OFFICE PROPERTIES INCOME TRUST, 10-K filed on 2/15/2023
Annual Report
v3.22.4
Cover Page - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Feb. 14, 2023
Jun. 30, 2022
Document Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2022    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 1-34364    
Entity Registrant Name OFFICE PROPERTIES INCOME TRUST    
Entity Incorporation, State or Country Code MD    
Entity Tax Identification Number 26-4273474    
Entity Address, Address Line One Two Newton Place    
Entity Address, Address Line Two 255 Washington Street    
Entity Address, Address Line Three Suite 300    
Entity Address, City or Town Newton    
Entity Address, State or Province MA    
Entity Address, Postal Zip Code 02458-1634    
City Area Code 617    
Local Phone Number 219-1440    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
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    
ICFR Auditor Attestation Flag true    
Entity Shell Company false    
Entity Public Float     $ 948.4
Entity Common Stock, Shares Outstanding   48,564,103  
Documents Incorporated by Reference Certain information required by Items 10, 11, 12, 13 and 14 of Part III of this Annual Report on Form 10-K is incorporated by reference to our definitive Proxy Statement for the 2023 Annual Meeting of Shareholders, to be filed with the Securities and Exchange Commission within 120 days after the fiscal year ended December 31, 2022.    
Entity Central Index Key 0001456772    
Document Fiscal Year Focus 2022    
Document Fiscal Period Focus FY    
Amendment Flag false    
Common Shares      
Document Information [Line Items]      
Title of 12(b) Security Common Shares of Beneficial Interest    
Trading Symbol OPI    
Security Exchange Name NASDAQ    
6.375% Senior Notes Due 2050      
Document Information [Line Items]      
Title of 12(b) Security 6.375% Senior Notes due 2050    
Trading Symbol OPINL    
Security Exchange Name NASDAQ    
v3.22.4
Audit Information
12 Months Ended
Dec. 31, 2022
Auditor Information [Abstract]  
Auditor Name Deloitte & Touche LLP
Auditor Location Boston, Massachusetts
Auditor Firm ID 34
v3.22.4
CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Real estate properties:    
Land $ 821,238 $ 874,108
Buildings and improvements 3,114,836 3,036,978
Total real estate properties, gross 3,936,074 3,911,086
Accumulated depreciation (561,458) (495,912)
Total real estate properties, net 3,374,616 3,415,174
Assets of properties held for sale 2,516 26,598
Investments in unconsolidated joint ventures 35,129 34,838
Acquired real estate leases, net 369,333 505,629
Cash and cash equivalents 12,249 83,026
Restricted cash 0 1,489
Rents receivable 105,639 112,886
Deferred leasing costs, net 73,098 53,883
Other assets, net 7,397 8,160
Total assets 3,979,977 4,241,683
LIABILITIES AND SHAREHOLDERS’ EQUITY    
Unsecured revolving credit facility 195,000 0
Senior unsecured notes, net 2,187,875 2,479,772
Mortgage notes payable, net 49,917 98,178
Liabilities of properties held for sale 73 594
Accounts payable and other liabilities 140,151 142,609
Due to related persons 6,469 6,787
Assumed real estate lease obligations, net 14,157 17,034
Total liabilities 2,593,642 2,744,974
Commitments and contingencies
Shareholders’ equity:    
Common shares of beneficial interest, $.01 par value: 200,000,000 shares authorized, 48,565,644 and 48,425,665 shares issued and outstanding, respectively 486 484
Additional paid in capital 2,619,532 2,617,169
Cumulative net income 169,606 175,715
Cumulative common distributions (1,403,289) (1,296,659)
Total shareholders’ equity 1,386,335 1,496,709
Total liabilities and shareholders’ equity $ 3,979,977 $ 4,241,683
v3.22.4
CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares
Dec. 31, 2022
Dec. 31, 2021
Statement of Financial Position [Abstract]    
Common shares of beneficial interest, par value (in dollars per share) $ 0.01 $ 0.01
Common shares of beneficial interest, shares authorized (in shares) 200,000,000 200,000,000
Common shares of beneficial interest, shares issued (in shares) 48,565,644 48,425,665
