axis]: AGI-CFI Holdings, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[7] 1.71%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[7] $ 92,318  
Investment, Identifier [Axis]: AGI-CFI Holdings, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[12]   1.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[12] 74,470  
Ending balance [2],[8],[12]   $ 74,470
Investment, Identifier [Axis]: AGI-CFI Holdings, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[12]   0.36%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[12] 17,847  
Ending balance [2],[8],[12]   $ 17,847
Investment, Identifier [Axis]: AI Altius Bidco Inc, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 500  
Fair Value $ 0  
Investment, Identifier [Axis]: AI Altius Bidco, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.02% [1],[5],[7],[15] 0.02% [2],[10],[12],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[10],[12],[16] $ 960  
Ending balance $ 1,008 [1],[5],[7],[15] $ 960 [2],[10],[12],[16]
Investment, Identifier [Axis]: AI Altius Bidco, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.02% [1],[3],[5],[7] 0.13% [2],[8],[9],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] $ 6,612  
Ending balance $ 982 [1],[3],[5],[7] $ 6,612 [2],[8],[9],[12]
Investment, Identifier [Axis]: AI Altius Bidco, Inc. 3    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[7] 0.12%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[7] $ 6,550  
Investment, Identifier [Axis]: AI Altius Bidco, Inc., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments   158
Fair Value   $ 0
Investment, Identifier [Axis]: ALKU, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[10],[12]   0.02%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[10],[12] $ 796  
Ending balance [2],[8],[10],[12]   $ 796
Investment, Identifier [Axis]: ALKU, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[5],[7] 0.01%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[5],[7] $ 794  
Investment, Identifier [Axis]: ALKU, LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[7] 0.49%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[7] $ 26,263  
Investment, Identifier [Axis]: ASP Endeavor Acquisition, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.23% [1],[5],[7],[17] 0.25% [2],[10],[12],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[10],[12],[18] $ 12,467  
Ending balance 12,403 [1],[5],[7],[17] $ 12,467 [2],[10],[12],[18]
Investment, Identifier [Axis]: AVE Holdings I Corp.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[12]   0.01%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12] $ 596  
Ending balance [2],[12]   $ 596
Investment, Identifier [Axis]: AVE Holdings I Corp. - Series A-1 Preferred Shares    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[7] 0.01%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[7] $ 651  
Investment, Identifier [Axis]: Abaco Energy Technologies, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[12],[19]   0.35%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[19] $ 17,563  
Ending balance [2],[12],[19]   $ 17,563
Investment, Identifier [Axis]: Aevex Holdings, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[5],[7],[13] 0.88%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[5],[7],[13] $ 47,548  
Investment, Identifier [Axis]: Albireo Energy, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 1.32% [1],[5],[7],[13] 1.43% [2],[10],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[10],[12],[14] $ 70,722  
Ending balance $ 71,135 [1],[5],[7],[13] $ 70,722 [2],[10],[12],[14]
Investment, Identifier [Axis]: Albireo Energy, LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.40% [1],[5],[7],[13] 0.12% [2],[10],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[10],[12],[14] $ 5,726  
Ending balance $ 21,351 [1],[5],[7],[13] $ 5,726 [2],[10],[12],[14]
Investment, Identifier [Axis]: Albireo Energy, LLC 3    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.11% [1],[5],[7],[13] 0.43% [2],[10],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[10],[12],[14] $ 21,227  
Ending balance 5,760 [1],[5],[7],[13] $ 21,227 [2],[10],[12],[14]
Investment, Identifier [Axis]: Alera Group, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[9],[12]   0.07%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] $ 3,659  
Ending balance [2],[8],[9],[12]   $ 3,659
Investment, Identifier [Axis]: Alera Group, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[7] 0.07%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[7] $ 3,647  
Investment, Identifier [Axis]: Alera Group, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [3],[4],[5],[7] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [3],[4],[5],[7] $ 210  
Investment, Identifier [Axis]: Alera Group, Inc., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 1,080 1,291
Fair Value $ 0 $ (6)
Investment, Identifier [Axis]: Allium Buyer LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[4],[5],[7],[13] 0.03%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[4],[5],[7],[13] $ 1,588  
Investment, Identifier [Axis]: Allium Buyer LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 249  
Fair Value 0  
Investment, Identifier [Axis]: American Restoration Holdings, LLC, Delayed Draw Term Loan 1    
Schedule of Investments [Line Items]    
Unfunded commitments 1,309  
Fair Value 0  
Investment, Identifier [Axis]: American Restoration Holdings, LLC, Delayed Draw Term Loan 2    
Schedule of Investments [Line Items]    
Unfunded commitments 3,538  
Fair Value 0  
Investment, Identifier [Axis]: American Restoration Holdings, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 1,309  
Fair Value 0  
Investment, Identifier [Axis]: American Restoration Holdings, LLC, Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 4,544  
Fair Value $ 0  
Investment, Identifier [Axis]: Amerilife Holdings LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.05% [1],[3],[4],[5],[7] 0.04% [2],[8],[9],[10],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[10],[12] $ 2,145  
Ending balance 2,664 [1],[3],[4],[5],[7] $ 2,145 [2],[8],[9],[10],[12]
Investment, Identifier [Axis]: Amerilife Holdings LLC, Delayed Draw Term Loan 1    
Schedule of Investments [Line Items]    
Unfunded commitments 38 75
Fair Value 0 0
Investment, Identifier [Axis]: Amerilife Holdings LLC, Delayed Draw Term Loan 2    
Schedule of Investments [Line Items]    
Unfunded commitments 662 488
Fair Value (3) (5)
Investment, Identifier [Axis]: Amerilife Holdings LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 243 243
Fair Value $ 0 $ 0
Investment, Identifier [Axis]: Amerivet Partners Management, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[7] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[7] $ 5,572  
Investment, Identifier [Axis]: Amerivet Partners Management, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[9],[10],[12]   0.03%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[10],[12] 1,341  
Ending balance [2],[8],[9],[10],[12]   $ 1,341
Investment, Identifier [Axis]: Amerivet Partners Management, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[10],[12]   0.09%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[10],[12] 4,259  
Ending balance [2],[8],[10],[12]   $ 4,259
Investment, Identifier [Axis]: Amerivet Partners Management, Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 589 589
Fair Value 0 $ 0
Investment, Identifier [Axis]: Anaplan, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[9],[10],[12]   0.04%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[10],[12] $ 1,794  
Ending balance [2],[8],[9],[10],[12]   $ 1,794
Investment, Identifier [Axis]: Anaplan, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[7] 0.03%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[7] $ 1,804  
Investment, Identifier [Axis]: Anaplan, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[7] 0.36%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[7] $ 19,227  
Investment, Identifier [Axis]: Anaplan, Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 161 161
Fair Value 0 $ (1)
Investment, Identifier [Axis]: Apex Companies, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[9],[10],[12],[14]   0.03%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[10],[12],[14] $ 1,600  
Ending balance [2],[9],[10],[12],[14]   $ 1,600
Investment, Identifier [Axis]: Apex Companies, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[5],[7],[13] 0.03%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[5],[7],[13] $ 1,605  
Investment, Identifier [Axis]: Apex Companies, LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[4],[5],[7],[13] 0.01%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[4],[5],[7],[13] $ 310  
Investment, Identifier [Axis]: Apex Companies, LLC 3    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[5],[7],[13] 0.01%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[5],[7],[13] $ 369  
Investment, Identifier [Axis]: Apex Companies, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 419 369
Fair Value $ 0 $ (5)
Investment, Identifier [Axis]: Armada Parent, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.47% [1],[3],[4],[7] 0.51% [2],[8],[9],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] $ 25,435  
Ending balance 25,317 [1],[3],[4],[7] $ 25,435 [2],[8],[9],[12]
Investment, Identifier [Axis]: Armada Parent, Inc., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments   1,250
Fair Value   0
Investment, Identifier [Axis]: Armada Parent, Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 3,000 3,000
Fair Value $ (30) $ (30)
Investment, Identifier [Axis]: Ascend Buyer, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.38% [1],[3],[7] 0.37% [2],[8],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[12] $ 18,415  
Ending balance $ 20,565 [1],[3],[7] $ 18,415 [2],[8],[12]
Investment, Identifier [Axis]: Ascend Buyer, LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.01% [1],[3],[4],[5],[7] 0.04% [2],[8],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[12] $ 1,945  
Ending balance 647 [1],[3],[4],[5],[7] $ 1,945 [2],[8],[12]
Investment, Identifier [Axis]: Ascend Buyer, LLC 3    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[9],[12]   0.01%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] 624  
Ending balance [2],[8],[9],[12]   $ 624
Investment, Identifier [Axis]: Ascend Buyer, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 1,293 1,293
Fair Value $ 0 $ 0
Investment, Identifier [Axis]: Azurite Intermediate Holdings Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[7] 0.51%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[7] $ 27,510  
Investment, Identifier [Axis]: Azurite Intermediate Holdings Inc., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 9,234  
Fair Value 0  
Investment, Identifier [Axis]: Azurite Intermediate Holdings Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 4,104  
Fair Value $ 0  
Investment, Identifier [Axis]: BP Purchaser, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.12% [1],[3],[7] 0.14% [2],[8],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[12] $ 6,968  
Ending balance $ 6,716 [1],[3],[7] $ 6,968 [2],[8],[12]
Investment, Identifier [Axis]: BPPH2 Limited    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.62% [1],[5],[6],[7],[15] 0.67% [2],[10],[11],[12],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[10],[11],[12],[16] $ 33,272  
Ending balance 33,246 [1],[5],[6],[7],[15] $ 33,272 [2],[10],[11],[12],[16]
Investment, Identifier [Axis]: BPPH2 Limited, Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 10,596  
Fair Value $ 0  
Investment, Identifier [Axis]: Baker Tilly Advisory Group LP    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[7] 0.81%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[7] $ 43,915  
Investment, Identifier [Axis]: Baker Tilly Advisory Group LP, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 8,960  
Fair Value (67)  
Investment, Identifier [Axis]: Baker Tilly Advisory Group LP, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 9,856  
Fair Value $ (148)  
Investment, Identifier [Axis]: Bamboo US BidCo LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.01% [1],[4],[5],[7],[13] 0.01% [2],[9],[10],[11],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[10],[11],[12],[14] $ 667  
Ending balance $ 707 [1],[4],[5],[7],[13] $ 667 [2],[9],[10],[11],[12],[14]
Investment, Identifier [Axis]: Bamboo US BidCo LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.01% [1],[5],[7],[13] 0.01% [2],[10],[11],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[10],[11],[12],[14] $ 373  
Ending balance 375 [1],[5],[7],[13] $ 373 [2],[10],[11],[12],[14]
Investment, Identifier [Axis]: Bamboo US BidCo LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 86 99
Fair Value 0 0
Investment, Identifier [Axis]: Bamboo US BidCo LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 142 142
Fair Value $ 0 $ (3)
Investment, Identifier [Axis]: Barbri Holdings, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 1.14% [1],[3],[7] 1.17% [2],[8],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[12] $ 58,055  
Ending balance $ 61,415 [1],[3],[7] $ 58,055 [2],[8],[12]
Investment, Identifier [Axis]: Bayshore Intermediate #2 LP    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[5],[7] 0.22%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[5],[7] $ 12,137  
Investment, Identifier [Axis]: Bazaarvoice, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 4.17% [1],[4],[7],[15] 4.57% [2],[9],[12],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[12],[16] $ 226,169  
Ending balance $ 225,015 [1],[4],[7],[15] $ 226,169 [2],[9],[12],[16]
Investment, Identifier [Axis]: Bazaarvoice, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.28% [1],[7],[15] 0.31% [2],[12],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[16] $ 15,244  
Ending balance 15,168 [1],[7],[15] $ 15,244 [2],[12],[16]
Investment, Identifier [Axis]: Bazaarvoice, Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 28,662 28,662
Fair Value 0 $ 0
Investment, Identifier [Axis]: Beeline, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[9],[10],[12]   0.10%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[10],[12] $ 4,939  
Ending balance [2],[8],[9],[10],[12]   $ 4,939
Investment, Identifier [Axis]: Beeline, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments   514
Fair Value   (3)
Investment, Identifier [Axis]: Beeline, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments   591
Fair Value   $ 0
Investment, Identifier [Axis]: Bimini Group Purchaser Inc 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[7] 0.94%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[7] $ 50,562  
Investment, Identifier [Axis]: Bimini Group Purchaser Inc 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[7] 0.04%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[7] $ 2,054  
Investment, Identifier [Axis]: Bimini Group Purchaser Inc, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 18,925  
Fair Value (95)  
Investment, Identifier [Axis]: Bimini Group Purchaser Inc, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 2,804  
Fair Value $ 0  
Investment, Identifier [Axis]: Blackstone Donegal Holdings LP - LP Interests (Westland Insurance Group LTD)    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.12% [1],[6],[7],[20] 0.12% [2],[11],[12],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[11],[12],[21] $ 5,790  
Ending balance $ 6,727 [1],[6],[7],[20] $ 5,790 [2],[11],[12],[21]
Investment, Identifier [Axis]: BlueCat Networks USA, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.04% [1],[3],[5],[7] 0.04% [2],[8],[10],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[10],[12] $ 1,913  
Ending balance $ 1,952 [1],[3],[5],[7] $ 1,913 [2],[8],[10],[12]
Investment, Identifier [Axis]: BlueCat Networks USA, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.01% [1],[3],[5],[7] 0.01% [2],[8],[10],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[10],[12] $ 336  
Ending balance $ 343 [1],[3],[5],[7] $ 336 [2],[8],[10],[12]
Investment, Identifier [Axis]: BlueCat Networks USA, Inc. 3    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.00% [1],[3],[4],[5],[7] 0.00% [2],[8],[9],[10],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[10],[12] $ 61  
Ending balance 61 [1],[3],[4],[5],[7] $ 61 [2],[8],[9],[10],[12]
Investment, Identifier [Axis]: BlueCat Networks USA, Inc., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 276 277
Fair Value $ 0 $ 0
Investment, Identifier [Axis]: Bluefin Holding, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.42% [1],[4],[5],[7],[13] 0.45% [2],[9],[10],[11],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[10],[11],[12],[14] $ 22,381  
Ending balance 22,631 [1],[4],[5],[7],[13] $ 22,381 [2],[9],[10],[11],[12],[14]
Investment, Identifier [Axis]: Bluefin Holding, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 2,244 2,244
Fair Value $ (11) $ (34)
Investment, Identifier [Axis]: Box Co-Invest Blocker, LLC - (BP Alpha Holdings, L.P.) - Class A Units    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[7] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[7] $ 197  
Investment, Identifier [Axis]: Box Co-Invest Blocker, LLC - (BP Alpha Holdings, L.P.) - Class C Units    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[7] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[7] $ 97  
Investment, Identifier [Axis]: Box Co-Invest Blocker, LLC - Class A Units    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[12]   0.01%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12] 358  
Ending balance [2],[12]   $ 358
Investment, Identifier [Axis]: Box Co-Invest Blocker, LLC - Class C Units    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[12]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12] $ 92  
Ending balance [2],[12]   $ 92
Investment, Identifier [Axis]: BradyIFS Holdings, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 1.69% [1],[4],[7],[13] 1.81% [2],[9],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[12],[14] $ 89,599  
Ending balance $ 91,128 [1],[4],[7],[13] $ 89,599 [2],[9],[12],[14]
Investment, Identifier [Axis]: BradyIFS Holdings, LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.11% [1],[4],[5],[7],[13] 0.05% [2],[9],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[12],[14] $ 2,372  
Ending balance 6,134 [1],[4],[5],[7],[13] $ 2,372 [2],[9],[12],[14]
Investment, Identifier [Axis]: BradyIFS Holdings, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 3,831 7,613
Fair Value 0 0
Investment, Identifier [Axis]: BradyIFS Holdings, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 7,758 7,758
Fair Value $ 0 $ (155)
Investment, Identifier [Axis]: Brave Parent Holdings, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 1.26% [1],[3],[4],[7] 1.28% [2],[8],[9],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] $ 63,346  
Ending balance 68,076 [1],[3],[4],[7] $ 63,346 [2],[8],[9],[12]
Investment, Identifier [Axis]: Brave Parent Holdings, Inc., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 3,058 7,282
Fair Value 0 (55)
Investment, Identifier [Axis]: Brave Parent Holdings, Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 3,641 3,641
Fair Value $ 0 $ (36)
Investment, Identifier [Axis]: Bution Holdco 2, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 1.29% [1],[7],[13] 1.42% [2],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[14] $ 70,143  
Ending balance $ 69,518 [1],[7],[13] $ 70,143 [2],[12],[14]
Investment, Identifier [Axis]: CCBlue Bidco, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.18% [1],[3],[7] 0.18% [2],[8],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[12] $ 9,046  
Ending balance $ 9,791 [1],[3],[7] $ 9,046 [2],[8],[12]
Investment, Identifier [Axis]: CFCo LLC (Benefytt Technologies, Inc.)    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.00% [1],[5],[7],[15],[22],[23] 0.00% [2],[12],[16],[21],[24]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[16],[21],[24] $ 68  
Ending balance $ 0 [1],[5],[7],[15],[22],[23] $ 68 [2],[12],[16],[21],[24]
Investment, Identifier [Axis]: CFCo LLC (Benefytt Technologies, Inc.) - Class B Units    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.00% [1],[7] 0.00% [2],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12] $ 0  
Ending balance $ 0 [1],[7] $ 0 [2],[12]
Investment, Identifier [Axis]: CFGI Holdings, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.13% [1],[3],[4],[7] 0.14% [2],[8],[9],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] $ 6,942  
Ending balance 6,904 [1],[3],[4],[7] $ 6,942 [2],[8],[9],[12]
Investment, Identifier [Axis]: CFGI Holdings, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 1,050 1,050
Fair Value $ (21) $ (21)
Investment, Identifier [Axis]: CFS Brands, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 2.19% [1],[4],[7],[13] 2.34% [2],[9],[11],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[11],[12],[14] $ 115,897  
Ending balance 118,042 [1],[4],[7],[13] $ 115,897 [2],[9],[11],[12],[14]
Investment, Identifier [Axis]: CFS Brands, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 12,118 12,118
Fair Value (121) 0
Investment, Identifier [Axis]: CFS Brands, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 18,177 18,177
Fair Value $ 0 $ (364)
Investment, Identifier [Axis]: COP Home Services TopCo IV, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.69% [1],[4],[5],[7],[13] 0.76% [2],[9],[10],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[10],[12],[14] $ 37,541  
Ending balance 37,351 [1],[4],[5],[7],[13] $ 37,541 [2],[9],[10],[12],[14]
Investment, Identifier [Axis]: COP Home Services TopCo IV, Inc., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 8,730 8,730
Fair Value (131) (131)
Investment, Identifier [Axis]: COP Home Services TopCo IV, Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 3,509 3,509
Fair Value (38) $ (38)
Investment, Identifier [Axis]: CPI Buyer, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[9],[12]   0.61%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] $ 30,063  
Ending balance [2],[8],[9],[12]   $ 30,063
Investment, Identifier [Axis]: CPI Buyer, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[7] 0.56%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[7] $ 30,141  
Investment, Identifier [Axis]: CPI Buyer, LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[7] 0.01%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[7] $ 522  
Investment, Identifier [Axis]: CPI Buyer, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 2,047  
Fair Value 0  
Investment, Identifier [Axis]: CPI Buyer, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 3,214 3,214
Fair Value (64) $ (64)
Investment, Identifier [Axis]: CPI Intermediate Holdings Inc    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[9],[10],[12]   0.08%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[10],[12] 3,924  
Ending balance [2],[8],[9],[10],[12]   $ 3,924
Investment, Identifier [Axis]: CPI Intermediate Holdings Inc, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments   966
Fair Value   $ (10)
Investment, Identifier [Axis]: Caerus Midco 2 S.À. R.L - Additional Vehicle Units    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[11],[12]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[11],[12] 1  
Ending balance [2],[11],[12]   $ 1
Investment, Identifier [Axis]: Caerus Midco 2 S.À. R.L - Vehicle Units    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[11],[12]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[11],[12] $ 54  
Ending balance [2],[11],[12]   $ 54
Investment, Identifier [Axis]: Caerus Midco 2 S.à r.l. - Additional Vehicle Units    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[6],[7] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[6],[7] $ 1  
Investment, Identifier [Axis]: Caerus Midco 2 S.à r.l. - Vehicle Units    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[6],[7] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[6],[7] $ 54  
Investment, Identifier [Axis]: Caerus US 1, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.18% [1],[3],[5],[6],[7] 0.20% [2],[8],[11],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[11],[12] $ 9,788  
Ending balance $ 9,837 [1],[3],[5],[6],[7] $ 9,788 [2],[8],[11],[12]
Investment, Identifier [Axis]: Caerus US 1, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.05% [1],[3],[4],[5],[6],[7] 0.06% [2],[8],[9],[11],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[11],[12] $ 3,163  
Ending balance $ 2,851 [1],[3],[4],[5],[6],[7] $ 3,163 [2],[8],[9],[11],[12]
Investment, Identifier [Axis]: Caerus US 1, Inc. 3    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.00% [1],[3],[4],[5],[6],[7] 0.02% [2],[8],[9],[11],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[11],[12] $ 791  
Ending balance $ 138 [1],[3],[4],[5],[6],[7] $ 791 [2],[8],[9],[11],[12]
Investment, Identifier [Axis]: Caerus US 1, Inc. 4    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[6],[7],[15] 0.93%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[6],[7],[15] $ 50,000  
Investment, Identifier [Axis]: Caerus US 1, Inc. 5    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[6],[7] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[6],[7] $ 257  
Investment, Identifier [Axis]: Caerus US 1, Inc., Delayed Draw Term Loan 1    
Schedule of Investments [Line Items]    
Unfunded commitments 836 836
Fair Value 0 0
Investment, Identifier [Axis]: Caerus US 1, Inc., Delayed Draw Term Loan 2    
Schedule of Investments [Line Items]    
Unfunded commitments 178 178
Fair Value 0 0
Investment, Identifier [Axis]: Caerus US 1, Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 1,030 322
Fair Value $ 0 $ 0
Investment, Identifier [Axis]: Cambium Holdings, LLC - Senior Preferred Interests    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.32% [1],[7] 0.32% [2],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12] $ 15,955  
Ending balance $ 17,037 [1],[7] $ 15,955 [2],[12]
Investment, Identifier [Axis]: Cambium Learning Group, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 5.33% [1],[3],[4],[7] 5.84% [2],[8],[9],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] $ 289,143  
Ending balance 287,664 [1],[3],[4],[7] $ 289,143 [2],[8],[9],[12]
Investment, Identifier [Axis]: Cambium Learning Group, Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 43,592 43,592
Fair Value $ 0 $ 0
Investment, Identifier [Axis]: Canadian Hospital Specialties Ltd.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.12% [1],[5],[6],[7],[15] 0.14% [2],[10],[11],[12],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[10],[11],[12],[16] $ 7,075  
Ending balance $ 6,718 [1],[5],[6],[7],[15] $ 7,075 [2],[10],[11],[12],[16]
Investment, Identifier [Axis]: Canadian Hospital Specialties Ltd. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.39% [1],[5],[6],[7],[13] 0.51% [2],[10],[11],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[10],[11],[12],[14] $ 25,356  
Ending balance $ 21,008 [1],[5],[6],[7],[13] $ 25,356 [2],[10],[11],[12],[14]
Investment, Identifier [Axis]: Canadian Hospital Specialties Ltd. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.05% [1],[3],[5],[6],[7] 0.05% [2],[8],[10],[11],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[10],[11],[12] $ 2,683  
Ending balance $ 2,566 [1],[3],[5],[6],[7] $ 2,683 [2],[8],[10],[11],[12]
Investment, Identifier [Axis]: Capstone Logistics, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.10% [1],[7],[13] 0.11% [2],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[14] $ 5,501  
Ending balance $ 5,473 [1],[7],[13] $ 5,501 [2],[14]
Investment, Identifier [Axis]: Castle Management Borrower, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.45% [1],[4],[7],[13] 0.46% [2],[9],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[12],[14] $ 22,940  
Ending balance 24,092 [1],[4],[7],[13] $ 22,940 [2],[9],[12],[14]
Investment, Identifier [Axis]: Castle Management Borrower, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 2,042 2,917
Fair Value $ 0 $ (44)
Investment, Identifier [Axis]: Channelside Acquisitionco Inc 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[7] 0.37%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[7] $ 19,797  
Investment, Identifier [Axis]: Channelside Acquisitionco Inc 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[7] 0.02%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[7] $ 847  
Investment, Identifier [Axis]: Channelside Acquisitionco Inc, Delayed Draw Term Loan 1    
Schedule of Investments [Line Items]    
Unfunded commitments 1,980  
Fair Value (6)  
Investment, Identifier [Axis]: Channelside Acquisitionco Inc, Delayed Draw Term Loan 2    
Schedule of Investments [Line Items]    
Unfunded commitments 19  
Fair Value 0  
Investment, Identifier [Axis]: Channelside Acquisitionco Inc, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 2,330  
Fair Value $ 0  
Investment, Identifier [Axis]: Charger Debt Merger Sub, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[7] 0.22%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[7] $ 11,822  
Investment, Identifier [Axis]: Charger Debt Merger Sub, LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[7] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[7] $ 138  
Investment, Identifier [Axis]: Charger Debt Merger Sub, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 6,350  
Fair Value 0  
Investment, Identifier [Axis]: Charger Debt Merger Sub, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 1,522  
Fair Value (15)  
Investment, Identifier [Axis]: Circana Group, L.P. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[12]   2.43%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[12] 120,332  
Ending balance [2],[8],[12]   $ 120,332
Investment, Identifier [Axis]: Circana Group, L.P. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[12]   1.56%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[12] 77,153  
Ending balance [2],[8],[12]   $ 77,153
Investment, Identifier [Axis]: Circana Group, L.P. 3    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[9],[12]   0.05%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] $ 2,484  
Ending balance [2],[8],[9],[12]   $ 2,484
Investment, Identifier [Axis]: Circana Group, L.P., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments   11,316
Fair Value   $ 0
Investment, Identifier [Axis]: Cisive Holdings Corp    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[4],[7],[13] 0.15%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[4],[7],[13] $ 8,337  
Investment, Identifier [Axis]: Cisive Holdings Corp., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 1,111  
Fair Value $ (22)  
Investment, Identifier [Axis]: Clearview Buyer, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.14% [1],[3],[4],[5],[7] 0.18% [2],[8],[9],[10],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[10],[12] $ 8,909  
Ending balance 7,286 [1],[3],[4],[5],[7] $ 8,909 [2],[8],[9],[10],[12]
Investment, Identifier [Axis]: Clearview Buyer, Inc., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 3,668 3,668
Fair Value 0 0
Investment, Identifier [Axis]: Clearview Buyer, Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 898 898
Fair Value $ 0 $ (18)
Investment, Identifier [Axis]: Color Intermediate LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.37% [1],[3],[5],[7] 0.41% [2],[8],[10],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[10],[12] $ 20,160  
Ending balance $ 20,059 [1],[3],[5],[7] $ 20,160 [2],[8],[10],[12]
Investment, Identifier [Axis]: Community Brands ParentCo, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.09% [1],[3],[4],[5],[7] 0.10% [2],[8],[9],[10],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[10],[12] $ 4,893  
Ending balance 4,888 [1],[3],[4],[5],[7] $ 4,893 [2],[8],[9],[10],[12]
Investment, Identifier [Axis]: Community Brands ParentCo, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments   588
Fair Value   (6)
Investment, Identifier [Axis]: Community Brands ParentCo, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 345 345
Fair Value $ 0 $ (1)
Investment, Identifier [Axis]: Confine Visual Bidco    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.25% [1],[3],[6],[7] 0.28% [2],[8],[9],[11],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[11],[12] $ 13,936  
Ending balance $ 13,729 [1],[3],[6],[7] $ 13,936 [2],[8],[9],[11],[12]
Investment, Identifier [Axis]: Confine Visual Bidco, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments   3,043
Fair Value   $ 0
Investment, Identifier [Axis]: Connatix Buyer, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.38% [1],[3],[4],[5],[7] 0.39% [2],[8],[9],[10],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[10],[12] $ 19,362  
Ending balance 20,401 [1],[3],[4],[5],[7] $ 19,362 [2],[8],[9],[10],[12]
Investment, Identifier [Axis]: Connatix Buyer, Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 5,431 5,431
Fair Value $ (217) $ (448)
Investment, Identifier [Axis]: Connatix Parent, LLC - Class L Common Units    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.00% [1],[7] 0.00% [2],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12] $ 117  
Ending balance $ 181 [1],[7] $ 117 [2],[12]
Investment, Identifier [Axis]: Consor Intermediate II LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [3],[4],[5],[7] 0.08%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [3],[4],[5],[7] $ 4,328  
Investment, Identifier [Axis]: Consor Intermediate II LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 4,002  
Fair Value (20)  
Investment, Identifier [Axis]: Consor Intermediate II LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 1,067  
Fair Value $ (11)  
Investment, Identifier [Axis]: Continental Buyer Inc    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[7] 0.34%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[7] $ 18,088  
Investment, Identifier [Axis]: Continental Buyer Inc, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 7,239  
Fair Value (54)  
Investment, Identifier [Axis]: Continental Buyer Inc, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 2,715  
Fair Value $ (41)  
Investment, Identifier [Axis]: Corfin Holdings, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[7] 4.92%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[7] $ 265,625  
Investment, Identifier [Axis]: Corfin Holdings, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[12]   3.88%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[12] 192,311  
Ending balance [2],[8],[12]   $ 192,311
Investment, Identifier [Axis]: Corfin Holdings, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[12],[14]   1.34%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[14] $ 66,500  
Ending balance [2],[12],[14]   $ 66,500
Investment, Identifier [Axis]: Coupa Software Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.03% [1],[3],[4],[5],[6],[7] 0.04% [2],[8],[9],[10],[11],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[10],[11],[12] $ 1,819  
Ending balance 1,834 [1],[3],[4],[5],[6],[7] $ 1,819 [2],[8],[9],[10],[11],[12]
Investment, Identifier [Axis]: Coupa Software Inc., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 164 164
Fair Value (2) (2)
Investment, Identifier [Axis]: Coupa Software Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 126 126
Fair Value $ 0 $ (1)
Investment, Identifier [Axis]: Crewline Buyer, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 1.11% [1],[4],[6],[7],[13] 1.18% [2],[9],[11],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[11],[12],[14] $ 58,282  
Ending balance 59,771 [1],[4],[6],[7],[13] $ 58,282 [2],[9],[11],[12],[14]
Investment, Identifier [Axis]: Crewline Buyer, Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 6,438 6,438
Fair Value $ (16) $ (156)
Investment, Identifier [Axis]: Cumming Group, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 1.48% [1],[4],[7],[13] 1.59% [2],[9],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[12],[14] $ 78,670  
Ending balance $ 79,653 [1],[4],[7],[13] $ 78,670 [2],[9],[12],[14]
Investment, Identifier [Axis]: Cumming Group, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.21% [1],[4],[5],[7],[13] 0.19% [2],[9],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[12],[14] $ 9,448  
Ending balance 11,477 [1],[4],[5],[7],[13] $ 9,448 [2],[9],[12],[14]
Investment, Identifier [Axis]: Cumming Group, Inc., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 6,128 8,063
Fair Value 0 (60)
Investment, Identifier [Axis]: Cumming Group, Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 12,695 12,695
Fair Value $ 0 $ (190)
Investment, Identifier [Axis]: CustomInk, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 3.03% [1],[7],[13],[23] 3.30% [2],[12],[14],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[14],[21] $ 163,594  
Ending balance $ 163,594 [1],[7],[13],[23] $ 163,594 [2],[12],[14],[21]
Investment, Identifier [Axis]: CustomInk, LLC - Series A Preferred Units    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.15% [1],[7] 0.14% [2],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12] $ 7,171  
Ending balance $ 7,844 [1],[7] $ 7,171 [2],[12]
Investment, Identifier [Axis]: DCA Investment Holdings, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.61% [1],[3],[7] 0.66% [2],[8],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[12] $ 32,620  
Ending balance $ 32,688 [1],[3],[7] $ 32,620 [2],[8],[12]
Investment, Identifier [Axis]: DCA Investment Holdings, LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.02% [1],[7],[13] 0.02% [2],[8],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[12] $ 990  
Ending balance $ 990 [1],[7],[13] $ 990 [2],[8],[12]
Investment, Identifier [Axis]: DCG Acquisition Corp    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[7] 0.65%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[7] $ 35,061  
Investment, Identifier [Axis]: DCG Acquisition Corp, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 5,937  
Fair Value 0  
Investment, Identifier [Axis]: DCG Acquisition Corp, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 5,937  
Fair Value $ (59)  
Investment, Identifier [Axis]: DTA Intermediate II Ltd. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[4],[7],[13] 0.79%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[4],[7],[13] $ 42,432  
Investment, Identifier [Axis]: DTA Intermediate II Ltd. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[4],[5],[7],[13] 0.06%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[4],[5],[7],[13] $ 3,037  
Investment, Identifier [Axis]: DTA Intermediate II Ltd., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 16,154  
Fair Value 0  
Investment, Identifier [Axis]: DTA Intermediate II Ltd., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 10,769  
Fair Value $ (108)  
Investment, Identifier [Axis]: DTA LP - Class A Units    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[7] 0.04%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[7] $ 2,171  
Investment, Identifier [Axis]: Dana Kepner Company, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[12],[14]   1.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[14] $ 49,700  
Ending balance [2],[12],[14]   $ 49,700
Investment, Identifier [Axis]: Daylight Beta Parent LLC (Benefytt Technologies, Inc.)    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.03% [1],[5],[7],[15],[22] 0.11% [2],[12],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[16] $ 5,419  
Ending balance $ 1,506 [1],[5],[7],[15],[22] $ 5,419 [2],[12],[16]
Investment, Identifier [Axis]: Dechra Pharmaceuticals Holdings Ltd 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[4],[5],[6],[7],[15] 0.02%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[4],[5],[6],[7],[15] $ 1,098  
Investment, Identifier [Axis]: Dechra Pharmaceuticals Holdings Ltd 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[6],[7] 0.02%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[6],[7] $ 1,032  
Investment, Identifier [Axis]: Dechra Pharmaceuticals Holdings Ltd., Delayed Draw Term Loan 1    
Schedule of Investments [Line Items]    
Unfunded commitments 260  
Fair Value (3)  
Investment, Identifier [Axis]: Dechra Pharmaceuticals Holdings Ltd., Delayed Draw Term Loan 2    
Schedule of Investments [Line Items]    
Unfunded commitments 218  
Fair Value $ (3)  
Investment, Identifier [Axis]: Dellner Couplers Group AB    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[5],[6],[7],[15] 0.02%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[5],[6],[7],[15] $ 1,068  
Investment, Identifier [Axis]: Denali Bidco Ltd 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.09% [1],[3],[4],[5],[6],[7] 0.06% [2],[8],[9],[10],[11],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[10],[11],[12] $ 2,783  
Ending balance $ 5,055 [1],[3],[4],[5],[6],[7] $ 2,783 [2],[8],[9],[10],[11],[12]
Investment, Identifier [Axis]: Denali Bidco Ltd 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.05% [1],[3],[5],[6],[7],[15] 0.03% [2],[10],[11],[12],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[10],[11],[12],[16] $ 1,268  
Ending balance $ 2,961 [1],[3],[5],[6],[7],[15] $ 1,268 [2],[10],[11],[12],[16]
Investment, Identifier [Axis]: Denali Bidco Ltd 3    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[5],[6],[7],[13],[15] 0.01%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[5],[6],[7],[13],[15] $ 276  
Investment, Identifier [Axis]: Denali Bidco Ltd, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 300 1,761
Fair Value (3) $ (3)
Investment, Identifier [Axis]: Descartes Holdings, Inc    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[12]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12] $ 102  
Ending balance [2],[12]   $ 102
Investment, Identifier [Axis]: Descartes Holdings, Inc - Class A Units    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[7] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[7] $ 35  
Investment, Identifier [Axis]: Diligent Corp 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[7] 0.92%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[7] $ 49,683  
Investment, Identifier [Axis]: Diligent Corp 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[7] 0.16%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[7] $ 8,517  
Investment, Identifier [Axis]: Diligent Corporation    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[12],[14]   1.18%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[14] $ 58,350  
Ending balance [2],[12],[14]   $ 58,350
Investment, Identifier [Axis]: Discovery Education, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.06% [1],[5],[7],[13] 0.07% [2],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[14] $ 3,575  
Ending balance $ 3,418 [1],[5],[7],[13] $ 3,575 [2],[12],[14]
Investment, Identifier [Axis]: Discovery Education, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.61% [1],[3],[7] 0.64% [2],[8],[9],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] $ 31,648  
Ending balance $ 33,101 [1],[3],[7] $ 31,648 [2],[8],[9],[12]
Investment, Identifier [Axis]: Discovery Education, Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments   2,960
Fair Value   $ (118)
Investment, Identifier [Axis]: Doc Generici (Diocle S.p.A.)    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.03% [1],[4],[5],[6],[7],[15] 0.03% [2]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2] $ 1,349  
Ending balance 1,869 [1],[4],[5],[6],[7],[15] $ 1,349 [2]
Investment, Identifier [Axis]: Doc Generici (Diocle S.p.A.), Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 1,682 1,682
Fair Value (13) $ (591)
Investment, Identifier [Axis]: Donuts, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[12],[14]   6.45%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[14] $ 319,179  
Ending balance [2],[12],[14]   $ 319,179
Investment, Identifier [Axis]: EIS Acquisition Holdings, LP - Class A Common Units    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.21% [1],[7] 0.27% [2],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12] $ 13,455  
Ending balance $ 11,215 [1],[7] $ 13,455 [2],[12]
Investment, Identifier [Axis]: ENV Bidco AB 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.02% [1],[3],[5],[6],[7] 0.02% [2],[8],[11],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[11],[12] $ 1,001  
Ending balance $ 1,006 [1],[3],[5],[6],[7] $ 1,001 [2],[8],[11],[12]
Investment, Identifier [Axis]: ENV Bidco AB 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.02% [1],[3],[6],[7] 0.02% [2],[9],[10],[11],[12],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[10],[11],[12],[16] $ 1,079  
Ending balance 1,198 [1],[3],[6],[7] $ 1,079 [2],[9],[10],[11],[12],[16]
Investment, Identifier [Axis]: ENV Bidco AB, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 433 433
Fair Value $ (3) $ (153)
Investment, Identifier [Axis]: Eagle Midstream Canada Finance, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 1.21% [1],[3],[6],[7] 1.31% [2]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2] $ 65,109  
Ending balance $ 65,103 [1],[3],[6],[7] $ 65,109 [2]
Investment, Identifier [Axis]: Eden Acquisitionco Ltd    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[6],[7] 0.37%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[6],[7] $ 19,781  
Investment, Identifier [Axis]: Eden Acquisitionco Ltd, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 43,368  
Fair Value $ (607)  
Investment, Identifier [Axis]: Edifecs, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.25% [1],[3],[7] 0.27% [2],[8],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[12] $ 13,447  
Ending balance $ 13,501 [1],[3],[7] $ 13,447 [2],[8],[12]
Investment, Identifier [Axis]: Edifecs, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 4.04% [1],[7],[13] 4.38% [2],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[14] $ 216,910  
Ending balance $ 217,779 [1],[7],[13] $ 216,910 [2],[12],[14]
Investment, Identifier [Axis]: Elements Finco Ltd 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[5],[6],[7],[15] 0.09%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[5],[6],[7],[15] $ 4,995  
Investment, Identifier [Axis]: Elements Finco Ltd 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[4],[5],[6],[7],[15] 0.45%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[4],[5],[6],[7],[15] $ 24,183  
Investment, Identifier [Axis]: Elements Finco Ltd 3    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[5],[6],[7],[15] 0.11%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[5],[6],[7],[15] $ 6,002  
Investment, Identifier [Axis]: Elements Finco Ltd, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 10,851  
Fair Value $ (55)  
Investment, Identifier [Axis]: Emergency Power Holdings, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.88% [1],[4],[5],[7],[13] 0.93% [2],[9],[10],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[10],[12],[14] $ 46,064  
Ending balance 47,708 [1],[4],[5],[7],[13] $ 46,064 [2],[9],[10],[12],[14]
Investment, Identifier [Axis]: Emergency Power Holdings, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 14,586 16,456
Fair Value $ (146) $ (165)
Investment, Identifier [Axis]: Endeavor Schools Holdings LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.40% [1],[4],[7],[13] 0.44% [2],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[14] $ 21,796  
Ending balance $ 21,521 [1],[4],[7],[13] $ 21,796 [2],[12],[14]
Investment, Identifier [Axis]: Endeavor Schools Holdings LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.07% [1],[7],[13] 0.08% [2],[9],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[12],[14] $ 3,944  
Ending balance 3,911 [1],[7],[13] $ 3,944 [2],[9],[12],[14]
Investment, Identifier [Axis]: Endeavor Schools Holdings LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 5,776 5,776
Fair Value $ 0 $ 0
Investment, Identifier [Axis]: Episerver, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.17% [4],[5],[7],[13] 0.18% [2],[9],[10],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[10],[12],[14] $ 9,081  
Ending balance 9,381 [4],[5],[7],[13] $ 9,081 [2],[9],[10],[12],[14]
Investment, Identifier [Axis]: Episerver, Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 2,064 2,064
Fair Value $ (21) $ (83)
Investment, Identifier [Axis]: Epoch Acquisition, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.44% [1],[7],[13] 0.48% [2],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[14] $ 23,934  
Ending balance 23,927 [1],[7],[13] $ 23,934 [2],[12],[14]
Investment, Identifier [Axis]: Ergomed Plc    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2]   0.43%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2] $ 21,260  
Ending balance [2]   $ 21,260
Investment, Identifier [Axis]: Ergomed Plc, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments   46,934
Fair Value   $ 0
Investment, Identifier [Axis]: Essential Services Holding Corp    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[4],[7],[13] 0.21%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[4],[7],[13] $ 11,574  
Investment, Identifier [Axis]: Essential Services Holding Corp, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 2,297  
Fair Value (11)  
Investment, Identifier [Axis]: Essential Services Holding Corp, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 1,436  
Fair Value (14)  
Investment, Identifier [Axis]: Everbridge Holdings LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 5,542  
Fair Value 0  
Investment, Identifier [Axis]: Everbridge Holdings LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 2,211  
Fair Value 0  
Investment, Identifier [Axis]: Everbridge Holdings LLC, Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 22,111  
Fair Value $ 0  
Investment, Identifier [Axis]: Expedition Holdco, LLC - Class A Units    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.00% [1],[7] 0.00% [2],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12] $ 40  
Ending balance $ 46 [1],[7] $ 40 [2],[12]
Investment, Identifier [Axis]: Expedition Holdco, LLC - Class B Units    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.00% [1],[7] 0.00% [2],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12] $ 11  
Ending balance $ 12 [1],[7] $ 11 [2],[12]
Investment, Identifier [Axis]: Experity, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.27% [3],[4],[5],[7] 0.30% [2],[8],[9],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] $ 14,664  
Ending balance 14,790 [3],[4],[5],[7] $ 14,664 [2],[8],[9],[12]
Investment, Identifier [Axis]: Experity, Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 1,495 1,495
Fair Value $ 0 $ (15)
Investment, Identifier [Axis]: Fencing Supply Group Acquisition, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.97% [1],[4],[7],[13] 1.06% [2],[9],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[12],[14] $ 52,735  
Ending balance 52,489 [1],[4],[7],[13] $ 52,735 [2],[9],[12],[14]
Investment, Identifier [Axis]: Fencing Supply Group Acquisition, LLC, Delayed Draw Term Loan 1    
Schedule of Investments [Line Items]    
Unfunded commitments   1,910
Fair Value   (24)
Investment, Identifier [Axis]: Fencing Supply Group Acquisition, LLC, Delayed Draw Term Loan 2    
Schedule of Investments [Line Items]    
Unfunded commitments   1,637
Fair Value   $ 0
Investment, Identifier [Axis]: Fern Bidco Ltd, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 12,713  
Fair Value 0  
Investment, Identifier [Axis]: Fern Bidco Ltd, Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 25,170  
Fair Value $ 0  
Investment, Identifier [Axis]: Formulations Parent Corp.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.16% [3],[4],[7] 0.17% [2],[8],[9],[11],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[11],[12] $ 8,386  
Ending balance 8,550 [3],[4],[7] $ 8,386 [2],[8],[9],[11],[12]
Investment, Identifier [Axis]: Formulations Parent Corp., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 1,429 1,429
Fair Value 0 $ (26)
Investment, Identifier [Axis]: Foundation Risk Partners Corp.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[9],[12]   0.32%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] $ 15,880  
Ending balance [2],[8],[9],[12]   $ 15,880
Investment, Identifier [Axis]: Foundation Risk Partners Corp. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[7] 0.29%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[7] $ 15,819  
Investment, Identifier [Axis]: Foundation Risk Partners Corp. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[7] 0.06%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[7] $ 3,063  
Investment, Identifier [Axis]: Foundation Risk Partners Corp., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments   6,920
Fair Value   (69)
Investment, Identifier [Axis]: Foundation Risk Partners Corp., Delayed Draw Term Loan 1    
Schedule of Investments [Line Items]    
Unfunded commitments 3,783  
Fair Value 0  
Investment, Identifier [Axis]: Foundation Risk Partners Corp., Delayed Draw Term Loan 2    
Schedule of Investments [Line Items]    
Unfunded commitments 4,582  
Fair Value (23)  
Investment, Identifier [Axis]: Foundation Risk Partners Corp., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 4,101 2,382
Fair Value $ (62) (36)
Investment, Identifier [Axis]: Freya Bidco Limited, Delayed Draw Term Loan 1    
Schedule of Investments [Line Items]    
Unfunded commitments   257
Fair Value   0
Investment, Identifier [Axis]: Freya Bidco Limited, Delayed Draw Term Loan 2    
Schedule of Investments [Line Items]    
Unfunded commitments   257
Fair Value   0
Investment, Identifier [Axis]: Freya Bidco Limited, Term Loan 1    
Schedule of Investments [Line Items]    
Unfunded commitments   1,009
Fair Value   0
Investment, Identifier [Axis]: Freya Bidco Limited, Term Loan 2    
Schedule of Investments [Line Items]    
Unfunded commitments   1,107
Fair Value   $ 0
Investment, Identifier [Axis]: Frontgrade Technologies Holdings, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.04% [1],[3],[4],[5],[7] 0.05% [2],[8],[9],[10],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[10],[12] $ 2,370  
Ending balance 2,358 [1],[3],[4],[5],[7] $ 2,370 [2],[8],[9],[10],[12]
Investment, Identifier [Axis]: Frontgrade Technologies Holdings, Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 516 516
Fair Value $ 0 $ 0
Investment, Identifier [Axis]: Frontline Road Safety Investments, LLC - Class A Common Units    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.10% [1],[7] 0.08% [2],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12] $ 3,776  
Ending balance $ 5,440 [1],[7] $ 3,776 [2],[12]
Investment, Identifier [Axis]: Frontline Road Safety, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 1.85% [1],[3],[7] 1.77% [2],[8],[9]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9] $ 87,637  
Ending balance $ 99,852 [1],[3],[7] $ 87,637 [2],[8],[9]
Investment, Identifier [Axis]: Frontline Road Safety, LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.08% [1],[3],[4],[5],[7] 0.22% [2],[8]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8] $ 10,831  
Ending balance 4,260 [1],[3],[4],[5],[7] $ 10,831 [2],[8]
Investment, Identifier [Axis]: Frontline Road Safety, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 6,598 10,996
Fair Value $ 0 $ (137)
Investment, Identifier [Axis]: FusionSite Midco, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.47% [1],[4],[7],[13] 0.51% [2],[9],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[12],[14] $ 25,334  
Ending balance $ 25,401 [1],[4],[7],[13] $ 25,334 [2],[9],[12],[14]
Investment, Identifier [Axis]: FusionSite Midco, LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.18% [1],[4],[5],[7],[13] 0.05% [2],[9],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[12],[14] $ 2,231  
Ending balance 9,791 [1],[4],[5],[7],[13] $ 2,231 [2],[9],[12],[14]
Investment, Identifier [Axis]: FusionSite Midco, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 1,200 8,800
Fair Value 0 0
Investment, Identifier [Axis]: FusionSite Midco, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 2,791 2,791
Fair Value $ (63) $ (63)
Investment, Identifier [Axis]: G&A Partners Holding Company II, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[4],[7],[17] 0.57%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[4],[7],[17] $ 30,879  
Investment, Identifier [Axis]: G&A Partners Holding Company II, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 11,967  
Fair Value 0  
Investment, Identifier [Axis]: G&A Partners Holding Company II, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 3,288  
Fair Value $ (41)  
Investment, Identifier [Axis]: GCX Corporation Buyer, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.39% [1],[3],[5],[7] 0.43% [2],[8],[10],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[10],[12] $ 21,182  
Ending balance $ 21,074 [1],[3],[5],[7] $ 21,182 [2],[8],[10],[12]
Investment, Identifier [Axis]: GCX Corporation Buyer, LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.10% [1],[3],[5],[7] 0.11% [2],[8],[10],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[10],[12] $ 5,363  
Ending balance $ 5,336 [1],[3],[5],[7] $ 5,363 [2],[8],[10],[12]
Investment, Identifier [Axis]: GCX Corporation Group Holdings, L.P. - Class A-2 Units    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.01% [1],[7] 0.01% [2],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12] $ 302  
Ending balance 318 [1],[7] $ 302 [2],[12]
Investment, Identifier [Axis]: GI Consilio Parent, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[9],[10],[12],[16]   0.01%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[10],[12],[16] $ 554  
Ending balance [2],[9],[10],[12],[16]   $ 554
Investment, Identifier [Axis]: GI Consilio Parent, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments   561
Fair Value   $ 0
Investment, Identifier [Axis]: GI Ranger Intermediate, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[7] 0.30%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[7] $ 16,385  
Investment, Identifier [Axis]: GI Ranger Intermediate, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[9],[12]   0.32%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] 15,726  
Ending balance [2],[8],[9],[12]   $ 15,726
Investment, Identifier [Axis]: GI Ranger Intermediate, LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[9],[12]   0.01%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] 720  
Ending balance [2],[8],[9],[12]   $ 720
Investment, Identifier [Axis]: GI Ranger Intermediate, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments   3,040
Fair Value   0
Investment, Identifier [Axis]: GI Ranger Intermediate, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 1,200 480
Fair Value $ 0 $ 0
Investment, Identifier [Axis]: GS Acquisitionco Inc 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[4],[5],[7],[17] 0.01%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[4],[5],[7],[17] $ 406  
Investment, Identifier [Axis]: GS Acquisitionco Inc 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[7] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[7] $ 257  
Investment, Identifier [Axis]: GS Acquisitionco Inc, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 7,573  
Fair Value 0  
Investment, Identifier [Axis]: GS Acquisitionco Inc, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 1,733  
Fair Value $ 0  
Investment, Identifier [Axis]: GTCR Investors LP - A-1 Units    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.01% [1],[7] 0.01% [2],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12] $ 417  
Ending balance 417 [1],[7] $ 417 [2],[12]
Investment, Identifier [Axis]: Galway Borrower, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[9],[10],[12]   0.24%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[10],[12] $ 12,032  
Ending balance [2],[8],[9],[10],[12]   $ 12,032
Investment, Identifier [Axis]: Galway Borrower, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[7] 0.22%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[7] $ 11,920  
Investment, Identifier [Axis]: Galway Borrower, LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[7] 0.02%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[7] $ 1,202  
Investment, Identifier [Axis]: Galway Borrower, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 52,753  
Fair Value (264)  
Investment, Identifier [Axis]: Galway Borrower, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 7,558 2,120
Fair Value 0 $ (32)
Investment, Identifier [Axis]: Gannett Fleming, Inc, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 6,144  
Fair Value 0  
Investment, Identifier [Axis]: Gannett Fleming, Inc, Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 61,435  
Fair Value $ 0  
Investment, Identifier [Axis]: Genuine Cable Group, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 3.00% [1],[3],[7] 3.31% [2],[8],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[12] $ 164,014  
Ending balance 161,921 [1],[3],[7] $ 164,014 [2],[8],[12]
Investment, Identifier [Axis]: Gigamon Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[9],[12]   0.15%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] $ 7,308  
Ending balance [2],[8],[9],[12]   $ 7,308
Investment, Identifier [Axis]: Gigamon Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [7],[13] 0.14%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [7],[13] $ 7,289  
Investment, Identifier [Axis]: Gigamon Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[4],[5],[7],[13],[15] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[4],[5],[7],[13],[15] $ 175  
Investment, Identifier [Axis]: Gigamon Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 262 437
Fair Value $ 0 $ (1)
Investment, Identifier [Axis]: Gimlet Bidco GmbH 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [6],[7],[15] 0.59%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [6],[7],[15] $ 31,973  
Investment, Identifier [Axis]: Gimlet Bidco GmbH 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [4],[6],[7],[15] 0.04%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [4],[6],[7],[15] $ 2,232  
Investment, Identifier [Axis]: Gimlet Bidco GmbH, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 10,924  
Fair Value $ 0  
Investment, Identifier [Axis]: Go Car Wash Management Corp.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.41% [1],[7],[13] 0.44% [2],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[14] $ 21,941  
Ending balance 22,221 [1],[7],[13] $ 21,941 [2],[12],[14]
Investment, Identifier [Axis]: GovernmentJobs.com, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[9],[12]   0.10%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] $ 5,156  
Ending balance [2],[8],[9],[12]   $ 5,156
Investment, Identifier [Axis]: GovernmentJobs.com, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[7] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[7] $ 5,143  
Investment, Identifier [Axis]: GovernmentJobs.com, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[7] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[7] $ 105  
Investment, Identifier [Axis]: GovernmentJobs.com, Inc., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 2,086  
Fair Value 0  
Investment, Identifier [Axis]: GovernmentJobs.com, Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 559 677
Fair Value $ 0 $ (14)
Investment, Identifier [Axis]: Granicus, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[7] 0.32%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[7] $ 17,418  
Investment, Identifier [Axis]: Granicus, Inc., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 2,583  
Fair Value (13)  
Investment, Identifier [Axis]: Granicus, Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 2,409  
Fair Value 0  
Investment, Identifier [Axis]: GraphPAD Software, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[12],[14]   0.27%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[14] 13,518  
Ending balance [2],[12],[14]   $ 13,518
Investment, Identifier [Axis]: GraphPAD Software, LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[12],[14]   0.26%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[14] 12,797  
Ending balance [2],[12],[14]   $ 12,797
Investment, Identifier [Axis]: GraphPAD Software, LLC 3    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[12],[14]   0.13%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[14] 6,429  
Ending balance [2],[12],[14]   $ 6,429
Investment, Identifier [Axis]: GraphPAD Software, LLC 4    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[9],[12],[14]   0.02%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[12],[14] $ 1,030  
Ending balance [2],[9],[12],[14]   $ 1,030
Investment, Identifier [Axis]: GraphPAD Software, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments   1,062
Fair Value   $ 0
Investment, Identifier [Axis]: Graphpad Software LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[7] 0.44%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[7] $ 23,983  
Investment, Identifier [Axis]: Graphpad Software LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 6,036  
Fair Value (30)  
Investment, Identifier [Axis]: Graphpad Software LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 2,264  
Fair Value (11)  
Investment, Identifier [Axis]: Groundworks, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[9],[10],[12],[14]   0.02%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[10],[12],[14] $ 802  
Ending balance [2],[9],[10],[12],[14]   $ 802
Investment, Identifier [Axis]: Groundworks, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments   37
Fair Value   0
Investment, Identifier [Axis]: Groundworks, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments   42
Fair Value   $ (1)
Investment, Identifier [Axis]: Guidehouse, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 5.73% [1],[3],[7] 6.13% [2],[8],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[12] $ 303,558  
Ending balance $ 309,363 [1],[3],[7] $ 303,558 [2],[8],[12]
Investment, Identifier [Axis]: Gusto Sing Bidco Pte Ltd    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[6],[7] 0.01%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[6],[7] $ 651  
Investment, Identifier [Axis]: Gusto Sing Bidco Pte Ltd, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 101  
Fair Value (3)  
Investment, Identifier [Axis]: HIG Orca Acquisition Holdings, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[9],[10],[12],[14]   0.39%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[10],[12],[14] 19,091  
Ending balance [2],[9],[10],[12],[14]   $ 19,091
Investment, Identifier [Axis]: HIG Orca Acquisition Holdings, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[9],[10],[12],[14]   0.06%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[10],[12],[14] $ 2,877  
Ending balance [2],[9],[10],[12],[14]   $ 2,877
Investment, Identifier [Axis]: HIG Orca Acquisition Holdings, Inc., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments   3,241
Fair Value   0
Investment, Identifier [Axis]: HIG Orca Acquisition Holdings, Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments   2,961
Fair Value   $ 0
Investment, Identifier [Axis]: Healthcomp Holding Company, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 1.84% [1],[3],[7] 1.97% [2],[8],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[12] $ 97,515  
Ending balance $ 99,255 [1],[3],[7] $ 97,515 [2],[8],[12]
Investment, Identifier [Axis]: Healthcomp Holding Company, LLC - Preferred Interest    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.02% [1],[6],[7] 0.02% [2],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12] $ 985  
Ending balance $ 985 [1],[6],[7] $ 985 [2],[12]
Investment, Identifier [Axis]: Healthcomp Holding Company, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.20% [1],[5],[7],[15] 0.20% [2],[12],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[16] $ 9,924  
Ending balance $ 10,643 [1],[5],[7],[15] $ 9,924 [2],[12],[16]
Investment, Identifier [Axis]: Helix TS, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.38% [1],[3],[5],[7] 0.90% [2],[8]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8] $ 44,672  
Ending balance $ 20,553 [1],[3],[5],[7] $ 44,672 [2],[8]
Investment, Identifier [Axis]: Helix TS, LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.46% [1],[3],[7] 0.02% [2],[8],[9]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9] $ 973  
Ending balance $ 24,860 [1],[3],[7] $ 973 [2],[8],[9]
Investment, Identifier [Axis]: High Street Buyer, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [3],[4],[5],[7] 1.23%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [3],[4],[5],[7] $ 66,470  
Investment, Identifier [Axis]: High Street Buyer, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[10],[12]   1.06%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[10],[12] 52,366  
Ending balance [2],[8],[10],[12]   $ 52,366
Investment, Identifier [Axis]: High Street Buyer, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[9],[10],[12]   0.23%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[10],[12] 11,146  
Ending balance [2],[8],[9],[10],[12]   $ 11,146
Investment, Identifier [Axis]: High Street Buyer, Inc., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments   9,396
Fair Value   0
Investment, Identifier [Axis]: High Street Buyer, Inc., Delayed Draw Term Loan 1    
Schedule of Investments [Line Items]    
Unfunded commitments 14,941  
Fair Value 0  
Investment, Identifier [Axis]: High Street Buyer, Inc., Delayed Draw Term Loan 2    
Schedule of Investments [Line Items]    
Unfunded commitments 20,953  
Fair Value (210)  
Investment, Identifier [Axis]: High Street Buyer, Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 2,254 2,254
Fair Value $ (45) $ (45)
Investment, Identifier [Axis]: Homecare Software Solutions LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[5],[7] 0.27%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[5],[7] $ 14,495  
Investment, Identifier [Axis]: Homecare Software Solutions LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[7] 0.01%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[7] $ 639  
Investment, Identifier [Axis]: Homecare Software Solutions LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 4,769  
Fair Value 0  
Investment, Identifier [Axis]: Homecare Software Solutions LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 2,092  
Fair Value 0  
Investment, Identifier [Axis]: IG Investments Holdings, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[9],[10],[12]   0.93%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[10],[12] $ 46,011  
Ending balance [2],[8],[9],[10],[12]   $ 46,011
Investment, Identifier [Axis]: IG Investments Holdings, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[7] 0.85%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[7] $ 46,024  
Investment, Identifier [Axis]: IG Investments Holdings, LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[5],[7] 0.01%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[5],[7] $ 442  
Investment, Identifier [Axis]: IG Investments Holdings, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 4,416 3,583
Fair Value $ 0 $ (18)
Investment, Identifier [Axis]: IQN Holding Corp    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[7] 0.09%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[7] $ 4,986  
Investment, Identifier [Axis]: IQN Holding Corp, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 522  
Fair Value $ 0  
Investment, Identifier [Axis]: IRI Group Holdings Inc 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[7] 3.67%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[7] $ 197,857  
Investment, Identifier [Axis]: IRI Group Holdings Inc 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[7] 0.17%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[7] $ 8,998  
Investment, Identifier [Axis]: IRI Group Holdings Inc, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 4,803  
Fair Value 0  
Investment, Identifier [Axis]: ISQ Hawkeye Holdco, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[9],[12]   0.02%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] $ 934  
Ending balance [2],[8],[9],[12]   $ 934
Investment, Identifier [Axis]: ISQ Hawkeye Holdco, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[7] 0.02%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[7] $ 955  
Investment, Identifier [Axis]: ISQ Hawkeye Holdco, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[7] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[7] $ 27  
Investment, Identifier [Axis]: ISQ Hawkeye Holdco, Inc., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 26 51
Fair Value 0 0
Investment, Identifier [Axis]: ISQ Hawkeye Holdco, Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 63 91
Fair Value $ 0 0
Investment, Identifier [Axis]: Icefall Parent Inc, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments   3,042
Fair Value   0
Investment, Identifier [Axis]: Icefall Parent Inc, Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments   31,940
Fair Value   $ 0
Investment, Identifier [Axis]: Icefall Parent, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[4],[7],[13] 0.60%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[4],[7],[13] $ 32,235  
Investment, Identifier [Axis]: Icefall Parent, Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 3,104  
Fair Value $ (31)  
Investment, Identifier [Axis]: Identity Digital Inc 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[7],[13] 5.89%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[7],[13] $ 317,534  
Investment, Identifier [Axis]: Inception Fertility Ventures LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[6],[7] 0.83%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[6],[7] $ 44,575  
Investment, Identifier [Axis]: Inception Fertility Ventures LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 10,488  
Fair Value 0  
Investment, Identifier [Axis]: Inception Fertility Ventures LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 2,098  
Fair Value $ (42)  
Investment, Identifier [Axis]: Infostretch Corporation    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.08% [1],[3],[5],[7] 0.09% [2],[8],[10],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[10],[12] $ 4,408  
Ending balance $ 4,545 [1],[3],[5],[7] $ 4,408 [2],[8],[10],[12]
Investment, Identifier [Axis]: Inova Pharmaceutical, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments   102
Fair Value   0
Investment, Identifier [Axis]: Inova Pharmaceutical, Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments   661
Fair Value   $ 0
Investment, Identifier [Axis]: Inovalon Holdings, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.24% [1],[3],[5],[7] 2.21% [2],[8],[9],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] $ 109,329  
Ending balance $ 12,975 [1],[3],[5],[7] $ 109,329 [2],[8],[9],[12]
Investment, Identifier [Axis]: Inovalon Holdings, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 2.05% [1],[3],[7] 0.25% [2],[8],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[12] $ 12,293  
Ending balance $ 110,766 [1],[3],[7] $ 12,293 [2],[8],[12]
Investment, Identifier [Axis]: Inovalon Holdings, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[5],[7] 0.15%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[5],[7] $ 8,061  
Investment, Identifier [Axis]: Inovalon Holdings, Inc., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments   11,060
Fair Value   $ (138)
Investment, Identifier [Axis]: Integrity Marketing Acquisition, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 2.57% [1],[4],[7],[13] 0.02% [2],[8],[9],[10],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[10],[12] $ 1,098  
Ending balance $ 138,729 [1],[4],[7],[13] $ 1,098 [2],[8],[9],[10],[12]
Investment, Identifier [Axis]: Integrity Marketing Acquisition, LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.03% [1],[3],[5],[7] 0.08% [2],[8],[10],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[10],[12] $ 3,998  
Ending balance $ 1,871 [1],[3],[5],[7] $ 3,998 [2],[8],[10],[12]
Investment, Identifier [Axis]: Integrity Marketing Acquisition, LLC 3    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.12% [1],[3],[4],[5],[7] 2.79% [2],[8],[9],[10],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[10],[12] $ 138,022  
Ending balance $ 6,390 [1],[3],[4],[5],[7] $ 138,022 [2],[8],[9],[10],[12]
Investment, Identifier [Axis]: Integrity Marketing Acquisition, LLC 4    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.07% [1],[3],[5],[7] 0.04% [2],[8],[10],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[10],[12] $ 1,862  
Ending balance 4,018 [1],[3],[5],[7] $ 1,862 [2],[8],[10],[12]
Investment, Identifier [Axis]: Integrity Marketing Acquisition, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 11,844 17,064
Fair Value 0 0
Investment, Identifier [Axis]: Integrity Marketing Acquisition, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 1,381 1,381
Fair Value $ 0 $ (14)
Investment, Identifier [Axis]: Investment Five    
Schedule of Investments [Line Items]    
Interest rate, floor 1.25% 1.25%
Investment, Identifier [Axis]: Investment Four    
Schedule of Investments [Line Items]    
Interest rate, floor 1.00% 1.00%
Investment, Identifier [Axis]: Investment One    
Schedule of Investments [Line Items]    
Interest rate, floor 0.00% 0.00%
Investment, Identifier [Axis]: Investment Seven    
Schedule of Investments [Line Items]    
Interest rate, floor 2.00% 2.00%
Investment, Identifier [Axis]: Investment Six    
Schedule of Investments [Line Items]    
Interest rate, floor 1.50% 1.50%
Investment, Identifier [Axis]: Investment Three    
Schedule of Investments [Line Items]    
Interest rate, floor 0.75% 0.75%
Investment, Identifier [Axis]: Investment Two    
Schedule of Investments [Line Items]    
Interest rate, floor 0.50% 0.50%
Investment, Identifier [Axis]: Iris Buyer, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.52% [1],[4],[7],[13] 0.51% [2],[9],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[12],[14] $ 25,377  
Ending balance 27,875 [1],[4],[7],[13] $ 25,377 [2],[9],[12],[14]
Investment, Identifier [Axis]: Iris Buyer, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 1,249 3,318
Fair Value 0 0
Investment, Identifier [Axis]: Iris Buyer, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 3,850 3,673
Fair Value $ (101) $ (101)
Investment, Identifier [Axis]: Italian Motorway Holdings S.à.r.l    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 1.56% [1],[5],[6],[7],[15] 1.74% [2],[10],[11],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[10],[11],[16] $ 86,349  
Ending balance $ 84,401 [1],[5],[6],[7],[15] $ 86,349 [2],[10],[11],[16]
Investment, Identifier [Axis]: JS Parent Inc    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[7] 0.66%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[7] $ 35,471  
Investment, Identifier [Axis]: JS Parent Inc, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 3,452  
Fair Value $ (17)  
Investment, Identifier [Axis]: JSS Holdings, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[7] 5.31%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[7] $ 286,421  
Investment, Identifier [Axis]: JSS Holdings, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[12]   5.72%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[12] 283,010  
Ending balance [2],[8],[12]   $ 283,010
Investment, Identifier [Axis]: JSS Holdings, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[12]   0.10%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[12] $ 4,888  
Ending balance [2],[8],[12]   $ 4,888
Investment, Identifier [Axis]: Jacuzzi Brands, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.19% [1],[3],[7] 0.21% [2],[8],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[12] $ 10,215  
Ending balance $ 10,385 [1],[3],[7] $ 10,215 [2],[8],[12]
Investment, Identifier [Axis]: Jacuzzi Brands, LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 1.32% [1],[7],[13] 1.42% [2],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[14] $ 70,275  
Ending balance $ 71,443 [1],[7],[13] $ 70,275 [2],[12],[14]
Investment, Identifier [Axis]: Java Buyer, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.07% [1],[3],[7] 0.12% [2],[8],[9],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] $ 5,919  
Ending balance $ 4,016 [1],[3],[7] $ 5,919 [2],[8],[9],[12]
Investment, Identifier [Axis]: Java Buyer, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.03% [1],[3],[4],[5],[7] 0.01% [2],[8],[9],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] $ 353  
Ending balance $ 1,454 [1],[3],[4],[5],[7] $ 353 [2],[8],[9],[12]
Investment, Identifier [Axis]: Java Buyer, Inc. 3    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[7] 0.05%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[7] $ 2,794  
Investment, Identifier [Axis]: Java Buyer, Inc., Delayed Draw Term Loan 1    
Schedule of Investments [Line Items]    
Unfunded commitments 174 930
Fair Value 0 0
Investment, Identifier [Axis]: Java Buyer, Inc., Delayed Draw Term Loan 2    
Schedule of Investments [Line Items]    
Unfunded commitments 2,449 1,276
Fair Value 0 $ 0
Investment, Identifier [Axis]: Java Buyer, Inc., Revolver 1    
Schedule of Investments [Line Items]    
Unfunded commitments 367  
Fair Value (4)  
Investment, Identifier [Axis]: Java Buyer, Inc., Revolver 2    
Schedule of Investments [Line Items]    
Unfunded commitments 735  
Fair Value $ (7)  
Investment, Identifier [Axis]: Jayhawk Buyer, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 2.69% [1],[3],[7],[13] 2.96% [2],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[14] $ 146,766  
Ending balance $ 145,242 [1],[3],[7],[13] $ 146,766 [2],[12],[14]
Investment, Identifier [Axis]: Jayhawk Buyer, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.09% [1],[7],[13] 0.10% [2],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[14] $ 4,950  
Ending balance $ 4,924 [1],[7],[13] $ 4,950 [2],[12],[14]
Investment, Identifier [Axis]: Jayhawk Holdings, LP - A-1 Common Units    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.00% [1],[7] 0.00% [2],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12] $ 172  
Ending balance $ 131 [1],[7] $ 172 [2],[12]
Investment, Identifier [Axis]: Jayhawk Holdings, LP - A-2 Common Units    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.00% [1],[7] 0.00% [2],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12] $ 93  
Ending balance $ 70 [1],[7] $ 93 [2],[12]
Investment, Identifier [Axis]: KEN Bidco Ltd    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[5],[6],[7] 0.21%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[5],[6],[7] $ 11,585  
Investment, Identifier [Axis]: KKR Alberta Midsteam Finance Inc    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2]   0.72%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2] $ 35,421  
Ending balance [2]   $ 35,421
Investment, Identifier [Axis]: KKR Alberta Midsteam Finance, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[6],[7] 0.66%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[6],[7] $ 35,417  
Investment, Identifier [Axis]: KPSKY Acquisition, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.36% [1],[3],[7],[23] 0.40% [2],[8],[12],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[12],[21] $ 20,014  
Ending balance $ 19,408 [1],[3],[7],[23] $ 20,014 [2],[8],[12],[21]
Investment, Identifier [Axis]: KPSKY Acquisition, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.04% [1],[3],[7],[23] 0.05% [2],[8],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[12] $ 2,305  
Ending balance $ 2,235 [1],[3],[7],[23] $ 2,305 [2],[8],[12]
Investment, Identifier [Axis]: Kattegat Project Bidco AB 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[5],[6],[7],[15] 0.05%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[5],[6],[7],[15] $ 2,539  
Investment, Identifier [Axis]: Kattegat Project Bidco AB 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[4],[5],[6],[7],[15] 0.58%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[4],[5],[6],[7],[15] $ 31,049  
Investment, Identifier [Axis]: Kattegat Project Bidco AB, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 7,030  
Fair Value $ (87)  
Investment, Identifier [Axis]: Kaufman Hall & Associates, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.44% [1],[3],[7] 0.49% [2],[8],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[12] $ 24,082  
Ending balance $ 23,959 [1],[3],[7] $ 24,082 [2],[8],[12]
Investment, Identifier [Axis]: Knowledge Pro Buyer, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.13% [1],[3],[4],[7] 0.12% [2],[8],[9],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] $ 6,078  
Ending balance 6,901 [1],[3],[4],[7] $ 6,078 [2],[8],[9],[12]
Investment, Identifier [Axis]: Knowledge Pro Buyer, Inc., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 2,188 2,633
Fair Value 0 0
Investment, Identifier [Axis]: Knowledge Pro Buyer, Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 372 784
Fair Value 0 $ 0
Investment, Identifier [Axis]: Kona Intermediate, LLC, Delayed Draw Term Loan 1    
Schedule of Investments [Line Items]    
Unfunded commitments 306  
Fair Value 0  
Investment, Identifier [Axis]: Kona Intermediate, LLC, Delayed Draw Term Loan 2    
Schedule of Investments [Line Items]    
Unfunded commitments 306  
Fair Value 0  
Investment, Identifier [Axis]: Kona Intermediate, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 122  
Fair Value 0  
Investment, Identifier [Axis]: Kona Intermediate, LLC, Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 1,034  
Fair Value 0  
Investment, Identifier [Axis]: Kwol Acquisition, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[9],[11],[12]   0.13%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[11],[12] $ 6,685  
Ending balance [2],[8],[9],[11],[12]   $ 6,685
Investment, Identifier [Axis]: Kwol Acquisition, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[5],[7] 0.12%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[5],[7] $ 6,587  
Investment, Identifier [Axis]: Kwol Acquisition, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[7] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[7] $ 224  
Investment, Identifier [Axis]: Kwol Acquisition, Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 672 628
Fair Value $ 0 $ 0
Investment, Identifier [Axis]: L&S Mechanical Acquisition, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.23% [1],[3],[5],[7] 0.24% [2],[8],[10],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[10],[12] $ 12,006  
Ending balance $ 12,167 [1],[3],[5],[7] $ 12,006 [2],[8],[10],[12]
Investment, Identifier [Axis]: LD Lower Holdings, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 1.68% [1],[5],[7],[13] 1.83% [2],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[14] $ 90,602  
Ending balance $ 90,499 [1],[5],[7],[13] $ 90,602 [2],[12],[14]
Investment, Identifier [Axis]: LPW Group Holdings, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[4],[5],[7],[13] 0.49%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[4],[5],[7],[13] $ 26,379  
Investment, Identifier [Axis]: LPW Group Holdings, Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 5,373  
Fair Value (81)  
Investment, Identifier [Axis]: Legacy Intermediate, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[12]   0.14%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[12] $ 6,766  
Ending balance [2],[8],[12]   $ 6,766
Investment, Identifier [Axis]: Legacy Intermediate, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[5],[7] 0.12%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[5],[7] $ 6,732  
Investment, Identifier [Axis]: Legacy Intermediate, LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[5],[7],[17] 0.02%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[5],[7],[17] $ 1,297  
Investment, Identifier [Axis]: Lightbox Intermediate, LP    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.03% [1],[5],[7],[15] 0.04% [2],[10],[12],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[10],[12],[16] $ 1,886  
Ending balance $ 1,877 [1],[5],[7],[15] $ 1,886 [2],[10],[12],[16]
Investment, Identifier [Axis]: Lindstrom, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 2.21% [1],[7],[13] 2.40% [2],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[14] $ 119,016  
Ending balance $ 119,434 [1],[7],[13] $ 119,016 [2],[12],[14]
Investment, Identifier [Axis]: Linquest Corp.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.18% [1],[3],[5],[7] 0.19% [2],[8],[10],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[10],[12] $ 9,592  
Ending balance $ 9,688 [1],[3],[5],[7] $ 9,592 [2],[8],[10],[12]
Investment, Identifier [Axis]: Livingston International, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 2.24% [1],[4],[5],[6],[7],[15] 2.44% [2],[8],[11],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[11],[12] $ 120,848  
Ending balance $ 120,988 [1],[4],[5],[6],[7],[15] $ 120,848 [2],[8],[11],[12]
Investment, Identifier [Axis]: Lobos Parent, Inc. - Series A Preferred Shares    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.04% [1],[7] 0.04% [2],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12] $ 1,819  
Ending balance $ 1,900 [1],[7] $ 1,819 [2],[12]
Investment, Identifier [Axis]: Lytx, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 1.57% [1],[7],[13] 1.71% [2],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[14] $ 84,454  
Ending balance $ 84,454 [1],[7],[13] $ 84,454 [2],[12],[14]
Investment, Identifier [Axis]: MAG DS Corp.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 1.44% [1],[13] 1.56% [2],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[14] $ 77,290  
Ending balance $ 77,601 [1],[13] $ 77,290 [2],[14]
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[7] 0.44%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[7] $ 23,642  
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Delayed Draw Term Loan 1    
Schedule of Investments [Line Items]    
Unfunded commitments 4,952  
Fair Value (16)  
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Delayed Draw Term Loan 2    
Schedule of Investments [Line Items]    
Unfunded commitments 8,164  
Fair Value 0  
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 1,078  
Fair Value $ 0  
Investment, Identifier [Axis]: MHE Intermediate Holdings, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.05% [1],[4],[5],[7],[13] 0.05% [2],[9],[10],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[10],[12],[14] $ 2,559  
Ending balance $ 2,461 [1],[4],[5],[7],[13] $ 2,559 [2],[9],[10],[12],[14]
Investment, Identifier [Axis]: MHE Intermediate Holdings, LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.00% [1],[5],[7],[13] 0.01% [2],[10],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[10],[12],[14] $ 249  
Ending balance $ 118 [1],[5],[7],[13] $ 249 [2],[10],[12],[14]
Investment, Identifier [Axis]: MHE Intermediate Holdings, LLC 3    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[5],[7],[13] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[5],[7],[13] $ 118  
Investment, Identifier [Axis]: MHE Intermediate Holdings, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 268 268
Fair Value $ 0 0
Investment, Identifier [Axis]: MPG Parent Holdings LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments   2,679
Fair Value   0
Investment, Identifier [Axis]: MPG Parent Holdings LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments   1,313
Fair Value   0
Investment, Identifier [Axis]: MPG Parent Holdings LLC, Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments   10,763
Fair Value   $ 0
Investment, Identifier [Axis]: MPG Parent Holdings, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[4],[7],[13] 0.20%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[4],[7],[13] $ 10,927  
Investment, Identifier [Axis]: MPG Parent Holdings, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 2,679  
Fair Value 0  
Investment, Identifier [Axis]: MPG Parent Holdings, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 1,339  
Fair Value 0  
Investment, Identifier [Axis]: MRI Software, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[9],[12],[14]   1.02%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[12],[14] $ 50,422  
Ending balance [2],[9],[12],[14]   $ 50,422
Investment, Identifier [Axis]: MRI Software, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[13] 1.06%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[13] $ 57,016  
Investment, Identifier [Axis]: MRI Software, LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[4],[5],[7],[13] 0.13%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[4],[5],[7],[13] $ 7,104  
Investment, Identifier [Axis]: MRI Software, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 32,794 40,238
Fair Value 0 (201)
Investment, Identifier [Axis]: MRI Software, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 7,361  
Fair Value (239)  
Investment, Identifier [Axis]: MRI Software, LLC, Revolver 1    
Schedule of Investments [Line Items]    
Unfunded commitments   1,516
Fair Value   (28)
Investment, Identifier [Axis]: MRI Software, LLC, Revolver 2    
Schedule of Investments [Line Items]    
Unfunded commitments   1,822
Fair Value   (3)
Investment, Identifier [Axis]: MRI Software, LLC, Revolver 3    
Schedule of Investments [Line Items]    
Unfunded commitments   4,024
Fair Value   (40)
Investment, Identifier [Axis]: MRI Software, LLC, Revolver 4    
Schedule of Investments [Line Items]    
Unfunded commitments   3,086
Fair Value   $ (34)
Investment, Identifier [Axis]: Magic Bidco Inc, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 7,858  
Fair Value 0  
Investment, Identifier [Axis]: Magic Bidco Inc, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 3,621  
Fair Value 0  
Investment, Identifier [Axis]: Magic Bidco Inc, Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 19,656  
Fair Value $ 0  
Investment, Identifier [Axis]: Magnesium BorrowerCo, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.10% [1],[3],[4],[5],[7] 0.11% [2],[8],[9],[10],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[10],[12] $ 5,203  
Ending balance $ 5,317 [1],[3],[4],[5],[7] $ 5,203 [2],[8],[9],[10],[12]
Investment, Identifier [Axis]: Magnesium BorrowerCo, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.08% [3],[5],[7] 0.09% [2],[8],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[12] $ 4,345  
Ending balance 4,287 [3],[5],[7] $ 4,345 [2],[8],[12]
Investment, Identifier [Axis]: Magnesium BorrowerCo, Inc., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 328 485
Fair Value $ 0 $ (12)
Investment, Identifier [Axis]: Magneto Components BuyCo, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.61% [1],[3],[4],[7] 0.65% [2],[8],[9],[11],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[11],[12] $ 32,273  
Ending balance 33,160 [1],[3],[4],[7] $ 32,273 [2],[8],[9],[11],[12]
Investment, Identifier [Axis]: Magneto Components BuyCo, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 6,610 6,610
Fair Value (83) 0
Investment, Identifier [Axis]: Magneto Components BuyCo, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 5,508 5,508
Fair Value $ 0 $ (138)
Investment, Identifier [Axis]: Mandolin Technology Holdings, Inc. - Series A Preferred Shares    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.07% [1],[7] 0.07% [2],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12] $ 3,568  
Ending balance $ 3,825 [1],[7] $ 3,568 [2],[12]
Investment, Identifier [Axis]: Mandolin Technology Intermediate Holdings, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.06% [1],[5],[7],[17] 0.07% [2],[10],[12],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[10],[12],[18] $ 3,319  
Ending balance $ 3,310 [1],[5],[7],[17] $ 3,319 [2],[10],[12],[18]
Investment, Identifier [Axis]: Mandolin Technology Intermediate Holdings, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.15% [5],[7],[17] 0.16% [2],[10],[12],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[10],[12],[18] $ 7,887  
Ending balance $ 7,846 [5],[7],[17] $ 7,887 [2],[10],[12],[18]
Investment, Identifier [Axis]: Mandolin Technology Intermediate Holdings, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.13% [5],[7],[17] 0.14% [2],[10],[12],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[10],[12],[18] $ 6,965  
Ending balance $ 6,930 [5],[7],[17] $ 6,965 [2],[10],[12],[18]
Investment, Identifier [Axis]: Mandolin Technology Intermediate Holdings, Inc. 3    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.01% [4],[5],[7],[15] 0.00% [2],[9],[10],[12],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[10],[12],[16] $ 194  
Ending balance 586 [4],[5],[7],[15] $ 194 [2],[9],[10],[12],[16]
Investment, Identifier [Axis]: Mandolin Technology Intermediate Holdings, Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 524 916
Fair Value $ 0 $ 0
Investment, Identifier [Axis]: Marcone Yellowstone Buyer, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.08% [1],[3],[5],[7] 0.09% [2],[8],[10],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[10],[12] $ 4,606  
Ending balance $ 4,558 [1],[3],[5],[7] $ 4,606 [2],[8],[10],[12]
Investment, Identifier [Axis]: Marcone Yellowstone Buyer, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.03% [1],[3],[5],[7] 0.03% [2],[8],[9],[10],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[10],[12] $ 1,471  
Ending balance $ 1,473 [1],[3],[5],[7] $ 1,471 [2],[8],[9],[10],[12]
Investment, Identifier [Axis]: Marcone Yellowstone Buyer, Inc. 3    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.03% [1],[3],[5],[7] 0.03% [2],[8],[10],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[10],[12] $ 1,483  
Ending balance 1,468 [1],[3],[5],[7] $ 1,483 [2],[8],[10],[12]
Investment, Identifier [Axis]: Marcone Yellowstone Buyer, Inc., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments   342
Fair Value   $ (17)
Investment, Identifier [Axis]: Material Holdings, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[9],[10],[12]   0.45%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[10],[12] $ 22,431  
Ending balance [2],[8],[9],[10],[12]   $ 22,431
Investment, Identifier [Axis]: Material Holdings, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[5],[7],[20] 0.38%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[5],[7],[20] $ 20,644  
Investment, Identifier [Axis]: Material Holdings, LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[7],[20] 0.06%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[7],[20] $ 3,037  
Investment, Identifier [Axis]: Material Holdings, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 353 848
Fair Value $ (42) $ 0
Investment, Identifier [Axis]: Material+ Holding Company, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [7],[20] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [7],[20] $ 0  
Investment, Identifier [Axis]: Maverick Acquisition, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.27% [1],[7],[13] 0.28% [2],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[14] $ 13,763  
Ending balance $ 14,525 [1],[7],[13] $ 13,763 [2],[12],[14]
Investment, Identifier [Axis]: Medallia, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[7] 6.79%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[7] $ 366,184  
Investment, Identifier [Axis]: Medallia, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[12]   7.21%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[12] 356,796  
Ending balance [2],[8],[12]   $ 356,796
Investment, Identifier [Axis]: Medallia, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[12]   0.04%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[12] $ 2,094  
Ending balance [2],[8],[12]   $ 2,094
Investment, Identifier [Axis]: Mercury Bidco Globe Limited    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[4],[5],[6],[7],[15] 1.11%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[4],[5],[6],[7],[15] $ 59,980  
Investment, Identifier [Axis]: Mercury Bidco Globe Limited, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 14,933 14,992
Fair Value 0 0
Investment, Identifier [Axis]: Mercury Bidco Globe Limited, Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments   59,287
Fair Value   $ 0
Investment, Identifier [Axis]: Micross Topco, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[12]   0.09%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12] $ 4,699  
Ending balance [2],[12]   $ 4,699
Investment, Identifier [Axis]: Micross Topco, Inc. - Common Equity    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[7] 0.11%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[7] $ 5,786  
Investment, Identifier [Axis]: Mimecast Limited    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[12]   0.01%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12] $ 674  
Ending balance [2],[12]   $ 674
Investment, Identifier [Axis]: Mimecast Limited - LP Interests    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[7] 0.01%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[7] $ 708  
Investment, Identifier [Axis]: Minotaur Acquisition, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[10],[16]   0.04%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[10],[16] $ 1,967  
Ending balance [2],[10],[16]   $ 1,967
Investment, Identifier [Axis]: Mode Holdings, L.P. - Class A-2 Common Units    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.14% [1],[7] 0.20% [2],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12] $ 9,822  
Ending balance $ 7,627 [1],[7] $ 9,822 [2],[12]
Investment, Identifier [Axis]: Mode Purchaser, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 2.58% [1],[3],[6],[7] 2.89% [2],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[14] $ 143,110  
Ending balance $ 139,345 [1],[3],[6],[7] $ 143,110 [2],[12],[14]
Investment, Identifier [Axis]: Mode Purchaser, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.07% [1],[7],[13] 0.08% [2],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[14] $ 4,085  
Ending balance $ 3,978 [1],[7],[13] $ 4,085 [2],[12],[14]
Investment, Identifier [Axis]: Monk Holding Co. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.09% [1],[3],[7],[23] 0.10% [2],[8],[12],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[12],[21] $ 4,804  
Ending balance $ 4,779 [1],[3],[7],[23] $ 4,804 [2],[8],[12],[21]
Investment, Identifier [Axis]: Monk Holding Co. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.01% [1],[3],[4],[5],[7] 0.00% [2],[8],[9],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] $ 175  
Ending balance 273 [1],[3],[4],[5],[7] $ 175 [2],[8],[9],[12]
Investment, Identifier [Axis]: Monk Holding Co., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 917 830
Fair Value 0 $ 0
Investment, Identifier [Axis]: Monterey Financing, S.A.R.L 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[10],[11],[12],[16]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[10],[11],[12],[16] 206  
Ending balance [2],[10],[11],[12],[16]   $ 206
Investment, Identifier [Axis]: Monterey Financing, S.A.R.L 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[10],[11],[12],[16]   0.01%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[10],[11],[12],[16] 721  
Ending balance [2],[10],[11],[12],[16]   $ 721
Investment, Identifier [Axis]: Monterey Financing, S.A.R.L 3    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[9],[10],[11],[12],[16]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[10],[11],[12],[16] 220  
Ending balance [2],[9],[10],[11],[12],[16]   $ 220
Investment, Identifier [Axis]: Monterey Financing, S.A.R.L 4    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[10],[11],[12],[16]   0.01%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[10],[11],[12],[16] 708  
Ending balance [2],[10],[11],[12],[16]   $ 708
Investment, Identifier [Axis]: Monterey Financing, S.A.R.L 5    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[10],[11],[12],[18]   0.01%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[10],[11],[12],[18] 503  
Ending balance [2],[10],[11],[12],[18]   $ 503
Investment, Identifier [Axis]: Monterey Financing, S.A.R.L, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 283 283
Fair Value $ 0 $ 0
Investment, Identifier [Axis]: Monterey Financing, S.à r.l. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[5],[6],[7],[15] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[5],[6],[7],[15] $ 196  
Investment, Identifier [Axis]: Monterey Financing, S.à r.l. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[5],[6],[7],[15] 0.02%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[5],[6],[7],[15] $ 1,008  
Investment, Identifier [Axis]: Monterey Financing, S.à r.l. 3    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[5],[6],[7],[17] 0.01%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[5],[6],[7],[17] $ 687  
Investment, Identifier [Axis]: Monterey Financing, S.à r.l. 4    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[4],[5],[6],[7],[17] 0.01%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[4],[5],[6],[7],[17] $ 479  
Investment, Identifier [Axis]: More Cowbell II, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.15% [1],[3],[4],[7] 0.16% [2],[8],[9],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] $ 7,866  
Ending balance $ 7,966 [1],[3],[4],[7] $ 7,866 [2],[8],[9],[12]
Investment, Identifier [Axis]: More Cowbell II, LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.01% [1],[3],[4],[7] 0.00% [2],[8],[9],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] $ 192  
Ending balance 488 [1],[3],[4],[7] $ 192 [2],[8],[9],[12]
Investment, Identifier [Axis]: More Cowbell II, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 916 871
Fair Value (11) (11)
Investment, Identifier [Axis]: More Cowbell II, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 645 968
Fair Value $ 0 $ 0
Investment, Identifier [Axis]: NAVEX TopCo, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 1.13% [1],[3],[4],[7] 1.21% [2],[8],[9],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] $ 59,969  
Ending balance 61,150 [1],[3],[4],[7] $ 59,969 [2],[8],[9],[12]
Investment, Identifier [Axis]: NAVEX TopCo, Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 5,394 5,394
Fair Value $ 0 $ (108)
Investment, Identifier [Axis]: NC Ocala Co-Invest Beta, L.P. - LP Interest    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.06% [1],[7] 0.06% [2],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12] $ 3,054  
Ending balance $ 3,368 [1],[7] $ 3,054 [2],[12]
Investment, Identifier [Axis]: NDC Acquisition Corp.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[4],[7],[13] 0.25%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[4],[7],[13] $ 13,354  
Investment, Identifier [Axis]: NDC Acquisition Corp. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[12],[14]   0.27%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[14] 13,288  
Ending balance [2],[12],[14]   $ 13,288
Investment, Identifier [Axis]: NDC Acquisition Corp. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[9],[12],[14]   0.01%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[12],[14] 480  
Ending balance [2],[9],[12],[14]   $ 480
Investment, Identifier [Axis]: NDC Acquisition Corp., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 3,425 2,911
Fair Value $ 0 $ 0
Investment, Identifier [Axis]: NMC Crimson Holdings, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 1.32% [1],[3],[7] 1.44% [2],[8],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[12] $ 71,173  
Ending balance $ 71,173 [1],[3],[7] $ 71,173 [2],[8],[12]
Investment, Identifier [Axis]: NMC Crimson Holdings, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.27% [1],[3],[5],[7] 0.30% [2],[8],[9],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] $ 14,719  
Ending balance $ 14,758 [1],[3],[5],[7] $ 14,719 [2],[8],[9],[12]
Investment, Identifier [Axis]: NMC Crimson Holdings, Inc., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments   2,617
Fair Value   $ 0
Investment, Identifier [Axis]: Navigator Acquiror, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 4.09% [1],[4],[7],[17] 4.42% [2],[9],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[12] $ 218,854  
Ending balance 220,613 [1],[4],[7],[17] $ 218,854 [2],[9],[12]
Investment, Identifier [Axis]: Navigator Acquiror, Inc., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 16,497 24,746
Fair Value $ 0 $ 0
Investment, Identifier [Axis]: Ncp Helix Holdings, LLC. - Preferred Shares    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.01% [1],[7] 0.01% [2],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12] $ 536  
Ending balance $ 465 [1],[7] $ 536 [2],[12]
Investment, Identifier [Axis]: Neptune BidCo    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[4],[5],[6],[7],[15] 0.11%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[4],[5],[6],[7],[15] $ 5,863  
Investment, Identifier [Axis]: Neptune BidCo, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 3,008  
Fair Value $ 0  
Investment, Identifier [Axis]: Neptune Holdings, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.13% [1],[4],[7],[13] 0.14% [2],[9],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[12],[14] $ 6,841  
Ending balance 6,965 [1],[4],[7],[13] $ 6,841 [2],[9],[12],[14]
Investment, Identifier [Axis]: Neptune Holdings, Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 933 933
Fair Value $ 0 $ (19)
Investment, Identifier [Axis]: Nintex Topco Limited    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.61% [1],[3],[6],[7] 0.66% [2],[8],[11],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[11],[12] $ 32,511  
Ending balance $ 32,928 [1],[3],[6],[7] $ 32,511 [2],[8],[11],[12]
Investment, Identifier [Axis]: Noble Midco 3 Ltd    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[6],[7] 0.31%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[6],[7] $ 16,579  
Investment, Identifier [Axis]: Noble Midco 3 Ltd, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 3,875  
Fair Value 0  
Investment, Identifier [Axis]: Noble Midco 3 Ltd, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 2,583  
Fair Value $ (26)  
Investment, Identifier [Axis]: OHCP V TC COI, LP. - LP Interest    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.13% [1],[7] 0.12% [2],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12] $ 6,055  
Ending balance $ 7,210 [1],[7] $ 6,055 [2],[12]
Investment, Identifier [Axis]: Odyssey Holding Company, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.25% [1],[7],[13],[23] 0.34% [2],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[14] $ 17,037  
Ending balance $ 13,403 [1],[7],[13],[23] $ 17,037 [2],[12],[14]
Investment, Identifier [Axis]: Odyssey Holding Company, LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.10% [1],[5],[7],[13] 0.03% [2],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[14] $ 1,635  
Ending balance $ 5,270 [1],[5],[7],[13] $ 1,635 [2],[12],[14]
Investment, Identifier [Axis]: Onex Baltimore Buyer, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.20% [1],[3],[7],[23] 0.22% [2],[8],[12],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[12],[21] $ 10,804  
Ending balance $ 10,804 [1],[3],[7],[23] $ 10,804 [2],[8],[12],[21]
Investment, Identifier [Axis]: Onex Baltimore Buyer, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.18% [1],[3],[4],[5],[7],[23] 0.18% [2],[8],[9],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] $ 9,091  
Ending balance 9,561 [1],[3],[4],[5],[7],[23] $ 9,091 [2],[8],[9],[12]
Investment, Identifier [Axis]: Onex Baltimore Buyer, Inc., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 4,472  
Fair Value 0  
Investment, Identifier [Axis]: Onex Baltimore Buyer, Inc., Delayed Draw Term Loan 1    
Schedule of Investments [Line Items]    
Unfunded commitments   177
Fair Value   0
Investment, Identifier [Axis]: Onex Baltimore Buyer, Inc., Delayed Draw Term Loan 2    
Schedule of Investments [Line Items]    
Unfunded commitments   4,729
Fair Value   $ 0
Investment, Identifier [Axis]: Oranje Holdco Inc    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[9],[10],[12],[14]   0.04%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[10],[12],[14] $ 2,000  
Ending balance [2],[9],[10],[12],[14]   $ 2,000
Investment, Identifier [Axis]: Oranje Holdco Inc 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[4],[5],[7],[13] 0.04%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[4],[5],[7],[13] $ 2,000  
Investment, Identifier [Axis]: Oranje Holdco Inc 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[5],[7],[13] 0.63%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[5],[7],[13] $ 33,969  
Investment, Identifier [Axis]: Oranje Holdco Inc, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 250 250
Fair Value $ 0 $ 0
Investment, Identifier [Axis]: Other Cash and Cash Equivalents    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 5.40% [1] 2.72% [2]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2] $ 134,896  
Ending balance $ 291,292 [1] $ 134,896 [2]
Investment, Identifier [Axis]: Oxford Global Resources Inc 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[4],[5],[7],[13] 0.35%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[4],[5],[7],[13] $ 18,994  
Investment, Identifier [Axis]: Oxford Global Resources Inc 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[5],[7],[13] 0.05%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[5],[7],[13] $ 2,924  
Investment, Identifier [Axis]: Oxford Global Resources Inc 3    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[5],[7],[17] 0.04%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[5],[7],[17] $ 2,228  
Investment, Identifier [Axis]: Oxford Global Resources Inc, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 2,961  
Fair Value $ 0  
Investment, Identifier [Axis]: PDI TA Holdings, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[6],[7] 0.61%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[6],[7] $ 33,034  
Investment, Identifier [Axis]: PDI TA Holdings, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[6],[7] 0.07%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[6],[7] $ 3,886  
Investment, Identifier [Axis]: PDI TA Holdings, Inc., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 8,687  
Fair Value 0  
Investment, Identifier [Axis]: PDI TA Holdings, Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 3,800  
Fair Value $ (48)  
Investment, Identifier [Axis]: PGIS Intermediate Holdings, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.08% [1],[3],[4],[5],[7] 0.09% [2],[8],[10],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[10],[12] $ 4,522  
Ending balance $ 4,558 [1],[3],[4],[5],[7] $ 4,522 [2],[8],[10],[12]
Investment, Identifier [Axis]: PGIS Intermediate Holdings, LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.02% [1],[3],[4],[5],[7] 0.01% [2],[8],[9],[10],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[10],[12] $ 249  
Ending balance 1,269 [1],[3],[4],[5],[7] $ 249 [2],[8],[9],[10],[12]
Investment, Identifier [Axis]: PGIS Intermediate Holdings, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 2,990 4,007
Fair Value 0 0
Investment, Identifier [Axis]: PGIS Intermediate Holdings, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 469 469
Fair Value $ (9) $ (9)
Investment, Identifier [Axis]: PPT Holdings III, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[5],[7],[15] 0.03%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[5],[7],[15] $ 1,635  
Investment, Identifier [Axis]: PPV Intermediate Holdings, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[10],[12]   0.04%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[10],[12] $ 1,971  
Ending balance [2],[8],[10],[12]   $ 1,971
Investment, Identifier [Axis]: PPV Intermediate Holdings, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[7] 0.04%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[7] $ 1,987  
Investment, Identifier [Axis]: PPV Intermediate Holdings, LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[7] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[7] $ 39  
Investment, Identifier [Axis]: PPV Intermediate Holdings, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 39 78
Fair Value 0 0
Investment, Identifier [Axis]: PPV Intermediate Holdings, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 159 159
Fair Value $ 0 $ (1)
Investment, Identifier [Axis]: PT Intermediate Holdings III LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[7],[13] 1.12%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[7],[13] $ 60,219  
Investment, Identifier [Axis]: PT Intermediate Holdings III LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 4,855  
Fair Value $ (6)  
Investment, Identifier [Axis]: Paisley Bidco Ltd 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[4],[5],[6],[7],[15] 0.12%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[4],[5],[6],[7],[15] $ 6,409  
Investment, Identifier [Axis]: Paisley Bidco Ltd 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[5],[6],[7],[15] 0.07%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[5],[6],[7],[15] $ 3,608  
Investment, Identifier [Axis]: Paisley Bidco Ltd, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 4,689  
Fair Value $ (71)  
Investment, Identifier [Axis]: Park Place Technologies, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[7] 2.18%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[7] $ 117,349  
Investment, Identifier [Axis]: Park Place Technologies, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 18,198  
Fair Value (91)  
Investment, Identifier [Axis]: Park Place Technologies, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 12,101  
Fair Value 0  
Investment, Identifier [Axis]: Pavion Corp.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[9],[11],[12]   1.62%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[11],[12] $ 80,138  
Ending balance [2],[8],[9],[11],[12]   $ 80,138
Investment, Identifier [Axis]: Pavion Corp. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[6],[7] 1.43%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[6],[7] $ 77,180  
Investment, Identifier [Axis]: Pavion Corp. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[6],[7] 0.29%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[6],[7] $ 15,484  
Investment, Identifier [Axis]: Pavion Corp., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 2,559 18,279
Fair Value $ 0 (183)
Investment, Identifier [Axis]: Pavion Corp., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments   9,565
Fair Value   $ 0
Investment, Identifier [Axis]: Petrus Buyer Inc    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.03% [1],[3],[4],[5],[7] 0.04% [2],[8],[9],[10],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[10],[12] $ 1,882  
Ending balance 1,872 [1],[3],[4],[5],[7] $ 1,882 [2],[8],[9],[10],[12]
Investment, Identifier [Axis]: Petrus Buyer Inc, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 595 595
Fair Value (9) (9)
Investment, Identifier [Axis]: Petrus Buyer Inc, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 272 272
Fair Value $ 0 $ 0
Investment, Identifier [Axis]: Phoenix 1 Buyer Corp.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.48% [1],[4],[7],[15] 0.52% [2],[9],[12],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[12],[16] $ 25,573  
Ending balance 25,818 [1],[4],[7],[15] $ 25,573 [2],[9],[12],[16]
Investment, Identifier [Axis]: Phoenix 1 Buyer Corp., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 5,009 5,009
Fair Value $ 0 $ (50)
Investment, Identifier [Axis]: Point Broadband Acquisition, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[4],[7],[13] 2.29%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[4],[7],[13] $ 123,684  
Investment, Identifier [Axis]: Point Broadband Acquisition, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[12],[14]   1.73%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[14] 85,486  
Ending balance [2],[12],[14]   $ 85,486
Investment, Identifier [Axis]: Point Broadband Acquisition, LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[12],[14]   0.79%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[14] 38,969  
Ending balance [2],[12],[14]   $ 38,969
Investment, Identifier [Axis]: Point Broadband Acquisition, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 36,397  
Fair Value $ (455)  
Investment, Identifier [Axis]: Point Broadband Holdings, LLC - Class A Units    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.12% [1],[7] 0.14% [2],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12] $ 7,049  
Ending balance $ 6,241 [1],[7] $ 7,049 [2],[12]
Investment, Identifier [Axis]: Point Broadband Holdings, LLC - Class Additional A Units    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.02% [1],[7] 0.03% [2],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12] $ 1,515  
Ending balance $ 1,341 [1],[7] $ 1,515 [2],[12]
Investment, Identifier [Axis]: Point Broadband Holdings, LLC - Class Additional B Units    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.01% [1],[7] 0.01% [2],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12] $ 536  
Ending balance $ 284 [1],[7] $ 536 [2],[12]
Investment, Identifier [Axis]: Point Broadband Holdings, LLC - Class B Units    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.02% [1],[7] 0.05% [2],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12] $ 2,492  
Ending balance $ 1,322 [1],[7] $ 2,492 [2],[12]
Investment, Identifier [Axis]: Porcelain Acquisition Corp.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.97% [1],[7],[13] 1.06% [2],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[14] $ 52,267  
Ending balance $ 52,422 [1],[7],[13] $ 52,267 [2],[14]
Investment, Identifier [Axis]: Profile Products, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.13% [1],[3],[7] 0.02% [2]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2] $ 1,189  
Ending balance $ 7,091 [1],[3],[7] $ 1,189 [2]
Investment, Identifier [Axis]: Profile Products, LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.00% [1],[3],[4],[5],[7] 0.12% [2]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2] $ 5,857  
Ending balance $ 122 [1],[3],[4],[5],[7] $ 5,857 [2]
Investment, Identifier [Axis]: Profile Products, LLC 3    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[7] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[7] $ 12  
Investment, Identifier [Axis]: Profile Products, LLC, Revolver 1    
Schedule of Investments [Line Items]    
Unfunded commitments 353 520
Fair Value 0 (17)
Investment, Identifier [Axis]: Profile Products, LLC, Revolver 2    
Schedule of Investments [Line Items]    
Unfunded commitments 386 353
Fair Value $ 0 $ 0
Investment, Identifier [Axis]: Progress Residential PM Holdings, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 1.26% [1],[3],[4],[7] 1.37% [2],[8],[9],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] $ 67,900  
Ending balance $ 67,900 [1],[3],[4],[7] $ 67,900 [2],[8],[9],[12]
Investment, Identifier [Axis]: Progress Residential PM Holdings, LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.02% [1],[3],[4],[5],[7] 0.02% [2],[8],[9],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] $ 833  
Ending balance 833 [1],[3],[4],[5],[7] $ 833 [2],[8],[9],[12]
Investment, Identifier [Axis]: Progress Residential PM Holdings, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments   16,623
Fair Value   0
Investment, Identifier [Axis]: Progress Residential PM Holdings, LLC, Delayed Draw Term Loan 1    
Schedule of Investments [Line Items]    
Unfunded commitments 16,623 333
Fair Value 0 $ 0
Investment, Identifier [Axis]: Progress Residential PM Holdings, LLC, Delayed Draw Term Loan 2    
Schedule of Investments [Line Items]    
Unfunded commitments 333  
Fair Value $ 0  
Investment, Identifier [Axis]: Project Ruby Ultimate Parent Corp.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.15% [1],[3] 0.17% [2],[8]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8] $ 8,201  
Ending balance $ 8,354 [1],[3] $ 8,201 [2],[8]
Investment, Identifier [Axis]: Pye-Barker Fire & Safety LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[5],[7] 0.08%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[5],[7] $ 4,461  
Investment, Identifier [Axis]: Pye-Barker Fire & Safety LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[7] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[7] $ 5,274  
Investment, Identifier [Axis]: Pye-Barker Fire & Safety LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 8,516 18,278
Fair Value 0 $ (183)
Investment, Identifier [Axis]: Quality Distribution LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[9],[12],[14]   0.01%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[12],[14] 681  
Ending balance [2],[9],[12],[14]   $ 681
Investment, Identifier [Axis]: Quality Distribution LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[9],[10],[12],[14]   0.37%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[10],[12],[14] $ 18,220  
Ending balance [2],[9],[10],[12],[14]   $ 18,220
Investment, Identifier [Axis]: Quality Distribution LLC, Delayed Draw Term Loan 1    
Schedule of Investments [Line Items]    
Unfunded commitments   25
Fair Value   0
Investment, Identifier [Axis]: Quality Distribution LLC, Delayed Draw Term Loan 2    
Schedule of Investments [Line Items]    
Unfunded commitments   1,931
Fair Value   (10)
Investment, Identifier [Axis]: Quality Distribution LLC, Revolver 1    
Schedule of Investments [Line Items]    
Unfunded commitments   94
Fair Value   (3)
Investment, Identifier [Axis]: Quality Distribution LLC, Revolver 2    
Schedule of Investments [Line Items]    
Unfunded commitments   3,000
Fair Value   $ (135)
Investment, Identifier [Axis]: Qualus Power Services Corp. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.61% [1],[7],[13] 0.65% [2],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[14] $ 31,962  
Ending balance $ 32,781 [1],[7],[13] $ 31,962 [2],[12],[14]
Investment, Identifier [Axis]: Qualus Power Services Corp. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.62% [1],[4],[7],[13] 0.64% [2],[9],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[12],[14] $ 31,515  
Ending balance 33,660 [1],[4],[7],[13] $ 31,515 [2],[9],[12],[14]
Investment, Identifier [Axis]: Qualus Power Services Corp., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments   3,737
Fair Value   $ 0
Investment, Identifier [Axis]: Qualus Power Services Corp., Delayed Draw Term Loan 1    
Schedule of Investments [Line Items]    
Unfunded commitments 934  
Fair Value 0  
Investment, Identifier [Axis]: Qualus Power Services Corp., Delayed Draw Term Loan 2    
Schedule of Investments [Line Items]    
Unfunded commitments 83,209  
Fair Value $ 0  
Investment, Identifier [Axis]: RFS Opco LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[7],[17] 0.17%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[7],[17] $ 9,429  
Investment, Identifier [Axis]: RPBLS Midco, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[10],[12]   0.15%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[10],[12] 7,388  
Ending balance [2],[8],[10],[12]   $ 7,388
Investment, Identifier [Axis]: RPBLS Midco, LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[10],[12],[18]   0.04%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[10],[12],[18] $ 1,961  
Ending balance [2],[10],[12],[18]   $ 1,961
Investment, Identifier [Axis]: RWL Holdings, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.52% [1],[5],[7],[13] 0.58% [2],[8],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[12] $ 28,656  
Ending balance $ 28,133 [1],[5],[7],[13] $ 28,656 [2],[8],[12]
Investment, Identifier [Axis]: Rally Buyer, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.02% [1],[3],[5],[7] 0.02% [2],[8],[9],[10],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[10],[12] $ 824  
Ending balance $ 869 [1],[3],[5],[7] $ 824 [2],[8],[9],[10],[12]
Investment, Identifier [Axis]: Rally Buyer, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.00% [1],[3],[4],[5],[7] 0.00% [2],[8],[9],[10],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[10],[12] $ 42  
Ending balance 42 [1],[3],[4],[5],[7] $ 42 [2],[8],[9],[10],[12]
Investment, Identifier [Axis]: Rally Buyer, Inc., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments   75
Fair Value   0
Investment, Identifier [Axis]: Rally Buyer, Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 66 66
Fair Value $ 0 $ 0
Investment, Identifier [Axis]: Razor Holdco, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.68% [1],[3],[7] 0.74% [2],[8],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[12] $ 36,693  
Ending balance $ 36,781 [1],[3],[7] $ 36,693 [2],[8],[12]
Investment, Identifier [Axis]: Recorded Future Inc    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[7] 0.42%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[7] $ 22,566  
Investment, Identifier [Axis]: Recorded Future Inc, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 5,304  
Fair Value (53)  
Investment, Identifier [Axis]: Recorded Future Inc, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 2,486  
Fair Value $ (25)  
Investment, Identifier [Axis]: Red Fox CD Acquisition Corp    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[7],[13] 1.45%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[7],[13] $ 78,074  
Investment, Identifier [Axis]: Red River Technology, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 1.47% [1],[7],[13] 1.61% [2],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[14] $ 79,967  
Ending balance 79,558 [1],[7],[13] $ 79,967 [2],[12],[14]
Investment, Identifier [Axis]: Redwood Services Group, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[9],[12]   0.09%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] $ 4,430  
Ending balance [2],[8],[9],[12]   $ 4,430
Investment, Identifier [Axis]: Redwood Services Group, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[5],[7] 0.09%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[5],[7] $ 4,665  
Investment, Identifier [Axis]: Redwood Services Group, LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[7] 0.09%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[7] $ 4,730  
Investment, Identifier [Axis]: Redwood Services Group, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 73,181  
Fair Value $ 0  
Investment, Identifier [Axis]: Redwood Services Group, LLC, Delayed Draw Term Loan 1    
Schedule of Investments [Line Items]    
Unfunded commitments   53
Fair Value   0
Investment, Identifier [Axis]: Redwood Services Group, LLC, Delayed Draw Term Loan 2    
Schedule of Investments [Line Items]    
Unfunded commitments   139
Fair Value   $ 0
Investment, Identifier [Axis]: Relativity ODA, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.36% [1] 0.43% [2],[9],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[12],[14] $ 21,087  
Ending balance 19,337 [1] $ 21,087 [2],[9],[12],[14]
Investment, Identifier [Axis]: Relativity ODA, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 2,966 3,292
Fair Value $ 0 $ (49)
Investment, Identifier [Axis]: RoadOne Inc    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.02% [1],[3],[7] 0.02% [2],[9],[10],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[10],[12],[14] $ 1,075  
Ending balance 1,066 [1],[3],[7] $ 1,075 [2],[9],[10],[12],[14]
Investment, Identifier [Axis]: RoadOne Inc, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments   163
Fair Value   0
Investment, Identifier [Axis]: RoadOne Inc, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 275 275
Fair Value $ 0 $ 0
Investment, Identifier [Axis]: Roadsafe Holdings, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.60% [1],[7],[13] 0.57% [2],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[14] $ 28,339  
Ending balance $ 32,319 [1],[7],[13] $ 28,339 [2],[14]
Investment, Identifier [Axis]: Roadsafe Holdings, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.37% [1],[5],[7],[13] 0.40% [2],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[14] $ 19,820  
Ending balance $ 19,872 [1],[5],[7],[13] $ 19,820 [2],[14]
Investment, Identifier [Axis]: Roadsafe Holdings, Inc. 3    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.08% [1],[5],[7],[13] 0.08% [2],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[14] $ 4,040  
Ending balance $ 4,055 [1],[5],[7],[13] $ 4,040 [2],[14]
Investment, Identifier [Axis]: Rocky MRA Acquisition Corp    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[5],[7],[17] 0.17%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[5],[7],[17] $ 9,301  
Investment, Identifier [Axis]: S&P Global Engineering Solutions    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[9],[10],[12],[14]   0.03%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[10],[12],[14] $ 1,596  
Ending balance [2],[9],[10],[12],[14]   $ 1,596
Investment, Identifier [Axis]: S&P Global Engineering Solutions, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments   249
Fair Value   $ 0
Investment, Identifier [Axis]: SEKO Global Logistics Network, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.09% [1],[5],[7],[13] 0.11% [2],[10],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[10],[12],[14] $ 5,365  
Ending balance $ 4,625 [1],[5],[7],[13] $ 5,365 [2],[10],[12],[14]
Investment, Identifier [Axis]: SEKO Global Logistics Network, LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.00% [1],[4],[5],[7],[13] 0.00% [2],[9],[10],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[10],[12],[14] $ 167  
Ending balance $ 201 [1],[4],[5],[7],[13] $ 167 [2],[9],[10],[12],[14]
Investment, Identifier [Axis]: SEKO Global Logistics Network, LLC 3    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.03% [1],[5],[7],[13] 0.02% [2],[10],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[10],[12],[14] $ 775  
Ending balance 1,443 [1],[5],[7],[13] $ 775 [2],[10],[12],[14]
Investment, Identifier [Axis]: SEKO Global Logistics Network, LLC 4    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[10],[12],[14]   0.04%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[10],[12],[14] 1,985  
Ending balance [2],[10],[12],[14]   $ 1,985
Investment, Identifier [Axis]: SEKO Global Logistics Network, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 252 432
Fair Value $ 0 $ 0
Investment, Identifier [Axis]: SG Acquisition Inc    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[7] 2.53%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[7] $ 136,345  
Investment, Identifier [Axis]: SG Acquisition Inc, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 8,301  
Fair Value 0  
Investment, Identifier [Axis]: SG Acquisition, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[12],[18]   2.09%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[18] $ 103,662  
Ending balance [2],[12],[18]   $ 103,662
Investment, Identifier [Axis]: STV Group, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[7] 0.45%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[7] $ 24,165  
Investment, Identifier [Axis]: STV Group, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[7] 0.01%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[7] $ 324  
Investment, Identifier [Axis]: STV Group, Inc., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 6,976  
Fair Value (70)  
Investment, Identifier [Axis]: STV Group, Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 4,535  
Fair Value $ 0  
Investment, Identifier [Axis]: Safety Borrower Holdings LP 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.10% [1],[5],[7],[13] 0.10% [2],[10],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[10],[14] $ 5,032  
Ending balance $ 5,297 [1],[5],[7],[13] $ 5,032 [2],[10],[14]
Investment, Identifier [Axis]: Safety Borrower Holdings LP 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.00% [1],[4],[5],[7],[13] 0.01% [2],[9],[10],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[10],[14] $ 276  
Ending balance 127 [1],[4],[5],[7],[13] $ 276 [2],[9],[10],[14]
Investment, Identifier [Axis]: Safety Borrower Holdings LP, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 242 93
Fair Value $ 0 $ 0
Investment, Identifier [Axis]: Sam Holding Co, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.69% [1],[7],[13] 0.75% [2],[9],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[14] $ 37,206  
Ending balance $ 36,955 [1],[7],[13] $ 37,206 [2],[9],[14]
Investment, Identifier [Axis]: Sam Holding Co, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.51% [1],[7],[13] 0.23% [2],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[14] $ 11,378  
Ending balance $ 27,336 [1],[7],[13] $ 11,378 [2],[14]
Investment, Identifier [Axis]: Sam Holding Co, Inc. 3    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.09% [1],[4],[5],[7],[13] 0.32% [2],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[14] $ 15,761  
Ending balance $ 4,836 [1],[4],[5],[7],[13] $ 15,761 [2],[14]
Investment, Identifier [Axis]: Sam Holding Co, Inc. 4    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[4],[5],[7],[13] 0.04%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[4],[5],[7],[13] $ 2,300  
Investment, Identifier [Axis]: Sam Holding Co, Inc., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 5,050 9,300
Fair Value 0 0
Investment, Identifier [Axis]: Sam Holding Co, Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 3,700 6,000
Fair Value $ 0 $ (75)
Investment, Identifier [Axis]: Scorpio BidCo SAS    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[4],[5],[6],[7],[15] 0.44%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[4],[5],[6],[7],[15] $ 23,861  
Investment, Identifier [Axis]: Scorpio BidCo SAS, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 4,386  
Fair Value $ (95)  
Investment, Identifier [Axis]: SelectQuote, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 1.21% [1],[3],[7] 1.34% [2],[8],[10],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[10],[12] $ 66,538  
Ending balance $ 65,453 [1],[3],[7] $ 66,538 [2],[8],[10],[12]
Investment, Identifier [Axis]: Shelf Bidco Ltd    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.09% [1],[3],[5],[6],[7],[23] 0.10% [2],[8],[10],[11],[12],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[10],[11],[12],[21] $ 5,053  
Ending balance $ 5,053 [1],[3],[5],[6],[7],[23] $ 5,053 [2],[8],[10],[11],[12],[21]
Investment, Identifier [Axis]: Shelf Holdco Ltd Common Equity    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.00% [1],[6],[7] 0.00% [2],[11],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[11],[12] $ 88  
Ending balance 160 [1],[6],[7] $ 88 [2],[11],[12]
Investment, Identifier [Axis]: Sherlock Buyer Corp.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[9],[12]   0.17%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] 8,267  
Ending balance [2],[8],[9],[12]   $ 8,267
Investment, Identifier [Axis]: Sherlock Buyer Corp., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments   2,794
Fair Value   (28)
Investment, Identifier [Axis]: Sherlock Buyer Corp., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments   1,111
Fair Value   $ (22)
Investment, Identifier [Axis]: Shoals Holdings, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[12],[14]   1.24%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[14] 61,350  
Ending balance [2],[12],[14]   $ 61,350
Investment, Identifier [Axis]: Skopima Consilio Parent LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 4,200  
Fair Value (27)  
Investment, Identifier [Axis]: Smile Doctors, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[9],[12]   0.21%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] $ 10,571  
Ending balance [2],[8],[9],[12]   $ 10,571
Investment, Identifier [Axis]: Smile Doctors, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[7] 0.20%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[7] $ 10,555  
Investment, Identifier [Axis]: Smile Doctors, LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[7] 0.02%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[7] $ 957  
Investment, Identifier [Axis]: Smile Doctors, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 1,609 2,607
Fair Value 0 (39)
Investment, Identifier [Axis]: Smile Doctors, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 1,233 1,233
Fair Value $ (31) $ (31)
Investment, Identifier [Axis]: Snoopy Bidco, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 6.03% [1],[3],[7] 6.11% [2],[8],[9],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] $ 302,719  
Ending balance $ 325,239 [1],[3],[7] $ 302,719 [2],[8],[9],[12]
Investment, Identifier [Axis]: Snoopy Bidco, Inc., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments   15,786
Fair Value   $ (237)
Investment, Identifier [Axis]: SpecialtyCare, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.22% [1],[5],[7],[13] 0.23% [2],[9],[10],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[10],[12],[14] $ 11,592  
Ending balance $ 11,681 [1],[5],[7],[13] $ 11,592 [2],[9],[10],[12],[14]
Investment, Identifier [Axis]: SpecialtyCare, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.01% [1],[5],[7],[13] 0.00% [2],[9],[10],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[10],[12] $ 146  
Ending balance $ 434 [1],[5],[7],[13] $ 146 [2],[9],[10],[12]
Investment, Identifier [Axis]: SpecialtyCare, Inc. 3    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[4],[5],[7],[15] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[4],[5],[7],[15] $ 101  
Investment, Identifier [Axis]: SpecialtyCare, Inc., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments   1,155
Fair Value   0
Investment, Identifier [Axis]: SpecialtyCare, Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 614 865
Fair Value 0 $ 0
Investment, Identifier [Axis]: Spectrum Safety Solution Purchaser, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 16,005  
Fair Value 0  
Investment, Identifier [Axis]: Spectrum Safety Solution Purchaser, LLC, Equity    
Schedule of Investments [Line Items]    
Unfunded commitments 5,287  
Fair Value 0  
Investment, Identifier [Axis]: Spectrum Safety Solution Purchaser, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 15,885  
Fair Value 0  
Investment, Identifier [Axis]: Spectrum Safety Solution Purchaser, LLC, Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 75,721  
Fair Value $ 0  
Investment, Identifier [Axis]: Spitfire Parent, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 1.45% [1],[7],[13] 1.59% [2],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[14] $ 78,620  
Ending balance $ 78,218 [1],[7],[13] $ 78,620 [2],[12],[14]
Investment, Identifier [Axis]: Spitfire Parent, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.20% [1],[5],[7],[13] 0.24% [2],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[14] $ 12,128  
Ending balance $ 10,908 [1],[5],[7],[13] $ 12,128 [2],[12],[14]
Investment, Identifier [Axis]: Stamps.com, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 5.17% [1],[3],[7] 5.62% [2],[8],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[12] $ 278,069  
Ending balance 278,782 [1],[3],[7] $ 278,069 [2],[8],[12]
Investment, Identifier [Axis]: State Street Institutional U.S. Government Money Market Fund    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2]   0.40%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2] $ 19,961  
Ending balance [2]   $ 19,961
Investment, Identifier [Axis]: Stepping Stones Healthcare Services, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.05% [1],[3],[4],[7] 0.05% [2],[8],[9],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] $ 2,626  
Ending balance 2,691 [1],[3],[4],[7] $ 2,626 [2],[8],[9],[12]
Investment, Identifier [Axis]: Stepping Stones Healthcare Services, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 745 155
Fair Value 0 0
Investment, Identifier [Axis]: Stepping Stones Healthcare Services, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 371 371
Fair Value $ (2) $ (13)
Investment, Identifier [Axis]: TCFI AEVEX, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 2.03% [1],[7],[13] 2.23% [2],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[14] $ 110,230  
Ending balance $ 109,659 [1],[7],[13] $ 110,230 [2],[12],[14]
Investment, Identifier [Axis]: THL Fund IX Investors (Plymouth II), LP    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.01% [1],[7] 0.01% [2],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12] $ 249  
Ending balance $ 302 [1],[7] $ 249 [2],[12]
Investment, Identifier [Axis]: TPG IX Newark CI, L.P. - LP Interests    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.04% [1],[7] 0.04% [2],[11],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[11],[12] $ 1,965  
Ending balance $ 1,966 [1],[7] $ 1,965 [2],[11],[12]
Investment, Identifier [Axis]: TRP Infrastructure Services, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.65% [1],[7],[13] 0.70% [2],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[14] $ 34,608  
Ending balance $ 35,205 [1],[7],[13] $ 34,608 [2],[14]
Investment, Identifier [Axis]: Tailwind Colony Holding Corporation    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[7],[13] 0.88%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[7],[13] $ 47,442  
Investment, Identifier [Axis]: Tailwind Colony Holding Corporation 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[12],[14]   0.11%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[14] 5,581  
Ending balance [2],[12],[14]   $ 5,581
Investment, Identifier [Axis]: Tailwind Colony Holding Corporation 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[12],[14]   0.84%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[14] $ 41,465  
Ending balance [2],[12],[14]   $ 41,465
Investment, Identifier [Axis]: Tennessee Bidco Limited 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.04% [1],[5],[6],[7],[15] 0.04% [2],[10],[11],[12],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[10],[11],[12],[16] $ 2,010  
Ending balance $ 1,990 [1],[5],[6],[7],[15] $ 2,010 [2],[10],[11],[12],[16]
Investment, Identifier [Axis]: Tennessee Bidco Limited 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 1.03% [1],[5],[6],[7],[15] 1.10% [2],[10],[11],[12],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[10],[11],[12],[16] $ 54,303  
Ending balance $ 55,420 [1],[5],[6],[7],[15] $ 54,303 [2],[10],[11],[12],[16]
Investment, Identifier [Axis]: Tennessee Bidco Limited 3    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.31% [1],[5],[6],[7],[15] 0.33% [2],[10],[11],[12],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[10],[11],[12],[16] $ 16,176  
Ending balance $ 16,520 [1],[5],[6],[7],[15] $ 16,176 [2],[10],[11],[12],[16]
Investment, Identifier [Axis]: Tennessee Bidco Limited 4    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 1.04% [1],[5],[6],[7],[15] 1.12% [2],[10],[11],[12],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[10],[11],[12],[16] $ 55,366  
Ending balance 56,173 [1],[5],[6],[7],[15] $ 55,366 [2],[10],[11],[12],[16]
Investment, Identifier [Axis]: Tennessee Bidco Limited, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 33,860  
Fair Value 0  
Investment, Identifier [Axis]: Tennessee Bidco Limited, Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 16,778  
Fair Value 0  
Investment, Identifier [Axis]: Tetra Technologies, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[11],[12],[14]   0.36%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[11],[12],[14] $ 17,790  
Ending balance [2],[11],[12],[14]   $ 17,790
Investment, Identifier [Axis]: The Fertility Partners, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.09% [1],[3],[4],[5],[6],[7] 0.10% [2],[8],[10],[11],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[10],[11],[12] $ 4,913  
Ending balance $ 4,926 [1],[3],[4],[5],[6],[7] $ 4,913 [2],[8],[10],[11],[12]
Investment, Identifier [Axis]: The Fertility Partners, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.06% [1],[3],[5],[6],[7] 0.07% [2],[8],[10],[11],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[10],[11],[12] $ 3,512  
Ending balance 3,399 [1],[3],[5],[6],[7] $ 3,512 [2],[8],[10],[11],[12]
Investment, Identifier [Axis]: The Fertility Partners, Inc. 3    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[9],[10],[11],[12]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[10],[11],[12] 121  
Ending balance [2],[8],[9],[10],[11],[12]   $ 121
Investment, Identifier [Axis]: The Fertility Partners, Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 1,060 127
Fair Value (13) $ 0
Investment, Identifier [Axis]: The GI Alliance Management, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[10],[12],[14]   0.10%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[10],[12],[14] $ 4,942  
Ending balance [2],[10],[12],[14]   $ 4,942
Investment, Identifier [Axis]: The GI Alliance Management, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[4],[5],[7],[13] 0.07%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[4],[5],[7],[13] $ 3,585  
Investment, Identifier [Axis]: The GI Alliance Management, LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[5],[7],[13] 0.01%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[5],[7],[13] $ 450  
Investment, Identifier [Axis]: The GI Alliance Management, LLC 3    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[5],[7],[13] 0.02%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[5],[7],[13] $ 874  
Investment, Identifier [Axis]: The GI Alliance Management, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 46,071  
Fair Value $ (461)  
Investment, Identifier [Axis]: The Hiller Companies LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[7] 0.15%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[7] $ 8,140  
Investment, Identifier [Axis]: The Hiller Companies LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[7] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[7] $ 33  
Investment, Identifier [Axis]: The Hiller Companies LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 2,267  
Fair Value 0  
Investment, Identifier [Axis]: The Hiller Companies LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 1,384  
Fair Value $ 0  
Investment, Identifier [Axis]: Thevelia US, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.02% [1],[5],[6],[17] 0.03% [2],[10],[11],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[10],[11],[18] $ 1,299  
Ending balance $ 1,301 [1],[5],[6],[17] $ 1,299 [2],[10],[11],[18]
Investment, Identifier [Axis]: Thevelia US, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.09% [1],[5],[6],[7],[17] 0.10% [2],[10],[11],[12],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[10],[11],[12],[18] $ 4,908  
Ending balance $ 4,920 [1],[5],[6],[7],[17] $ 4,908 [2],[10],[11],[12],[18]
Investment, Identifier [Axis]: Titan Investment Company, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.73% [1],[5],[7],[15] 0.79% [2],[10],[12],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[10],[12],[16] $ 39,206  
Ending balance 39,517 [1],[5],[7],[15] $ 39,206 [2],[10],[12],[16]
Investment, Identifier [Axis]: Trader Corp.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[8],[9],[10],[11],[12]   0.15%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[10],[11],[12] $ 7,300  
Ending balance [2],[8],[9],[10],[11],[12]   $ 7,300
Investment, Identifier [Axis]: Trader Corp. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[6],[7] 0.17%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[6],[7] $ 9,385  
Investment, Identifier [Axis]: Trader Corp. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[5],[6],[7] 0.19%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[5],[6],[7] $ 10,505  
Investment, Identifier [Axis]: Trader Corp., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 727 830
Fair Value $ 0 $ (190)
Investment, Identifier [Axis]: Tricor Horizon - LP Interest    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[6],[7] 0.01%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[6],[7] $ 409  
Investment, Identifier [Axis]: Tricor Horizon, LP    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[11],[12]   0.01%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[11],[12] $ 386  
Ending balance [2],[11],[12]   $ 386
Investment, Identifier [Axis]: Trinity Air Consultants Holdings Corp - Common Units    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[7] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[7] $ 5  
Investment, Identifier [Axis]: Trinity Air Consultants Holdings Corp. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 1.15% [1],[3],[4],[7] 1.13% [2],[8],[9],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] $ 55,812  
Ending balance $ 62,042 [1],[3],[4],[7] $ 55,812 [2],[8],[9],[12]
Investment, Identifier [Axis]: Trinity Air Consultants Holdings Corp. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.43% [1],[3],[4],[5],[7] 0.45% [2],[8],[9],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] $ 22,390  
Ending balance 23,259 [1],[3],[4],[5],[7] $ 22,390 [2],[8],[9],[12]
Investment, Identifier [Axis]: Trinity Air Consultants Holdings Corp., Delayed Draw Term Loan 1    
Schedule of Investments [Line Items]    
Unfunded commitments 325 402
Fair Value 0 0
Investment, Identifier [Axis]: Trinity Air Consultants Holdings Corp., Delayed Draw Term Loan 2    
Schedule of Investments [Line Items]    
Unfunded commitments 9,572 11,274
Fair Value 0 (113)
Investment, Identifier [Axis]: Trinity Air Consultants Holdings Corp., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 7,269 6,881
Fair Value $ 0 $ 0
Investment, Identifier [Axis]: Trinity Partners Holdings, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.09% [1],[3],[4],[7] 0.10% [2],[8],[9],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] $ 4,742  
Ending balance 4,868 [1],[3],[4],[7] $ 4,742 [2],[8],[9],[12]
Investment, Identifier [Axis]: Trinity Partners Holdings, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 1,277 1,433
Fair Value $ 0 $ (14)
Investment, Identifier [Axis]: Triple Lift, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 1.07% [1],[3],[7] 1.20% [2],[8],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[12] $ 59,500  
Ending balance $ 57,662 [1],[3],[7] $ 59,500 [2],[8],[12]
Investment, Identifier [Axis]: Triple Lift, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.05% [1],[3],[4],[5],[7] 0.05% [2],[8],[9],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] $ 2,681  
Ending balance 2,489 [1],[3],[4],[5],[7] $ 2,681 [2],[8],[9],[12]
Investment, Identifier [Axis]: Triple Lift, Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 4,747 4,747
Fair Value $ 0 $ 0
Investment, Identifier [Axis]: Turing Holdco, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.16% [1],[5],[6],[7],[15] 0.17% [2],[10],[11],[12],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[10],[11],[12],[16] $ 8,546  
Ending balance $ 8,655 [1],[5],[6],[7],[15] $ 8,546 [2],[10],[11],[12],[16]
Investment, Identifier [Axis]: Turing Holdco, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.08% [1],[4],[5],[6],[7],[15] 0.08% [2],[9],[10],[11],[12],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[10],[11],[12],[16] $ 3,992  
Ending balance $ 4,307 [1],[4],[5],[6],[7],[15] $ 3,992 [2],[9],[10],[11],[12],[16]
Investment, Identifier [Axis]: Turing Holdco, Inc. 3    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.38% [1],[3],[5],[6],[7] 0.25% [2],[11],[12],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[11],[12],[16] $ 12,165  
Ending balance $ 20,499 [1],[3],[5],[6],[7] $ 12,165 [2],[11],[12],[16]
Investment, Identifier [Axis]: Turing Holdco, Inc. 4    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.22% [1],[5],[6],[7],[15] 0.09% [2],[11],[12],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[11],[12],[16] $ 4,509  
Ending balance $ 11,952 [1],[5],[6],[7],[15] $ 4,509 [2],[11],[12],[16]
Investment, Identifier [Axis]: Turing Holdco, Inc. 5    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[5],[6],[7],[15] 0.08%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[5],[6],[7],[15] $ 4,548  
Investment, Identifier [Axis]: Turing Holdco, Inc. 6    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[6],[7],[15] 0.36%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[6],[7],[15] $ 19,476  
Investment, Identifier [Axis]: Turing Holdco, Inc., Delayed Draw Term Loan 1    
Schedule of Investments [Line Items]    
Unfunded commitments 28,019 31,468
Fair Value 0 0
Investment, Identifier [Axis]: Turing Holdco, Inc., Delayed Draw Term Loan 2    
Schedule of Investments [Line Items]    
Unfunded commitments 20,901 20,901
Fair Value $ 0 $ 0
Investment, Identifier [Axis]: UMP Holdings, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.02% [1],[3],[5],[7] 0.02% [2],[8],[10],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[10],[12] $ 1,068  
Ending balance $ 1,084 [1],[3],[5],[7] $ 1,068 [2],[8],[10],[12]
Investment, Identifier [Axis]: UMP Holdings, LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.03% [1],[3],[4],[5],[7] 0.03% [2],[8],[9],[10],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[10],[12] $ 1,463  
Ending balance 1,482 [1],[3],[4],[5],[7] $ 1,463 [2],[8],[9],[10],[12]
Investment, Identifier [Axis]: UMP Holdings, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 440 440
Fair Value $ 0 $ 0
Investment, Identifier [Axis]: US Oral Surgery Management Holdco, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.69% [1],[3],[7] 0.63% [2],[8],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[12] $ 31,065  
Ending balance $ 37,021 [1],[3],[7] $ 31,065 [2],[8],[12]
Investment, Identifier [Axis]: US Oral Surgery Management Holdco, LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.25% [1],[3],[4],[5],[7] 0.32% [2],[9],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[12],[14] $ 15,734  
Ending balance $ 13,624 [1],[3],[4],[5],[7] $ 15,734 [2],[9],[12],[14]
Investment, Identifier [Axis]: US Oral Surgery Management Holdco, LLC 3    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[5],[7] 0.18%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[5],[7] $ 9,604  
Investment, Identifier [Axis]: US Oral Surgery Management Holdco, LLC 4    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[5],[7] 0.04%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[5],[7] $ 2,076  
Investment, Identifier [Axis]: US Oral Surgery Management Holdco, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 39,833 46,867
Fair Value 0 0
Investment, Identifier [Axis]: US Oral Surgery Management Holdco, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 3,735 3,233
Fair Value 0 $ (73)
Investment, Identifier [Axis]: Unified Door & Hardware Group, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [2],[12],[14]   1.87%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[14] $ 92,486  
Ending balance [2],[12],[14]   $ 92,486
Investment, Identifier [Axis]: Unified Door & Hardware Group, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[7],[13] 1.73%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[7],[13] $ 93,265  
Investment, Identifier [Axis]: Unified Door & Hardware Group, LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[5],[7],[13] 0.08%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[5],[7],[13] $ 4,578  
Investment, Identifier [Axis]: Unified Physician Management, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.04% [1],[4],[5],[7],[17] 0.04% [2],[9],[10],[12],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[10],[12],[18] $ 2,102  
Ending balance 2,007 [1],[4],[5],[7],[17] $ 2,102 [2],[9],[10],[12],[18]
Investment, Identifier [Axis]: Unified Physician Management, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 22,616  
Fair Value 0  
Investment, Identifier [Axis]: Unified Physician Management, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 241 241
Fair Value $ 0 $ 0
Investment, Identifier [Axis]: Veregy Consolidated, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.38% [1],[7],[13] 0.38% [2],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[14] $ 18,680  
Ending balance $ 20,611 [1],[7],[13] $ 18,680 [2],[14]
Investment, Identifier [Axis]: Victory Buyer, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.17% [1],[7],[17] 0.18% [2],[12],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12],[18] $ 8,970  
Ending balance 9,138 [1],[7],[17] $ 8,970 [2],[12],[18]
Investment, Identifier [Axis]: WHCG Purchaser III, Inc    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance $ 15,400  
Investment, Identifier [Axis]: WHCG Purchaser III, Inc. 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.52% [1],[3],[5],[7],[22] 0.53% [2],[8],[10],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[10],[12] $ 26,419  
Ending balance $ 28,007 [1],[3],[5],[7],[22] $ 26,419 [2],[8],[10],[12]
Investment, Identifier [Axis]: WHCG Purchaser III, Inc. 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.08% [1],[3],[4],[5],[7],[22] 0.08% [2],[8],[9],[10],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[10],[12] $ 4,084  
Ending balance 4,353 [1],[3],[4],[5],[7],[22] $ 4,084 [2],[8],[9],[10],[12]
Investment, Identifier [Axis]: WHCG Purchaser III, Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 17 17
Fair Value $ 0 $ 0
Investment, Identifier [Axis]: WPEngine, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 1.23% [1],[3],[4],[7] 1.32% [2],[8],[9],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] $ 65,133  
Ending balance 66,467 [1],[3],[4],[7] $ 65,133 [2],[8],[9],[12]
Investment, Identifier [Axis]: WPEngine, Inc., Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 6,667 6,667
Fair Value $ (200) $ (200)
Investment, Identifier [Axis]: West Monroe Partners, LLC 1    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.27% [1],[3],[7] 0.29% [2],[8],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[12] $ 14,377  
Ending balance $ 14,414 [1],[3],[7] $ 14,377 [2],[8],[12]
Investment, Identifier [Axis]: West Monroe Partners, LLC 2    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.01% [1],[3],[4],[5],[7] 0.01% [2],[8],[9],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[12] $ 281  
Ending balance 284 [1],[3],[4],[5],[7] $ 281 [2],[8],[9],[12]
Investment, Identifier [Axis]: West Monroe Partners, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 1,155 1,155
Fair Value $ 0 $ 0
Investment, Identifier [Axis]: Windows Acquisition Holdings, Inc.    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.90% [1],[5],[7],[13] 1.01% [2],[10],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[10],[12],[14] $ 49,997  
Ending balance $ 48,362 [1],[5],[7],[13] $ 49,997 [2],[10],[12],[14]
Investment, Identifier [Axis]: World Insurance Associates, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.70% [1],[4],[7],[13] 0.75% [2],[9],[12],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[9],[12],[14] $ 36,914  
Ending balance 37,546 [1],[4],[7],[13] $ 36,914 [2],[9],[12],[14]
Investment, Identifier [Axis]: World Insurance Associates, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 47,025 47,025
Fair Value (470) (470)
Investment, Identifier [Axis]: World Insurance Associates, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 2,939 2,939
Fair Value $ 0 $ (59)
Investment, Identifier [Axis]: Zendesk Inc    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.03% [1],[3],[4],[5],[7] 0.03% [2],[8],[9],[10],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[8],[9],[10],[12] $ 1,614  
Ending balance 1,614 [1],[3],[4],[5],[7] $ 1,614 [2],[8],[9],[10],[12]
Investment, Identifier [Axis]: Zendesk Inc, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 361 361
Fair Value (5) (5)
Investment, Identifier [Axis]: Zendesk Inc, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 169 169
Fair Value $ (3) $ (3)
Investment, Identifier [Axis]: Zeus, LLC    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets [1],[3],[4],[7] 0.45%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ending balance [1],[3],[4],[7] $ 24,376  
Investment, Identifier [Axis]: Zeus, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Unfunded commitments 4,568  
Fair Value (34)  
Investment, Identifier [Axis]: Zeus, LLC, Revolver    
Schedule of Investments [Line Items]    
Unfunded commitments 3,426  
Fair Value $ (17)  
Investment, Identifier [Axis]: Zoro Common Equity    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.00% [1],[6],[7] 0.00% [2],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12] $ 21  
Ending balance $ 21 [1],[6],[7] $ 21 [2],[12]
Investment, Identifier [Axis]: Zoro Series A Preferred Shares    
Schedule of Investments [Line Items]    
Fair Value as % of Net Assets 0.01% [1],[7] 0.01% [2],[12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Beginning balance [2],[12] $ 418  
Ending balance $ 456 [1],[7] $ 418 [2],[12]
[1] Unless otherwise indicated, all debt and equity investments held by the Company (which such term “Company” shall include the Company’s consolidated subsidiaries for purposes of this Consolidated Schedule of Investments) are denominated in dollars. As of June 30, 2024, the Company had investments denominated in Canadian Dollars (CAD), Euros (EUR), British Pounds (GBP), Danish Krone (DKK), Swedish Krona (SEK), Norwegian Krone (NOK), and Australian Dollars (AUD). All debt investments are income producing unless otherwise indicated. All equity investments are non-income producing unless otherwise noted. Certain portfolio company investments are subject to contractual restrictions on sales. The total par amount (in thousands) is presented for debt investments, while the number of shares or units (in whole amounts) owned is presented for equity investments. Each of the Company’s investments is pledged as collateral, under one or more of its credit facilities unless otherwise indicated.
[2] Unless otherwise indicated, all debt and equity investments held by the Company (which such term “Company” shall include the Company’s consolidated subsidiaries for purposes of this Consolidated Schedule of Investments) are denominated in dollars. As of December 31, 2023, the Company had investments denominated in Canadian Dollars (CAD), Euros (EUR), British Pounds (GBP), Danish Krone (DKK), Swedish Krona (SEK), and Norwegian Krone (NOK). All debt investments are income producing unless otherwise indicated. All equity investments are non-income producing unless otherwise noted. Certain portfolio company investments are subject to contractual restrictions on sales. The total par amount (in thousands) is presented for debt investments, while the number of shares or units (in whole amounts) owned is presented for equity investments. Each of the Company’s investments is pledged as collateral, under one or more of its credit facilities unless otherwise indicated.
[3] The interest rate floor on these investments as of June 30, 2024 was 0.75%.
[4] Position or portion thereof is an unfunded commitment, and no interest is being earned on the unfunded portion, although the investment may be subject to unused commitment fees. Negative cost and fair value results from unamortized fees, which are capitalized to the investment cost. The unfunded commitment may be subject to a commitment termination date that may expire prior to the maturity date stated. See below for more information on the Company’s unfunded commitments:
[5] These investments are not pledged as collateral under any of the Company's credit facilities. For other debt investments that are pledged to the Company's credit facilities, a single investment may be divided into parts that are individually pledged as collateral to separate credit facilities. Any other debt investments listed above are pledged to financing facilities and are not available to satisfy the creditors of the Company.
[6] The investment is not a qualifying asset under Section 55(a) of the Investment Company Act of 1940, as amended (together with the rules and regulations promulgated thereunder, the “1940 Act”). The Company may not acquire any non-qualifying asset unless, at the time of acquisition, qualifying assets represent at least 70% of the Company’s total assets. As of June 30, 2024, non-qualifying assets represented 11.7% of total assets as calculated in accordance with regulatory requirements.
[7] These investments were valued using unobservable inputs and are considered Level 3 investments. Fair value was determined in good faith by or under the direction of the Board of Trustees (see Note 2), pursuant to the Company’s valuation policy.
[8] The interest rate floor on these investments as of December 31, 2023 was 0.75%.
[9] Position or portion thereof is an unfunded commitment, and no interest is being earned on the unfunded portion, although the investment may be subject to unused commitment fees. Negative cost and fair value results from unamortized fees, which are capitalized to the investment cost. The unfunded commitment may be subject to a commitment termination date that may expire prior to the maturity date stated. See below for more information on the Company’s unfunded commitments:
[10] These investments are not pledged as collateral under any of the Company's credit facilities. For other debt investments that are pledged to the Company's credit facilities, a single investment may be divided into parts that are individually pledged as collateral to separate credit facilities. Any other debt investments listed above are pledged to financing facilities and are not available to satisfy the creditors of the Company.
[11] The investment is not a qualifying asset under Section 55(a) of the Investment Company Act of 1940, as amended (together with the rules and regulations promulgated thereunder, the “1940 Act”). The Company may not acquire any non-qualifying asset unless, at the time of acquisition, qualifying assets represent at least 70% of the Company’s total assets. As of December 31, 2023, non-qualifying assets represented 11.0% of total assets as calculated in accordance with regulatory requirements.
[12] These investments were valued using unobservable inputs and are considered Level 3 investments. Fair value was determined in good faith by or under the direction of the Board of Trustees (see Note 2), pursuant to the Company’s valuation policy.
[13] The interest rate floor on these investments as of June 30, 2024 was 1.00%
[14] The interest rate floor on these investments as of December 31, 2023 was 1.00%.
[15] There are no interest rate floors on these investments.
[16] There are no interest rate floors on these investments.
[17] The interest rate floor on these investments as of June 30, 2024 was 0.50%
[18] The interest rate floor on these investments as of December 31, 2023 was 0.50%.
[19] The interest rate floor on these investments as of December 31, 2023 was 1.50%.
[20] Under the 1940 Act, the Company would be deemed to “control” a portfolio company if the Company owned more than 25% of its outstanding voting securities and/or held the power to exercise control over the management or policies of the portfolio company. Under the 1940 Act, the Company would be deemed an “affiliated person” of a portfolio company if the Company owns 5% or more of the portfolio company’s outstanding voting securities. As of June 30, 2024, the Company’s non-controlled/affiliated investments were as follows:
Fair Value as of December 31, 2023
Gross AdditionsGross Reductions
Net Change in Unrealized Gains (Losses)
Net Realized Gain (Loss)
Fair Value as of June 30, 2024
Dividend and Interest Income
Non-controlled/Affiliated Investments
Blackstone Donegal Holdings LP$5,790 $— $— $937 $— $6,727 $— 
Material Holdings, LLC— 20,443 — 201 — 20,644 110 
Material Holdings, LLC— 4,968 — (1,931)— 3,037 27 
Material+ Holding Company, LLC— — — — — — — 
Total$5,790 $25,411 $— $(793)$— $30,408 $137 
[21] These loans are “last-out” portions of loans. The “last-out” portion of the Company's loan investment generally earns a higher interest rate than the “first-out” portion, and in exchange the “first-out” portion would generally receive priority with respect to payment principal, interest and any other amounts due thereunder over the “last-out” portion.
[22] Loan, or a portion of loan as noted, was on non-accrual status as of June 30, 2024. As of June 30, 2024, $23.5 million of the cost and $15.4 million of fair value of WHCG Purchaser III, Inc. is considered to be on non-accrual status.
[23] These loans are “last-out” portions of loans. The “last-out” portion of the Company's loan investment generally earns a higher interest rate than the “first-out” portion, and in exchange the “first-out” portion would generally receive priority with respect to payment principal, interest and any other amounts due thereunder over the “last-out” portion.
[24] Loan was on non-accrual status as of December 31, 2023.
v3.24.2.u1
Condensed Consolidated Schedule of Investments - Derivatives (Parenthetical)
$ in Thousands
 6 Months Ended
Jun. 30, 2024
USD ($)
Open Forward Foreign Currency Contract [Line Items]  
Notional Amount $ 11,330,469
Investments at fair value $ 11,293,797
Investment, Type [Extensible Enumeration] Derivative [Member]
Interest Rate Swap  
Open Forward Foreign Currency Contract [Line Items]  
Company Receives 5.88%
Company Pays 1.38%
Notional Amount $ 400,000
Investments at fair value 2,015
Upfront Payments / Receipts 0
Change in Unrealized Appreciation (Depreciation) $ 2,015 [1]
[1] For interest rates swaps designated in qualifying hedge relationships, the change in fair value is recorded in Interest expense in the Condensed Consolidated Statements of Operations.
v3.24.2.u1
Organization
 6 Months Ended
Jun. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Organization Organization
Blackstone Secured Lending Fund (together with its consolidated subsidiaries, the “Company”), is a Delaware statutory trust formed on March 26, 2018, and structured as an externally managed, non-diversified, closed-end management investment company. On October 26, 2018, the Company elected to be regulated as a business development company (“BDC”) under the Investment Company Act of 1940, as amended (together with the rules and regulations promulgated thereunder, the “1940 Act”). In addition, the Company has elected to be treated for U.S. federal income tax purposes, and intends to qualify annually, as a regulated investment company (a “RIC”), under Subchapter M of the Internal Revenue Code of 1986, as amended (together with the rules and regulations promulgated thereunder, the “Code”).
The Company is externally managed by Blackstone Credit BDC Advisors LLC (the “Adviser”) an affiliate of Blackstone Alternative Credit Advisors LP (the “Administrator” and, collectively with its affiliates in the credit, asset-based finance, and insurance asset management business unit of Blackstone Inc. (“Blackstone”), “Blackstone Credit & Insurance,” or “BXCI”). The Administrator provides certain administrative and other services necessary for the Company to operate pursuant to an administration agreement (the “Administration Agreement”). References herein to information about Blackstone Credit & Insurance from December 31, 2023 or prior refers solely to the Adviser and Blackstone Alternative Credit Advisors LP, collectively with their credit-focused affiliates within Blackstone Credit & Insurance.
The Company’s investment objectives are to generate current income and, to a lesser extent, long-term capital appreciation. The Company seeks to achieve its investment objectives primarily through originated loans and other securities, including syndicated loans, of private U.S. companies, typically in the form of first lien senior secured and unitranche loans (including first out/last out loans), and to a lesser extent, second lien, third lien, unsecured and subordinated loans and other debt and equity securities.
The Company commenced its loan origination and investment activities on November 20, 2018.
On October 28, 2021, the Company priced its initial public offering (“IPO”), and the Company's common shares of beneficial interest (“Common Shares”) began trading on the New York Stock Exchange (“NYSE”). See “Note 9. Net Assets” for further details.
v3.24.2.u1
Significant Accounting Policies
 6 Months Ended
Jun. 30, 2024
Accounting Policies [Abstract]  
Significant Accounting Policies Significant Accounting Policies
Basis of Presentation
The condensed consolidated financial statements have been prepared on the accrual basis of accounting in accordance with accounting principles generally accepted in the United States (“GAAP”). As an investment company, the Company applies the accounting and reporting guidance in Accounting Standards Codification (“ASC”) Topic 946, “Financial Services – Investment Companies” (“ASC 946”) issued by the Financial Accounting Standards Board (“FASB”).
The interim condensed consolidated financial statements have been prepared in accordance with GAAP for interim financial information and pursuant to the requirements for reporting on Form 10-Q and Article 6 and Article 10 of Regulation S-X. Accordingly, certain disclosures accompanying the annual consolidated financial statements prepared in accordance with GAAP are omitted. In the opinion of management, all adjustments considered necessary for the fair presentation of the condensed consolidated financial statements for the interim period presented, have been included. The current period’s results of operations will not necessarily be indicative of results that ultimately may be achieved for the fiscal year ending December 31, 2024.
All intercompany balances and transactions have been eliminated.
Certain prior period information has been reclassified to conform to the current period presentation.
Use of Estimates
The preparation of condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements. Such amounts could differ from those estimates and such differences could be material. Assumptions and estimates regarding the valuation of investments involve a higher degree of judgment and complexity and these assumptions and estimates may be significant to the condensed consolidated financial statements. Actual results may ultimately differ from those estimates.
Consolidation
As provided under ASC 946, the Company will not consolidate its investment in a company other than an investment company subsidiary or a controlled operating company whose business consists of providing services to the Company.
The Company consolidated the results of the Company’s wholly-owned subsidiaries which are considered to be investment companies. As of June 30, 2024 and December 31, 2023, the Company's consolidated subsidiaries were BGSL Jackson Hole Funding LLC (“Jackson Hole Funding”), BGSL Breckenridge Funding LLC (“Breckenridge Funding”), BGSL Big Sky Funding LLC (“Big Sky Funding”), BGSL Investments LLC (“BGSL Investments”), BXSL Associates GP (Lux) S.à r.l, BXSL Direct Lending (Lux) SCSp, BXSL C-1 LLC, and BXSL C-2 Funding LLC.
Cash and Cash Equivalents
Cash and cash equivalents consist of demand deposits and highly liquid investments, such as money market funds, with original maturities of three months or less. Cash and cash equivalents are carried at cost, which approximates fair value. The Company deposits its cash and cash equivalents with financial institutions and, at times, may exceed the Federal Deposit Insurance Corporation insured limit.
Investments
Investment transactions are recorded on a trade date basis.
Realized gains or losses are measured by the difference between the net proceeds received (excluding prepayment fees, if any) and the amortized cost basis of the investment using the specific identification method without regard to unrealized gains or losses previously recognized, and include investments charged off during the period, net of recoveries, and is recorded within Net realized gain (loss) on the Condensed Consolidated Statements of Operations.
The net change in unrealized gains or losses primarily reflects the change in investment values, including the reversal of previously recorded unrealized gains or losses with respect to investments realized during the period, and is recorded within Net change in unrealized appreciation (depreciation) on the Condensed Consolidated Statements of Operations.
Valuation of Investments
The Company is required to report its investments, including those for which current market values are not readily available, at fair value.
The Company values its investments in accordance with ASC 820, Fair Value Measurements (“ASC 820”), which defines fair value as the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the applicable measurement date, and Rule 2a-5 under the 1940 Act.
Under ASC 820, fair value is based on observable market prices or parameters or derived from such prices or parameters when such quotations are readily available. In accordance with Rule 2a-5 under the 1940 Act, fair value means the value of a portfolio investment for which market quotations are not readily available. A market quotation is “readily available” only when it is a quoted price (unadjusted) in active markets for identical instruments that a fund can access at the measurement date, provided that such a quotation is not considered to be readily available if it is not reliable.
Where prices or inputs are not available or, in the judgment of the Board, with assistance of the Adviser, the Audit Committee and independent valuation firm(s), determine to be not reliable, valuation techniques based on the facts and circumstances of the particular investment will be utilized. These valuation approaches involve some level of management estimation and judgment, the degree of which is dependent on the price transparency for the investments or market and the investments’ complexity. In the absence of observable, reliable market prices, the Company values its investments using various valuation methodologies applied on a consistent basis.
An enterprise value (“EV”) analysis is generally performed to determine the value of equity investments, control debt investments and non-control debt investments that are credit-impaired, and to determine if debt investments are credit-impaired. The Adviser will generally utilize approaches including the market approach, the income approach or both approaches, as appropriate, when calculating EV. The primary method for determining EV for non-control investments, and control investments without reliable projections, uses a multiple analysis whereby appropriate multiples are applied to the portfolio company’s earnings before interest, taxes, depreciation and amortization (“EBITDA”) or another key financial metric (e.g., such as revenues, cash flows or net income) (“Performance Multiple”). Performance Multiples are typically determined based upon a review of publicly-traded comparable companies and market comparable transactions, if any. The second method for determining EV (and primary method for control investments with reliable projections) uses a discounted cash flow analysis whereby future expected cash flows and the anticipated terminal value of the portfolio company are discounted to determine a present value using estimated discount rates. The income approach is generally used when the Adviser has visibility into the long term projected cash flows of a portfolio company.
If debt investments are credit-impaired, which occurs when there is insufficient coverage under the enterprise value analysis through the respective investment’s position in the capital structure, the Adviser generally uses the enterprise value “waterfall” approach or a recovery method (if a liquidation or restructuring is deemed likely) to determine fair value. For debt investments that are not determined to be credit-impaired, the Adviser generally uses a market interest rate yield analysis to determine fair value. To determine fair value using a yield analysis, the expected cash flows are projected based on the contractual terms of the debt security and discounted back to the measurement date based on a market yield. A market yield is determined based upon an assessment of current and expected market yields for similar investments and risk profiles. The Company considers the current contractual interest rate, the maturity and other terms of the investment relative to risk of the company and the specific investment. A key determinant of risk, among other things, is the leverage through the investment relative to the enterprise value of the portfolio company. As debt investments held by the Company are substantially illiquid with no active transaction market, the Company depends on primary market data, including newly funded transactions, as well as secondary market data with respect to high yield debt instruments and syndicated loans, as inputs in determining the appropriate market yield, as applicable. The fair value of loans with call protection is generally capped at par plus applicable prepayment premium in effect at the measurement date.
ASC 820 prioritizes the use of observable market prices derived from such prices. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The levels used for classifying investments are not necessarily an indication of the risk associated with investing in these securities. The three levels of the fair value hierarchy are as follows:
•Level 1: Inputs to the valuation methodology are quoted prices available in active markets for identical instruments as of the reporting date. The types of financial instruments included in Level 1 include unrestricted securities, including equities and derivatives, listed in active markets.
•Level 2: Inputs to the valuation methodology are other than quoted prices in active markets, which are either directly or indirectly observable as of the reporting date. The types of financial instruments in this category include less liquid and restricted securities listed in active markets, securities traded in other than active markets, government and agency securities and certain over-the-counter derivatives where the fair value is based on observable inputs.
•Level 3: Inputs to the valuation methodology are unobservable and significant to overall fair value measurement. The inputs into the determination of fair value require significant management judgment or estimation. Financial instruments that are included in this category include debt and equity investments in privately held entities, collateralized loan obligations (“CLOs”) and certain over-the-counter derivatives where the fair value is based on unobservable inputs.
In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, an investment’s level within the fair value hierarchy is based on the lowest level of input that is significant to the overall fair value measurement. The Board’s assessment, with the assistance of the Adviser, the Audit Committee and independent valuation firm(s), of the significance of a particular input to the fair value measurement in its entirety requires judgment, and considers factors specific to the investment. Transfers between levels, if any, are recognized at the beginning of the quarter in which the transfer occurs.
The Company evaluates the source of the inputs, including any markets in which its investments are trading (or any markets in which securities with similar attributes are trading), in determining fair value. When an investment is valued based on prices provided by reputable dealers or pricing services (that is, broker quotes), the Company subjects those prices to various criteria in making the determination as to whether a particular investment would qualify for treatment as a Level 2 or Level 3 investment.
Due to the inherent uncertainty of determining the fair value of investments that do not have a readily available market value, the fair value of the Company’s investments may fluctuate from period to period, and these differences could be material. Additionally, the fair value of the Company’s investments may differ significantly from the values that would have been used had a ready market existed for such investments and may differ materially from the values that the Company may ultimately realize. Further, such investments are generally subject to legal and other restrictions on resale or otherwise are less liquid than publicly-traded securities. If the Company was required to liquidate a portfolio investment in a forced or liquidation sale, it could realize significantly less than the value at which the Company has recorded it. In addition, changes in the market environment and other events that may occur over the life of the investments may cause the gains or losses ultimately realized on these investments to be different than the unrealized gains or losses reflected in the valuations currently assigned. See “Item 2. Management’s Discussion and Analysis of Financial Conditions and Results of Operations—Critical Accounting Estimates.”
Receivables/Payables From Investments Sold/Purchased
Receivables/payables from investments sold/purchased consist of amounts receivable to or payable by the Company for transactions that have not settled at the reporting date.
Derivative Instruments
The Company recognizes all derivative instruments as assets or liabilities at fair value in its condensed consolidated financial statements. Derivative contracts entered into by the Company are not designated in hedge accounting relationships and all changes in fair value are recognized through current period gains or losses.
In the normal course of business, the Company has commitments and risks resulting from its investment transactions, which may include those involving derivative instruments. Derivative instruments are measured in terms of the notional contract amount and derive their value based upon one or more underlying instruments. While the notional amount gives some indication of the Company’s derivative activity, it generally is not exchanged, but is only used as the basis on which interest and other payments are exchanged. Derivative instruments are subject to various risks similar to non-derivative instruments including market, credit, liquidity, and operational risks. The Company manages these risks on an aggregate basis as part of its risk management process.
The Company designated certain interest rate swaps as the hedging instrument in a qualifying fair value hedge accounting relationship, and therefore the change in fair value of the hedging instrument and hedged item are recorded in Interest expense and recognized as components of Interest expense in the Condensed Consolidated Statements of Operations. The change in fair value of the interest rate swap is offset by a change in the carrying value of the fixed rate debt.
Forward Purchase Agreement
Forward purchase agreements are recognized at fair value through current period gains or losses on the date on which the contract is entered into and are subsequently re-measured at fair value. All forward purchase agreements are carried as assets when fair value is positive and as liabilities when fair value is negative. A forward purchase agreement is derecognized when the obligation specified in the contract is discharged, canceled or expired.
Foreign Currency Transactions
Amounts denominated in foreign currencies are translated into U.S. dollars on the following basis: (i) investments and other assets and liabilities denominated in foreign currencies are translated into U.S. dollars based upon currency exchange rates effective on the last business day of the period; and (ii) purchases and sales of investments, borrowings and repayments of such borrowings, income, and expenses denominated in foreign currencies are translated into U.S. dollars based upon currency exchange rates prevailing on the transaction dates.
The Company includes net changes in fair values on investments held resulting from foreign exchange rate fluctuations in Translation of assets and liabilities in foreign currencies on the Condensed Consolidated Statements of Operations, if any. Foreign security and currency translations may involve certain considerations and risks not typically associated with investing in U.S. companies and U.S. government securities. These risks include, but are not limited to, currency fluctuations and revaluations and future adverse political, social and economic developments, which could cause investments in foreign markets to be less liquid and prices more volatile than those of comparable U.S. companies or U.S. government securities.
Revenue Recognition
Interest Income
Interest income is recorded on an accrual basis and includes the accretion of discounts and amortizations of premiums. Discounts from and premiums to par value on debt investments purchased are accreted/amortized into interest income over the life of the respective security using the effective interest method. The amortized cost of debt investments represents the original cost, including loan origination fees and upfront fees received that are deemed to be an adjustment to yield, adjusted for the accretion of discounts and amortization of premiums, if any. Upon prepayment of a loan or debt security, any prepayment premiums, unamortized upfront loan origination fees and unamortized discounts are recorded as interest income in the current period. For the three and six months ended June 30, 2024, the Company recorded $0.4 million and $2.3 million, respectively, in non-recurring interest income (e.g., prepayment premiums, accelerated accretion of upfront loan origination fees and unamortized discounts). For the three and six months ended June 30, 2023, the Company recorded $13.0 million and $13.4 million, respectively, in non-recurring interest income.
PIK Income
The Company has loans in its portfolio that contain payment-in-kind (“PIK”) provisions. PIK represents interest that is accrued and recorded as interest income at the contractual rates, increases the loan principal on the respective capitalization dates, and is generally due at maturity. Such income is included in payment-in-kind interest income in the Condensed Consolidated Statements of Operations. If at any point the Company believes PIK is not expected to be realized, the investment generating PIK will be placed on non-accrual status. When a PIK investment is placed on non-accrual status, the accrued, uncapitalized interest is generally reversed through payment-in-kind interest income. To satisfy the Company’s annual RIC distribution requirements, this non-cash source of income must be included in determining the amounts to be paid out to shareholders in the form of dividends, even though the Company has not yet collected cash.
Dividend Income
Dividend income on preferred equity securities is recorded on an accrual basis to the extent that such amounts are payable by the portfolio company and are expected to be collected. Dividend income on common equity securities is recorded on the record date for private portfolio companies or on the ex-dividend date for publicly-traded portfolio companies.
Fee Income
The Company may receive various fees in the ordinary course of business such as structuring, consent, waiver, amendment, syndication and other miscellaneous fees as well as fees for managerial assistance rendered by the Company to the portfolio companies. Such fees are recognized as income when earned or the services are rendered.
Non-Accrual Income
Loans are generally placed on non-accrual status when there is reasonable doubt whether principal or interest will be collected in full. Accrued interest is generally reversed when a loan is placed on non-accrual status. Additionally, any original issue discount and market discount are no longer accreted to interest income as of the date the loan is placed on non-accrual status. Interest payments received on non-accrual loans may be recognized as income or applied to principal depending upon management’s judgment regarding collectability. Non-accrual loans are restored to accrual status when past due principal and interest is paid current and, in management’s judgment, are likely to remain current. Management may make exceptions to this treatment and determine to not place a loan on non-accrual status if the loan has sufficient collateral value and is in the process of collection.
For further information regarding the non-accrual status of investments refer to “Note 4. Investments”.
Organization Expenses and Offering Expenses
The Company records expenses related to public equity offerings as a reduction of capital upon completion of an offering of registered securities. The costs associated with any renewals of a shelf registration statement will be expensed as incurred.
Deferred Financing Costs and Debt Issuance Costs
Deferred financing and debt issuance costs represent fees and other direct incremental costs incurred in connection with the Company’s borrowings. These expenses are deferred and amortized into interest expense over the life of the related debt instrument. Deferred financing costs related to revolving credit facilities are presented separately as an asset on the Company’s Condensed Consolidated Statements of Assets and Liabilities. Debt issuance costs related to any issuance of installment debt or notes are presented net against the outstanding debt balance of the related security.
Income Taxes
The Company has elected to be treated as a BDC under the 1940 Act. The Company also has elected to be treated as a RIC under the Code. So long as the Company maintains its status as a RIC, it generally will not pay corporate-level U.S. federal income taxes on any ordinary income or capital gains that it distributes at least annually to its shareholders as dividends. Rather, any tax liability related to income earned and distributed by the Company would represent obligations of the Company’s investors and would not be reflected in the condensed consolidated financial statements of the Company.
The Company evaluates tax positions taken or expected to be taken in the course of preparing its condensed consolidated financial statements to determine whether the tax positions are “more-likely-than-not” to be sustained by the applicable tax authority. Tax positions not deemed to meet the “more-likely-than-not” threshold are reserved and recorded as a tax benefit or expense in the current year. All penalties and interest associated with income taxes are included in income tax expense. Conclusions regarding tax positions are subject to review and may be adjusted at a later date based on factors including, but not limited to, on-going analyses of tax laws, regulations and interpretations thereof.
To qualify for and maintain qualification as a RIC, the Company must, among other things, meet certain source-of-income and asset diversification requirements. In addition, to qualify for taxation as a RIC, the Company must distribute to its shareholders, for each taxable year, at least 90% of the sum of (i) its “investment company taxable income” for that year (without regard to the deduction for dividends paid), which is generally its ordinary income plus the excess, if any, of its realized net short-term capital gains over its realized net long-term capital losses and (ii) its net tax-exempt income.
In addition, based on the excise tax distribution requirements, the Company is subject to a 4% nondeductible federal excise tax on certain undistributed income unless the Company distributes in a timely manner in each taxable year an amount at least equal to the sum of (i) 98% of its ordinary income for the calendar year, (ii) 98.2% of its capital gain net income (both long-term and short-term) for the one-year period ending October 31 in that calendar year and (iii) any income realized, but not distributed, in prior years. For this purpose, however, any ordinary income or capital gain net income retained by the Company that is subject to corporate income tax is considered to have been distributed.
For the three and six months ended June 30, 2024, the Company incurred $3.4 million and $6.8 million, respectively, of U.S. federal excise tax. For the three and six months ended June 30, 2023, the Company incurred $5.0 million and $7.6 million, respectively, of U.S. federal excise tax.
Distributions
To the extent that the Company has taxable income available, the Company intends to make quarterly distributions to its shareholders. Distributions to shareholders are recorded on the record date. All distributions will be paid at the discretion of the Board and will depend on the Company’s earnings, financial condition, maintenance of the Company's tax treatment as a RIC, compliance with applicable BDC regulations and such other factors as the Board may deem relevant from time to time.
Recent Accounting Pronouncements
In November 2023, the FASB issued ASU 2023-07 “Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures,” (“ASU 2023-07”). ASU 2023-07 enhances the disclosures required for reportable segments on an annual and interim basis. ASU 2023-07 is effective on a retrospective basis for annual periods beginning after December 15, 2023, for interim periods within fiscal years beginning after December 15, 2024, and early adoption is permitted. The Company does not expect the adoption of ASU 2023-07 to have a material impact on its consolidated financial statements.
In December 2023, the FASB issued ASU 2023-09 “Income Taxes (Topic 740): Improvements to Income Tax Disclosures,” (“ASU 2023-09”). ASU 2023-09 requires additional disaggregated disclosures on the entity’s effective tax rate reconciliation and additional details on income taxes paid. ASU 2023-09 is effective on a prospective basis, with the option for retrospective application, for annual periods beginning after December 15, 2024 and early adoption is permitted. The Company does not expect the adoption of ASU 2023-09 to have a material impact on its consolidated financial statements.
v3.24.2.u1
Agreements and Related Party Transactions
 6 Months Ended
Jun. 30, 2024
Related Party Transactions [Abstract]  
Agreements and Related Party Transactions Agreements and Related Party Transactions
Investment Advisory Agreement
On October 1, 2018, the Company entered into the original investment advisory agreement with the Adviser. The Adviser is responsible for originating prospective investments, conducting research and due diligence investigations on potential investments, analyzing investment opportunities, negotiating and structuring the Company’s investments and monitoring its investments and portfolio companies on an ongoing basis.
On October 18, 2021, the Company entered into an amended and restated investment advisory agreement (as amended and restated, the “Investment Advisory Agreement”), pursuant to which the Adviser manages the Company on a day-to-day basis. The Investment Advisory Agreement is substantially the same as the prior investment advisory agreement except, following the IPO, the incentive fee on income became subject to a twelve-quarter lookback quarterly hurdle rate of 1.50% as opposed to a single quarter measurement and became subject to an Incentive Fee Cap (as defined below) based on the Company’s Cumulative Net Return (as defined below). The amendment to the Investment Advisory Agreement does not result in higher fees (on a cumulative basis) payable to the Adviser than the fees that would have otherwise been payable to the Adviser under the original investment advisory agreement.
The Company pays the Adviser a fee for its services under the Investment Advisory Agreement consisting of two components: a management fee and an incentive fee. The cost of both the management fee and the incentive fee is borne by the shareholders. The initial term of the Investment Advisory Agreement was two years from October 1, 2018, and on May 6, 2020 and May 6, 2021, it was renewed and approved by the Board, including a majority of trustees who are not parties to the Investment Advisory Agreement or “interested persons” (as such term is defined in Section 2(a)(19) of the 1940 Act) (the “Independent Trustees”), for a one-year period. On October 18, 2021, the Board approved the amended and restated Investment Advisory Agreement. Unless earlier terminated, the Investment Advisory Agreement will renew automatically for successive annual periods, provided that such continuance is specifically approved at least annually by the vote of the Board and by the vote of a majority of the Independent Trustees. The Investment Advisory Agreement was most recently renewed and approved by the Board, including a majority of the Independent Trustees, on May 1, 2024 for a one-year period ending on May 31, 2025.
The Adviser implemented a waiver effective from the consummation of the IPO to extend the Company’s pre-IPO fee structure for a period of two years. With the waiver in place, instead of having the base management fee and each incentive fee increase to 1.00% and 17.5%, respectively, following the IPO, each such fee remained at 0.75% and 15.0% for a period of two years following the IPO (the “Waiver Period”). As a result of the fee waiver, the pre-listing management fee and incentive fee rates paid by the Company to the Adviser did not increase during the Waiver Period. Amounts waived by the Adviser are not subject to recoupment by the Adviser. The Waiver Period ended on October 28, 2023.
Base Management Fees
Starting from the consummation of the IPO, the management fee pursuant to the Investment Advisory Agreement is payable quarterly in arrears at an annual rate of 1.0% of the average value of the Company’s “gross assets” at the end of the two most recently completed calendar quarters. For purposes of the Investment Advisory Agreement, “gross assets” means the Company’s total assets determined on a consolidated basis in accordance with GAAP, excluding undrawn commitments but including assets purchased with borrowed amounts. The management fee was calculated for the quarter ended December 31, 2021, and the quarter ended December 31, 2023, at a weighted rate calculated based on the fee rates applicable before and after the consummation of the IPO and the expiration of the Waiver Period based on the number of days in the calendar quarter before and after the consummation of the IPO and the expiration of the Waiver Period.
Prior to the consummation of the IPO, the management fee was 0.75% of the average value of the Company’s gross assets at the end of the two most recently completed calendar quarters. In order to maintain the same management fee arrangement that the Company had in place prior to the IPO for a period of time following the consummation of the IPO, the Adviser voluntarily waived its right to receive the base management fee in excess of 0.75% of the average value of the Company’s gross assets at the end of the two most recently completed calendar quarters during the Waiver Period. Amounts waived by the Adviser are not subject to recoupment by the Adviser.
For the three and six months ended June 30, 2024, base management fees were $28.1 million and $54.1 million, respectively. For the three and six months ended June 30, 2023, base management fees were $24.3 million and $49.0 million, respectively, of which $6.1 million and $12.2 million, respectively, were waived. The Waiver Period ended on October 28, 2023.
As of June 30, 2024 and December 31, 2023, $28.1 million and $23.0 million, respectively, was payable to the Adviser relating to management fees.
Incentive Fees
The incentive fees consist of two components that are determined independently of each other, with the result that one component may be payable even if the other is not. One component is based on income and the other component is based on capital gains, each as described below:
(i) Income based incentive fees:
The first part of the incentive fee, an income based incentive fee, is calculated and payable quarterly in arrears based on the Company’s Pre-Incentive Fee Net Investment Income Returns as defined in the Investment Advisory Agreement. Pre-Incentive Fee Net Investment Income Returns means, as the context requires, either the dollar value of, or percentage rate of return on the value of the Company’s net assets at the end of the immediately preceding quarter from, interest income, dividend income and any other income (including any other fees (other than fees for providing managerial assistance), such as commitment, origination, structuring, diligence and consulting fees or other fees that the Company receives from portfolio companies) accrued during the calendar quarter, minus the Company’s operating expenses accrued for the quarter (including the management fee, expenses payable under the Administration Agreement, and any interest expense or fees on any credit facilities or outstanding debt and dividends paid on any issued and outstanding preferred shares, but excluding the incentive fee. Pre-Incentive Fee Net Investment Income Returns includes, in the case of investments with a deferred interest feature (such as original issue discount, debt instruments with PIK interest and zero-coupon securities)), accrued income that the Company has not yet received in cash. Pre-incentive fee net investment income excludes any realized capital gains, realized capital losses or unrealized capital appreciation or depreciation. The Company excludes the impact of expense support payments and recoupments from pre-incentive fee net investment income. Shareholders may be charged a fee on an income amount that is higher than the income they may ultimately receive.
Pre-Incentive Fee Net Investment Income Returns, expressed as a rate of return on the value of our net assets at the end of the immediately preceding quarter, is compared to a “hurdle rate” of return of 1.5% per quarter (6.0% annualized).
Pursuant to the Investment Advisory Agreement, the Company is required to pay an income based incentive fee of 17.5% (15% prior to the consummation of the IPO), with a 1.5% hurdle and 100% catch-up. However, the Adviser implemented a voluntary waiver with respect to the income based incentive fee during the Waiver Period. The Adviser voluntarily waived its right to receive an income based incentive fee above 15% during the Waiver Period and amounts waived by the Adviser were not subject to recoupment by the Adviser.
The Company pays the Adviser an income based incentive fee based on its aggregate pre-incentive fee net investment income, as adjusted as described above, from the calendar quarter then ending and the eleven preceding calendar quarters (such period, the “Trailing Twelve Quarters”).
The hurdle amount for the income based incentive fee is determined on a quarterly basis and is equal to 1.5% multiplied by the Company’s NAV at the beginning of each applicable calendar quarter comprising the relevant Trailing Twelve Quarters. The hurdle amount is calculated after making appropriate adjustments for issuances by the Company of Common Shares, including issuances pursuant to its dividend reinvestment plan (“DRIP”) and distributions that occurred during the relevant Trailing Twelve Quarters. The income based incentive fee for any partial period will be appropriately prorated.
For the income based incentive fee, the Company will pay the Adviser a quarterly incentive fee based on the amount by which (A) aggregate pre-incentive fee net investment income in respect of the relevant Trailing Twelve Quarters exceeds (B) the hurdle amount for such Trailing Twelve Quarters. The amount of the excess of (A) over (B) described in this paragraph for such Trailing Twelve Quarters is referred to as the “Excess Income Amount”.
The income based incentive fee for each quarter will be determined as follows:
•No income based incentive fee is payable to the Adviser for any calendar quarter for which there is no Excess Income Amount.
•The Adviser will be paid 100% of the pre-incentive fee net investment income in respect of the Trailing Twelve Quarters, if any, that exceeds the hurdle amount for such Trailing Twelve Quarters, but is less than or equal to an amount, which we refer to as the “Catch-up Amount,” determined as the sum of 1.82% (7.27% annualized) (1.76% (7.06% annualized) during the Waiver Period), multiplied by the Company’s NAV at the beginning of each applicable calendar quarter comprising the relevant Trailing Twelve Quarters that is included in the calculation of the incentive fee based on income.
•The Adviser will be paid 17.5% (15% during the Waiver Period), of the pre-incentive fee net investment income in respect of the Trailing Twelve Quarters that exceeds the Catch-up Amount.
The amount of the income based incentive fee that will be paid to the Adviser for a particular quarter will equal the excess of (a) the income based incentive fee so calculated over (b) the aggregate income based incentive fee that was paid in respect of the first eleven calendar quarters included in the relevant Trailing Twelve Quarters subject to the Incentive Fee Cap as described below.
The income based incentive fee that will be paid to the Adviser for a particular quarter is subject to a cap (the “Incentive Fee Cap”). The Incentive Fee Cap for any quarter is an amount equal to (a) 17.5% (15% prior to the end of the Waiver Period), of the Cumulative Net Return (as defined below) during the relevant Trailing Twelve Quarters minus (b) the aggregate income based incentive fee that was paid in respect of the first eleven calendar quarters (or the portion thereof) included in the relevant Trailing Twelve Quarters.
“Cumulative Net Return” means (x) the pre-incentive fee net investment income in respect of the relevant Trailing Twelve Quarters minus (y) any Net Capital Loss (as defined below), if any, in respect of the relevant Trailing Twelve Quarters. If, in any quarter, the Incentive Fee Cap is zero or a negative value, the Company will pay no income based incentive fee to the Adviser for such quarter. If, in any quarter, the Incentive Fee Cap for such quarter is a positive value but is less than the income based incentive fee that is payable to the Adviser for such quarter (before giving effect to the Incentive Fee Cap) calculated as described above, the Company will pay an income based incentive fee to the Adviser equal to the Incentive Fee Cap for such quarter. If, in any quarter, the Incentive Fee Cap for such quarter is equal to or greater than the income based incentive fee that is payable to the Adviser for such quarter (before giving effect to the Incentive Fee Cap) calculated as described above, the Company will pay an income based incentive fee to the Adviser equal to the incentive fee calculated as described above for such quarter without regard to the Incentive Fee Cap.
“Net Capital Loss” in respect of a particular period means the difference, if positive, between (i) aggregate capital losses, whether realized or unrealized, in such period and (ii) aggregate capital gains, whether realized or unrealized, in such period.
These calculations are prorated for any period of less than three months and adjusted for any share issuances or repurchases during the relevant quarter. As the consummation of the IPO occurred on a date other than the first day of a calendar quarter, the income based incentive fee with respect to the Company’s pre-incentive fee net investment income was calculated for such calendar quarter at a weighted rate calculated based on the fee rates applicable before and after the consummation of the IPO based on the number of days in such calendar quarter before and after the consummation of the IPO. In no event will the amendments to the income based incentive fee include the incentive fee cap and allow the Adviser to receive greater cumulative income based incentive fees under the Investment Advisory Agreement than it would have under the prior investment advisory agreement. Amounts waived by the Adviser are not subject to recoupment by the Adviser.
(ii) Capital gains based incentive fee:
Starting from the completion of the IPO, the second part of the incentive fee, a capital gains incentive fee, is determined and payable in arrears as of the end of each calendar year in an amount equal to 17.5% of realized capital gains, if any, on a cumulative basis from inception through the end of each calendar year, computed net of all realized capital losses and unrealized capital depreciation on a cumulative basis, less the aggregate amount of any previously paid capital gain incentive fees as calculated in accordance with GAAP.
Prior to the IPO, the second part of the incentive fee, a capital gains incentive fee, was determined and payable in arrears as of the end of each calendar year in an amount equal to 15.0% of realized capital gains, if any, on a cumulative basis from inception through the end of each calendar year, computed net of all realized capital losses and unrealized capital depreciation on a cumulative basis, less the aggregate amount of any previously paid capital gain incentive fees as calculated in accordance with GAAP. However, similar to the voluntary waivers referenced above, the Adviser voluntarily waived its right to receive a capital gains based incentive fee above 15% from the date of consummation of the IPO through the Waiver Period. The Company will accrue, but will not pay, a capital gains incentive fee with respect to unrealized appreciation because a capital gains incentive fee would be owed to the Adviser if the Company were to sell the relevant investment and realize a capital gain. Amounts waived by the Adviser are not subject to recoupment by the Adviser.
For the three and six months ended June 30, 2024, the Company accrued income based incentive fees of $37.4 million and $73.2 million, respectively. For the three and six months ended June 30, 2023, the Company accrued income based incentive fees of $34.5 million and $64.9 million, respectively, of which $4.9 million and $9.3 million, respectively, were waived. The Waiver Period ended on October 28, 2023.
As of June 30, 2024 and December 31, 2023, $37.4 million and $34.4 million, respectively, was payable to the Adviser for income based incentive fees.
For the three and six months ended June 30, 2024, the Company accrued capital gains incentive fees of $3.1 million and $6.3 million, respectively. For the three and six months ended June 30, 2023, the Company reversed previously accrued capital gains incentive fee of $(3.9) million and $(5.5) million, respectively.
Administration Agreement
On October 1, 2018, the Company entered into an Administration Agreement with the Administrator. Under the terms of the Administration Agreement, the Administrator provides, or oversees the performance of, administrative and compliance services, including, but not limited to, maintaining financial records, overseeing the calculation of NAV, compliance monitoring (including diligence and oversight of the Company’s other service providers), preparing reports to shareholders and reports filed with the United States Securities and Exchange Commission (“SEC”), preparing materials and coordinating meetings of the Company’s Board, managing the payment of expenses and the performance of administrative and professional services rendered by others and providing office space, equipment and office services. The Administrator may also offer to provide, on the Company’s behalf, managerial assistance to the Company’s portfolio companies. The initial term of the agreement was two years from October 1, 2018. Unless earlier terminated, the Administration Agreement will renew automatically for successive annual periods, provided that such continuance is approved at least annually by (i) the vote of the Board or by a majority vote of the outstanding voting securities of the Company and (ii) the vote of a majority of the Independent Trustees. The Administration Agreement was most recently renewed and approved by the Board, including a majority of the Independent Trustees, on May 1, 2024, for a one-year period.
For providing these services, the Company will reimburse the Administrator for its costs, expenses and allocable portion of overhead (including rent, office equipment and utilities) and other expenses incurred by the Administrator in performing its administrative obligations under the Administration Agreement, including but not limited to: (i) the Company’s chief compliance officer, chief financial officer and their respective staffs; (ii) investor relations, legal, operations and other non-investment professionals (including information technology professionals) at the Administrator that perform duties for the Company; and (iii) any internal audit group personnel of Blackstone or any of its affiliates. The Administrator has elected to forgo any reimbursement for rent and other occupancy costs for the three and six months ended June 30, 2024 and 2023.
For the three and six months ended June 30, 2024, the Company incurred $0.8 million and $1.4 million, respectively, in expenses under the Administration Agreement, which were recorded in Administrative service expenses in the Company’s Condensed Consolidated Statements of Operations. For the three and six months ended June 30, 2023, the Company incurred $0.7 million and $1.1 million, respectively, in expenses under the Administration Agreement, which were recorded in Administrative service expenses in the Company’s Condensed Consolidated Statements of Operations.
As of June 30, 2024 and December 31, 2023, $0.9 million and $1.1 million, respectively, was unpaid and included in Due to affiliates in the Condensed Consolidated Statements of Assets and Liabilities.
Sub-Administration and Custody Agreement
On October 1, 2018, the Administrator entered into a sub-administration agreement (the “Sub-Administration Agreement”) with State Street Bank and Trust Company (the “Sub-Administrator”) under which the Sub-Administrator provides various accounting and administrative services to the Company. The Sub-Administrator also serves as the Company’s custodian (the “Custodian”). The initial term of the Sub-Administration Agreement is two years from the effective date and after expiration of the initial term and the Sub-Administration Agreement shall automatically renew for successive one-year periods, unless a written notice of non-renewal is delivered prior to 120 days prior to the expiration of the initial term or renewal term.
Expense Support and Conditional Reimbursement Agreement
On December 12, 2018, the Company entered into an Expense Support and Conditional Reimbursement Agreement (the “Expense Support Agreement”) with the Adviser pursuant to which the Adviser was able to elect to pay certain expenses of the Company on the Company’s behalf (each, an “Expense Payment”), provided that no portion of the payment was used to pay any interest of the Company. Any Expense Payment that the Adviser committed to pay was to be paid by the Adviser to the Company in any combination of cash or other immediately available funds no later than forty-five days after such commitment was made in writing, and/or offset against amounts due from the Company to the Adviser or its affiliates.
Pursuant to the Expense Support Agreement, following any calendar quarter in which Available Operating Funds (as defined below) exceeded the cumulative distributions accrued to the Company’s shareholders based on distributions declared with respect to record dates occurring in such calendar quarter (the “Excess Operating Funds”), the Company was required to pay such Excess Operating Funds, or a portion thereof, to the Adviser until such time as all Expense Payments made by the Adviser to the Company within three years prior to the last business day of such calendar quarter were reimbursed. Any payments required to be made by the Company to the Adviser are referred to herein as a “Reimbursement Payment”. Available Operating Funds means the sum of (i) the Company’s net investment company taxable income (including net short-term capital gains reduced by net long-term capital losses), (ii) the Company’s net capital gains (including the excess of net long-term capital gains over net short-term capital losses) and (iii) dividends and other distributions paid to the Company on account of investments in portfolio companies (to the extent such amounts listed in clause (iii) are not included under clauses (i) and (ii) above).
The Expense Support Agreement terminated by its own terms on October 28, 2021. The Company’s obligation to make Reimbursement Payments survived the termination of the Expense Support Agreement and may be made for a period of up to three years, in accordance with the terms of the Expense Support Agreement. The Company’s obligation to make a Reimbursement Payment becomes a liability of the Company on the last business day of the applicable calendar quarter. As of June 30, 2024 and 2023, there were no amounts subject to the Reimbursement Payment obligation.
As of June 30, 2024 and 2023, there were no unreimbursed Expense Payments remaining. For the three and six months ended June 30, 2024 and 2023, the Adviser made no Expense Payments and the Company made no Reimbursement Payments related to Expense Payments by the Adviser.
v3.24.2.u1
Investments
 6 Months Ended
Jun. 30, 2024
Schedule of Investments [Abstract]  
Investments Investments
The composition of the Company’s investment portfolio at cost and fair value was as follows:
June 30, 2024December 31, 2023
CostFair Value% of Total
Investments at
Fair Value		CostFair Value% of Total
Investments at
Fair Value
First lien debt$11,208,575 $11,141,918 98.6 %$9,817,402 $9,722,061 98.5 %
Second lien debt44,076 41,985 0.4 43,347 41,515 0.4 
Unsecured debt12,148 12,278 0.1 9,930 9,924 0.1 
Equity65,670 97,616 0.9 63,480 94,940 1.0 
Total$11,330,469 $11,293,797 100.0 %$9,934,159 $9,868,440 100.0 %
The industry composition of investments at fair value was as follows:
June 30, 2024December 31, 2023
Aerospace & Defense5.0 %5.2 %
Air Freight & Logistics3.6 4.2 
Auto Components (1)
0.0 — 
Building Products2.8 3.2 
Chemicals0.4 0.1 
Commercial Services & Supplies7.1 7.8 
Construction & Engineering0.5 0.5 
Containers & Packaging0.2 0.2 
Distributors5.1 5.7 
Diversified Consumer Services4.0 3.9 
Diversified Financial Services1.3 1.4 
Diversified Telecommunication Services1.2 1.4 
Electrical Equipment0.4 1.1 
June 30, 2024December 31, 2023
Electronic Equipment, Instruments & Components1.1 %1.3 %
Electric Utilities0.6 0.6 
Energy Equipment & Services0.2 0.4 
Ground Transportation— 0.2 
Health Care Equipment & Supplies0.7 0.6 
Health Care Providers & Services10.5 10.7 
Health Care Technology4.9 5.1 
Industrial Conglomerates0.1 0.1 
Insurance5.5 5.4 
Internet & Direct Marketing Retail2.8 3.2 
IT Services4.3 2.9 
Machinery (1)(2)
0.0 0.0 
Marine0.5 0.3 
Media0.6 0.1 
Oil, Gas & Consumable Fuels0.9 1.0 
Paper & Forest Products0.1 0.1 
Pharmaceuticals0.2 0.2 
Professional Services8.9 7.8 
Real Estate Management & Development0.9 0.9 
Software18.4 17.4 
Specialty Retail1.5 1.7 
Technology Hardware, Storage & Peripherals0.7 0.8 
Trading Companies & Distributors1.2 0.5 
Transportation Infrastructure3.8 4.0 
Total100.0 %100.0 %
(1)Amount rounds to less than 0.1% as of June 30, 2024
(2)Amount rounds to less than 0.1% as of December 31, 2023.
The geographic composition of investments at cost and fair value was as follows:
June 30, 2024
CostFair Value% of Total
Investments at
Fair Value		Fair Value
as % of Net
Assets
United States$10,439,866 $10,411,725 92.2 %193.0 %
Canada283,618 287,155 2.5 5.3 
Bermuda/Cayman Islands436 569 0.0 0.0 
Europe605,908 593,697 5.3 11.0 
Asia641 651 0.0 0.0 
Total$11,330,469 $11,293,797 100.0 %209.3 %
December 31, 2023
CostFair Value% of Total Investments at Fair ValueFair Value
 as % of Net
Assets
United States$9,381,707 $9,317,684 94.4 %188.2 %
Canada275,579 278,103 2.8 5.6 
Bermuda/Cayman Islands436 473 0.0 0.0 
Europe276,437 272,180 2.8 5.5 
Total$9,934,159 $9,868,440 100.0 %199.3 %
As of June 30, 2024 and December 31, 2023, two borrowers (across four loans) and one borrower (two loans) in the portfolio were on non-accrual status, respectively.
As of June 30, 2024 and December 31, 2023, on a fair value basis, 99.8% and 99.9%, respectively, of our performing debt investments bore interest at a floating rate and 0.2% and 0.1%, respectively, of our performing debt investments bore interest at a fixed rate.
v3.24.2.u1
Fair Value Measurements
 6 Months Ended
Jun. 30, 2024
Fair Value Disclosures [Abstract]  
Fair Value Measurements Fair Value Measurements
The following tables present the fair value hierarchy of financial instruments:
June 30, 2024
Level 1Level 2Level 3Total
First lien debt$— $165,951 $10,975,967 $11,141,918 
Second lien debt— — 41,985 41,985 
Unsecured debt— — 12,278 12,278 
Equity— — 97,616 97,616 
Total$— $165,951 $11,127,846 $11,293,797 
December 31, 2023
Level 1Level 2Level 3Total
First lien debt$— $157,858 $9,564,203 $9,722,061 
Second lien debt— — 41,515 41,515 
Unsecured debt— — 9,924 9,924 
Equity— — 94,940 94,940 
Total$— $157,858 $9,710,582 $9,868,440 
Within Investments at fair value, substantially all Equity investments are illiquid and privately negotiated in nature and are subject to contractual sale constraints or other restrictions pursuant to their respective governing or similar agreements.
The following tables present changes in the fair value of financial instruments for which Level 3 inputs were used to determine the fair value:
Three Months Ended June 30, 2024
First Lien 
Debt		Second Lien 
Debt		Unsecured DebtEquityTotal Investments
Fair value, beginning of period$10,178,311 $41,515 $11,859 $98,680 $10,330,365 
Purchases of investments906,014 501 413 3 906,931 
Proceeds from principal repayments and sales of investments(87,920)— — — (87,920)
Accretion of discount/(amortization of premium)9,227 23 11 — 9,261 
Net realized gain (loss)195 — — — 195 
Net change in unrealized appreciation (depreciation)21,574 (54)(5)(1,067)20,448 
Transfers into Level 3 (1)
— — — — — 
Transfers out of Level 3 (1)
(51,434)— — — (51,434)
Fair value, end of period$10,975,967 $41,985 $12,278 $97,616 $11,127,846 
   Net change in unrealized appreciation (depreciation) included in earnings related to financial instruments still held as of June 30, 2024 included in net change in unrealized appreciation (depreciation) on the Condensed Consolidated Statements of Operations
$21,185 $(54)$(5)$(1,067)$20,059 
Six Months Ended June 30, 2024
First Lien 
Debt		Second Lien 
Debt		Unsecured DebtEquityTotal Investments
Fair value, beginning of period$9,564,203 $41,515 $9,924 $94,940 $9,710,582 
Purchases of investments1,639,580 681 2,198 2,190 1,644,649 
Proceeds from principal repayments and sales of investments(272,398)— — — (272,398)
Accretion of discount/(amortization of premium)18,538 48 20 — 18,606 
Net realized gain (loss)623 — — — 623 
Net change in unrealized appreciation (depreciation)26,223 (259)136 486 26,586 
Transfers into Level 3 (1)
— — — — — 
Transfers out of Level 3 (1)
(802)— — — (802)
Fair value, end of period$10,975,967 $41,985 $12,278 $97,616 $11,127,846 
   Net change in unrealized appreciation (depreciation) included in earnings related to financial instruments still held as of June 30, 2024 included in net change in unrealized appreciation (depreciation) on the Condensed Consolidated Statements of Operations
$28,769 $(259)$130 $486 $29,126 
Three Months Ended June 30, 2023
First Lien 
Debt		Second Lien 
Debt		EquityTotal Investments
Fair value, beginning of period$9,225,290 $46,678 $154,521 $9,426,489 
Purchases of investments129,728 425 — 130,153 
Proceeds from principal repayments and sales of investments(414,400)(7,351)(43,850)(465,601)
Accretion of discount/(amortization of premium)20,635 35 — 20,670 
Net realized gain (loss)(7,972)(49)7,212 (809)
Net change in unrealized appreciation (depreciation)(18,512)348 (7,716)(25,880)
Transfers into Level 3 (1)
— — — — 
Transfers out of Level 3 (1)
— — — — 
Fair value, end of period$8,934,769 $40,086 $110,167 $9,085,022 
   Net change in unrealized appreciation (depreciation) included in earnings related to financial instruments still held as of June 30, 2023 included in net change in unrealized appreciation (depreciation) on the Condensed Consolidated Statements of Operations
$(13,715)$205 $(7,716)$(21,226)
Six Months Ended June 30, 2023
First Lien 
Debt		Second Lien 
Debt		EquityTotal Investments
Fair value, beginning of period$9,275,511 $46,336 $150,949 $9,472,796 
Purchases of investments242,609 836 — 243,445 
Proceeds from principal repayments and sales of investments(483,996)(7,350)(43,849)(535,195)
Accretion of discount/(amortization of premium)28,945 70 — 29,015 
Net realized gain (loss)(7,925)(49)7,212 (762)
Net change in unrealized appreciation (depreciation)(33,374)243 (4,145)(37,276)
Transfers into Level 3 (1)
4,938 — — 4,938 
Transfers out of Level 3 (1)
(91,939)— — (91,939)
Fair value, end of period$8,934,769 $40,086 $110,167 $9,085,022 
   Net change in unrealized appreciation (depreciation) included in earnings related to financial instruments still held as of June 30, 2023 included in net change in unrealized appreciation (depreciation) on the Condensed Consolidated Statements of Operations
$(33,078)$31 $(4,145)$(37,192)
(1)For the three and six months ended June 30, 2024 and 2023, transfers into or out of Level 3 were primarily due to decreased or increased price transparency.
The following tables present quantitative information about the significant unobservable inputs of the Company’s Level 3 financial instruments. These tables are not intended to be all-inclusive but instead capture the significant unobservable inputs relevant to the Company’s determination of fair value.
June 30, 2024
Range
Fair ValueValuation TechniqueUnobservable InputLowHigh
Weighted Average (1)
Investments in first lien debt$10,892,028 Yield AnalysisDiscount Rate7.83 %30.50 %10.31 %
76,835 Asset RecoverabilityMarket Multiple8.00x11.50x10.02x
7,104 Market QuotationsBroker quoted price99.7599.7599.75
10,975,967 
Investments in second lien debt41,985 Yield AnalysisDiscount Rate9.63 %15.28 %13.01 %
Investments in unsecured debt12,278 Yield AnalysisDiscount Rate12.87%13.96%13.82%
Investments in equity63,574 Market ApproachPerformance Multiple6.44x30.00x12.18x
27,210 Option Pricing Model Expected Volatility32.00 %55.00 %44.10 %
6,832 Yield AnalysisDiscount Rate11.88 %17.94 %14.43 %
97,616 
Total$11,127,846 
December 31, 2023
Range
Fair ValueValuation TechniqueUnobservable InputLowHigh
Weighted Average (1)
Investments in first lien debt$9,533,700 Yield AnalysisDiscount Rate7.68 %30.89 %10.31 %
30,503 Asset RecoverabilityMarket Multiple10.50x10.50x10.50x
9,564,203 
Investments in second lien debt41,515 Yield AnalysisDiscount Rate10.18 %14.38 %12.69 %
Investments in unsecured debt9,924 Yield AnalysisDiscount Rate14.90%14.90%14.90%
Investments in equity60,007 Market ApproachPerformance Multiple6.40x30.00x11.47x
28,531 Option Pricing ModelExpected Volatility32.00 %55.00 %42.86 %
6,402 Yield AnalysisDiscount Rate10.75 %17.92 %14.17 %
94,940 
Total$9,710,582 
(1)Weighted averages are calculated based on fair value of investments.
The significant unobservable input used in the yield analysis is the discount rate based on comparable market yields. The significant unobservable input used for market quotations are broker quoted prices provided by independent pricing services. The significant unobservable input used under the market approach is the Performance Multiple. Significant increases in discount rates would result in a significantly lower fair value measurement. Significant decreases in quoted prices or Performance Multiples would result in a significantly lower fair value measurement.
Financial Instruments Not Carried at Fair Value
Debt
The fair value of the Company’s SPV Financing Facilities (as defined in Note 7) and Revolving Credit Facility (as defined in Note 7), as of June 30, 2024 and December 31, 2023, approximates their carrying value as the credit facilities have variable interest based on selected short-term rates. These financial instruments would be categorized as Level 3 within the hierarchy.
The following table presents the fair value measurements of the Company's Unsecured Notes (as defined in Note 7) had they been accounted for at fair value. These financial instruments would be categorized as Level 3 within the hierarchy as of June 30, 2024 and December 31, 2023.
June 30, 2024December 31, 2023
Fair ValueFair Value
2026 Notes$768,048 $763,085 
New 2026 Notes648,214 643,814 
2027 Notes587,191 583,633 
2028 Notes570,187 561,129 
November 2027 Notes397,260 — 
Total$2,970,900 $2,551,661 
Other
As of June 30, 2024 and December 31, 2023, the carrying amounts of the Company’s other assets and liabilities approximate fair value. These financial instruments would be categorized as Level 3 within the hierarchy.
v3.24.2.u1
Derivatives
 6 Months Ended
Jun. 30, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Derivatives Derivatives
The Company enters into derivative financial instruments in the normal course of business to achieve certain risk management objectives, including managing its interest rate risk exposures.
The fair value of interest rate derivative contracts are included within Derivative assets at fair value and Derivative liabilities at fair value, respectively, in the Condensed Consolidated Statements of Assets and Liabilities.
The following table presents the aggregate notional amount and fair value hierarchy of the Company’s derivative financial instruments as of June 30, 2024:

June 30, 2024
Level 1Level 2Level 3Total Fair ValueNotional
Derivative Assets
Interest rate swaps$— $2,015 $— $2,015 $400,000 
Total Derivative assets at fair value$— $2,015 $— $2,015 $400,000 
Cash collateral received$— 
Derivative Liabilities
Interest rate swaps$— $— $— $— $— 
Total Derivative liabilities at fair value$— $— $— $— $— 
Cash collateral posted$1,770 

In the table above:
•The fair value of derivative assets and derivative liabilities is presented on a gross basis.
•The notional amount represents the absolute value amount of all outstanding derivative contracts.
•All interest rate swaps are designated in fair value hedge relationships.
The Company held no derivative financial instruments as of December 31, 2023.

Hedging
The Company designated certain interest rate swaps as the hedging instrument in a qualifying fair value hedge accounting relationship.
The table below presents the impact to the Condensed Consolidated Statements of Operations from derivative assets and liabilities designated in a qualifying hedge accounting relationship for the three and six month periods ended June 30, 2024 and June 30, 2023, respectively.
For derivative instruments designated in qualifying hedge relationships, the change in fair value of the hedging instrument and hedged item are recorded in Interest expense and recognized as components of Interest expense in the Condensed Consolidated Statements of Operations.
For the Three months ended June 30,For the Six months ended June 30,
2024202320242023
Interest rate swaps$2,015 $— $2,015 $— 
Hedged items(1,432)— (1,432)— 
The table below presents the carrying value of unsecured borrowings as of June 30, 2024 and December 31, 2023 that are designated in a qualifying hedging relationship and the related cumulative hedging adjustment (increase/(decrease)) from current and prior hedging relationships included in such carrying values:
June 30, 2024December 31, 2023
DescriptionCarrying ValueCumulative Hedging AdjustmentsCarrying ValueCumulative Hedging Adjustments
Unsecured notes$394,417 $1,432 $— $— 
v3.24.2.u1
Borrowings
 6 Months Ended
Jun. 30, 2024
Debt Disclosure [Abstract]  
Borrowings Borrowings
In accordance with the 1940 Act, with certain limitations, the Company is allowed to borrow amounts such that its asset coverage, as defined in the 1940 Act, is at least 150% after such borrowing. On September 25, 2018, the Company’s sole initial shareholder approved the adoption of this 150% threshold pursuant to Section 61(a)(2) of the 1940 Act. As of June 30, 2024 and December 31, 2023, the Company’s asset coverage was 188.3% and 200.3%, respectively.
SPV Financing Facilities
The following wholly-owned subsidiaries of the Company have entered into secured financing facilities, as described below: Jackson Hole Funding, Breckenridge Funding and Big Sky Funding which are collectively referred to as the “SPVs,” and such secured financing facilities described below are collectively referred to as the “SPV Financing Facilities”.
The obligations of each SPV to the lenders under the applicable SPV Financing Facility are secured by a first priority security interest in all of the applicable SPV’s portfolio investments and cash. The obligations of each SPV under the applicable SPV Financing Facility are non-recourse to the Company, and the Company’s exposure to the credit facility is limited to the value of its investment in the applicable SPV.
In connection with the SPV Financing Facilities, the applicable SPV has made certain customary representations and warranties and is required to comply with various covenants, reporting requirements and other customary requirements for similar facilities. Each SPV Financing Facility contains customary events of default for similar financing transactions, including if a change of control of the applicable SPV occurs. Upon the occurrence and during the continuation of an event of default, the lenders under the applicable SPV Financing Facility may declare the outstanding advances and all other obligations under the applicable SPV Financing Facility immediately due and payable. The occurrence of an event of default triggers a requirement that the applicable SPV obtain the consent of the lenders under the applicable SPV Financing Facility prior to entering into any sale or disposition with respect to portfolio investments.
As of June 30, 2024 and December 31, 2023, the Company was in compliance with all covenants and other requirements of each of the SPV Financing Facilities.
Jackson Hole Funding Facility
On November 16, 2018, Jackson Hole Funding, the Company’s wholly-owned subsidiary that holds primarily originated loan investments, entered into a senior secured revolving credit facility (which was subsequently amended and restated on December 16, 2021, and amended effective as of September 16, 2022, November 15, 2023 and December 18, 2023, and as further amended from time to time, the “Jackson Hole Funding Facility”) with JPMorgan Chase Bank, National Association (“JPM”). JPM serves as administrative agent, Citibank, N.A., serves as collateral agent and securities intermediary, Virtus Group, LP serves as collateral administrator and the Company serves as portfolio manager under the Jackson Hole Funding Facility.
Advances under the Jackson Hole Funding Facility bear interest at a per annum rate equal to the benchmark in effect for the currency of the applicable advances (which is the three-month Term SOFR for dollar advances), plus the applicable margin of 2.375% per annum for certain foreign currency advances to 2.525% per annum for dollar advances. Jackson Hole Funding pays a commitment fee of 0.48% per annum on the average daily unused amount of the financing commitments until November 28, 2025. Jackson Hole Funding also pays to JPM an administrative agency fee, in addition to certain other fees, each as agreed between Jackson Hole Funding and JPM.
The maximum commitment amount of the Jackson Hole Funding Facility as of June 30, 2024 was $500.0 million. The Jackson Hole Funding Facility has an accordion feature, subject to the satisfaction of various conditions, which could bring total commitments under the Jackson Hole Funding Facility to up to $900.0 million. Proceeds from borrowings under the Jackson Hole Funding Facility may be used to fund portfolio investments by Jackson Hole Funding and to make advances under delayed draw term loans where Jackson Hole Funding is a lender. The period during which Jackson Hole Funding may make borrowings under the Jackson Hole Funding Facility expires on November 28, 2025 and the Jackson Hole Funding Facility is scheduled to mature on May 17, 2027.
Breckenridge Funding Facility
On December 21, 2018, Breckenridge Funding, the Company’s wholly-owned subsidiary that holds primarily syndicated loan investments, entered into a senior secured revolving credit facility (which was subsequently amended on June 11, 2019, August 2, 2019, September 27, 2019, April 13, 2020, October 5, 2021, February 28, 2022, May 19, 2022, November 1, 2023 and January 17, 2024, and as further amended from time to time, the “Breckenridge Funding Facility”) with BNP Paribas (“BNP”). BNP serves as administrative agent, Wells Fargo Bank, National Association (“Wells Fargo”) serves as collateral agent and the Company serves as servicer under the Breckenridge Funding Facility.
Advances under the Breckenridge Funding Facility bear interest at a per annum rate equal to the three-month Term SOFR (or other base rate) in effect, plus an applicable margin of 1.70%, 2.05% or 2.30% per annum, as applicable, depending on the nature of the advances being requested under the facility. Breckenridge Funding pays a commitment fee of 0.70% per annum if the unused facility amount is greater than 50% or 0.35% per annum if the unused facility amount is less than or equal to 50% and greater than 25%, based on the average daily unused amount of the financing commitments until December 21, 2024, in addition to certain other fees as agreed between Breckenridge Funding and BNP.
Proceeds from borrowings under the Breckenridge Funding Facility may be used to fund portfolio investments by Breckenridge Funding and to make advances under delayed draw and revolving loans where Breckenridge Funding is a lender. The period during which Breckenridge Funding may make borrowings under the Breckenridge Funding Facility expires on December 21, 2024 and the Breckenridge Funding Facility is scheduled to mature on December 21, 2026.
Big Sky Funding Facility
On December 10, 2019, Big Sky Funding, the Company’s wholly-owned subsidiary, entered into a senior secured revolving credit facility (which was subsequently amended on December 30, 2020, September 30, 2021, amended and restated on June 29, 2022, amended on March 30, 2023, amended on June 25, 2024 and as further amended from time to time, the “Big Sky Funding Facility”) with Bank of America, N.A. (“Bank of America”). Bank of America serves as administrative agent, Wells Fargo serves as collateral administrator and the Company serves as manager under the Big Sky Funding Facility.
Advances under the Big Sky Funding Facility bear interest at a per annum rate equal to the one-month Term SOFR in effect, plus the applicable margin of (a) until September 25, 2024, 1.80% per annum, and (b) from and after September 25, 2024, a range between 2.10% and 2.45% per annum depending on the nature of the collateral securing the advances. Big Sky Funding is required to utilize a minimum percentage of 80% of the financing commitments. Unused amounts below such minimum utilization amount accrue a fee at a rate of 1.60% per annum. In addition, Big Sky Funding pays an unused fee of 0.45% per annum on the daily unused amount of the financing commitments in excess of the minimum utilization amount, commencing three months after the closing date of the Big Sky Funding Facility.
Proceeds from borrowings under the Big Sky Funding Facility may be used to fund portfolio investments by Big Sky Funding and to make advances under revolving loans or delayed draw term loans where Big Sky Funding is a lender. The period during which Big Sky Funding may make borrowings under the Big Sky Funding Facility expires on March 30, 2026 and the Big Sky Funding Facility is scheduled to mature on September 30, 2026.
Revolving Credit Facility
On June 15, 2020, the Company entered into a senior secured revolving credit facility (which was most recently amended on June 12, 2024, and as further amended from time to time, the “Revolving Credit Facility”) with Citibank, N.A. (“Citi”) serving as administrative agent and collateral agent.
The Revolving Credit Facility provides for borrowings in U.S. dollars and certain agreed upon foreign currencies. Borrowings under the Revolving Credit Facility are subject to compliance with a borrowing base. A portion of the Revolving Credit Facility consists of funded term loans in the aggregate principal amount of $385.0 million and the Revolving Credit Facility provides for the issuance of letters of credit on behalf of the Company in an aggregate face amount not to exceed $175.0 million. Proceeds from the borrowings under the Revolving Credit Facility may be used for general corporate purposes of the Company and its subsidiaries in the ordinary course of business. Availability of the revolver under the Revolving Credit Facility will terminate on June 28, 2027 (other than with respect to the foreign currency commitments of certain lenders in the amount of $200.0 million, which expire on June 28, 2026) and all amounts outstanding under the Revolving Credit Facility must be repaid by June 28, 2028 (other than with respect to the foreign currency commitments of certain lenders in the amount of $200.0 million, which mature on June 28, 2027) pursuant to an amortization schedule.
Loans under the Revolving Credit Facility bear interest at a per annum rate equal to, (x) for loans for which the Company elects the base rate option, the “alternate base rate” (which is the greatest of (a) the prime rate as publicly announced by Citi, (b) the sum of (i) the weighted average of the rates on overnight federal funds transactions with members of the Federal Reserve System plus (ii) 0.5% and (c) one month adjusted Term SOFR plus 1% per annum) plus (A) if the gross borrowing base is equal to or greater than 1.6 times the combined revolving debt amount, 0.75%, or (B) if the gross borrowing base is less than 1.6 times the combined revolving debt amount, 0.875%, and (y) for all other loans, the applicable benchmark rate for the related interest period for such borrowing plus (A) if the gross borrowing base is equal to or greater than 1.6 times the combined revolving debt amount, 1.75%, or (B) if the gross borrowing base is less than 1.6 times the combined revolving debt amount, 1.875%. The Company will pay an unused fee of 0.375% per annum on the daily unused amount of the revolver commitments. The Company will pay letter of credit participation fees and a fronting fee on the average daily amount of any lender’s exposure with respect to any letters of credit issued under the Revolving Credit Facility.
The Company’s obligations to the lenders under the Revolving Credit Facility are secured by a first priority security interest in substantially all of the Company’s assets.
In connection with the Revolving Credit Facility, the Company has made certain customary representations and warranties and is required to comply with various covenants, reporting requirements and other customary requirements for similar facilities. In addition, the Company must comply with the following financial covenants: (a) the Company must maintain a minimum shareholders’ equity, measured as of each fiscal quarter end; and (b) the Company must maintain at all times a 150% asset coverage ratio.
The Revolving Credit Facility contains customary events of default for similar financing transactions. Upon the occurrence and during the continuation of an event of default, Citi may terminate the commitments and declare the outstanding advances and all other obligations under the Revolving Credit Facility immediately due and payable.
As of June 30, 2024 and December 31, 2023, the Company was in compliance with all covenants and other requirements of the Revolving Credit Facility.
On August 6, 2024, the Revolving Credit Facility was amended. See “Note 12. Subsequent Events” for further detail on the amendment.
Unsecured Notes
The Company issued unsecured notes, as further described below: 2026 Notes, New 2026 Notes, 2027 Notes, 2028 Notes and November 2027 Notes (each as defined below) which are collectively referred to herein as the “Unsecured Notes”.
The Unsecured Notes contain certain covenants, including covenants requiring the Company to comply with the asset coverage requirements of Section 18(a)(1)(A) as modified by Section 61(a)(1) and (2) of the 1940 Act, whether or not it is subject to those requirements, and to provide financial information to the holders of the Unsecured Notes and the Trustee (as defined below) if the Company is no longer subject to the reporting requirements under the Exchange Act. These covenants are subject to important limitations and exceptions that are described in each respective indenture governing the Unsecured Notes (the “Unsecured Notes Indentures”).
In addition, on the occurrence of a “change of control repurchase event,” as defined in each respective Unsecured Notes Indenture, the Company will generally be required to make an offer to purchase the outstanding Unsecured Notes at a price equal to 100% of the principal amount of such Unsecured Notes plus accrued and unpaid interest to the repurchase date.
As of June 30, 2024 and December 31, 2023, the Company was in compliance with all covenants and other requirements of each of the Unsecured Notes.
2026 Notes
On October 23, 2020 and December 1, 2020, the Company issued $500.0 million aggregate principal amount and $300.0 million aggregate principal amount, respectively, of 3.625% notes due 2026 (the “2026 Notes”) pursuant to a supplemental indenture, dated as of October 23, 2020 (and together with the Base Indenture, the “2026 Notes Indenture”), to the Base Indenture between the Company and the Trustee.
The 2026 Notes will mature on January 15, 2026 and may be redeemed in whole or in part at the Company’s option at any time or from time to time at the redemption prices set forth in the 2026 Notes Indenture. The 2026 Notes bear interest at a rate of 3.625% per year payable semi-annually on January 15 and July 15 of each year, commencing on July 15, 2021. The 2026 Notes are general unsecured obligations of the Company that rank senior in right of payment to all of the Company's existing and future indebtedness that is expressly subordinated in right of payment to the 2026 Notes, rank pari passu with all existing and future unsecured unsubordinated indebtedness issued by the Company, rank effectively junior to any of the Company’s secured indebtedness (including unsecured indebtedness that the Company later secures) to the extent of the value of the assets securing such indebtedness, and rank structurally junior to all existing and future indebtedness (including trade payables) incurred by the Company's subsidiaries, financing vehicles or similar facilities.
New 2026 Notes
On March 16, 2021 and April 27, 2021, the Company issued $400.0 million aggregate principal amount and $300.0 million aggregate principal amount, respectively, of 2.750% notes due 2026 (the “New 2026 Notes”) pursuant to a supplemental indenture, dated as of March 16, 2021 (and together with the Base Indenture, the “New 2026 Notes Indenture”), to the Base Indenture between the Company and the Trustee.
The New 2026 Notes will mature on September 16, 2026 and may be redeemed in whole or in part at the Company’s option at any time or from time to time at the redemption prices set forth in the New 2026 Notes Indenture. The New 2026 Notes bear interest at a rate of 2.750% per year payable semi-annually on March 16 and September 16 of each year, commencing on September 16, 2021. The New 2026 Notes are general unsecured obligations of the Company that rank senior in right of payment to all of the Company’s existing and future indebtedness that is expressly subordinated in right of payment to the New 2026 Notes, rank pari passu with all existing and future unsecured unsubordinated indebtedness issued by the Company, rank effectively junior to any of the Company’s secured indebtedness (including unsecured indebtedness that the Company later secures) to the extent of the value of the assets securing such indebtedness, and rank structurally junior to all existing and future indebtedness (including trade payables) incurred by the Company’s subsidiaries, financing vehicles or similar facilities.
2027 Notes
On July 23, 2021, the Company issued $650.0 million aggregate principal amount of 2.125% notes due 2027 (the “2027 Notes”) pursuant to a supplemental indenture, dated as of July 23, 2021 (and together with the Base Indenture, the “2027 Notes Indenture”), to the Base Indenture between the Company and the Trustee.
The 2027 Notes will mature on February 15, 2027 and may be redeemed in whole or in part at the Company’s option at any time or from time to time at the redemption prices set forth in the 2027 Notes Indenture. The 2027 Notes bear interest at a rate of 2.125% per year payable semi-annually on February 15 and August 15 of each year, commencing on February 15, 2022. The 2027 Notes are general unsecured obligations of the Company that rank senior in right of payment to all of the Company’s existing and future indebtedness that is expressly subordinated in right of payment to the 2027 Notes, rank pari passu with all existing and future unsecured unsubordinated indebtedness issued by the Company, rank effectively junior to any of the Company’s secured indebtedness (including unsecured indebtedness that the Company later secures) to the extent of the value of the assets securing such indebtedness, and rank structurally junior to all existing and future indebtedness (including trade payables) incurred by the Company’s subsidiaries, financing vehicles or similar facilities.
2028 Notes
On September 30, 2021, the Company issued $650.0 million in aggregate principal amount of its 2.850% notes due 2028 (the “2028 Notes”) pursuant to a supplemental indenture, dated as of September 30, 2021 (and together with the Base Indenture, the “2028 Notes Indenture”), to the Base Indenture between the Company and the Trustee.
The 2028 Notes will mature on September 30, 2028 and may be redeemed in whole or in part at the Company’s option at any time or from time to time at the redemption prices set forth in the 2028 Notes Indenture. The 2028 Notes bear interest at a rate of 2.850% per year payable semi-annually on March 30 and September 30 of each year, commencing on March 30, 2022. The 2028 Notes are general unsecured obligations of the Company that rank senior in right of payment to all of the Company’s existing and future indebtedness that is expressly subordinated in right of payment to the 2028 Notes, rank pari passu with all existing and future unsecured unsubordinated indebtedness issued by the Company, rank effectively junior to any of the Company’s secured indebtedness (including unsecured indebtedness that the Company later secures) to the extent of the value of the assets securing such indebtedness, and rank structurally junior to all existing and future indebtedness (including trade payables) incurred by the Company’s subsidiaries, financing vehicles or similar facilities.
November 2027 Notes
On May 20, 2024, the Company issued $400.0 million in aggregate principal amount of its 5.875% notes due 2027 (the “November 2027 Notes”) pursuant to a supplemental indenture, dated as of May 20, 2024 (and together with the Base Indenture, the “November 2027 Notes Indenture”), to the Base Indenture between the Company and the Trustee.
The November 2027 Notes will mature on November 15, 2027 and may be redeemed in whole or in part at the Company’s option at any time or from time to time at the redemption prices set forth in the November 2027 Notes Indenture. The November 2027 Notes bear interest at a rate of 5.875% per year payable semi-annually on May 15 and November 15 of each year, commencing on November 15, 2024. The November 2027 Notes are general unsecured obligations of the Company that rank senior in right of payment to all of the Company’s existing and future indebtedness that is expressly subordinated in right of payment to the November 2027 Notes, rank pari passu with all existing and future unsecured unsubordinated indebtedness issued by the Company, rank effectively junior to any of the Company’s secured indebtedness (including unsecured indebtedness that the Company later secures) to the extent of the value of the assets securing such indebtedness, and rank structurally junior to all existing and future indebtedness (including trade payables) incurred by the Company’s subsidiaries, financing vehicles or similar facilities.
In connection with the November 2027 Notes, the Company entered into an interest rate swap to more closely align the interest rates of the Company’s liabilities with the investment portfolio, which consists of predominately floating rate loans. The Company designated this interest rate swap and the November 2027 Notes in a qualifying hedge accounting relationship.
The Company’s outstanding debt obligations were as follows:
June 30, 2024
Aggregate
Principal
Committed		Outstanding
Principal		Carrying
Value		Unamortized Debt Issuance Costs
Unused
Portion (1)
Amount
Available (2)
Jackson Hole Funding Facility (3)
$500,000 $399,874 $399,874 $— $100,126 $100,126 
Breckenridge Funding Facility1,025,000 768,350 768,350 — 256,650 256,650 
Big Sky Funding Facility500,000 400,000 400,000 — 100,000 100,000 
Revolving Credit Facility (4)
1,775,000 1,343,492 1,343,492 — 431,508 431,508 
2026 Notes800,000 800,000 797,236 2,764 — — 
New 2026 Notes700,000 700,000 696,088 3,912 — — 
2027 Notes650,000 650,000 642,782 7,218 — — 
2028 Notes
650,000 650,000 642,022 7,978 — — 
November 2027 Notes (5)
400,000 400,000 394,417 7,015 — — 
Total$7,000,000 $6,111,716 $6,084,261 $28,887 $888,284 $888,284 
(1)The unused portion is the amount upon which commitment fees, if any, are based.
(2)The amount available reflects any limitations related to each respective credit facility’s borrowing base.
(3)Under the Jackson Hole Funding Facility, the Company may borrow in U.S. dollars (USD) or certain other permitted currencies. As of June 30, 2024, the Company had no borrowings denominated in currencies other than USD.
(4)Under the Revolving Credit Facility, the Company may borrow in U.S. dollars or certain other permitted currencies. As of June 30, 2024, the Company had non-USD borrowings denominated in the following currencies:
•Canadian Dollars (CAD) 12.0 million
•Euros (EUR) 191.1 million
•British Pounds (GBP) 185.1 million
•Australian Dollar (AUD) 1.0 million
(5)Carrying value is inclusive of adjustment for the change in fair value of effective hedge relationship.
December 31, 2023
Aggregate
Principal
Committed		Outstanding
Principal		Carrying
Value		Unamortized Debt Issuance Costs
Unused
Portion (1)
Amount
Available (2)
Jackson Hole Funding Facility (3)
$500,000 $233,019 $233,019 $— $266,981 $266,981 
Breckenridge Funding Facility1,025,000 741,700 741,700 — 283,300 283,300 
Big Sky Funding Facility500,000 480,906 480,906 — 19,094 19,094 
Revolving Credit Facility (4)
1,775,000 682,258 682,258 — 1,092,742 1,092,662 
2026 Notes800,000 800,000 796,343 3,657 — — 
New 2026 Notes700,000 700,000 695,206 4,794 — — 
2027 Notes650,000 650,000 641,412 8,588 — — 
2028 Notes650,000 650,000 641,086 8,914 — — 
Total$6,600,000 $4,937,883 $4,911,930 $25,953 $1,662,117 $1,662,037 
(1)The unused portion is the amount upon which commitment fees, if any, are based.
(2)The amount available reflects any limitations related to each respective credit facility’s borrowing base.
(3)Under the Jackson Hole Funding Facility, the Company may borrow in U.S. dollars (USD) or certain other permitted currencies. As of December 31, 2023, the Company had no borrowings denominated in currencies other than USD.
(4)Under the Revolving Credit Facility, the Company may borrow in USD or certain other permitted currencies. As of December 31, 2023, the Company had non-USD borrowings denominated in the following currencies:
•Canadian Dollars (CAD) 1.0 million
•Euros (EUR) 94.4 million
•British Pounds (GBP) 66.9 million
As of June 30, 2024 and December 31, 2023, $43.5 million and $38.7 million, respectively, of interest expense and $0.8 million and $1.2 million, respectively, of unused commitment fees were included in interest payable. For the three and six months ended June 30, 2024, the weighted average interest rate (including unused fees and accretion of net discounts on unsecured debt) on all borrowings outstanding was 5.26% and 5.18%, respectively. For the three and six months ended June 30, 2023, the weighted average interest rate (including unused fees and accretion of net discounts on unsecured debt) on all borrowings outstanding was 4.84% and 4.80%, respectively.
For the three and six months ended June 30, 2024, the weighted average all-in cost of debt (including unused fees, accretion of net discounts on unsecured debt, amortization of deferred financing costs) was 5.38% and 5.31%, respectively. For the three and six months ended June 30, 2023, the weighted average all-in cost of debt (including unused fees, accretion of net discounts on unsecured debt, and amortization of deferred financing costs) was 4.96% and 4.91%, respectively.
For the three and six months ended June 30, 2024, the average principal debt outstanding was $5,798.8 million and $5,422.5 million, respectively. For the three and six months ended June 30, 2023, the average principal debt outstanding was $5,377.6 million and $5,497.8 million, respectively.
The components of interest expense were as follows:
Three months ended June 30,Six months ended June 30,
2024202320242023
Borrowing interest expense$74,511 $61,128 $135,676 $123,253 
Facility unused fees927 1,108 2,743 2,037 
Amortization of deferred financing costs1,705 1,334 3,403 2,459 
Amortization of original issue discount and debt issuance costs2,281 2,578 4,321 5,127 
Gain (loss) from interest rate swaps accounted for as hedges and the related hedged items:
Interest rate swaps(2,015)— (2,015)— 
Hedged items1,432 — 1,432 — 
Total Interest Expense$78,841 $66,148 $145,560 $132,876 
Cash paid for interest expense$61,034 $37,501 $133,658 $126,014 
v3.24.2.u1
Commitment and Contingencies
 6 Months Ended
Jun. 30, 2024
Commitments and Contingencies Disclosure [Abstract]  
Commitments and Contingencies Commitments and Contingencies
Portfolio Company Commitments
The Company’s investment portfolio contains debt investments which are in the form of lines of credit or delayed draw commitments, which require us to provide funding when requested by portfolio companies in accordance with underlying loan agreements. As of June 30, 2024 and December 31, 2023, the Company had unfunded commitments, including delayed draw term loans and revolvers, with an aggregate amount of $1,746.2 million and $985.9 million, respectively.
Additionally, from time to time, the Adviser and its affiliates may commit to an investment on behalf of the investment vehicles it manages, including the Company. Certain terms of these investments are not finalized at the time of the commitment and each respective investment vehicle’s allocation may change prior to the date of funding. In this regard, as of June 30, 2024 and December 31, 2023, the Company estimates that $260.6 million and $221.3 million, respectively, of investments that were committed but not yet funded.
Other Commitments and Contingencies
From time to time, the Company may become a party to certain legal proceedings incidental to the normal course of its business. At June 30, 2024 and December 31, 2023, management is not aware of any material pending legal proceedings.
v3.24.2.u1
Net Assets
 6 Months Ended
Jun. 30, 2024
Equity [Abstract]  
Net Assets Net Assets
Shares Issued
The Company has the authority to issue an unlimited number of Common Shares at $0.001 per share par value.
On October 28, 2021, the Company priced its IPO, issuing 9,180,000 of its Common Shares at a public offering price of $26.15 per share. Net of underwriting fees, the Company received cash proceeds, before offering expenses, of $230.6 million. On November 4, 2021, the underwriters exercised their option to purchase an additional 1,377,000 shares of Common Shares, which resulted in cash proceeds, before offering expenses, of $33.8 million. The Company’s Common Shares began trading on the NYSE under the symbol “BXSL” on October 28, 2021. In connection with the listing of the Company’s Common Shares on the NYSE, the Board decided to eliminate any outstanding fractional Common Shares (the “Fractional Shares”), as permitted by Delaware law by rounding down the number of Fractional Shares held by each of our shareholders to the nearest whole share and paying each shareholder cash for such Fractional Shares.
On August 14, 2023, the Company completed a follow-on offering under its shelf registration statement, issuing 6,500,000 of its Common Shares at a price to the underwriters of $26.78 per share. Net of underwriting fees, the Company received cash proceeds, before offering expenses, of $174.1 million. On August 18, 2023, the underwriters exercised, in full, their option to purchase an additional 975,000 shares of Common Shares, which resulted in cash proceeds, before offering expenses, of $26.1 million. The Company incurred offering expenses of $0.4 million in connection with the follow-on offering.
As of June 30, 2024, the Company is party to six separate equity distribution agreements with sales agents (“Equity Distribution Agreements”), pursuant to which the Company may sell, from time to time, up to an aggregate sales price of $500.0 million of its Common Shares. Sales of Common Shares made pursuant to the Equity Distribution Agreements may be made in negotiated transactions or transactions that are deemed to be “at-the-market” offerings as defined in Rule 415(a)(5) under the Securities Act of 1933, as amended. Actual sales depend on a variety of factors including market conditions, the trading price of the Company’s Common Shares, the Company’s capital needs, and the Company’s determination of the appropriate sources of funding to meet such needs. As of June 30, 2024, Common Shares with an aggregate sales price of $309.0 million remained available for issuance under the Equity Distribution Agreements.
The following table summarizes the total Common Shares issued and proceeds received, for the three months ended June 30, 2024, through the “at-the-market” offering program (dollars in thousands except share and per share amounts):
Issuances of Common SharesNumber of Common Shares IssuedGross ProceedsPlacement Fees/Offering Expenses
Net Proceeds (2)
Average Share Price (1)
“At-the-market” Offering6,333,768 $190,966 $831 $190,135 $30.02 
(1)Represents the net offering price per share after deducting placement fees and commissions and offering expenses.
(2)The Company received $1.9 million of proceeds subsequent to June 30, 2024 on July 1, 2024. The amount was recorded as Receivable for shares sold in the Condensed Consolidated Statement of Assets and Liabilities.
The following table summarizes the total Common Shares issued and proceeds received, for the six months ended June 30, 2024, through the “at-the-market” offering program (dollars in thousands except share and per share amounts):
Issuances of Common SharesNumber of Common Shares IssuedGross ProceedsPlacement Fees/Offering Expenses
Net Proceeds (2)
Average Share Price (1)
“At-the-market” Offering12,219,314 $353,693 $1,535 $352,158 $28.82 
(1)Represents the net offering price per share after deducting placement fees and commissions and offering expenses.
(2)The Company received $1.9 million of proceeds subsequent to June 30, 2024 on July 1, 2024. The amount was recorded as Receivable for shares sold in the Condensed Consolidated Statement of Assets and Liabilities.
The following table summarizes the total Common Shares issued and proceeds received, for the three and six months ended June 30, 2023, through the “at-the-market” offering program (dollars in thousands except share and per share amounts). No Common Shares were issued through the “at-the-market” offering program during the three months ended March 31, 2023.
Issuances of Common SharesNumber of Common Shares IssuedGross ProceedsPlacement Fees/Offering Expenses
Net Proceeds (2)
Average Share Price (1)
“At-the-market” Offering4,632,768 $125,339 $68 $125,271 $27.04 
(1)Represents the net offering price per share after deducting placement fees and commissions and offering expenses.
(2)The Company received $0.3 million of proceeds subsequent to June 30, 2023 on July 5, 2023. The amount was recorded as Receivable for shares sold in the Condensed Consolidated Statement of Assets and Liabilities.
Distributions
The following table summarizes the Company’s distributions declared and payable for the six months ended June 30, 2024 (dollars in thousands except per share amounts):
Date DeclaredRecord DatePayment DatePer Share AmountTotal Amount
February 28, 2024March 31, 2024April 26, 2024$0.7700 $147,743 
May 8, 2024June 30, 2024July 26, 20240.7700 152,706 
Total distributions$1.5400 $300,449 
The following table summarizes the Company’s distributions declared and payable for the six months ended June 30, 2023 (dollars in thousands except per share amounts):
Date DeclaredRecord DatePayment DatePer Share AmountTotal Amount
February 27, 2023March 31, 2023April 27, 2023$0.7000 $112,400 
May 10, 2023June 30, 2023July 27, 20230.7000 115,783 
Total distributions$1.4000 $228,183 
Dividend Reinvestment
The Company has adopted the DRIP, pursuant to which it reinvests all cash dividends declared by the Board on behalf of its shareholders who do not elect to receive their dividends in cash. As a result, if the Board and the Company declares a cash dividend or other distribution, then the Company’s shareholders who have not opted out of its dividend reinvestment plan will have their cash distributions automatically reinvested in additional shares as described below, rather than receiving the cash dividend or other distribution. Starting from the consummation of the IPO, the number of shares to be issued to a shareholder is determined by dividing the total dollar amount of the cash dividend or distribution payable to a shareholder by the market price per common share at the close of regular trading on the NYSE on the payment date of a distribution, or if no sale is reported for such day, the average of the reported bid and ask prices. However, if the market price per share on the payment date of a cash dividend or distribution exceeds the most recently computed NAV per share, the Company will issue shares at the greater of (i) the most recently computed NAV per share and (ii) 95% of the current market price per share (or such lesser discount to the current market price per share that still exceeded the most recently computed NAV per share). For example, if the most recently computed NAV per share is $25.00 and the market price on the payment date of a cash dividend is $24.00 per share, the Company will issue shares at $24.00 per share. If the most recently computed NAV per share is $25.00 and the market price on the payment date of a cash dividend is $27.00 per share, the Company will issue shares at $25.65 per share (95% of the current market price). If the most recently computed NAV per share is $25.00 and the market price on the payment date of a cash dividend is $26.00 per share, the Company will issue shares at $25.00 per share.
Shareholders who receive distributions in the form of shares will generally be subject to the same U.S. federal, state and local tax consequences as if they received cash distributions; however, since their cash distributions will be reinvested, those shareholders will not receive cash with which to pay any applicable taxes. The Company intends to use newly issued shares to implement the plan.
Pursuant to our dividend reinvestment plan, the following table summarizes the amounts and shares issued to shareholders who have not opted out of the Company’s DRIP during the six months ended June 30, 2024 (dollars in thousands except share amounts):
Payment DateDRIP Shares ValueDRIP Shares Issued
January 26, 2024$5,614 206,465 
April 26, 2024$5,293 173,614 
Total distributions$10,907 380,079 
The following table summarizes the amounts and shares issued to shareholders who have not opted out of the Company's DRIP during the six months ended June 30, 2023 (dollars in thousands except share amounts):
Payment DateDRIP Shares ValueDRIP Shares Issued
January 31, 2023$5,132 208,510 
April 27, 2023$5,439 213,130 
Total distributions$10,571 421,640 
Share Repurchase Plan
In February 2023, the Board approved a share repurchase plan, under which the Company was authorized to repurchase up to $250 million in the aggregate of its outstanding Common Shares in the open market at prices below the Company’s NAV per share for a one-year term, in accordance with the guidelines specified in Rule 10b-18 of the Exchange Act (the “10b-18 Plan”). The 10b-18 Plan was not renewed and terminated by its terms on February 22, 2024.
For the three and six months ended June 30, 2024 and 2023, the Company did not repurchase any of its shares under the 10b-18 Plan.
v3.24.2.u1
Earnings Per Share
 6 Months Ended
Jun. 30, 2024
Earnings Per Share [Abstract]  
Earnings Per Share Earnings Per Share
The following table sets forth the computation of basic and diluted earnings per share:
Three Months Ended June 30,Six Months Ended June 30,
2024202320242023
Net increase (decrease) in net assets resulting from operations$196,186 $144,850 $379,941 $283,648 
Weighted average shares outstanding (basic and diluted)193,908,352 161,079,263 192,254,100 160,792,160 
Earnings (loss) per common share (basic and diluted)$1.01 $0.90 $1.98 $1.76 
v3.24.2.u1
Financial Highlights and Senior Securities
 6 Months Ended
Jun. 30, 2024
Investment Company [Abstract]  
Financial Highlights and Senior Securities Financial Highlights and Senior Securities
The following are the financial highlights for the six months ended June 30, 2024 and 2023:
Six Months Ended June 30,
 20242023
Per Share Data (1):
Net asset value, beginning of period$26.66 $25.93 
Net investment income
1.76 1.99 
Net change in unrealized and realized gain (loss)
0.21 (0.22)
Net increase (decrease) in net assets resulting from operations1.97 1.77 
Distributions declared (2)
(1.54)(1.40)
Net increase (decrease) in net assets from capital share transactions0.10 — 
Total increase (decrease) in net assets0.53 0.37 
Net asset value, end of period$27.19 $26.30 
Shares outstanding, end of period198,381,800 165,417,269 
Total return based on NAV (3)
7.3 %6.9 %
Total return based on market value (4)
16.8 %29.1 %
Ratios:
Ratio of net expenses to average net assets (5)
11.1 %11.5 %
Ratio of net investment income to average net assets (5)
12.9 %14.6 %
Portfolio turnover rate2.6 %2.3 %
Supplemental Data:
Net assets, end of period$5,394,573$4,350,271
Asset coverage ratio188.3 %186.9 %
(1)The per share data was derived by using the weighted average shares outstanding during the period.
(2)The per share data for distributions was derived by using the actual shares outstanding at the date of the relevant transactions (refer to Note 9).
(3)Total return is calculated as the change in NAV per share during the period, plus distributions per share (assuming dividends and distributions are reinvested in accordance with the Company's dividend reinvestment plan) divided by the beginning NAV per share. Total return does not include sales load.
(4)Total return based on market value is calculated as the change in market value per share during the respective periods, taking into account distributions, if any, reinvested in accordance with the Company’s dividend reinvestment plan.
(5)Amounts are annualized except for expense support amounts relating to organizational costs and management fee and income based incentive fee waivers by the Adviser (refer to Note 3). For the six months ended June 30, 2024 and 2023, the ratio of total operating expenses to average net assets was 11.1% and 12.0%, respectively, on an annualized basis, excluding the effect of expense support/(recoupment) and management fee and income based incentive fee waivers by the Adviser which represented 0.0% and (0.5)%, respectively, of average net assets. The Waiver Period ended on October 28, 2023.
The following is information about the Company’s senior securities as of the dates indicated in the below table:
Class and Period
Total Amount Outstanding Exclusive of Treasury Securities(1)
Asset Coverage per Unit (2)
Involuntary Liquidating Preference per Unit(3)
Average Market Value per Unit(4)
Subscription Facility (5)
June 30, 2024$— $— —N/A
December 31, 2023— — —N/A
December 31, 2022— — —N/A
December 31, 2021— — —N/A
December 31, 2020— — —N/A
December 31, 2019119,752 2,151 —N/A
December 31, 2018— — —N/A
Class and Period
Total Amount Outstanding Exclusive of Treasury Securities(1)
Asset Coverage per Unit (2)
Involuntary Liquidating Preference per Unit(3)
Average Market Value per Unit(4)
Jackson Hole Funding Facility
June 30, 2024$399,874 $1,883 —N/A
December 31, 2023233,019 2,003 —N/A
December 31, 2022360,019 1,748 —N/A
December 31, 2021361,007 1,802 —N/A
December 31, 2020362,316 2,300 —N/A
December 31, 2019514,151 2,151 —N/A
December 31, 2018120,000 2,278 —N/A
Breckenridge Funding Facility
June 30, 2024768,350 1,883 —N/A
December 31, 2023741,700 2,003 —N/A
December 31, 2022825,000 1,748 —N/A
December 31, 2021568,680 1,802 —N/A
December 31, 2020569,000 2,300 —N/A
December 31, 2019820,311 2,151 —N/A
December 31, 201865,000 2,278 —N/A
Big Sky Funding facility
June 30, 2024400,000 1,883 —N/A
December 31, 2023480,906 2,003 —N/A
December 31, 2022499,606 1,748 —N/A
December 31, 2021499,606 1,802 —N/A
December 31, 2020200,346 2,300 —N/A
December 31, 2019— — —N/A
December 31, 2018— — —N/A
Revolving Credit Facility
June 30, 20241,343,492 1,883 —N/A
December 31, 2023682,258 2,003 —N/A
December 31, 2022678,378 1,748 —N/A
December 31, 2021915,035 1,802 —N/A
December 31, 2020182,901 2,300 —N/A
December 31, 2019— — —N/A
December 31, 2018— — —N/A
2023 Notes (6)
June 30, 2024— — —N/A
December 31, 2023— — —N/A
December 31, 2022400,000 1,748 —N/A
December 31, 2021400,000 1,802 —N/A
December 31, 2020400,000 2,300 —N/A
December 31, 2019— — —N/A
December 31, 2018— — —N/A
Class and Period
Total Amount Outstanding Exclusive of Treasury Securities(1)
Asset Coverage per Unit (2)
Involuntary Liquidating Preference per Unit(3)
Average Market Value per Unit(4)
2026 Notes
June 30, 2024$800,000 $1,883 —N/A
December 31, 2023800,000 2,003 —N/A
December 31, 2022800,000 1,748 —N/A
December 31, 2021800,000 1,802 —N/A
December 31, 2020800,000 2,300 —N/A
December 31, 2019— — —N/A
December 31, 2018— — —N/A
New 2026 Notes
June 30, 2024700,000 1,883 —N/A
December 31, 2023700,000 2,003 —N/A
December 31, 2022700,000 1,748 —N/A
December 31, 2021700,000 1,802 —N/A
December 31, 2020— — —N/A
December 31, 2019— — —N/A
December 31, 2018— — —N/A
2027 Notes
June 30, 2024650,000 1,883 —N/A
December 31, 2023650,000 2,003 —N/A
December 31, 2022650,000 1,748 —N/A
December 31, 2021650,000 1,802 —N/A
December 31, 2020— — —N/A
December 31, 2019— — —N/A
December 31, 2018— — —N/A
2028 Notes
June 30, 2024650,000 1,883 —N/A
December 31, 2023650,000 2,003 —N/A
December 31, 2022650,000 1,748 —N/A
December 31, 2021650,000 1,802 —N/A
December 31, 2020— — —N/A
December 31, 2019— — —N/A
December 31, 2018— — —N/A
November 2027 Notes
June 30, 2024400,000 1,883 —N/A
(1)Total amount of each class of senior securities outstanding at the end of the period presented.
(2)Asset coverage per unit is the ratio of the carrying value of our total assets, less all liabilities excluding indebtedness represented by senior securities in this table, to the aggregate amount of senior securities representing indebtedness. Asset coverage per unit is expressed in terms of dollar amounts per $1,000 of indebtedness and is calculated on a consolidated basis.
(3)The amount to which such class of senior security would be entitled upon our involuntary liquidation in preference to any security junior to it. The “-” in this column indicates information that the SEC expressly does not require to be disclosed for certain types of senior securities.
(4)Not applicable because the senior securities are not registered for public trading.
(5)The Subscription Facility was terminated on November 3, 2020.
(6)The 2023 Notes matured on July 14, 2023 and were paid off consistent with the terms of the 2023 Notes Indenture.
v3.24.2.u1
Subsequent Events
 6 Months Ended
Jun. 30, 2024
Subsequent Events [Abstract]  
Subsequent Events Subsequent Events
The Company’s management evaluated subsequent events through the date of issuance of the condensed consolidated financial statements. There have been no subsequent events that occurred during such period that would require disclosure in, or would be required to be recognized in the condensed consolidated financial statements as of June 30, 2024, except as discussed below.
On August 7, 2024, the Board declared a distribution of $0.77 per share to shareholders of record as of September 30, 2024, which is payable on or about October 25, 2024.
Revolving Credit Facility Amendment
On August 6, 2024, the Company entered into an amendment (the “Revolver Amendment”) to the Revolving Credit Facility, which will become effective on or around August 12, 2024, subject to the satisfaction of certain conditions including the making of specified payments, among the Company, as borrower, each of the lenders from time to time party thereto and Citibank, N.A., as administrative agent. The Revolver Amendment provides for, among other things, (a) increasing the aggregate committed principal from $1.775 billion to $2.075 billion, which is comprised of (i) revolving commitments in an aggregate amount of $1.6865 billion and (ii) funded term loans in an aggregate principal amount of $388.5 million, (b) an extension of the period during which the Company may make borrowings on the Revolving Credit Facility from June 2027 to August 2028 (other than with respect to the revolving commitments of certain lenders in the amount of $200.0 million, which expire on June 28, 2026), (c) an extension of the scheduled maturity date of the Revolving Credit Facility from June 2028 to August 2029 (other than with respect to the revolving commitments of certain lenders in the amount of $200.0 million, which mature on June 28, 2027), (d) resetting the minimum shareholders’ equity test, (e) adding a step down of the interest for the borrowings under the Revolving Credit Facility (other than with respect to borrowings of certain lenders with revolving commitments in the amount of $200.0 million) to (i) for loans for which the Company elects the base rate option, the alternate base rate plus (A) if the gross borrowing base is equal to or greater than 2.0 times the combined revolving debt amount, 0.525%, (B) if the gross borrowing base is less than 2.0 times and is equal to or greater than 1.6 times the combined revolving debt amount, 0.650% or (C) if the gross borrowing base is less than 1.6 times the combined revolving debt amount, 0.775%, and (ii) for all other loans, the applicable benchmark rate for the related Interest Period for such Borrowing plus (A) if the gross borrowing base is equal to or greater than 2.0 times the combined revolving debt amount, 1.525%, (B) if the gross borrowing base is less than 2.0 times and is equal to or greater than 1.6 times the combined revolving debt amount, 1.650% or (C) if the gross borrowing base is less than 1.6 times the combined revolving debt amount, 1.775% and (f) decreasing the unused fee for the revolving commitments (other than with respect to the revolving commitments of certain lenders in the amount of $200.0 million) from 0.375% to 0.325%.
v3.24.2.u1
N-2 - USD ($)
$ / shares in Units, $ in Thousands
 6 Months Ended
Jun. 30, 2024
Dec. 31, 2023
Jun. 30, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Cover [Abstract]                
Entity Central Index Key 0001736035              
Amendment Flag false              
Securities Act File Number 814-01299              
Document Type 10-Q              
Entity Registrant Name Blackstone Secured Lending Fund              
Entity Address, Address Line One 345 Park Avenue              
Entity Address, Address Line Two 31st Floor              
Entity Address, City or Town New York              
Entity Address, State or Province NY              
Entity Address, Postal Zip Code 10154              
City Area Code 212              
Local Phone Number 503-2100              
Entity Emerging Growth Company false              
Financial Highlights [Abstract]                
Senior Securities [Table Text Block]
The following is information about the Company’s senior securities as of the dates indicated in the below table:
Class and Period
Total Amount Outstanding Exclusive of Treasury Securities(1)
Asset Coverage per Unit (2)
Involuntary Liquidating Preference per Unit(3)
Average Market Value per Unit(4)
Subscription Facility (5)
June 30, 2024$— $— —N/A
December 31, 2023— — —N/A
December 31, 2022— — —N/A
December 31, 2021— — —N/A
December 31, 2020— — —N/A
December 31, 2019119,752 2,151 —N/A
December 31, 2018— — —N/A
Class and Period
Total Amount Outstanding Exclusive of Treasury Securities(1)
Asset Coverage per Unit (2)
Involuntary Liquidating Preference per Unit(3)
Average Market Value per Unit(4)
Jackson Hole Funding Facility
June 30, 2024$399,874 $1,883 —N/A
December 31, 2023233,019 2,003 —N/A
December 31, 2022360,019 1,748 —N/A
December 31, 2021361,007 1,802 —N/A
December 31, 2020362,316 2,300 —N/A
December 31, 2019514,151 2,151 —N/A
December 31, 2018120,000 2,278 —N/A
Breckenridge Funding Facility
June 30, 2024768,350 1,883 —N/A
December 31, 2023741,700 2,003 —N/A
December 31, 2022825,000 1,748 —N/A
December 31, 2021568,680 1,802 —N/A
December 31, 2020569,000 2,300 —N/A
December 31, 2019820,311 2,151 —N/A
December 31, 201865,000 2,278 —N/A
Big Sky Funding facility
June 30, 2024400,000 1,883 —N/A
December 31, 2023480,906 2,003 —N/A
December 31, 2022499,606 1,748 —N/A
December 31, 2021499,606 1,802 —N/A
December 31, 2020200,346 2,300 —N/A
December 31, 2019— — —N/A
December 31, 2018— — —N/A
Revolving Credit Facility
June 30, 20241,343,492 1,883 —N/A
December 31, 2023682,258 2,003 —N/A
December 31, 2022678,378 1,748 —N/A
December 31, 2021915,035 1,802 —N/A
December 31, 2020182,901 2,300 —N/A
December 31, 2019— — —N/A
December 31, 2018— — —N/A
2023 Notes (6)
June 30, 2024— — —N/A
December 31, 2023— — —N/A
December 31, 2022400,000 1,748 —N/A
December 31, 2021400,000 1,802 —N/A
December 31, 2020400,000 2,300 —N/A
December 31, 2019— — —N/A
December 31, 2018— — —N/A
Class and Period
Total Amount Outstanding Exclusive of Treasury Securities(1)
Asset Coverage per Unit (2)
Involuntary Liquidating Preference per Unit(3)
Average Market Value per Unit(4)
2026 Notes
June 30, 2024$800,000 $1,883 —N/A
December 31, 2023800,000 2,003 —N/A
December 31, 2022800,000 1,748 —N/A
December 31, 2021800,000 1,802 —N/A
December 31, 2020800,000 2,300 —N/A
December 31, 2019— — —N/A
December 31, 2018— — —N/A
New 2026 Notes
June 30, 2024700,000 1,883 —N/A
December 31, 2023700,000 2,003 —N/A
December 31, 2022700,000 1,748 —N/A
December 31, 2021700,000 1,802 —N/A
December 31, 2020— — —N/A
December 31, 2019— — —N/A
December 31, 2018— — —N/A
2027 Notes
June 30, 2024650,000 1,883 —N/A
December 31, 2023650,000 2,003 —N/A
December 31, 2022650,000 1,748 —N/A
December 31, 2021650,000 1,802 —N/A
December 31, 2020— — —N/A
December 31, 2019— — —N/A
December 31, 2018— — —N/A
2028 Notes
June 30, 2024650,000 1,883 —N/A
December 31, 2023650,000 2,003 —N/A
December 31, 2022650,000 1,748 —N/A
December 31, 2021650,000 1,802 —N/A
December 31, 2020— — —N/A
December 31, 2019— — —N/A
December 31, 2018— — —N/A
November 2027 Notes
June 30, 2024400,000 1,883 —N/A
(1)Total amount of each class of senior securities outstanding at the end of the period presented.
(2)Asset coverage per unit is the ratio of the carrying value of our total assets, less all liabilities excluding indebtedness represented by senior securities in this table, to the aggregate amount of senior securities representing indebtedness. Asset coverage per unit is expressed in terms of dollar amounts per $1,000 of indebtedness and is calculated on a consolidated basis.
(3)The amount to which such class of senior security would be entitled upon our involuntary liquidation in preference to any security junior to it. The “-” in this column indicates information that the SEC expressly does not require to be disclosed for certain types of senior securities.
(4)Not applicable because the senior securities are not registered for public trading.
(5)The Subscription Facility was terminated on November 3, 2020.
(6)The 2023 Notes matured on July 14, 2023 and were paid off consistent with the terms of the 2023 Notes Indenture.
              
General Description of Registrant [Abstract]                
Investment Objectives and Practices [Text Block]
Our investment objectives are to generate current income and, to a lesser extent, long-term capital appreciation.
Under normal market conditions, we generally invest at least 80% of our total assets (net assets plus borrowings for investment purposes) in secured debt investments and our portfolio is composed primarily of first lien senior secured and unitranche loans. To a lesser extent, we have and may continue to also invest in second lien, third lien, unsecured or subordinated loans and other debt and equity securities. In limited instances we may retain the “last out” portion of a first-lien loan. In such cases, the “first out” portion of the first lien loan would receive priority with respect to payment over our “last out” position. In exchange for the higher risk of loss associated with such “last out” portion, we would earn a higher rate of interest than the “first out” position. We do not currently focus on investments in issuers that are distressed or in need of rescue financing.
Financial Condition, Liquidity and Capital Resources
Our liquidity and capital resources are generated primarily from cash flows from interest, dividends and fees earned from our investments and principal repayments, our credit facilities, debt securitization transactions, and other secured and unsecured debt. We may also generate cash flow from operations, future borrowings and future offerings of securities including public and/or private issuances of debt and/or equity securities through both registered offerings and private offerings. The primary uses of our cash and cash equivalents are for (i) originating loans and purchasing senior secured debt investments, (ii) funding the costs of our operations (including fees paid to our Adviser and expense reimbursements paid to our Administrator), (iii) debt service, repayment and other financing costs of our borrowings and (iv) cash distributions to the holders of our shares.
To facilitate public issuances of debt and/or equity securities, in July 2022, we filed a shelf registration statement with the SEC that is effective for a term of three years and expires in July 2025. The amount of securities to be issued pursuant to the shelf registration statement filed in July 2022 was not specified when it was filed and there is no specific dollar limit on the amount of securities we may issue. The securities covered by the registration statement filed in July 2022 include: (i) Common Shares; (ii) preferred shares; (iii) debt securities; (iv) subscription rights; and (v) warrants. The specifics of any future offerings, along with the use of proceeds of any securities offered, will be described in detail in a prospectus supplement, or other offering materials, at the time of any offering.
As of June 30, 2024 and December 31, 2023, our debt consisted of asset based leverage facilities, a revolving credit facility, and unsecured note issuances. We may from time to time enter into additional credit facilities, increase the size of our existing credit facilities or issue further debt securities. Any such incurrence or issuance would be subject to prevailing market conditions, our liquidity requirements, contractual and regulatory restrictions and other factors. In accordance with the 1940 Act, with certain limited exceptions, we are only allowed to incur borrowings, issue debt securities or issue preferred stock, if immediately after the borrowing or issuance, the ratio of total assets (less total liabilities other than indebtedness) to total indebtedness plus preferred stock, is at least 150%. As of June 30, 2024 and December 31, 2023, we had an aggregate amount of $6,111.7 million and $4,937.9 million of senior securities outstanding, respectively, and our asset coverage ratio was 188.3% and 200.3%, respectively. We seek to carefully consider our unfunded commitments for the purpose of planning our ongoing financial leverage. Further, we maintain sufficient borrowing capacity within the 150% asset coverage limitation to cover any outstanding unfunded commitments we are required to fund. From time to time we may also repurchase our outstanding debt. Such repurchases, if any, will depend on prevailing market conditions, our liquidity requirements, contractual restrictions, and other factors. The amounts involved in any such purchase transactions, individually or in the aggregate, may be material.
Cash and cash equivalents as of June 30, 2024, taken together with our $888.3 million of unused capacity under our credit facilities (subject to borrowing base availability, $888.3 million is available to borrow) is expected to be sufficient for our investing activities and to conduct our operations in the near term. Additionally, we held $166.0 million of Level 2 debt investments as of June 30, 2024, which could provide additional liquidity if necessary.
Although we have historically been able to obtain sufficient borrowing capacity, a deterioration in economic conditions or any other negative economic developments could restrict our access to financing in the future. We may not be able to find new financing for future investments or liquidity needs and, even if we are able to obtain such financing, such financing may not be on as favorable terms as we have previously obtained. These factors may limit our ability to make new investments and adversely impact our results of operations.
As of June 30, 2024, we had $291.3 million in cash and cash equivalents. During the six months ended June 30, 2024, cash used in operating activities was $1,104.7 million, primarily due to purchases of investments of $1,609.8 million partially offset by sales of investments and principal repayments of $276.1 million and receipt of interest payments from our investments. Cash provided by financing activities was $1,241.1 million during the period, which was primarily as a result of net borrowings on our credit facilities and Unsecured Notes of $1,171.8 million and $350.2 million of proceeds from the issuance of our Common Shares partially offset by dividends paid in cash of $279.9 million.
              
Risk Factors [Table Text Block]
Financial Condition, Liquidity and Capital Resources
Our liquidity and capital resources are generated primarily from cash flows from interest, dividends and fees earned from our investments and principal repayments, our credit facilities, debt securitization transactions, and other secured and unsecured debt. We may also generate cash flow from operations, future borrowings and future offerings of securities including public and/or private issuances of debt and/or equity securities through both registered offerings and private offerings. The primary uses of our cash and cash equivalents are for (i) originating loans and purchasing senior secured debt investments, (ii) funding the costs of our operations (including fees paid to our Adviser and expense reimbursements paid to our Administrator), (iii) debt service, repayment and other financing costs of our borrowings and (iv) cash distributions to the holders of our shares.
To facilitate public issuances of debt and/or equity securities, in July 2022, we filed a shelf registration statement with the SEC that is effective for a term of three years and expires in July 2025. The amount of securities to be issued pursuant to the shelf registration statement filed in July 2022 was not specified when it was filed and there is no specific dollar limit on the amount of securities we may issue. The securities covered by the registration statement filed in July 2022 include: (i) Common Shares; (ii) preferred shares; (iii) debt securities; (iv) subscription rights; and (v) warrants. The specifics of any future offerings, along with the use of proceeds of any securities offered, will be described in detail in a prospectus supplement, or other offering materials, at the time of any offering.
As of June 30, 2024 and December 31, 2023, our debt consisted of asset based leverage facilities, a revolving credit facility, and unsecured note issuances. We may from time to time enter into additional credit facilities, increase the size of our existing credit facilities or issue further debt securities. Any such incurrence or issuance would be subject to prevailing market conditions, our liquidity requirements, contractual and regulatory restrictions and other factors. In accordance with the 1940 Act, with certain limited exceptions, we are only allowed to incur borrowings, issue debt securities or issue preferred stock, if immediately after the borrowing or issuance, the ratio of total assets (less total liabilities other than indebtedness) to total indebtedness plus preferred stock, is at least 150%. As of June 30, 2024 and December 31, 2023, we had an aggregate amount of $6,111.7 million and $4,937.9 million of senior securities outstanding, respectively, and our asset coverage ratio was 188.3% and 200.3%, respectively. We seek to carefully consider our unfunded commitments for the purpose of planning our ongoing financial leverage. Further, we maintain sufficient borrowing capacity within the 150% asset coverage limitation to cover any outstanding unfunded commitments we are required to fund. From time to time we may also repurchase our outstanding debt. Such repurchases, if any, will depend on prevailing market conditions, our liquidity requirements, contractual restrictions, and other factors. The amounts involved in any such purchase transactions, individually or in the aggregate, may be material.
Cash and cash equivalents as of June 30, 2024, taken together with our $888.3 million of unused capacity under our credit facilities (subject to borrowing base availability, $888.3 million is available to borrow) is expected to be sufficient for our investing activities and to conduct our operations in the near term. Additionally, we held $166.0 million of Level 2 debt investments as of June 30, 2024, which could provide additional liquidity if necessary.
Although we have historically been able to obtain sufficient borrowing capacity, a deterioration in economic conditions or any other negative economic developments could restrict our access to financing in the future. We may not be able to find new financing for future investments or liquidity needs and, even if we are able to obtain such financing, such financing may not be on as favorable terms as we have previously obtained. These factors may limit our ability to make new investments and adversely impact our results of operations.
As of June 30, 2024, we had $291.3 million in cash and cash equivalents. During the six months ended June 30, 2024, cash used in operating activities was $1,104.7 million, primarily due to purchases of investments of $1,609.8 million partially offset by sales of investments and principal repayments of $276.1 million and receipt of interest payments from our investments. Cash provided by financing activities was $1,241.1 million during the period, which was primarily as a result of net borrowings on our credit facilities and Unsecured Notes of $1,171.8 million and $350.2 million of proceeds from the issuance of our Common Shares partially offset by dividends paid in cash of $279.9 million.
Item 3. Quantitative and Qualitative Disclosures About Market Risk.
Uncertainty with respect to the economic conditions has introduced significant volatility in the financial markets, and the effect of the volatility could materially impact our market risks. We are subject to financial market risks, including valuation risk and interest rate risk. Our exposure to valuation risk has not materially changed from what was previously disclosed in our Annual Report on Form 10-K for the fiscal year ended December 31, 2023.
Interest Rate Risk
Interest rate sensitivity refers to the change in earnings that may result from changes in the level of interest rates. We intend to fund portions of our investments with borrowings, and at such time, our net investment income will be affected by the difference between the rate at which we invest and the rate at which we borrow. Accordingly, we cannot assure shareholders that a significant change in market interest rates will not have a material adverse effect on our net investment income.
In a prolonged low interest rate environment, the difference between the total interest income earned on interest earning assets and the total interest expense incurred on interest bearing liabilities may be compressed, reducing our net income and potentially adversely affecting our operating results. Conversely, in a rising interest rate environment, such difference could potentially increase thereby increasing our net income as indicated per the table below.
              
Effects of Leverage [Text Block]
Financial Condition, Liquidity and Capital Resources
Our liquidity and capital resources are generated primarily from cash flows from interest, dividends and fees earned from our investments and principal repayments, our credit facilities, debt securitization transactions, and other secured and unsecured debt. We may also generate cash flow from operations, future borrowings and future offerings of securities including public and/or private issuances of debt and/or equity securities through both registered offerings and private offerings. The primary uses of our cash and cash equivalents are for (i) originating loans and purchasing senior secured debt investments, (ii) funding the costs of our operations (including fees paid to our Adviser and expense reimbursements paid to our Administrator), (iii) debt service, repayment and other financing costs of our borrowings and (iv) cash distributions to the holders of our shares.
To facilitate public issuances of debt and/or equity securities, in July 2022, we filed a shelf registration statement with the SEC that is effective for a term of three years and expires in July 2025. The amount of securities to be issued pursuant to the shelf registration statement filed in July 2022 was not specified when it was filed and there is no specific dollar limit on the amount of securities we may issue. The securities covered by the registration statement filed in July 2022 include: (i) Common Shares; (ii) preferred shares; (iii) debt securities; (iv) subscription rights; and (v) warrants. The specifics of any future offerings, along with the use of proceeds of any securities offered, will be described in detail in a prospectus supplement, or other offering materials, at the time of any offering.
As of June 30, 2024 and December 31, 2023, our debt consisted of asset based leverage facilities, a revolving credit facility, and unsecured note issuances. We may from time to time enter into additional credit facilities, increase the size of our existing credit facilities or issue further debt securities. Any such incurrence or issuance would be subject to prevailing market conditions, our liquidity requirements, contractual and regulatory restrictions and other factors. In accordance with the 1940 Act, with certain limited exceptions, we are only allowed to incur borrowings, issue debt securities or issue preferred stock, if immediately after the borrowing or issuance, the ratio of total assets (less total liabilities other than indebtedness) to total indebtedness plus preferred stock, is at least 150%. As of June 30, 2024 and December 31, 2023, we had an aggregate amount of $6,111.7 million and $4,937.9 million of senior securities outstanding, respectively, and our asset coverage ratio was 188.3% and 200.3%, respectively. We seek to carefully consider our unfunded commitments for the purpose of planning our ongoing financial leverage. Further, we maintain sufficient borrowing capacity within the 150% asset coverage limitation to cover any outstanding unfunded commitments we are required to fund. From time to time we may also repurchase our outstanding debt. Such repurchases, if any, will depend on prevailing market conditions, our liquidity requirements, contractual restrictions, and other factors. The amounts involved in any such purchase transactions, individually or in the aggregate, may be material.
Cash and cash equivalents as of June 30, 2024, taken together with our $888.3 million of unused capacity under our credit facilities (subject to borrowing base availability, $888.3 million is available to borrow) is expected to be sufficient for our investing activities and to conduct our operations in the near term. Additionally, we held $166.0 million of Level 2 debt investments as of June 30, 2024, which could provide additional liquidity if necessary.
Although we have historically been able to obtain sufficient borrowing capacity, a deterioration in economic conditions or any other negative economic developments could restrict our access to financing in the future. We may not be able to find new financing for future investments or liquidity needs and, even if we are able to obtain such financing, such financing may not be on as favorable terms as we have previously obtained. These factors may limit our ability to make new investments and adversely impact our results of operations.
As of June 30, 2024, we had $291.3 million in cash and cash equivalents. During the six months ended June 30, 2024, cash used in operating activities was $1,104.7 million, primarily due to purchases of investments of $1,609.8 million partially offset by sales of investments and principal repayments of $276.1 million and receipt of interest payments from our investments. Cash provided by financing activities was $1,241.1 million during the period, which was primarily as a result of net borrowings on our credit facilities and Unsecured Notes of $1,171.8 million and $350.2 million of proceeds from the issuance of our Common Shares partially offset by dividends paid in cash of $279.9 million.
              
Share Price [Table Text Block]
Financial Condition, Liquidity and Capital Resources
Our liquidity and capital resources are generated primarily from cash flows from interest, dividends and fees earned from our investments and principal repayments, our credit facilities, debt securitization transactions, and other secured and unsecured debt. We may also generate cash flow from operations, future borrowings and future offerings of securities including public and/or private issuances of debt and/or equity securities through both registered offerings and private offerings. The primary uses of our cash and cash equivalents are for (i) originating loans and purchasing senior secured debt investments, (ii) funding the costs of our operations (including fees paid to our Adviser and expense reimbursements paid to our Administrator), (iii) debt service, repayment and other financing costs of our borrowings and (iv) cash distributions to the holders of our shares.
To facilitate public issuances of debt and/or equity securities, in July 2022, we filed a shelf registration statement with the SEC that is effective for a term of three years and expires in July 2025. The amount of securities to be issued pursuant to the shelf registration statement filed in July 2022 was not specified when it was filed and there is no specific dollar limit on the amount of securities we may issue. The securities covered by the registration statement filed in July 2022 include: (i) Common Shares; (ii) preferred shares; (iii) debt securities; (iv) subscription rights; and (v) warrants. The specifics of any future offerings, along with the use of proceeds of any securities offered, will be described in detail in a prospectus supplement, or other offering materials, at the time of any offering.
As of June 30, 2024 and December 31, 2023, our debt consisted of asset based leverage facilities, a revolving credit facility, and unsecured note issuances. We may from time to time enter into additional credit facilities, increase the size of our existing credit facilities or issue further debt securities. Any such incurrence or issuance would be subject to prevailing market conditions, our liquidity requirements, contractual and regulatory restrictions and other factors. In accordance with the 1940 Act, with certain limited exceptions, we are only allowed to incur borrowings, issue debt securities or issue preferred stock, if immediately after the borrowing or issuance, the ratio of total assets (less total liabilities other than indebtedness) to total indebtedness plus preferred stock, is at least 150%. As of June 30, 2024 and December 31, 2023, we had an aggregate amount of $6,111.7 million and $4,937.9 million of senior securities outstanding, respectively, and our asset coverage ratio was 188.3% and 200.3%, respectively. We seek to carefully consider our unfunded commitments for the purpose of planning our ongoing financial leverage. Further, we maintain sufficient borrowing capacity within the 150% asset coverage limitation to cover any outstanding unfunded commitments we are required to fund. From time to time we may also repurchase our outstanding debt. Such repurchases, if any, will depend on prevailing market conditions, our liquidity requirements, contractual restrictions, and other factors. The amounts involved in any such purchase transactions, individually or in the aggregate, may be material.
Cash and cash equivalents as of June 30, 2024, taken together with our $888.3 million of unused capacity under our credit facilities (subject to borrowing base availability, $888.3 million is available to borrow) is expected to be sufficient for our investing activities and to conduct our operations in the near term. Additionally, we held $166.0 million of Level 2 debt investments as of June 30, 2024, which could provide additional liquidity if necessary.
Although we have historically been able to obtain sufficient borrowing capacity, a deterioration in economic conditions or any other negative economic developments could restrict our access to financing in the future. We may not be able to find new financing for future investments or liquidity needs and, even if we are able to obtain such financing, such financing may not be on as favorable terms as we have previously obtained. These factors may limit our ability to make new investments and adversely impact our results of operations.
As of June 30, 2024, we had $291.3 million in cash and cash equivalents. During the six months ended June 30, 2024, cash used in operating activities was $1,104.7 million, primarily due to purchases of investments of $1,609.8 million partially offset by sales of investments and principal repayments of $276.1 million and receipt of interest payments from our investments. Cash provided by financing activities was $1,241.1 million during the period, which was primarily as a result of net borrowings on our credit facilities and Unsecured Notes of $1,171.8 million and $350.2 million of proceeds from the issuance of our Common Shares partially offset by dividends paid in cash of $279.9 million.
              
NAV Per Share $ 27.19 $ 26.66 $ 26.30 $ 25.93        
2026 Notes [Member]                
Financial Highlights [Abstract]                
Senior Securities Amount $ 800,000 $ 800,000   $ 800,000 $ 800,000 $ 800,000 $ 0 $ 0
Senior Securities Coverage per Unit $ 1,883 $ 2,003   $ 1,748 $ 1,802 $ 2,300 $ 0 $ 0
New 2026 Notes [Member]                
Financial Highlights [Abstract]                
Senior Securities Amount $ 700,000 $ 700,000   $ 700,000 $ 700,000 $ 0 $ 0 $ 0
Senior Securities Coverage per Unit $ 1,883 $ 2,003   $ 1,748 $ 1,802 $ 0 $ 0 $ 0
2027 Notes [Member]                
Financial Highlights [Abstract]                
Senior Securities Amount $ 650,000 $ 650,000   $ 650,000 $ 650,000 $ 0 $ 0 $ 0
Senior Securities Coverage per Unit $ 1,883 $ 2,003   $ 1,748 $ 1,802 $ 0 $ 0 $ 0
2028 Notes [Member]                
Financial Highlights [Abstract]                
Senior Securities Amount $ 650,000 $ 650,000   $ 650,000 $ 650,000 $ 0 $ 0 $ 0
Senior Securities Coverage per Unit $ 1,883 $ 2,003   $ 1,748 $ 1,802 $ 0 $ 0 $ 0
Jackson Hole Funding Facility [Member]                
Financial Highlights [Abstract]                
Senior Securities Amount $ 399,874 $ 233,019   $ 360,019 $ 361,007 $ 362,316 $ 514,151 $ 120,000
Senior Securities Coverage per Unit $ 1,883 $ 2,003   $ 1,748 $ 1,802 $ 2,300 $ 2,151 $ 2,278
Breckenridge Funding Facility [Member]                
Financial Highlights [Abstract]                
Senior Securities Amount $ 768,350 $ 741,700   $ 825,000 $ 568,680 $ 569,000 $ 820,311 $ 65,000
Senior Securities Coverage per Unit $ 1,883 $ 2,003   $ 1,748 $ 1,802 $ 2,300 $ 2,151 $ 2,278
Big Sky Funding Facility [Member]                
Financial Highlights [Abstract]                
Senior Securities Amount $ 400,000 $ 480,906   $ 499,606 $ 499,606 $ 200,346 $ 0 $ 0
Senior Securities Coverage per Unit $ 1,883 $ 2,003   $ 1,748 $ 1,802 $ 2,300 $ 0 $ 0
Subscription Facility [Member]                
Financial Highlights [Abstract]                
Senior Securities Amount $ 0 $ 0   $ 0 $ 0 $ 0 $ 119,752 $ 0
Senior Securities Coverage per Unit $ 0 $ 0   $ 0 $ 0 $ 0 $ 2,151 $ 0
Revolving Credit Facility [Member]                
Financial Highlights [Abstract]                
Senior Securities Amount $ 1,343,492 $ 682,258   $ 678,378 $ 915,035 $ 182,901 $ 0 $ 0
Senior Securities Coverage per Unit $ 1,883 $ 2,003   $ 1,748 $ 1,802 $ 2,300 $ 0 $ 0
2023 Notes [Member]                
Financial Highlights [Abstract]                
Senior Securities Amount $ 0 $ 0   $ 400,000 $ 400,000 $ 400,000 $ 0 $ 0
Senior Securities Coverage per Unit $ 0 $ 0   $ 1,748 $ 1,802 $ 2,300 $ 0 $ 0
November 2027 Notes [Member]                
Financial Highlights [Abstract]                
Senior Securities Amount $ 400,000              
Senior Securities Coverage per Unit $ 1,883              
v3.24.2.u1
Significant Accounting Policies (Policies)
 6 Months Ended
Jun. 30, 2024
Accounting Policies [Abstract]  
Basis of Presentation
Basis of Presentation
The condensed consolidated financial statements have been prepared on the accrual basis of accounting in accordance with accounting principles generally accepted in the United States (“GAAP”). As an investment company, the Company applies the accounting and reporting guidance in Accounting Standards Codification (“ASC”) Topic 946, “Financial Services – Investment Companies” (“ASC 946”) issued by the Financial Accounting Standards Board (“FASB”).
The interim condensed consolidated financial statements have been prepared in accordance with GAAP for interim financial information and pursuant to the requirements for reporting on Form 10-Q and Article 6 and Article 10 of Regulation S-X. Accordingly, certain disclosures accompanying the annual consolidated financial statements prepared in accordance with GAAP are omitted. In the opinion of management, all adjustments considered necessary for the fair presentation of the condensed consolidated financial statements for the interim period presented, have been included. The current period’s results of operations will not necessarily be indicative of results that ultimately may be achieved for the fiscal year ending December 31, 2024.
All intercompany balances and transactions have been eliminated.
Certain prior period information has been reclassified to conform to the current period presentation.
Use of Estimates
Use of Estimates
The preparation of condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements. Such amounts could differ from those estimates and such differences could be material. Assumptions and estimates regarding the valuation of investments involve a higher degree of judgment and complexity and these assumptions and estimates may be significant to the condensed consolidated financial statements. Actual results may ultimately differ from those estimates.
Consolidation
Consolidation
As provided under ASC 946, the Company will not consolidate its investment in a company other than an investment company subsidiary or a controlled operating company whose business consists of providing services to the Company.
The Company consolidated the results of the Company’s wholly-owned subsidiaries which are considered to be investment companies. As of June 30, 2024 and December 31, 2023, the Company's consolidated subsidiaries were BGSL Jackson Hole Funding LLC (“Jackson Hole Funding”), BGSL Breckenridge Funding LLC (“Breckenridge Funding”), BGSL Big Sky Funding LLC (“Big Sky Funding”), BGSL Investments LLC (“BGSL Investments”), BXSL Associates GP (Lux) S.à r.l, BXSL Direct Lending (Lux) SCSp, BXSL C-1 LLC, and BXSL C-2 Funding LLC.
Cash and Cash Equivalents
Cash and Cash Equivalents
Cash and cash equivalents consist of demand deposits and highly liquid investments, such as money market funds, with original maturities of three months or less. Cash and cash equivalents are carried at cost, which approximates fair value. The Company deposits its cash and cash equivalents with financial institutions and, at times, may exceed the Federal Deposit Insurance Corporation insured limit.
Investments/Receivables/Payables From Investments Sold/Purchased
Investments
Investment transactions are recorded on a trade date basis.
Realized gains or losses are measured by the difference between the net proceeds received (excluding prepayment fees, if any) and the amortized cost basis of the investment using the specific identification method without regard to unrealized gains or losses previously recognized, and include investments charged off during the period, net of recoveries, and is recorded within Net realized gain (loss) on the Condensed Consolidated Statements of Operations.
The net change in unrealized gains or losses primarily reflects the change in investment values, including the reversal of previously recorded unrealized gains or losses with respect to investments realized during the period, and is recorded within Net change in unrealized appreciation (depreciation) on the Condensed Consolidated Statements of Operations.
Valuation of Investments
The Company is required to report its investments, including those for which current market values are not readily available, at fair value.
The Company values its investments in accordance with ASC 820, Fair Value Measurements (“ASC 820”), which defines fair value as the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the applicable measurement date, and Rule 2a-5 under the 1940 Act.
Under ASC 820, fair value is based on observable market prices or parameters or derived from such prices or parameters when such quotations are readily available. In accordance with Rule 2a-5 under the 1940 Act, fair value means the value of a portfolio investment for which market quotations are not readily available. A market quotation is “readily available” only when it is a quoted price (unadjusted) in active markets for identical instruments that a fund can access at the measurement date, provided that such a quotation is not considered to be readily available if it is not reliable.
Where prices or inputs are not available or, in the judgment of the Board, with assistance of the Adviser, the Audit Committee and independent valuation firm(s), determine to be not reliable, valuation techniques based on the facts and circumstances of the particular investment will be utilized. These valuation approaches involve some level of management estimation and judgment, the degree of which is dependent on the price transparency for the investments or market and the investments’ complexity. In the absence of observable, reliable market prices, the Company values its investments using various valuation methodologies applied on a consistent basis.
An enterprise value (“EV”) analysis is generally performed to determine the value of equity investments, control debt investments and non-control debt investments that are credit-impaired, and to determine if debt investments are credit-impaired. The Adviser will generally utilize approaches including the market approach, the income approach or both approaches, as appropriate, when calculating EV. The primary method for determining EV for non-control investments, and control investments without reliable projections, uses a multiple analysis whereby appropriate multiples are applied to the portfolio company’s earnings before interest, taxes, depreciation and amortization (“EBITDA”) or another key financial metric (e.g., such as revenues, cash flows or net income) (“Performance Multiple”). Performance Multiples are typically determined based upon a review of publicly-traded comparable companies and market comparable transactions, if any. The second method for determining EV (and primary method for control investments with reliable projections) uses a discounted cash flow analysis whereby future expected cash flows and the anticipated terminal value of the portfolio company are discounted to determine a present value using estimated discount rates. The income approach is generally used when the Adviser has visibility into the long term projected cash flows of a portfolio company.
If debt investments are credit-impaired, which occurs when there is insufficient coverage under the enterprise value analysis through the respective investment’s position in the capital structure, the Adviser generally uses the enterprise value “waterfall” approach or a recovery method (if a liquidation or restructuring is deemed likely) to determine fair value. For debt investments that are not determined to be credit-impaired, the Adviser generally uses a market interest rate yield analysis to determine fair value. To determine fair value using a yield analysis, the expected cash flows are projected based on the contractual terms of the debt security and discounted back to the measurement date based on a market yield. A market yield is determined based upon an assessment of current and expected market yields for similar investments and risk profiles. The Company considers the current contractual interest rate, the maturity and other terms of the investment relative to risk of the company and the specific investment. A key determinant of risk, among other things, is the leverage through the investment relative to the enterprise value of the portfolio company. As debt investments held by the Company are substantially illiquid with no active transaction market, the Company depends on primary market data, including newly funded transactions, as well as secondary market data with respect to high yield debt instruments and syndicated loans, as inputs in determining the appropriate market yield, as applicable. The fair value of loans with call protection is generally capped at par plus applicable prepayment premium in effect at the measurement date.
ASC 820 prioritizes the use of observable market prices derived from such prices. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The levels used for classifying investments are not necessarily an indication of the risk associated with investing in these securities. The three levels of the fair value hierarchy are as follows:
•Level 1: Inputs to the valuation methodology are quoted prices available in active markets for identical instruments as of the reporting date. The types of financial instruments included in Level 1 include unrestricted securities, including equities and derivatives, listed in active markets.
•Level 2: Inputs to the valuation methodology are other than quoted prices in active markets, which are either directly or indirectly observable as of the reporting date. The types of financial instruments in this category include less liquid and restricted securities listed in active markets, securities traded in other than active markets, government and agency securities and certain over-the-counter derivatives where the fair value is based on observable inputs.
•Level 3: Inputs to the valuation methodology are unobservable and significant to overall fair value measurement. The inputs into the determination of fair value require significant management judgment or estimation. Financial instruments that are included in this category include debt and equity investments in privately held entities, collateralized loan obligations (“CLOs”) and certain over-the-counter derivatives where the fair value is based on unobservable inputs.
In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, an investment’s level within the fair value hierarchy is based on the lowest level of input that is significant to the overall fair value measurement. The Board’s assessment, with the assistance of the Adviser, the Audit Committee and independent valuation firm(s), of the significance of a particular input to the fair value measurement in its entirety requires judgment, and considers factors specific to the investment. Transfers between levels, if any, are recognized at the beginning of the quarter in which the transfer occurs.
The Company evaluates the source of the inputs, including any markets in which its investments are trading (or any markets in which securities with similar attributes are trading), in determining fair value. When an investment is valued based on prices provided by reputable dealers or pricing services (that is, broker quotes), the Company subjects those prices to various criteria in making the determination as to whether a particular investment would qualify for treatment as a Level 2 or Level 3 investment.
Due to the inherent uncertainty of determining the fair value of investments that do not have a readily available market value, the fair value of the Company’s investments may fluctuate from period to period, and these differences could be material. Additionally, the fair value of the Company’s investments may differ significantly from the values that would have been used had a ready market existed for such investments and may differ materially from the values that the Company may ultimately realize. Further, such investments are generally subject to legal and other restrictions on resale or otherwise are less liquid than publicly-traded securities. If the Company was required to liquidate a portfolio investment in a forced or liquidation sale, it could realize significantly less than the value at which the Company has recorded it. In addition, changes in the market environment and other events that may occur over the life of the investments may cause the gains or losses ultimately realized on these investments to be different than the unrealized gains or losses reflected in the valuations currently assigned. See “Item 2. Management’s Discussion and Analysis of Financial Conditions and Results of Operations—Critical Accounting Estimates.”
Receivables/Payables From Investments Sold/Purchased
Receivables/payables from investments sold/purchased consist of amounts receivable to or payable by the Company for transactions that have not settled at the reporting date.
Derivative Instruments/Forward Purchase Agreement
Derivative Instruments
The Company recognizes all derivative instruments as assets or liabilities at fair value in its condensed consolidated financial statements. Derivative contracts entered into by the Company are not designated in hedge accounting relationships and all changes in fair value are recognized through current period gains or losses.
In the normal course of business, the Company has commitments and risks resulting from its investment transactions, which may include those involving derivative instruments. Derivative instruments are measured in terms of the notional contract amount and derive their value based upon one or more underlying instruments. While the notional amount gives some indication of the Company’s derivative activity, it generally is not exchanged, but is only used as the basis on which interest and other payments are exchanged. Derivative instruments are subject to various risks similar to non-derivative instruments including market, credit, liquidity, and operational risks. The Company manages these risks on an aggregate basis as part of its risk management process.
The Company designated certain interest rate swaps as the hedging instrument in a qualifying fair value hedge accounting relationship, and therefore the change in fair value of the hedging instrument and hedged item are recorded in Interest expense and recognized as components of Interest expense in the Condensed Consolidated Statements of Operations. The change in fair value of the interest rate swap is offset by a change in the carrying value of the fixed rate debt.
Forward Purchase Agreement
Forward purchase agreements are recognized at fair value through current period gains or losses on the date on which the contract is entered into and are subsequently re-measured at fair value. All forward purchase agreements are carried as assets when fair value is positive and as liabilities when fair value is negative. A forward purchase agreement is derecognized when the obligation specified in the contract is discharged, canceled or expired.
Foreign Currency Transactions
Foreign Currency Transactions
Amounts denominated in foreign currencies are translated into U.S. dollars on the following basis: (i) investments and other assets and liabilities denominated in foreign currencies are translated into U.S. dollars based upon currency exchange rates effective on the last business day of the period; and (ii) purchases and sales of investments, borrowings and repayments of such borrowings, income, and expenses denominated in foreign currencies are translated into U.S. dollars based upon currency exchange rates prevailing on the transaction dates.
The Company includes net changes in fair values on investments held resulting from foreign exchange rate fluctuations in Translation of assets and liabilities in foreign currencies on the Condensed Consolidated Statements of Operations, if any. Foreign security and currency translations may involve certain considerations and risks not typically associated with investing in U.S. companies and U.S. government securities. These risks include, but are not limited to, currency fluctuations and revaluations and future adverse political, social and economic developments, which could cause investments in foreign markets to be less liquid and prices more volatile than those of comparable U.S. companies or U.S. government securities.
Revenue Recognition
Revenue Recognition
Interest Income
Interest income is recorded on an accrual basis and includes the accretion of discounts and amortizations of premiums. Discounts from and premiums to par value on debt investments purchased are accreted/amortized into interest income over the life of the respective security using the effective interest method. The amortized cost of debt investments represents the original cost, including loan origination fees and upfront fees received that are deemed to be an adjustment to yield, adjusted for the accretion of discounts and amortization of premiums, if any. Upon prepayment of a loan or debt security, any prepayment premiums, unamortized upfront loan origination fees and unamortized discounts are recorded as interest income in the current period. For the three and six months ended June 30, 2024, the Company recorded $0.4 million and $2.3 million, respectively, in non-recurring interest income (e.g., prepayment premiums, accelerated accretion of upfront loan origination fees and unamortized discounts). For the three and six months ended June 30, 2023, the Company recorded $13.0 million and $13.4 million, respectively, in non-recurring interest income.
PIK Income
The Company has loans in its portfolio that contain payment-in-kind (“PIK”) provisions. PIK represents interest that is accrued and recorded as interest income at the contractual rates, increases the loan principal on the respective capitalization dates, and is generally due at maturity. Such income is included in payment-in-kind interest income in the Condensed Consolidated Statements of Operations. If at any point the Company believes PIK is not expected to be realized, the investment generating PIK will be placed on non-accrual status. When a PIK investment is placed on non-accrual status, the accrued, uncapitalized interest is generally reversed through payment-in-kind interest income. To satisfy the Company’s annual RIC distribution requirements, this non-cash source of income must be included in determining the amounts to be paid out to shareholders in the form of dividends, even though the Company has not yet collected cash.
Dividend Income
Dividend income on preferred equity securities is recorded on an accrual basis to the extent that such amounts are payable by the portfolio company and are expected to be collected. Dividend income on common equity securities is recorded on the record date for private portfolio companies or on the ex-dividend date for publicly-traded portfolio companies.
Fee Income
The Company may receive various fees in the ordinary course of business such as structuring, consent, waiver, amendment, syndication and other miscellaneous fees as well as fees for managerial assistance rendered by the Company to the portfolio companies. Such fees are recognized as income when earned or the services are rendered.
Non-Accrual Income
Loans are generally placed on non-accrual status when there is reasonable doubt whether principal or interest will be collected in full. Accrued interest is generally reversed when a loan is placed on non-accrual status. Additionally, any original issue discount and market discount are no longer accreted to interest income as of the date the loan is placed on non-accrual status. Interest payments received on non-accrual loans may be recognized as income or applied to principal depending upon management’s judgment regarding collectability. Non-accrual loans are restored to accrual status when past due principal and interest is paid current and, in management’s judgment, are likely to remain current. Management may make exceptions to this treatment and determine to not place a loan on non-accrual status if the loan has sufficient collateral value and is in the process of collection.
For further information regarding the non-accrual status of investments refer to “Note 4. Investments”.
Organization Expenses and Offering Expenses
Organization Expenses and Offering Expenses
The Company records expenses related to public equity offerings as a reduction of capital upon completion of an offering of registered securities. The costs associated with any renewals of a shelf registration statement will be expensed as incurred.
Deferred Financing Costs and Debt Issuance Costs
Deferred Financing Costs and Debt Issuance Costs
Deferred financing and debt issuance costs represent fees and other direct incremental costs incurred in connection with the Company’s borrowings. These expenses are deferred and amortized into interest expense over the life of the related debt instrument. Deferred financing costs related to revolving credit facilities are presented separately as an asset on the Company’s Condensed Consolidated Statements of Assets and Liabilities. Debt issuance costs related to any issuance of installment debt or notes are presented net against the outstanding debt balance of the related security.
Income Taxes
Income Taxes
The Company has elected to be treated as a BDC under the 1940 Act. The Company also has elected to be treated as a RIC under the Code. So long as the Company maintains its status as a RIC, it generally will not pay corporate-level U.S. federal income taxes on any ordinary income or capital gains that it distributes at least annually to its shareholders as dividends. Rather, any tax liability related to income earned and distributed by the Company would represent obligations of the Company’s investors and would not be reflected in the condensed consolidated financial statements of the Company.
The Company evaluates tax positions taken or expected to be taken in the course of preparing its condensed consolidated financial statements to determine whether the tax positions are “more-likely-than-not” to be sustained by the applicable tax authority. Tax positions not deemed to meet the “more-likely-than-not” threshold are reserved and recorded as a tax benefit or expense in the current year. All penalties and interest associated with income taxes are included in income tax expense. Conclusions regarding tax positions are subject to review and may be adjusted at a later date based on factors including, but not limited to, on-going analyses of tax laws, regulations and interpretations thereof.
To qualify for and maintain qualification as a RIC, the Company must, among other things, meet certain source-of-income and asset diversification requirements. In addition, to qualify for taxation as a RIC, the Company must distribute to its shareholders, for each taxable year, at least 90% of the sum of (i) its “investment company taxable income” for that year (without regard to the deduction for dividends paid), which is generally its ordinary income plus the excess, if any, of its realized net short-term capital gains over its realized net long-term capital losses and (ii) its net tax-exempt income.
In addition, based on the excise tax distribution requirements, the Company is subject to a 4% nondeductible federal excise tax on certain undistributed income unless the Company distributes in a timely manner in each taxable year an amount at least equal to the sum of (i) 98% of its ordinary income for the calendar year, (ii) 98.2% of its capital gain net income (both long-term and short-term) for the one-year period ending October 31 in that calendar year and (iii) any income realized, but not distributed, in prior years. For this purpose, however, any ordinary income or capital gain net income retained by the Company that is subject to corporate income tax is considered to have been distributed.
Distributions
Distributions
To the extent that the Company has taxable income available, the Company intends to make quarterly distributions to its shareholders. Distributions to shareholders are recorded on the record date. All distributions will be paid at the discretion of the Board and will depend on the Company’s earnings, financial condition, maintenance of the Company's tax treatment as a RIC, compliance with applicable BDC regulations and such other factors as the Board may deem relevant from time to time.
Recent Accounting Pronouncements
Recent Accounting Pronouncements
In November 2023, the FASB issued ASU 2023-07 “Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures,” (“ASU 2023-07”). ASU 2023-07 enhances the disclosures required for reportable segments on an annual and interim basis. ASU 2023-07 is effective on a retrospective basis for annual periods beginning after December 15, 2023, for interim periods within fiscal years beginning after December 15, 2024, and early adoption is permitted. The Company does not expect the adoption of ASU 2023-07 to have a material impact on its consolidated financial statements.
In December 2023, the FASB issued ASU 2023-09 “Income Taxes (Topic 740): Improvements to Income Tax Disclosures,” (“ASU 2023-09”). ASU 2023-09 requires additional disaggregated disclosures on the entity’s effective tax rate reconciliation and additional details on income taxes paid. ASU 2023-09 is effective on a prospective basis, with the option for retrospective application, for annual periods beginning after December 15, 2024 and early adoption is permitted. The Company does not expect the adoption of ASU 2023-09 to have a material impact on its consolidated financial statements.
Fair Value Measurements
The significant unobservable input used in the yield analysis is the discount rate based on comparable market yields. The significant unobservable input used for market quotations are broker quoted prices provided by independent pricing services. The significant unobservable input used under the market approach is the Performance Multiple. Significant increases in discount rates would result in a significantly lower fair value measurement. Significant decreases in quoted prices or Performance Multiples would result in a significantly lower fair value measurement.
v3.24.2.u1
Investments (Tables)
 6 Months Ended
Jun. 30, 2024
Schedule of Investments [Abstract]  
Schedule of Investments
The composition of the Company’s investment portfolio at cost and fair value was as follows:
June 30, 2024December 31, 2023
CostFair Value% of Total
Investments at
Fair Value		CostFair Value% of Total
Investments at
Fair Value
First lien debt$11,208,575 $11,141,918 98.6 %$9,817,402 $9,722,061 98.5 %
Second lien debt44,076 41,985 0.4 43,347 41,515 0.4 
Unsecured debt12,148 12,278 0.1 9,930 9,924 0.1 
Equity65,670 97,616 0.9 63,480 94,940 1.0 
Total$11,330,469 $11,293,797 100.0 %$9,934,159 $9,868,440 100.0 %
The industry composition of investments at fair value was as follows:
June 30, 2024December 31, 2023
Aerospace & Defense5.0 %5.2 %
Air Freight & Logistics3.6 4.2 
Auto Components (1)
0.0 — 
Building Products2.8 3.2 
Chemicals0.4 0.1 
Commercial Services & Supplies7.1 7.8 
Construction & Engineering0.5 0.5 
Containers & Packaging0.2 0.2 
Distributors5.1 5.7 
Diversified Consumer Services4.0 3.9 
Diversified Financial Services1.3 1.4 
Diversified Telecommunication Services1.2 1.4 
Electrical Equipment0.4 1.1 
June 30, 2024December 31, 2023
Electronic Equipment, Instruments & Components1.1 %1.3 %
Electric Utilities0.6 0.6 
Energy Equipment & Services0.2 0.4 
Ground Transportation— 0.2 
Health Care Equipment & Supplies0.7 0.6 
Health Care Providers & Services10.5 10.7 
Health Care Technology4.9 5.1 
Industrial Conglomerates0.1 0.1 
Insurance5.5 5.4 
Internet & Direct Marketing Retail2.8 3.2 
IT Services4.3 2.9 
Machinery (1)(2)
0.0 0.0 
Marine0.5 0.3 
Media0.6 0.1 
Oil, Gas & Consumable Fuels0.9 1.0 
Paper & Forest Products0.1 0.1 
Pharmaceuticals0.2 0.2 
Professional Services8.9 7.8 
Real Estate Management & Development0.9 0.9 
Software18.4 17.4 
Specialty Retail1.5 1.7 
Technology Hardware, Storage & Peripherals0.7 0.8 
Trading Companies & Distributors1.2 0.5 
Transportation Infrastructure3.8 4.0 
Total100.0 %100.0 %
(1)Amount rounds to less than 0.1% as of June 30, 2024
(2)Amount rounds to less than 0.1% as of December 31, 2023.
The geographic composition of investments at cost and fair value was as follows:
June 30, 2024
CostFair Value% of Total
Investments at
Fair Value		Fair Value
as % of Net
Assets
United States$10,439,866 $10,411,725 92.2 %193.0 %
Canada283,618 287,155 2.5 5.3 
Bermuda/Cayman Islands436 569 0.0 0.0 
Europe605,908 593,697 5.3 11.0 
Asia641 651 0.0 0.0 
Total$11,330,469 $11,293,797 100.0 %209.3 %
December 31, 2023
CostFair Value% of Total Investments at Fair ValueFair Value
 as % of Net
Assets
United States$9,381,707 $9,317,684 94.4 %188.2 %
Canada275,579 278,103 2.8 5.6 
Bermuda/Cayman Islands436 473 0.0 0.0 
Europe276,437 272,180 2.8 5.5 
Total$9,934,159 $9,868,440 100.0 %199.3 %
v3.24.2.u1
Fair Value Measurements (Tables)
 6 Months Ended
Jun. 30, 2024
Fair Value Disclosures [Abstract]  
Fair Value, Assets Measured on Recurring Basis
The following tables present the fair value hierarchy of financial instruments:
June 30, 2024
Level 1Level 2Level 3Total
First lien debt$— $165,951 $10,975,967 $11,141,918 
Second lien debt— — 41,985 41,985 
Unsecured debt— — 12,278 12,278 
Equity— — 97,616 97,616 
Total$— $165,951 $11,127,846 $11,293,797 
December 31, 2023
Level 1Level 2Level 3Total
First lien debt$— $157,858 $9,564,203 $9,722,061 
Second lien debt— — 41,515 41,515 
Unsecured debt— — 9,924 9,924 
Equity— — 94,940 94,940 
Total$— $157,858 $9,710,582 $9,868,440 
Summary of Changes in Fair Value of Investments Measured Using Level 3 Inputs
The following tables present changes in the fair value of financial instruments for which Level 3 inputs were used to determine the fair value:
Three Months Ended June 30, 2024
First Lien 
Debt		Second Lien 
Debt		Unsecured DebtEquityTotal Investments
Fair value, beginning of period$10,178,311 $41,515 $11,859 $98,680 $10,330,365 
Purchases of investments906,014 501 413 3 906,931 
Proceeds from principal repayments and sales of investments(87,920)— — — (87,920)
Accretion of discount/(amortization of premium)9,227 23 11 — 9,261 
Net realized gain (loss)195 — — — 195 
Net change in unrealized appreciation (depreciation)21,574 (54)(5)(1,067)20,448 
Transfers into Level 3 (1)
— — — — — 
Transfers out of Level 3 (1)
(51,434)— — — (51,434)
Fair value, end of period$10,975,967 $41,985 $12,278 $97,616 $11,127,846 
   Net change in unrealized appreciation (depreciation) included in earnings related to financial instruments still held as of June 30, 2024 included in net change in unrealized appreciation (depreciation) on the Condensed Consolidated Statements of Operations
$21,185 $(54)$(5)$(1,067)$20,059 
Six Months Ended June 30, 2024
First Lien 
Debt		Second Lien 
Debt		Unsecured DebtEquityTotal Investments
Fair value, beginning of period$9,564,203 $41,515 $9,924 $94,940 $9,710,582 
Purchases of investments1,639,580 681 2,198 2,190 1,644,649 
Proceeds from principal repayments and sales of investments(272,398)— — — (272,398)
Accretion of discount/(amortization of premium)18,538 48 20 — 18,606 
Net realized gain (loss)623 — — — 623 
Net change in unrealized appreciation (depreciation)26,223 (259)136 486 26,586 
Transfers into Level 3 (1)
— — — — — 
Transfers out of Level 3 (1)
(802)— — — (802)
Fair value, end of period$10,975,967 $41,985 $12,278 $97,616 $11,127,846 
   Net change in unrealized appreciation (depreciation) included in earnings related to financial instruments still held as of June 30, 2024 included in net change in unrealized appreciation (depreciation) on the Condensed Consolidated Statements of Operations
$28,769 $(259)$130 $486 $29,126 
Three Months Ended June 30, 2023
First Lien 
Debt		Second Lien 
Debt		EquityTotal Investments
Fair value, beginning of period$9,225,290 $46,678 $154,521 $9,426,489 
Purchases of investments129,728 425 — 130,153 
Proceeds from principal repayments and sales of investments(414,400)(7,351)(43,850)(465,601)
Accretion of discount/(amortization of premium)20,635 35 — 20,670 
Net realized gain (loss)(7,972)(49)7,212 (809)
Net change in unrealized appreciation (depreciation)(18,512)348 (7,716)(25,880)
Transfers into Level 3 (1)
— — — — 
Transfers out of Level 3 (1)
— — — — 
Fair value, end of period$8,934,769 $40,086 $110,167 $9,085,022 
   Net change in unrealized appreciation (depreciation) included in earnings related to financial instruments still held as of June 30, 2023 included in net change in unrealized appreciation (depreciation) on the Condensed Consolidated Statements of Operations
$(13,715)$205 $(7,716)$(21,226)
Six Months Ended June 30, 2023
First Lien 
Debt		Second Lien 
Debt		EquityTotal Investments
Fair value, beginning of period$9,275,511 $46,336 $150,949 $9,472,796 
Purchases of investments242,609 836 — 243,445 
Proceeds from principal repayments and sales of investments(483,996)(7,350)(43,849)(535,195)
Accretion of discount/(amortization of premium)28,945 70 — 29,015 
Net realized gain (loss)(7,925)(49)7,212 (762)
Net change in unrealized appreciation (depreciation)(33,374)243 (4,145)(37,276)
Transfers into Level 3 (1)
4,938 — — 4,938 
Transfers out of Level 3 (1)
(91,939)— — (91,939)
Fair value, end of period$8,934,769 $40,086 $110,167 $9,085,022 
   Net change in unrealized appreciation (depreciation) included in earnings related to financial instruments still held as of June 30, 2023 included in net change in unrealized appreciation (depreciation) on the Condensed Consolidated Statements of Operations
$(33,078)$31 $(4,145)$(37,192)
(1)For the three and six months ended June 30, 2024 and 2023, transfers into or out of Level 3 were primarily due to decreased or increased price transparency.
Fair Value Measurement Inputs and Valuation Techniques
The following tables present quantitative information about the significant unobservable inputs of the Company’s Level 3 financial instruments. These tables are not intended to be all-inclusive but instead capture the significant unobservable inputs relevant to the Company’s determination of fair value.
June 30, 2024
Range
Fair ValueValuation TechniqueUnobservable InputLowHigh
Weighted Average (1)
Investments in first lien debt$10,892,028 Yield AnalysisDiscount Rate7.83 %30.50 %10.31 %
76,835 Asset RecoverabilityMarket Multiple8.00x11.50x10.02x
7,104 Market QuotationsBroker quoted price99.7599.7599.75
10,975,967 
Investments in second lien debt41,985 Yield AnalysisDiscount Rate9.63 %15.28 %13.01 %
Investments in unsecured debt12,278 Yield AnalysisDiscount Rate12.87%13.96%13.82%
Investments in equity63,574 Market ApproachPerformance Multiple6.44x30.00x12.18x
27,210 Option Pricing Model Expected Volatility32.00 %55.00 %44.10 %
6,832 Yield AnalysisDiscount Rate11.88 %17.94 %14.43 %
97,616 
Total$11,127,846 
December 31, 2023
Range
Fair ValueValuation TechniqueUnobservable InputLowHigh
Weighted Average (1)
Investments in first lien debt$9,533,700 Yield AnalysisDiscount Rate7.68 %30.89 %10.31 %
30,503 Asset RecoverabilityMarket Multiple10.50x10.50x10.50x
9,564,203 
Investments in second lien debt41,515 Yield AnalysisDiscount Rate10.18 %14.38 %12.69 %
Investments in unsecured debt9,924 Yield AnalysisDiscount Rate14.90%14.90%14.90%
Investments in equity60,007 Market ApproachPerformance Multiple6.40x30.00x11.47x
28,531 Option Pricing ModelExpected Volatility32.00 %55.00 %42.86 %
6,402 Yield AnalysisDiscount Rate10.75 %17.92 %14.17 %
94,940 
Total$9,710,582 
(1)Weighted averages are calculated based on fair value of investments.
Schedule of Fair Value Measurements of Unsecured Notes
The following table presents the fair value measurements of the Company's Unsecured Notes (as defined in Note 7) had they been accounted for at fair value. These financial instruments would be categorized as Level 3 within the hierarchy as of June 30, 2024 and December 31, 2023.
June 30, 2024December 31, 2023
Fair ValueFair Value
2026 Notes$768,048 $763,085 
New 2026 Notes648,214 643,814 
2027 Notes587,191 583,633 
2028 Notes570,187 561,129 
November 2027 Notes397,260 — 
Total$2,970,900 $2,551,661 
v3.24.2.u1
Derivatives (Tables)
 6 Months Ended
Jun. 30, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Schedule of Derivative Instruments
The following table presents the aggregate notional amount and fair value hierarchy of the Company’s derivative financial instruments as of June 30, 2024:

June 30, 2024
Level 1Level 2Level 3Total Fair ValueNotional
Derivative Assets
Interest rate swaps$— $2,015 $— $2,015 $400,000 
Total Derivative assets at fair value$— $2,015 $— $2,015 $400,000 
Cash collateral received$— 
Derivative Liabilities
Interest rate swaps$— $— $— $— $— 
Total Derivative liabilities at fair value$— $— $— $— $— 
Cash collateral posted$1,770 
For derivative instruments designated in qualifying hedge relationships, the change in fair value of the hedging instrument and hedged item are recorded in Interest expense and recognized as components of Interest expense in the Condensed Consolidated Statements of Operations.
For the Three months ended June 30,For the Six months ended June 30,
2024202320242023
Interest rate swaps$2,015 $— $2,015 $— 
Hedged items(1,432)— (1,432)— 
The table below presents the carrying value of unsecured borrowings as of June 30, 2024 and December 31, 2023 that are designated in a qualifying hedging relationship and the related cumulative hedging adjustment (increase/(decrease)) from current and prior hedging relationships included in such carrying values:
June 30, 2024December 31, 2023
DescriptionCarrying ValueCumulative Hedging AdjustmentsCarrying ValueCumulative Hedging Adjustments
Unsecured notes$394,417 $1,432 $— $— 
v3.24.2.u1
Borrowings (Tables)
 6 Months Ended
Jun. 30, 2024
Debt Disclosure [Abstract]  
Schedule of Long-Term Debt Instruments
The Company’s outstanding debt obligations were as follows:
June 30, 2024
Aggregate
Principal
Committed		Outstanding
Principal		Carrying
Value		Unamortized Debt Issuance Costs
Unused
Portion (1)
Amount
Available (2)
Jackson Hole Funding Facility (3)
$500,000 $399,874 $399,874 $— $100,126 $100,126 
Breckenridge Funding Facility1,025,000 768,350 768,350 — 256,650 256,650 
Big Sky Funding Facility500,000 400,000 400,000 — 100,000 100,000 
Revolving Credit Facility (4)
1,775,000 1,343,492 1,343,492 — 431,508 431,508 
2026 Notes800,000 800,000 797,236 2,764 — — 
New 2026 Notes700,000 700,000 696,088 3,912 — — 
2027 Notes650,000 650,000 642,782 7,218 — — 
2028 Notes
650,000 650,000 642,022 7,978 — — 
November 2027 Notes (5)
400,000 400,000 394,417 7,015 — — 
Total$7,000,000 $6,111,716 $6,084,261 $28,887 $888,284 $888,284 
(1)The unused portion is the amount upon which commitment fees, if any, are based.
(2)The amount available reflects any limitations related to each respective credit facility’s borrowing base.
(3)Under the Jackson Hole Funding Facility, the Company may borrow in U.S. dollars (USD) or certain other permitted currencies. As of June 30, 2024, the Company had no borrowings denominated in currencies other than USD.
(4)Under the Revolving Credit Facility, the Company may borrow in U.S. dollars or certain other permitted currencies. As of June 30, 2024, the Company had non-USD borrowings denominated in the following currencies:
•Canadian Dollars (CAD) 12.0 million
•Euros (EUR) 191.1 million
•British Pounds (GBP) 185.1 million
•Australian Dollar (AUD) 1.0 million
(5)Carrying value is inclusive of adjustment for the change in fair value of effective hedge relationship.
December 31, 2023
Aggregate
Principal
Committed		Outstanding
Principal		Carrying
Value		Unamortized Debt Issuance Costs
Unused
Portion (1)
Amount
Available (2)
Jackson Hole Funding Facility (3)
$500,000 $233,019 $233,019 $— $266,981 $266,981 
Breckenridge Funding Facility1,025,000 741,700 741,700 — 283,300 283,300 
Big Sky Funding Facility500,000 480,906 480,906 — 19,094 19,094 
Revolving Credit Facility (4)
1,775,000 682,258 682,258 — 1,092,742 1,092,662 
2026 Notes800,000 800,000 796,343 3,657 — — 
New 2026 Notes700,000 700,000 695,206 4,794 — — 
2027 Notes650,000 650,000 641,412 8,588 — — 
2028 Notes650,000 650,000 641,086 8,914 — — 
Total$6,600,000 $4,937,883 $4,911,930 $25,953 $1,662,117 $1,662,037 
(1)The unused portion is the amount upon which commitment fees, if any, are based.
(2)The amount available reflects any limitations related to each respective credit facility’s borrowing base.
(3)Under the Jackson Hole Funding Facility, the Company may borrow in U.S. dollars (USD) or certain other permitted currencies. As of December 31, 2023, the Company had no borrowings denominated in currencies other than USD.
(4)Under the Revolving Credit Facility, the Company may borrow in USD or certain other permitted currencies. As of December 31, 2023, the Company had non-USD borrowings denominated in the following currencies:
•Canadian Dollars (CAD) 1.0 million
•Euros (EUR) 94.4 million
•British Pounds (GBP) 66.9 million
The components of interest expense were as follows:
Three months ended June 30,Six months ended June 30,
2024202320242023
Borrowing interest expense$74,511 $61,128 $135,676 $123,253 
Facility unused fees927 1,108 2,743 2,037 
Amortization of deferred financing costs1,705 1,334 3,403 2,459 
Amortization of original issue discount and debt issuance costs2,281 2,578 4,321 5,127 
Gain (loss) from interest rate swaps accounted for as hedges and the related hedged items:
Interest rate swaps(2,015)— (2,015)— 
Hedged items1,432 — 1,432 — 
Total Interest Expense$78,841 $66,148 $145,560 $132,876 
Cash paid for interest expense$61,034 $37,501 $133,658 $126,014 
v3.24.2.u1
Net Assets (Tables)
 6 Months Ended
Jun. 30, 2024
Equity [Abstract]  
Schedule of Shares Issued and Proceeds Received
The following table summarizes the total Common Shares issued and proceeds received, for the three months ended June 30, 2024, through the “at-the-market” offering program (dollars in thousands except share and per share amounts):
Issuances of Common SharesNumber of Common Shares IssuedGross ProceedsPlacement Fees/Offering Expenses
Net Proceeds (2)
Average Share Price (1)
“At-the-market” Offering6,333,768 $190,966 $831 $190,135 $30.02 
(1)Represents the net offering price per share after deducting placement fees and commissions and offering expenses.
(2)The Company received $1.9 million of proceeds subsequent to June 30, 2024 on July 1, 2024. The amount was recorded as Receivable for shares sold in the Condensed Consolidated Statement of Assets and Liabilities.
The following table summarizes the total Common Shares issued and proceeds received, for the six months ended June 30, 2024, through the “at-the-market” offering program (dollars in thousands except share and per share amounts):
Issuances of Common SharesNumber of Common Shares IssuedGross ProceedsPlacement Fees/Offering Expenses
Net Proceeds (2)
Average Share Price (1)
“At-the-market” Offering12,219,314 $353,693 $1,535 $352,158 $28.82 
(1)Represents the net offering price per share after deducting placement fees and commissions and offering expenses.
(2)The Company received $1.9 million of proceeds subsequent to June 30, 2024 on July 1, 2024. The amount was recorded as Receivable for shares sold in the Condensed Consolidated Statement of Assets and Liabilities.
The following table summarizes the total Common Shares issued and proceeds received, for the three and six months ended June 30, 2023, through the “at-the-market” offering program (dollars in thousands except share and per share amounts). No Common Shares were issued through the “at-the-market” offering program during the three months ended March 31, 2023.
Issuances of Common SharesNumber of Common Shares IssuedGross ProceedsPlacement Fees/Offering Expenses
Net Proceeds (2)
Average Share Price (1)
“At-the-market” Offering4,632,768 $125,339 $68 $125,271 $27.04 
(1)Represents the net offering price per share after deducting placement fees and commissions and offering expenses.
(2)The Company received $0.3 million of proceeds subsequent to June 30, 2023 on July 5, 2023. The amount was recorded as Receivable for shares sold in the Condensed Consolidated Statement of Assets and Liabilities.
Dividends Declared
The following table summarizes the Company’s distributions declared and payable for the six months ended June 30, 2024 (dollars in thousands except per share amounts):
Date DeclaredRecord DatePayment DatePer Share AmountTotal Amount
February 28, 2024March 31, 2024April 26, 2024$0.7700 $147,743 
May 8, 2024June 30, 2024July 26, 20240.7700 152,706 
Total distributions$1.5400 $300,449 
The following table summarizes the Company’s distributions declared and payable for the six months ended June 30, 2023 (dollars in thousands except per share amounts):
Date DeclaredRecord DatePayment DatePer Share AmountTotal Amount
February 27, 2023March 31, 2023April 27, 2023$0.7000 $112,400 
May 10, 2023June 30, 2023July 27, 20230.7000 115,783 
Total distributions$1.4000 $228,183 
Schedule of Amounts Received and Shares Issued To Shareholders
Pursuant to our dividend reinvestment plan, the following table summarizes the amounts and shares issued to shareholders who have not opted out of the Company’s DRIP during the six months ended June 30, 2024 (dollars in thousands except share amounts):
Payment DateDRIP Shares ValueDRIP Shares Issued
January 26, 2024$5,614 206,465 
April 26, 2024$5,293 173,614 
Total distributions$10,907 380,079 
The following table summarizes the amounts and shares issued to shareholders who have not opted out of the Company's DRIP during the six months ended June 30, 2023 (dollars in thousands except share amounts):
Payment DateDRIP Shares ValueDRIP Shares Issued
January 31, 2023$5,132 208,510 
April 27, 2023$5,439 213,130 
Total distributions$10,571 421,640 
v3.24.2.u1
Earnings Per Share (Tables)
 6 Months Ended
Jun. 30, 2024
Earnings Per Share [Abstract]  
Schedule of Basic and Diluted Earnings Per Share
The following table sets forth the computation of basic and diluted earnings per share:
Three Months Ended June 30,Six Months Ended June 30,
2024202320242023
Net increase (decrease) in net assets resulting from operations$196,186 $144,850 $379,941 $283,648 
Weighted average shares outstanding (basic and diluted)193,908,352 161,079,263 192,254,100 160,792,160 
Earnings (loss) per common share (basic and diluted)$1.01 $0.90 $1.98 $1.76 
v3.24.2.u1
Financial Highlights and Senior Securities (Tables)
 6 Months Ended
Jun. 30, 2024
Investment Company [Abstract]  
Schedule of Financial Highlights
The following are the financial highlights for the six months ended June 30, 2024 and 2023:
Six Months Ended June 30,
 20242023
Per Share Data (1):
Net asset value, beginning of period$26.66 $25.93 
Net investment income
1.76 1.99 
Net change in unrealized and realized gain (loss)
0.21 (0.22)
Net increase (decrease) in net assets resulting from operations1.97 1.77 
Distributions declared (2)
(1.54)(1.40)
Net increase (decrease) in net assets from capital share transactions0.10 — 
Total increase (decrease) in net assets0.53 0.37 
Net asset value, end of period$27.19 $26.30 
Shares outstanding, end of period198,381,800 165,417,269 
Total return based on NAV (3)
7.3 %6.9 %
Total return based on market value (4)
16.8 %29.1 %
Ratios:
Ratio of net expenses to average net assets (5)
11.1 %11.5 %
Ratio of net investment income to average net assets (5)
12.9 %14.6 %
Portfolio turnover rate2.6 %2.3 %
Supplemental Data:
Net assets, end of period$5,394,573$4,350,271
Asset coverage ratio188.3 %186.9 %
(1)The per share data was derived by using the weighted average shares outstanding during the period.
(2)The per share data for distributions was derived by using the actual shares outstanding at the date of the relevant transactions (refer to Note 9).
(3)Total return is calculated as the change in NAV per share during the period, plus distributions per share (assuming dividends and distributions are reinvested in accordance with the Company's dividend reinvestment plan) divided by the beginning NAV per share. Total return does not include sales load.
(4)Total return based on market value is calculated as the change in market value per share during the respective periods, taking into account distributions, if any, reinvested in accordance with the Company’s dividend reinvestment plan.
(5)Amounts are annualized except for expense support amounts relating to organizational costs and management fee and income based incentive fee waivers by the Adviser (refer to Note 3). For the six months ended June 30, 2024 and 2023, the ratio of total operating expenses to average net assets was 11.1% and 12.0%, respectively, on an annualized basis, excluding the effect of expense support/(recoupment) and management fee and income based incentive fee waivers by the Adviser which represented 0.0% and (0.5)%, respectively, of average net assets. The Waiver Period ended on October 28, 2023.
v3.24.2.u1
Significant Accounting Policies (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Accounting Policies [Abstract]        
Interest income $ 400 $ 13,000 $ 2,300 $ 13,400
Excise tax expense $ 3,421 $ 4,979 $ 6,771 $ 7,601
v3.24.2.u1
Agreements and Related Party Transactions - Investment Advisory Agreement (Details) - Investment Advisory Agreement
May 01, 2024
Oct. 28, 2021
Oct. 18, 2021
May 06, 2021
May 06, 2020
Related Party Transaction [Line Items]          
Quarterly hurdle rate   1.50%      
Voluntary Waiver In Place          
Related Party Transaction [Line Items]          
Base management fee   0.75%      
Affiliated Entity          
Related Party Transaction [Line Items]          
Quarterly hurdle rate     1.50%    
Related party transaction, initial term     2 years    
Related party transaction, renewal term 1 year     1 year 1 year
Waiver period   2 years 2 years    
Affiliated Entity | Voluntary Waiver Not In Place          
Related Party Transaction [Line Items]          
Base management fee     1.00%    
Incentive fees rate     17.50%    
Affiliated Entity | Voluntary Waiver In Place          
Related Party Transaction [Line Items]          
Base management fee   0.75%      
Incentive fees rate   15.00%      
v3.24.2.u1
Agreements and Related Party Transactions - Base Management Fee (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended 32 Months Ended
Oct. 28, 2021
Oct. 18, 2021
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Dec. 31, 2023
Related Party Transaction [Line Items]                
Management fees     $ 28,094 $ 24,276 $ 54,134 $ 48,972    
Management fees waived     0 $ 6,069 0 $ 12,243    
Management fees payable     $ 28,094   $ 28,094   $ 28,094 $ 23,034
Investment Advisory Agreement                
Related Party Transaction [Line Items]                
Management fee rate   0.75%         1.00%  
Voluntary Waiver In Place | Investment Advisory Agreement                
Related Party Transaction [Line Items]                
Base management fee 0.75%              
v3.24.2.u1
Agreements and Related Party Transactions - Incentive Fees (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended 29 Months Ended
Oct. 28, 2021
Oct. 18, 2021
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Mar. 31, 2024
Dec. 31, 2023
Related Party Transaction [Line Items]                
Income based incentive fee payable     $ 37,380 $ 34,493 $ 73,225 $ 64,886    
Incentive fees waived     0 4,928 0 9,270    
Income based incentive fees payable     37,380   37,380     $ 34,373
Capital gains incentive fee payable     $ 3,122 $ (3,949) $ 6,256 $ (5,506)    
Investment Management Agreement - Incentive Rate, Quarterly Hurdle Rate | Affiliated Entity                
Related Party Transaction [Line Items]                
Incentive fees rate         1.50%      
Investment Management Agreement - Incentive Rate, Annualized Hurdle Rate | Affiliated Entity                
Related Party Transaction [Line Items]                
Incentive fees rate         6.00%      
Investment Advisory Agreement                
Related Party Transaction [Line Items]                
Income based incentive rate 17.50% 15.00%            
Quarterly hurdle rate 1.50%              
Incentive rate, catch up, percentage 100.00%              
Incentive rate, threshold 15.00%              
Capital gains based incentive rate   15.00%         17.50%  
Investment Advisory Agreement | Affiliated Entity                
Related Party Transaction [Line Items]                
Quarterly hurdle rate   1.50%            
Investment Advisory Agreement | Voluntary Waiver In Place                
Related Party Transaction [Line Items]                
Pre incentive fee cap percentage 15.00%              
Capital gains based incentive rate 15.00%              
Investment Advisory Agreement | Voluntary Waiver In Place | Affiliated Entity                
Related Party Transaction [Line Items]                
Incentive fees rate 15.00%              
Investment Advisory Agreement | Voluntary Waiver Not In Place                
Related Party Transaction [Line Items]                
Pre incentive fee cap percentage 17.50%              
Investment Advisory Agreement | Voluntary Waiver Not In Place | Affiliated Entity                
Related Party Transaction [Line Items]                
Incentive fees rate   17.50%            
Investment Advisory Agreement | Pre-Incentive Fee Net Investment Income For Trailing Twelve Quarters Less Than Or Equal To Catch-Up Amount                
Related Party Transaction [Line Items]                
Payment of pre incentive rate investment income, percentage 100.00%              
Investment Advisory Agreement | Pre-Incentive Fee Net Investment Income For Trailing Twelve Quarters Less Than Or Equal To Catch-Up Amount | Voluntary Waiver In Place                
Related Party Transaction [Line Items]                
Catch-up amount prior to the waiver period 1.76%              
Annual catch up amount prior to the waiver period 7.06%              
Investment Advisory Agreement | Pre-Incentive Fee Net Investment Income For Trailing Twelve Quarters Less Than Or Equal To Catch-Up Amount | Voluntary Waiver Not In Place                
Related Party Transaction [Line Items]                
Catch-up amount prior to the waiver period 1.82%              
Annual catch up amount prior to the waiver period 7.27%              
Investment Advisory Agreement | Pre-Incentive Fee Net Investment Income For Trailing Twelve Quarters Greater Than Catch-Up Amount | Voluntary Waiver In Place                
Related Party Transaction [Line Items]                
Payment of pre incentive rate investment income, percentage 15.00%              
Investment Advisory Agreement | Pre-Incentive Fee Net Investment Income For Trailing Twelve Quarters Greater Than Catch-Up Amount | Voluntary Waiver Not In Place                
Related Party Transaction [Line Items]                
Payment of pre incentive rate investment income, percentage 17.50%              
v3.24.2.u1
Agreements and Related Party Transactions - Administration Agreement (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Oct. 01, 2018
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Dec. 31, 2023
Related Party Transaction [Line Items]            
Administrative service expenses   $ 765 $ 675 $ 1,442 $ 1,054  
Affiliated Entity            
Related Party Transaction [Line Items]            
Due to affiliates   8,478   8,478   $ 8,925
Administration Agreement            
Related Party Transaction [Line Items]            
Related party transaction, initial term 2 years          
Administration Agreement | Affiliated Entity            
Related Party Transaction [Line Items]            
Due to affiliates   $ 900   $ 900   $ 1,100
v3.24.2.u1
Agreements and Related Party Transactions - Sub-Administration and Expense Support (Details) - Sub-Administration Agreement
Oct. 01, 2018
Related Party Transaction [Line Items]  
Related party transaction, initial term 2 years
Related party transaction, renewal term 1 year
Termination notice period 120 days
v3.24.2.u1
Agreements and Related Party Transactions - Expense Payments and Reimbursement Payments (Details) - USD ($)
 3 Months Ended 6 Months Ended
Dec. 12, 2018
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Dec. 31, 2023
Related Party Transaction [Line Items]            
Recoupment of expense support   $ 0 $ 0 $ 0 $ 0  
Affiliated Entity            
Related Party Transaction [Line Items]            
Due to affiliates   8,478,000   8,478,000   $ 8,925,000
Expense Support Agreement            
Related Party Transaction [Line Items]            
Expense payment period 45 days          
Expense Support Agreement | Affiliated Entity            
Related Party Transaction [Line Items]            
Due to affiliates   $ 0 $ 0 $ 0 $ 0  
v3.24.2.u1
Investments - Investment Portfolio at Cost and Fair Value (Details) - USD ($)
$ in Thousands
 6 Months Ended 12 Months Ended
Jun. 30, 2024
Dec. 31, 2023
Schedule of Investments [Line Items]    
Cost $ 11,330,469 $ 9,934,159
Fair Value $ 11,293,797 $ 9,868,440
Investment Owned, At Fair Value | Investment Type Concentration Risk    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 100.00% 100.00%
First lien debt    
Schedule of Investments [Line Items]    
Cost $ 11,208,575 [1],[2] $ 9,817,402 [3],[4]
Fair Value $ 11,141,918 [2] $ 9,722,061 [4]
First lien debt | Investment Owned, At Fair Value | Investment Type Concentration Risk    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 98.60% 98.50%
Second lien debt    
Schedule of Investments [Line Items]    
Cost $ 44,076 [1],[2] $ 43,347 [4]
Fair Value $ 41,985 [2] $ 41,515 [4]
Second lien debt | Investment Owned, At Fair Value | Investment Type Concentration Risk    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 0.40% 0.40%
Unsecured debt    
Schedule of Investments [Line Items]    
Cost $ 12,148 $ 9,930
Fair Value $ 12,278 $ 9,924
Unsecured debt | Investment Owned, At Fair Value | Investment Type Concentration Risk    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 0.10% 0.10%
Investments in equity    
Schedule of Investments [Line Items]    
Cost $ 65,670 [1],[2],[5],[6],[7] $ 63,480 [3],[4]
Fair Value $ 97,616 [2],[5],[6],[7] $ 94,940 [4]
Investments in equity | Investment Owned, At Fair Value | Investment Type Concentration Risk    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 0.90% 1.00%
[1] The cost represents the original cost adjusted for the amortization of discounts and premiums, as applicable, on debt investments using the effective interest method in accordance with accounting principles generally accepted in the United States of America (“GAAP”).
[2] Unless otherwise indicated, all debt and equity investments held by the Company (which such term “Company” shall include the Company’s consolidated subsidiaries for purposes of this Consolidated Schedule of Investments) are denominated in dollars. As of June 30, 2024, the Company had investments denominated in Canadian Dollars (CAD), Euros (EUR), British Pounds (GBP), Danish Krone (DKK), Swedish Krona (SEK), Norwegian Krone (NOK), and Australian Dollars (AUD). All debt investments are income producing unless otherwise indicated. All equity investments are non-income producing unless otherwise noted. Certain portfolio company investments are subject to contractual restrictions on sales. The total par amount (in thousands) is presented for debt investments, while the number of shares or units (in whole amounts) owned is presented for equity investments. Each of the Company’s investments is pledged as collateral, under one or more of its credit facilities unless otherwise indicated.
[3] The cost represents the original cost adjusted for the amortization of discounts and premiums, as applicable, on debt investments using the effective interest method in accordance with accounting principles generally accepted in the United States of America (“GAAP”).
[4] Unless otherwise indicated, all debt and equity investments held by the Company (which such term “Company” shall include the Company’s consolidated subsidiaries for purposes of this Consolidated Schedule of Investments) are denominated in dollars. As of December 31, 2023, the Company had investments denominated in Canadian Dollars (CAD), Euros (EUR), British Pounds (GBP), Danish Krone (DKK), Swedish Krona (SEK), and Norwegian Krone (NOK). All debt investments are income producing unless otherwise indicated. All equity investments are non-income producing unless otherwise noted. Certain portfolio company investments are subject to contractual restrictions on sales. The total par amount (in thousands) is presented for debt investments, while the number of shares or units (in whole amounts) owned is presented for equity investments. Each of the Company’s investments is pledged as collateral, under one or more of its credit facilities unless otherwise indicated.
[5] Under the 1940 Act, the Company would be deemed to “control” a portfolio company if the Company owned more than 25% of its outstanding voting securities and/or held the power to exercise control over the management or policies of the portfolio company. Under the 1940 Act, the Company would be deemed an “affiliated person” of a portfolio company if the Company owns 5% or more of the portfolio company’s outstanding voting securities. As of June 30, 2024, the Company’s non-controlled/affiliated investments were as follows:
Fair Value as of December 31, 2023
Gross AdditionsGross Reductions
Net Change in Unrealized Gains (Losses)
Net Realized Gain (Loss)
Fair Value as of June 30, 2024
Dividend and Interest Income
Non-controlled/Affiliated Investments
Blackstone Donegal Holdings LP$5,790 $— $— $937 $— $6,727 $— 
Material Holdings, LLC— 20,443 — 201 — 20,644 110 
Material Holdings, LLC— 4,968 — (1,931)— 3,037 27 
Material+ Holding Company, LLC— — — — — — — 
Total$5,790 $25,411 $— $(793)$— $30,408 $137 
[6] The investment is not a qualifying asset under Section 55(a) of the Investment Company Act of 1940, as amended (together with the rules and regulations promulgated thereunder, the “1940 Act”). The Company may not acquire any non-qualifying asset unless, at the time of acquisition, qualifying assets represent at least 70% of the Company’s total assets. As of June 30, 2024, non-qualifying assets represented 11.7% of total assets as calculated in accordance with regulatory requirements.
[7] These investments were valued using unobservable inputs and are considered Level 3 investments. Fair value was determined in good faith by or under the direction of the Board of Trustees (see Note 2), pursuant to the Company’s valuation policy.
v3.24.2.u1
Investments - Investments at Fair Value Percent (Details) - Investment Owned, At Fair Value - Investment Type Concentration Risk
 6 Months Ended 12 Months Ended
Jun. 30, 2024
Dec. 31, 2023
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 100.00% 100.00%
Aerospace & Defense    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 5.00% 5.20%
Air Freight & Logistics    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 3.60% 4.20%
Auto Components    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 0.00% 0.00%
Building Products    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 2.80% 3.20%
Chemicals    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 0.40% 0.10%
Commercial Services & Supplies    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 7.10% 7.80%
Construction & Engineering    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 0.50% 0.50%
Containers & Packaging    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 0.20% 0.20%
Distributors    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 5.10% 5.70%
Diversified Consumer Services    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 4.00% 3.90%
Diversified Financial Services    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 1.30% 1.40%
Diversified Telecommunication Services    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 1.20% 1.40%
Electrical Equipment    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 0.40% 1.10%
Electronic Equipment, Instruments & Components    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 1.10% 1.30%
Electric Utilities    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 0.60% 0.60%
Energy Equipment & Services    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 0.20% 0.40%
Ground Transportation    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 0.00% 0.20%
Health Care Equipment & Supplies    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 0.70% 0.60%
Health Care Providers & Services    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 10.50% 10.70%
Health Care Technology    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 4.90% 5.10%
Industrial Conglomerates    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 0.10% 0.10%
Insurance    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 5.50% 5.40%
Internet & Direct Marketing Retail    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 2.80% 3.20%
IT Services    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 4.30% 2.90%
Machinery    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 0.00% 0.00%
Marine    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 0.50% 0.30%
Media    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 0.60% 0.10%
Oil, Gas & Consumable Fuels    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 0.90% 1.00%
Paper & Forest Products    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 0.10% 0.10%
Pharmaceuticals    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 0.20% 0.20%
Professional Services    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 8.90% 7.80%
Real Estate Management & Development    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 0.90% 0.90%
Software    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 18.40% 17.40%
Specialty Retail    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 1.50% 1.70%
Technology Hardware, Storage & Peripherals    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 0.70% 0.80%
Trading Companies & Distributors    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 1.20% 0.50%
Transportation Infrastructure    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 3.80% 4.00%
v3.24.2.u1
Investments - Geographic Investment (Details) - USD ($)
$ in Thousands
 6 Months Ended 12 Months Ended
Jun. 30, 2024
Dec. 31, 2023
Schedule of Investments [Line Items]    
Cost $ 11,330,469 $ 9,934,159
Fair Value $ 11,293,797 $ 9,868,440
Fair Value as % of Net Assets 209.30% 199.30%
Investment Owned, At Fair Value | Investment Type Concentration Risk    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 100.00% 100.00%
United States    
Schedule of Investments [Line Items]    
Cost $ 10,439,866 $ 9,381,707
Fair Value $ 10,411,725 $ 9,317,684
Fair Value as % of Net Assets 193.00% 188.20%
United States | Investment Owned, At Fair Value | Investment Type Concentration Risk    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 92.20% 94.40%
Canada    
Schedule of Investments [Line Items]    
Cost $ 283,618 $ 275,579
Fair Value $ 287,155 $ 278,103
Fair Value as % of Net Assets 5.30% 5.60%
Canada | Investment Owned, At Fair Value | Investment Type Concentration Risk    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 2.50% 2.80%
Bermuda/Cayman Islands    
Schedule of Investments [Line Items]    
Cost $ 436 $ 436
Fair Value $ 569 $ 473
Fair Value as % of Net Assets 0.00% 0.00%
Bermuda/Cayman Islands | Investment Owned, At Fair Value | Investment Type Concentration Risk    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 0.00% 0.00%
Europe    
Schedule of Investments [Line Items]    
Cost $ 605,908 $ 276,437
Fair Value $ 593,697 $ 272,180
Fair Value as % of Net Assets 11.00% 5.50%
Europe | Investment Owned, At Fair Value | Investment Type Concentration Risk    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 5.30% 2.80%
Asia    
Schedule of Investments [Line Items]    
Cost $ 641  
Fair Value $ 651  
Fair Value as % of Net Assets 0.00%  
Asia | Investment Owned, At Fair Value | Investment Type Concentration Risk    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 0.00%  
v3.24.2.u1
Investments - Additional Information (Details)
 6 Months Ended 12 Months Ended
Jun. 30, 2024
loan
borrower
Dec. 31, 2023
borrower
loan
Schedule of Investments [Line Items]    
Number of borrowers | borrower 2 1,000
Number of loans in non-accrual status | loan 4 2,000
Debt Securities, Variable Rate | Investments At Fair Value | Investment Type Concentration Risk    
Schedule of Investments [Line Items]    
Concentration percentage 99.80% 99.90%
Debt Securities, Fixed Rate | Investments At Fair Value | Investment Type Concentration Risk    
Schedule of Investments [Line Items]    
Concentration percentage 0.20% 0.10%
v3.24.2.u1
Fair Value Measurements - Fair Value Hierarchy of Financial Instruments (Details) - USD ($)
$ in Thousands
Jun. 30, 2024
Dec. 31, 2023
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total $ 11,293,797 $ 9,868,440
First lien debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total 11,141,918 9,722,061
Second lien debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total 41,985 41,515
Unsecured debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total 12,278 9,924
Investments in equity    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total 97,616 94,940
Level 1    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total 0 0
Level 1 | First lien debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total 0 0
Level 1 | Second lien debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total 0 0
Level 1 | Unsecured debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total 0 0
Level 1 | Investments in equity    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total 0 0
Level 2    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total 165,951 157,858
Level 2 | First lien debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total 165,951 157,858
Level 2 | Second lien debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total 0 0
Level 2 | Unsecured debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total 0 0
Level 2 | Investments in equity    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total 0 0
Level 3    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total 11,127,846 9,710,582
Level 3 | First lien debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total 10,975,967 9,564,203
Level 3 | Second lien debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total 41,985 41,515
Level 3 | Unsecured debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total 12,278 9,924
Level 3 | Investments in equity    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total $ 97,616 $ 94,940
v3.24.2.u1
Fair Value Measurements - Summary of Changes in Fair Value of Investments Measured Using Level 3 Inputs (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Mar. 31, 2024
Dec. 31, 2023
Mar. 31, 2023
Dec. 31, 2022
Total Investments                
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]                
Fair value, beginning of period $ 11,127,846 $ 9,085,022 $ 11,127,846 $ 9,085,022 $ 10,330,365 $ 9,710,582 $ 9,426,489 $ 9,472,796
Purchases of investments 906,931 130,153 1,644,649 243,445        
Proceeds from principal repayments and sales of investments (87,920) (465,601) (272,398) (535,195)        
Accretion of discount/(amortization of premium) 9,261 20,670 18,606 29,015        
Transfers into level 3 0 0 0 4,938        
Transfers out of level 3 (51,434) 0 (802) (91,939)        
Fair value, end of period 11,127,846 9,085,022 11,127,846 9,085,022        
Net change in unrealized appreciation (depreciation) included in earnings related to financial instruments, included in net unrealized appreciation (depreciation) on the condensed consolidated statements of operations 20,059 (21,226) 29,126 (37,192)        
Investments, Realized Gain (Loss)                
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]                
Net realized gain (loss) 195 (809) 623 (762)        
Investments, Unrealized Gain (Loss)                
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]                
Net realized gain (loss) 20,448 (25,880) 26,586 (37,276)        
First lien debt                
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]                
Fair value, beginning of period 10,975,967 8,934,769 10,975,967 8,934,769 10,178,311 9,564,203 9,225,290 9,275,511
Purchases of investments 906,014 129,728 1,639,580 242,609        
Proceeds from principal repayments and sales of investments (87,920) (414,400) (272,398) (483,996)        
Accretion of discount/(amortization of premium) 9,227 20,635 18,538 28,945        
Transfers into level 3 0 0 0 4,938        
Transfers out of level 3 (51,434) 0 (802) (91,939)        
Fair value, end of period 10,975,967 8,934,769 10,975,967 8,934,769        
Net change in unrealized appreciation (depreciation) included in earnings related to financial instruments, included in net unrealized appreciation (depreciation) on the condensed consolidated statements of operations 21,185 (13,715) 28,769 (33,078)        
Debt Securities, First Lien, Realized Gain (Loss)                
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]                
Net realized gain (loss) 195 (7,972) 623 (7,925)        
Debt Securities, First Lien, Unrealized Gain (Loss)                
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]                
Net realized gain (loss) 21,574 (18,512) 26,223 (33,374)        
Second lien debt                
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]                
Fair value, beginning of period 41,985 40,086 41,985 40,086 41,515 41,515 46,678 46,336
Purchases of investments 501 425 681 836        
Proceeds from principal repayments and sales of investments 0 (7,351) 0 (7,350)        
Accretion of discount/(amortization of premium) 23 35 48 70        
Transfers into level 3 0 0 0 0        
Transfers out of level 3 0 0 0 0        
Fair value, end of period 41,985 40,086 41,985 40,086        
Net change in unrealized appreciation (depreciation) included in earnings related to financial instruments, included in net unrealized appreciation (depreciation) on the condensed consolidated statements of operations (54) 205 (259) 31        
Debt Securities, Second Lien, Realized Gain (Loss)                
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]                
Net realized gain (loss) 0 (49) 0 (49)        
Debt Securities, Second Lien, Unrealized Gain (Loss)                
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]                
Net realized gain (loss) (54) 348 (259) 243        
Unsecured debt                
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]                
Fair value, beginning of period 12,278   12,278   11,859 9,924    
Purchases of investments 413   2,198          
Proceeds from principal repayments and sales of investments 0   0          
Accretion of discount/(amortization of premium) 11   20          
Transfers into level 3 0   0          
Transfers out of level 3 0   0          
Fair value, end of period 12,278   12,278          
Net change in unrealized appreciation (depreciation) included in earnings related to financial instruments, included in net unrealized appreciation (depreciation) on the condensed consolidated statements of operations (5)   130          
Unsecured Debt, Realized Gain (Loss)                
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]                
Net realized gain (loss) 0   0          
Unsecured Debt, Unrealized Gain (Loss)                
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]                
Net realized gain (loss) (5)   136          
Investments in equity                
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]                
Fair value, beginning of period 97,616 110,167 97,616 110,167 $ 98,680 $ 94,940 $ 154,521 $ 150,949
Purchases of investments 3 0 2,190 0        
Proceeds from principal repayments and sales of investments 0 (43,850) 0 (43,849)        
Accretion of discount/(amortization of premium) 0 0 0 0        
Transfers into level 3 0 0 0 0        
Transfers out of level 3 0 0 0 0        
Fair value, end of period 97,616 110,167 97,616 110,167        
Net change in unrealized appreciation (depreciation) included in earnings related to financial instruments, included in net unrealized appreciation (depreciation) on the condensed consolidated statements of operations (1,067) (7,716) 486 (4,145)        
Equity Securities, Realized Gain (Loss)                
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]                
Net realized gain (loss) 0 7,212 0 7,212        
Equity Securities, Unrealized Gain (Loss)                
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]                
Net realized gain (loss) $ (1,067) $ (7,716) $ 486 $ (4,145)        
v3.24.2.u1
Fair Value Measurements - Unobservable Inputs (Details)
$ in Thousands
Jun. 30, 2024
USD ($)
Dec. 31, 2023
USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 11,293,797 $ 9,868,440
Level 3    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 11,127,846 9,710,582
First lien debt | Level 3    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 10,975,967 9,564,203
First lien debt | Yield Analysis | Level 3    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 10,892,028 9,533,700
First lien debt | Asset Recoverability | Level 3    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 76,835 $ 30,503
First lien debt | Valuation, Market Quotations | Level 3    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 7,104  
First lien debt | Low | Yield Analysis | Level 3 | Discount Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.0783 0.0768
First lien debt | Low | Asset Recoverability | Level 3 | Market Multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 8 10.5
First lien debt | Low | Valuation, Market Quotations | Level 3 | Broker quoted price    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 99.75  
First lien debt | High | Yield Analysis | Level 3 | Discount Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.3050 0.3089
First lien debt | High | Asset Recoverability | Level 3 | Market Multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 11.5 10.5
First lien debt | High | Valuation, Market Quotations | Level 3 | Broker quoted price    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 99.75  
First lien debt | Weighted Average | Yield Analysis | Level 3 | Discount Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.1031 0.1031
First lien debt | Weighted Average | Asset Recoverability | Level 3 | Market Multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 10.02 10.5
First lien debt | Weighted Average | Valuation, Market Quotations | Level 3 | Broker quoted price    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 99.75  
Second lien debt | Yield Analysis | Level 3    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 41,985 $ 41,515
Second lien debt | Low | Yield Analysis | Level 3 | Discount Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.0963 0.1018
Second lien debt | High | Yield Analysis | Level 3 | Discount Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.1528 0.1438
Second lien debt | Weighted Average | Yield Analysis | Level 3 | Discount Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.1301 0.1269
Unsecured debt | Yield Analysis | Level 3    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 12,278 $ 9,924
Unsecured debt | Low | Yield Analysis | Level 3 | Discount Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 12.87 0.1490
Unsecured debt | High | Yield Analysis | Level 3 | Discount Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 13.96 0.1490
Unsecured debt | Weighted Average | Yield Analysis | Level 3 | Discount Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 13.82 0.1490
Investments in equity | Level 3    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 97,616 $ 94,940
Investments in equity | Yield Analysis | Level 3    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 6,832 6,402
Investments in equity | Market Approach | Level 3    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 63,574 60,007
Investments in equity | Option Pricing Model | Level 3    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 27,210 $ 28,531
Investments in equity | Low | Yield Analysis | Level 3 | Discount Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.1188 0.1075
Investments in equity | Low | Market Approach | Level 3 | Performance Multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 6.44 6.40
Investments in equity | Low | Option Pricing Model | Level 3 | Expected Volatility    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.3200 0.3200
Investments in equity | High | Yield Analysis | Level 3 | Discount Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.1794 0.1792
Investments in equity | High | Market Approach | Level 3 | Performance Multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 30 30.00
Investments in equity | High | Option Pricing Model | Level 3 | Expected Volatility    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.5500 0.5500
Investments in equity | Weighted Average | Yield Analysis | Level 3 | Discount Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.1443 0.1417
Investments in equity | Weighted Average | Market Approach | Level 3 | Performance Multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 12.18 11.47
Investments in equity | Weighted Average | Option Pricing Model | Level 3 | Expected Volatility    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.4410 0.4286
v3.24.2.u1
Fair Value Measurements - Schedule of Fair Value Measurements of Unsecured Notes (Details) - Level 3 - Unsecured debt - USD ($)
$ in Thousands
Jun. 30, 2024
Dec. 31, 2023
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair value of debt $ 2,970,900 $ 2,551,661
2026 Notes    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair value of debt 768,048 763,085
New 2026 Notes    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair value of debt 648,214 643,814
2027 Notes    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair value of debt 587,191 583,633
2028 Notes    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair value of debt 570,187 561,129
November 2027 Notes    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair value of debt $ 397,260 $ 0
v3.24.2.u1
Derivatives - Schedule of Aggregate Notional Amount and Fair Value Hierarchy of the Company (Details) - USD ($)
$ in Thousands
Jun. 30, 2024
Dec. 31, 2023
Derivative Assets    
Derivative asset $ 2,015 $ 0
Notional 400,000  
Cash collateral received 0  
Derivative Liabilities    
Derivative liabilities 0  
Notional 0  
Cash collateral posted 1,770  
Level 1    
Derivative Assets    
Derivative asset 0  
Derivative Liabilities    
Derivative liabilities 0  
Level 2    
Derivative Assets    
Derivative asset 2,015  
Derivative Liabilities    
Derivative liabilities 0  
Level 3    
Derivative Assets    
Derivative asset 0  
Derivative Liabilities    
Derivative liabilities 0  
Interest Rate Swap    
Derivative Assets    
Derivative asset 2,015  
Notional 400,000  
Derivative Liabilities    
Derivative liabilities 0  
Notional 0  
Interest Rate Swap | Level 1    
Derivative Assets    
Derivative asset 0  
Derivative Liabilities    
Derivative liabilities 0  
Interest Rate Swap | Level 2    
Derivative Assets    
Derivative asset 2,015  
Interest Rate Swap | Level 3    
Derivative Assets    
Derivative asset $ 0  
v3.24.2.u1
Derivatives - Schedule of Interest Rate Swaps as the Hedging Instrument (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Derivative [Line Items]        
Interest rate swaps $ 2,015 $ 0 $ 2,015 $ 0
Hedged items (1,432) 0 (1,432) 0
Interest Rate Swap        
Derivative [Line Items]        
Interest rate swaps 2,015 0 2,015 0
Hedged items $ (1,432) $ 0 $ (1,432) $ 0
v3.24.2.u1
Derivatives - Schedule of Carrying Value of Unsecured Borrowings (Details) - Long-Term Debt - USD ($)
$ in Thousands
Jun. 30, 2024
Dec. 31, 2023
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Carrying Value $ 394,417 $ 0
Cumulative Hedging Adjustments $ 1,432 $ 0
v3.24.2.u1
Borrowings - Jackson Hole Funding Facility (Details)
Dec. 18, 2023
Jun. 30, 2024
USD ($)
Jun. 30, 2024
EUR (€)
Dec. 31, 2023
USD ($)
Dec. 31, 2023
EUR (€)
Jun. 30, 2023
Debt Instrument [Line Items]            
Asset coverage ratio   188.30% 188.30% 200.30% 200.30% 186.90%
Jackson Hole Funding Facility, Foreign Currency Advances | Line of Credit | Revolving Credit Facility            
Debt Instrument [Line Items]            
Basis spread on variable rate 2.375%          
Jackson Hole Funding Facility, Dollar Advances | Line of Credit | Revolving Credit Facility            
Debt Instrument [Line Items]            
Basis spread on variable rate 2.525%          
Jackson Hole Funding Facility | Line of Credit | Revolving Credit Facility            
Debt Instrument [Line Items]            
Unused capacity, commitment fee percentage 0.48%          
Line of credit facility, maximum borrowing capacity   $ 500,000,000 € 0 $ 500,000,000 € 0  
Accordion feature   $ 900,000,000.0        
v3.24.2.u1
Borrowings - Breckenridge Funding Facility (Details) - Revolving Credit Facility - Breckenridge Funding Facility - Line of Credit
Jan. 17, 2024
Scenario 1  
Debt Instrument [Line Items]  
Unused capacity, commitment fee percentage 0.70%
Scenario 2  
Debt Instrument [Line Items]  
Unused capacity, commitment fee percentage 0.35%
High | Scenario 1  
Debt Instrument [Line Items]  
Unused capacity percentage 50.00%
High | Scenario 2  
Debt Instrument [Line Items]  
Unused capacity percentage 50.00%
Low | Scenario 2  
Debt Instrument [Line Items]  
Unused capacity percentage 25.00%
Scenario 1  
Debt Instrument [Line Items]  
Basis spread on variable rate 1.70%
Scenario 2  
Debt Instrument [Line Items]  
Basis spread on variable rate 2.05%
Scenario 3  
Debt Instrument [Line Items]  
Basis spread on variable rate 2.30%
v3.24.2.u1
Borrowings - Big Sky Funding Facility (Details) - Revolving Credit Facility - Big Sky Funding Facility - Line of Credit
Jun. 25, 2024
Debt Instrument [Line Items]  
Basis spread on variable rate 1.80%
Minimum utilization percentage 80.00%
Low  
Debt Instrument [Line Items]  
Basis spread on variable rate 2.10%
High  
Debt Instrument [Line Items]  
Basis spread on variable rate 2.45%
Scenario 1  
Debt Instrument [Line Items]  
Unused capacity, commitment fee percentage 1.60%
Scenario 2  
Debt Instrument [Line Items]  
Unused capacity, commitment fee percentage 0.45%
v3.24.2.u1
Borrowings - Revolving Credit Facility (Details) - Line of Credit
€ in Millions, £ in Millions, $ in Millions, $ in Millions
Jun. 12, 2024
USD ($)
Jun. 30, 2024
USD ($)
Jun. 30, 2024
EUR (€)
Jun. 30, 2024
CAD ($)
Jun. 30, 2024
GBP (£)
Jun. 30, 2024
AUD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2023
EUR (€)
Dec. 31, 2023
CAD ($)
Dec. 31, 2023
GBP (£)
Jun. 09, 2023
Term Loan | Revolving Credit Facility                      
Debt Instrument [Line Items]                      
Line of credit facility, maximum borrowing capacity $ 385,000,000.0                    
Letter of Credit | Revolving Credit Facility                      
Debt Instrument [Line Items]                      
Line of credit facility, maximum borrowing capacity 175,000,000.0                    
Letter of Credit | CitiBank, Revolving Credit Facility, Foreign Currency Commitments 2026                      
Debt Instrument [Line Items]                      
Line of credit facility, maximum borrowing capacity 200,000,000.0                    
Letter of Credit | CitiBank, Revolving Credit Facility, Foreign Currency Commitments 2027                      
Debt Instrument [Line Items]                      
Line of credit facility, maximum borrowing capacity $ 200,000,000.0                    
Revolving Credit Facility                      
Debt Instrument [Line Items]                      
Asset coverage ratio                     1.50
Revolving Credit Facility | Revolving Credit Facility                      
Debt Instrument [Line Items]                      
Line of credit facility, maximum borrowing capacity   $ 1,775,000,000 € 191.1 $ 12.0 £ 185.1 $ 1.0 $ 1,775,000,000 € 94.4 $ 1.0 £ 66.9  
Unused capacity, commitment fee percentage 0.375%                    
Revolving Credit Facility | Scenario 1 | Revolving Credit Facility                      
Debt Instrument [Line Items]                      
Basis spread on variable rate 0.75%                    
Combined revolving debt amount multiplier 1.6                    
Revolving Credit Facility | Scenario 2 | Revolving Credit Facility                      
Debt Instrument [Line Items]                      
Basis spread on variable rate 0.875%                    
Combined revolving debt amount multiplier 1.6                    
Revolving Credit Facility | Scenario 3 | Revolving Credit Facility                      
Debt Instrument [Line Items]                      
Basis spread on variable rate 1.75%                    
Combined revolving debt amount multiplier 1.6                    
Revolving Credit Facility | Scenario 4 | Revolving Credit Facility                      
Debt Instrument [Line Items]                      
Basis spread on variable rate 1.875%                    
Combined revolving debt amount multiplier 1.6                    
Revolving Credit Facility | Base Rate | Revolving Credit Facility                      
Debt Instrument [Line Items]                      
Basis spread on variable rate 0.50%                    
Revolving Credit Facility | SOFR | Revolving Credit Facility                      
Debt Instrument [Line Items]                      
Basis spread on variable rate 1.00%                    
v3.24.2.u1
Borrowings - Unsecured Debt (Details) - USD ($)
 6 Months Ended
Jun. 30, 2024
May 20, 2024
Dec. 31, 2023
Sep. 30, 2021
Jul. 23, 2021
Apr. 27, 2021
Mar. 16, 2021
Dec. 01, 2020
Oct. 23, 2020
Debt Instrument [Line Items]                  
Aggregate principal amount $ 7,000,000,000   $ 6,600,000,000            
Unsecured debt                  
Debt Instrument [Line Items]                  
Redemption percentage 100.00%                
Unsecured debt | 3.625% Notes Due 2026                  
Debt Instrument [Line Items]                  
Aggregate principal amount $ 800,000,000   800,000,000         $ 300,000,000.0 $ 500,000,000.0
Interest rate               3.625% 3.625%
Unsecured debt | 2.750% Notes Due 2026                  
Debt Instrument [Line Items]                  
Aggregate principal amount 700,000,000   700,000,000     $ 300,000,000.0 $ 400,000,000.0    
Interest rate           2.75% 2.75%    
Unsecured debt | 2.125% Senior Notes Due 2027                  
Debt Instrument [Line Items]                  
Aggregate principal amount 650,000,000   650,000,000   $ 650,000,000.0        
Interest rate         2.125%        
Unsecured debt | 2.850% Notes Due 2028                  
Debt Instrument [Line Items]                  
Aggregate principal amount 650,000,000   $ 650,000,000 $ 650,000,000.0          
Interest rate       2.85%          
Unsecured debt | 5.875% Notes Due 2027                  
Debt Instrument [Line Items]                  
Aggregate principal amount $ 400,000,000 $ 400,000,000.0              
Interest rate   5.875%              
v3.24.2.u1
Borrowings - Outstanding Debt Obligations (Details)
£ in Millions, $ in Millions, $ in Millions
Jun. 30, 2024
USD ($)
Jun. 30, 2024
EUR (€)
Jun. 30, 2024
CAD ($)
Jun. 30, 2024
GBP (£)
Jun. 30, 2024
AUD ($)
May 20, 2024
USD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2023
EUR (€)
Dec. 31, 2023
CAD ($)
Dec. 31, 2023
GBP (£)
Sep. 30, 2021
USD ($)
Jul. 23, 2021
USD ($)
Apr. 27, 2021
USD ($)
Mar. 16, 2021
USD ($)
Dec. 01, 2020
USD ($)
Oct. 23, 2020
USD ($)
Debt Instrument [Line Items]                                
Aggregate Principal Committed $ 7,000,000,000           $ 6,600,000,000                  
Outstanding Principal 6,111,716,000           4,937,883,000                  
Carrying Value 6,084,261,000           4,911,930,000                  
Unamortized Debt Issuance Costs 28,887,000           25,953,000                  
Unused portion 888,284,000           1,662,117,000                  
Amount available 888,284,000           1,662,037,000                  
Jackson Hole Funding Facility | Line of Credit | Revolving Credit Facility                                
Debt Instrument [Line Items]                                
Aggregate Principal Committed 500,000,000 € 0         500,000,000 € 0                
Outstanding Principal 399,874,000           233,019,000                  
Carrying Value 399,874,000           233,019,000                  
Unused portion 100,126,000           266,981,000                  
Amount available 100,126,000           266,981,000                  
Breckenridge Funding Facility | Line of Credit | Revolving Credit Facility                                
Debt Instrument [Line Items]                                
Aggregate Principal Committed 1,025,000,000           1,025,000,000                  
Outstanding Principal 768,350,000           741,700,000                  
Carrying Value 768,350,000           741,700,000                  
Unused portion 256,650,000           283,300,000                  
Amount available 256,650,000           283,300,000                  
Big Sky Funding Facility | Line of Credit | Revolving Credit Facility                                
Debt Instrument [Line Items]                                
Aggregate Principal Committed 500,000,000           500,000,000                  
Outstanding Principal 400,000,000           480,906,000                  
Carrying Value 400,000,000           480,906,000                  
Unused portion 100,000,000           19,094,000                  
Amount available 100,000,000           19,094,000                  
Revolving Credit Facility | Line of Credit | Revolving Credit Facility                                
Debt Instrument [Line Items]                                
Aggregate Principal Committed 1,775,000,000 € 191,100,000 $ 12.0 £ 185.1 $ 1.0   1,775,000,000 € 94,400,000 $ 1.0 £ 66.9            
Outstanding Principal 1,343,492,000           682,258,000                  
Carrying Value 1,343,492,000           682,258,000                  
Unused portion 431,508,000           1,092,742,000                  
Amount available 431,508,000           1,092,662,000                  
3.625% Notes Due 2026 | Unsecured debt                                
Debt Instrument [Line Items]                                
Aggregate Principal Committed 800,000,000           800,000,000               $ 300,000,000.0 $ 500,000,000.0
Outstanding Principal 800,000,000           800,000,000                  
Carrying Value 797,236,000           796,343,000                  
Unamortized Debt Issuance Costs 2,764,000           3,657,000                  
2.750% Notes Due 2026 | Unsecured debt                                
Debt Instrument [Line Items]                                
Aggregate Principal Committed 700,000,000           700,000,000           $ 300,000,000.0 $ 400,000,000.0    
Outstanding Principal 700,000,000           700,000,000                  
Carrying Value 696,088,000           695,206,000                  
Unamortized Debt Issuance Costs 3,912,000           4,794,000                  
2.125% Senior Notes Due 2027 | Unsecured debt                                
Debt Instrument [Line Items]                                
Aggregate Principal Committed 650,000,000           650,000,000         $ 650,000,000.0        
Outstanding Principal 650,000,000           650,000,000                  
Carrying Value 642,782,000           641,412,000                  
Unamortized Debt Issuance Costs 7,218,000           8,588,000                  
2.850% Notes Due 2028 | Unsecured debt                                
Debt Instrument [Line Items]                                
Aggregate Principal Committed 650,000,000           650,000,000       $ 650,000,000.0          
Outstanding Principal 650,000,000           650,000,000                  
Carrying Value 642,022,000           641,086,000                  
Unamortized Debt Issuance Costs 7,978,000           $ 8,914,000                  
5.875% Notes Due 2027 | Unsecured debt                                
Debt Instrument [Line Items]                                
Aggregate Principal Committed 400,000,000         $ 400,000,000.0                    
Outstanding Principal 400,000,000                              
Carrying Value 394,417,000                              
Unamortized Debt Issuance Costs $ 7,015,000                              
v3.24.2.u1
Borrowings - Additional Information (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Dec. 31, 2023
Debt Disclosure [Abstract]          
Interest expense $ 43.5   $ 43.5   $ 38.7
Unused commitment fees $ 0.8   $ 0.8   $ 1.2
Weighted average interest rate 5.26% 4.84% 5.18% 4.80%  
Weighted average interest rate all-in 5.38% 4.96% 5.31% 4.91%  
Average principal debt outstanding $ 5,798.8 $ 5,377.6 $ 5,422.5 $ 5,497.8  
v3.24.2.u1
Borrowings - Interest Expense (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Debt Disclosure [Abstract]        
Borrowing interest expense $ 74,511 $ 61,128 $ 135,676 $ 123,253
Facility unused fees 927 1,108 2,743 2,037
Amortization of deferred financing costs 1,705 1,334 3,403 2,459
Amortization of original issue discount and debt issuance costs 2,281 2,578 4,321 5,127
Gain (loss) from interest rate swaps accounted for as hedges and the related hedged items:        
Interest rate swaps (2,015) 0 (2,015) 0
Hedged items 1,432 0 1,432 0
Interest expense 78,841 66,148 145,560 132,876
Cash paid for interest expense $ 61,034 $ 37,501 $ 133,658 $ 126,014
v3.24.2.u1
Commitment and Contingencies (Details) - USD ($)
$ in Millions
Jun. 30, 2024
Dec. 31, 2023
Other Commitments [Line Items]    
Estimated future amount $ 260.6 $ 221.3
Delayed Draw Term Loans And Revolvers    
Other Commitments [Line Items]    
Unfunded commitments $ 1,746.2 $ 985.9
v3.24.2.u1
Net Assets - Subscriptions and Drawdowns (Details) - USD ($)
$ / shares in Units, $ in Millions
Aug. 18, 2023
Aug. 14, 2023
Nov. 04, 2021
Oct. 18, 2021
Jun. 30, 2024
Dec. 31, 2023
Oct. 28, 2021
Subsidiary or Equity Method Investee [Line Items]              
Common stock, par value (in usd per share)         $ 0.001 $ 0.001  
IPO              
Subsidiary or Equity Method Investee [Line Items]              
Number of common shares issued (in shares)       9,180,000      
Offering price per share (in usd per share)             $ 26,150,000
Proceeds from offering       $ 230.6      
Over-Allotment Option              
Subsidiary or Equity Method Investee [Line Items]              
Number of common shares issued (in shares) 975,000 6,500,000 1,377,000        
Offering price per share (in usd per share)   $ 26.78          
Proceeds from offering $ 26.1 $ 174.1 $ 33.8        
Offering expenses $ 0.4            
v3.24.2.u1
Net Assets - Schedule of Shares Issued and Proceeds Received (Details)
 3 Months Ended 6 Months Ended
Jul. 01, 2024
USD ($)
Jul. 05, 2023
USD ($)
Jun. 30, 2024
USD ($)
equity_distribution_agreement
$ / shares
shares
Jun. 30, 2024
USD ($)
equity_distribution_agreement
$ / shares
shares
Jun. 30, 2023
USD ($)
$ / shares
shares
Subsidiary, Sale of Stock [Line Items]          
Number of agreements | equity_distribution_agreement     6 6  
Aggregate sales price     $ 500,000,000.0 $ 500,000,000.0  
Remaining available for issuance     $ 309,000,000.0 309,000,000.0  
Net proceeds       $ 350,237,000 $ 124,933,000
At-the-Market Offering, Offering          
Subsidiary, Sale of Stock [Line Items]          
Number of common shares issued (in shares) | shares     6,333,768   4,632,768
Gross proceeds     $ 190,966,000   $ 125,339,000
Placement Fees/Offering Expenses     831,000   68,000
Net proceeds   $ 300,000 $ 190,135,000   $ 125,271,000
Offering price per share (in usd per share) | $ / shares     $ 30.02 $ 30.02 $ 27.04
At-the-Market Offering, Offering | Subsequent Event          
Subsidiary, Sale of Stock [Line Items]          
Net proceeds $ 1,900,000        
At-the-Market Offering, Offering 2          
Subsidiary, Sale of Stock [Line Items]          
Number of common shares issued (in shares) | shares       12,219,314  
Gross proceeds       $ 353,693,000  
Placement Fees/Offering Expenses       1,535,000  
Net proceeds       $ 352,158,000  
Offering price per share (in usd per share) | $ / shares     $ 28.82 $ 28.82  
v3.24.2.u1
Net Assets - Distributions Declared (Details) - USD ($)
$ / shares in Units, $ in Thousands
 6 Months Ended
May 10, 2024
May 08, 2024
Feb. 28, 2024
Feb. 27, 2023
Jun. 30, 2024
Jun. 30, 2023
Dividends Payable [Line Items]            
Per share amount (in usd per share)         $ 1.5400 $ 1.4000
Total Amount         $ 300,449 $ 228,183
Dividends 1            
Dividends Payable [Line Items]            
Per share amount (in usd per share)     $ 0.7700 $ 0.7000    
Total Amount     $ 147,743 $ 112,400    
Dividends 2            
Dividends Payable [Line Items]            
Per share amount (in usd per share) $ 0.7000 $ 0.7700        
Total Amount $ 115,783 $ 152,706        
v3.24.2.u1
Net Assets - Dividend Reinvestment (Details)
 6 Months Ended
Jun. 30, 2024
Equity [Abstract]  
Purchase price of common stock, percent of market price 95.00%
v3.24.2.u1
Net Assets - Scheduled of Amounts Received and Shares Issued (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Apr. 26, 2024
Jan. 26, 2024
Apr. 27, 2023
Jan. 31, 2023
Jun. 30, 2024
 [1]
Jun. 30, 2023
 [1]
Jun. 30, 2024
Jun. 30, 2023
Equity [Abstract]                
DRIP Shares Value $ 5,293 $ 5,614 $ 5,439 $ 5,132 $ 5,293 $ 5,439 $ 10,907 [1] $ 10,571
DRIP shares issued (in shares) 173,614 206,465 213,130 208,510     380,079 421,640
[1] The par amount of the shares is less than 1,000 and rounds to zero.
v3.24.2.u1
Net Assets - Share Repurchase Plan (Details) - USD ($)
$ in Millions
 1 Months Ended 3 Months Ended 6 Months Ended
Feb. 28, 2023
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Equity, Class of Treasury Stock [Line Items]          
Shares repurchased (in shares)   0 0 0 0
Company 10b-18 Plan          
Equity, Class of Treasury Stock [Line Items]          
Stock repurchase program authorized amount $ 250        
Period in force 1 year        
v3.24.2.u1
Earnings Per Share (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Earnings Per Share [Abstract]        
Net increase (decrease) in net assets resulting from operations $ 196,186 $ 144,850 $ 379,941 $ 283,648
Weighted average shares outstanding basic (in shares) 193,908,352 161,079,263 192,254,100 160,792,160
Weighted average shares outstanding diluted (in shares) 193,908,352 161,079,263 192,254,100 160,792,160
Earnings (loss) per common share basic (in usd per share) $ 1.01 $ 0.90 $ 1.98 $ 1.76
Earnings (loss) per common share diluted (in usd per share) $ 1.01 $ 0.90 $ 1.98 $ 1.76
v3.24.2.u1
Financial Highlights and Senior Securities (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Mar. 31, 2024
Dec. 31, 2023
Mar. 31, 2023
Dec. 31, 2022
Investment Company, Financial Highlights [Roll Forward]                
Net asset value, beginning of period (in usd per share)     $ 26.66 $ 25.93        
Net investment income (in usd per share) $ 0.89 $ 1.06 1.76 1.99        
Net unrealized and realized gain (loss) (in usd per share)     0.21 (0.22)        
Net increase (decrease) in net assets resulting from operations (in usd per share)     1.97 1.77        
Distributions declared (in usd per share)     (1.54) (1.40)        
Net increase (decrease) in net assets from capital share transactions (in usd per share)     0.10 0        
Total increase (decrease) in net assets (in usd per share)     0.53 0.37        
Net asset value, ending of period (in usd per share) $ 27.19 $ 26.30 $ 27.19 $ 26.30        
Shares outstanding end of period (in shares) 198,381,800 165,417,269 198,381,800 165,417,269   185,782,408    
Total return based on NAV     7.30% 6.90%        
Total return based on market value     16.80% 29.10%        
Ratios:                
Ratio of net expenses to average net assets     11.10% 11.50%        
Ratio of net investment income to average net assets     12.90% 14.60%        
Portfolio turnover rate     2.60% 2.30%        
Supplemental Data:                
Total net assets $ 5,394,573 $ 4,350,271 $ 5,394,573 $ 4,350,271 $ 5,155,665 $ 4,952,041 $ 4,190,496 $ 4,158,966
Asset coverage ratio 188.30% 186.90% 188.30% 186.90%   200.30%    
Ratio of expenses to average net assets, before waivers     11.10% 12.00%        
Ratio of expenses to average net assets, waivers     0.00% (0.50%)        
v3.24.2.u1
Subsequent Events (Details)
$ / shares in Units, € in Millions, £ in Millions, $ in Millions, $ in Millions
 6 Months Ended
Aug. 07, 2024
$ / shares
Aug. 06, 2024
USD ($)
Aug. 05, 2024
USD ($)
Jun. 12, 2024
USD ($)
Jun. 30, 2024
USD ($)
$ / shares
Jun. 30, 2023
$ / shares
Jun. 30, 2024
EUR (€)
Jun. 30, 2024
CAD ($)
Jun. 30, 2024
GBP (£)
Jun. 30, 2024
AUD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2023
EUR (€)
Dec. 31, 2023
CAD ($)
Dec. 31, 2023
GBP (£)
Subsequent Event [Line Items]                            
Distributions declared and payable per share (in usd per share) | $ / shares         $ 1.5400 $ 1.4000                
Revolving Credit Facility | Line of Credit | Revolving Credit Facility                            
Subsequent Event [Line Items]                            
Line of credit facility, maximum borrowing capacity         $ 1,775,000,000   € 191.1 $ 12.0 £ 185.1 $ 1.0 $ 1,775,000,000 € 94.4 $ 1.0 £ 66.9
Unused capacity, commitment fee percentage       0.375%                    
Revolving Credit Facility | Line of Credit | Revolving Credit Facility | Scenario 1                            
Subsequent Event [Line Items]                            
Combined revolving debt amount multiplier       1.6                    
Basis spread on variable rate       0.75%                    
Revolving Credit Facility | Line of Credit | Revolving Credit Facility | Scenario 2                            
Subsequent Event [Line Items]                            
Combined revolving debt amount multiplier       1.6                    
Basis spread on variable rate       0.875%                    
Revolving Credit Facility | Line of Credit | Revolving Credit Facility | Scenario 3                            
Subsequent Event [Line Items]                            
Combined revolving debt amount multiplier       1.6                    
Basis spread on variable rate       1.75%                    
Revolving Credit Facility | Line of Credit | Revolving Credit Facility | Scenario 4                            
Subsequent Event [Line Items]                            
Combined revolving debt amount multiplier       1.6                    
Basis spread on variable rate       1.875%                    
Revolving Credit Facility | Line of Credit | Term Loan                            
Subsequent Event [Line Items]                            
Line of credit facility, maximum borrowing capacity       $ 385,000,000.0                    
Subsequent Event                            
Subsequent Event [Line Items]                            
Distributions declared and payable per share (in usd per share) | $ / shares $ 0.77                          
Subsequent Event | Revolving Credit Facility | Line of Credit                            
Subsequent Event [Line Items]                            
Line of credit facility, maximum borrowing capacity   $ 2,075,000,000.000 $ 1,775,000,000                      
Subsequent Event | Revolving Credit Facility | Line of Credit | Revolving Credit Facility                            
Subsequent Event [Line Items]                            
Line of credit facility, maximum borrowing capacity   $ 1,686,500,000                        
Unused capacity, commitment fee percentage   0.325% 0.375%                      
Subsequent Event | Revolving Credit Facility | Line of Credit | Revolving Credit Facility | Scenario 1                            
Subsequent Event [Line Items]                            
Combined revolving debt amount multiplier   2.0                        
Basis spread on variable rate   0.525%                        
Subsequent Event | Revolving Credit Facility | Line of Credit | Revolving Credit Facility | Scenario 2                            
Subsequent Event [Line Items]                            
Basis spread on variable rate   0.65%                        
Subsequent Event | Revolving Credit Facility | Line of Credit | Revolving Credit Facility | Scenario 3                            
Subsequent Event [Line Items]                            
Combined revolving debt amount multiplier   1.6                        
Basis spread on variable rate   0.775%                        
Subsequent Event | Revolving Credit Facility | Line of Credit | Revolving Credit Facility | Scenario 4                            
Subsequent Event [Line Items]                            
Combined revolving debt amount multiplier   2.0                        
Basis spread on variable rate   1.525%                        
Subsequent Event | Revolving Credit Facility | Line of Credit | Revolving Credit Facility | Scenario 5                            
Subsequent Event [Line Items]                            
Basis spread on variable rate   1.65%                        
Subsequent Event | Revolving Credit Facility | Line of Credit | Revolving Credit Facility | Scenario 6                            
Subsequent Event [Line Items]                            
Combined revolving debt amount multiplier   1.6                        
Basis spread on variable rate   1.775%                        
Subsequent Event | Revolving Credit Facility | Line of Credit | Revolving Credit Facility | High | Scenario 2                            
Subsequent Event [Line Items]                            
Combined revolving debt amount multiplier   2.0                        
Subsequent Event | Revolving Credit Facility | Line of Credit | Revolving Credit Facility | High | Scenario 5                            
Subsequent Event [Line Items]                            
Combined revolving debt amount multiplier   2.0                        
Subsequent Event | Revolving Credit Facility | Line of Credit | Revolving Credit Facility | Low | Scenario 2                            
Subsequent Event [Line Items]                            
Combined revolving debt amount multiplier   1.6                        
Subsequent Event | Revolving Credit Facility | Line of Credit | Revolving Credit Facility | Low | Scenario 5                            
Subsequent Event [Line Items]                            
Combined revolving debt amount multiplier   1.6                        
Subsequent Event | Revolving Credit Facility | Line of Credit | Term Loan                            
Subsequent Event [Line Items]                            
Line of credit facility, maximum borrowing capacity   $ 388,500,000                        
Subsequent Event | CitiBank, Revolving Credit Facility, Revolving Commitments 2026 | Line of Credit | Revolving Credit Facility                            
Subsequent Event [Line Items]                            
Line of credit facility, maximum borrowing capacity   200,000,000                        
Subsequent Event | CitiBank, Revolving Credit Facility, Revolving Commitments 2027 | Line of Credit | Revolving Credit Facility                            
Subsequent Event [Line Items]                            
Line of credit facility, maximum borrowing capacity   200,000,000                        
Subsequent Event | CitiBank, Revolving Credit Facility, Revolving Commitments | Line of Credit | Revolving Credit Facility                            
Subsequent Event [Line Items]                            
Line of credit facility, maximum borrowing capacity   $ 200,000,000