Common shares of beneficial interest, shares outstanding (in shares) 48,565,644 48,425,665
v3.22.4
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($)
shares in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Income Statement [Abstract]      
Rental income  $ 554,275 $ 576,482 $ 587,919
Expenses:      
Real estate taxes 57,844 71,970 65,119
Utility expenses 27,005 25,251 25,384
Other operating expenses 110,366 105,825 105,465
Depreciation and amortization 222,564 241,494 251,566
Loss on impairment of real estate 21,820 62,420 2,954
Acquisition and transaction related costs 292 0 232
General and administrative 25,134 26,858 28,443
Total expenses 465,025 533,818 479,163
Gain on sale of real estate 11,001 78,354 10,855
Interest and other income 217 7 779
Interest expense (including net amortization of debt premiums, discounts and issuance costs of $9,134, $9,771 and $9,593, respectively) (103,480) (112,385) (108,303)
Gain (loss) on early extinguishment of debt 682 (14,068) (3,839)
Income (loss) before income tax expense and equity in net losses of investees (2,330) (5,428) 8,248
Income tax expense (270) (251) (377)
Equity in net losses of investees (3,509) (2,501) (1,193)
Net income (loss) (6,109) (8,180) 6,678
Other comprehensive income:      
Unrealized gain on financial instrument 0 0 200
Other comprehensive income 0 0 200
Comprehensive income (loss) $ (6,109) $ (8,180) $ 6,878
Weighted average common shares outstanding, basic (in shares) 48,278 48,195 48,124
Weighted average common shares outstanding, diluted (in shares) 48,278 48,195 48,124
Per common share amounts (basic and diluted):      
Net income (loss) - basic (in dollars per share) $ (0.14) $ (0.17) $ 0.14
Net income (loss) - diluted (in dollars per share) $ (0.14) $ (0.17) $ 0.14
v3.22.4
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parenthetical) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Income Statement [Abstract]      
Net amortization of debt premiums, discounts and issuance costs $ 9,134 $ 9,771 $ 9,593
v3.22.4
CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($)
$ in Thousands
Total
Common Shares
Additional Paid In Capital
Cumulative Net Income
Cumulative Other Comprehensive Income (Loss)
Cumulative Common Distributions
Balance beginning (in shares) at Dec. 31, 2019   48,201,941        
Balance beginning at Dec. 31, 2019 $ 1,705,754 $ 482 $ 2,612,425 $ 177,217 $ (200) $ (1,084,170)
Increase (Decrease) in Shareholders' Equity            
Share grants (in shares)   136,600        
Share grants 3,324 $ 1 3,323      
Shares forfeitures or repurchases (in shares)   (20,175)        
Share forfeitures and repurchases (443)   (443)      
Amounts reclassified from cumulative other comprehensive income to net income 85       85  
Unrealized gain on financial instruments 115       115  
Net income (loss) 6,678     6,678    
Distributions to common shareholders (106,121)         (106,121)
Balance ending (in shares) at Dec. 31, 2020   48,318,366        
Balance ending at Dec. 31, 2020 1,609,392 $ 483 2,615,305 183,895 0 (1,190,291)
Increase (Decrease) in Shareholders' Equity            
Share grants (in shares)   145,800        
Share grants 2,873 $ 1 2,872      
Shares forfeitures or repurchases (in shares)   (38,501)        
Share forfeitures and repurchases (1,008)   (1,008)      
Net income (loss) (8,180)     (8,180)    
Distributions to common shareholders (106,368)         (106,368)
Balance ending (in shares) at Dec. 31, 2021   48,425,665        
Balance ending at Dec. 31, 2021 1,496,709 $ 484 2,617,169 175,715 0 (1,296,659)
Increase (Decrease) in Shareholders' Equity            
Share grants (in shares)   172,700        
Share grants 2,916 $ 2 2,914      
Shares forfeitures or repurchases (in shares)   (32,721)        
Share forfeitures and repurchases (551)   (551)      
Net income (loss) (6,109)     (6,109)    
Distributions to common shareholders (106,630)         (106,630)
Balance ending (in shares) at Dec. 31, 2022   48,565,644        
Balance ending at Dec. 31, 2022 $ 1,386,335 $ 486 $ 2,619,532 $ 169,606 $ 0 $ (1,403,289)
v3.22.4
CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
CASH FLOWS FROM OPERATING ACTIVITIES:      
Net income (loss) $ (6,109) $ (8,180) $ 6,678
Adjustments to reconcile net income (loss) to net cash provided by operating activities:      
Depreciation 96,966 92,266 83,828
Net amortization of debt premiums, discounts and issuance costs 9,134 9,771 9,593
Amortization of acquired real estate leases and assumed real estate lease obligations, net 119,703 144,826 167,192
Amortization of deferred leasing costs 7,994 7,878 6,887
Gain on sale of real estate (11,001) (78,354) (10,855)
Loss on impairment of real estate 21,820 62,420 2,954
(Gain) loss on early extinguishment of debt (682) 9,694 2,701
Straight line rental income (10,830) (15,368) (16,079)
Other non-cash expenses, net 1,818 1,782 2,229
Equity in net losses of investees 3,509 2,501 1,193
Change in assets and liabilities:      
Rents receivable 10,961 2,663 (3,962)
Deferred leasing costs (31,621) (19,769) (12,128)
Other assets 484 1,538 2,505
Accounts payable and other liabilities (19,214) 7,151 (8,081)
Due to related persons (318) 673 (1,027)
Net cash provided by operating activities 192,614 221,492 233,628
CASH FLOWS FROM INVESTING ACTIVITIES:      
Real estate acquisitions 0 (563,447) (47,215)
Real estate improvements (204,104) (100,141) (81,762)
Proceeds from sale of properties, net 203,280 219,980 102,211
Contributions to unconsolidated joint ventures (3,851) 0 0
Proceeds from repayment of mortgage note receivable 0 0 2,880
Net cash used in investing activities (4,624) (442,985) (22,987)
CASH FLOWS FROM FINANCING ACTIVITIES:      
Repayment of mortgage notes payable (47,617) (72,541) (155,367)
Repayment of senior unsecured notes (300,000) (610,000) (400,000)
Proceeds from issuance of senior unsecured notes, net 0 1,041,809 408,932
Borrowings on unsecured revolving credit facility 385,000 755,000 561,467
Repayments on unsecured revolving credit facility (190,000) (755,000) (561,467)
Payment of debt issuance costs (469) (2,744) (1,492)
Repurchase of common shares (540) (1,003) (434)
Distributions to common shareholders (106,630) (106,368) (106,121)
Net cash (used in) provided by financing activities (260,256) 249,153 (254,482)
(Decrease) increase in cash, cash equivalents and restricted cash (72,266) 27,660 (43,841)
Cash, cash equivalents and restricted cash at beginning of period 84,515 56,855 100,696
Cash, cash equivalents and restricted cash at end of period 12,249 84,515 56,855
SUPPLEMENTAL CASH FLOW INFORMATION:      
Interest paid 104,174 103,200 100,083
Income taxes paid 352 299 1,377
NON-CASH INVESTING ACTIVITIES:      
Real estate improvements accrued, not paid 42,772 18,492 11,981
Real estate acquisition 0 (13,031) 0
Capitalized interest 4,578 795 199
SUPPLEMENTAL DISCLOSURE OF CASH, CASH EQUIVALENTS AND RESTRICTED CASH:      
Cash and cash equivalents 12,249 83,026 42,045
Restricted cash 0 1,489 14,810
Total cash, cash equivalents and restricted cash shown in the consolidated statements of cash flows 12,249 84,515 56,855
Unconsolidated Joint Ventures      
CASH FLOWS FROM INVESTING ACTIVITIES:      
Distributions in excess of earnings 51 612 612
Affiliates Insurance Company      
CASH FLOWS FROM INVESTING ACTIVITIES:      
Distributions in excess of earnings $ 0 $ 11 $ 287
v3.22.4
Organization
12 Months Ended
Dec. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Organization OrganizationOffice Properties Income Trust, or OPI, we, us or our, is a real estate investment trust, or REIT, formed in 2009 under Maryland law.As of December 31, 2022, our wholly owned properties were comprised of 160 properties containing approximately 20,969,000 rentable square feet and we had noncontrolling ownership interests of 51% and 50% in two unconsolidated joint ventures that own three properties totaling approximately 444,000 rentable square feet.
v3.22.4
Summary of Significant Accounting Policies
12 Months Ended
Dec. 31, 2022
Accounting Policies [Abstract]  
Summary of Significant Accounting Policies Summary of Significant Accounting Policies
Basis of Presentation. These consolidated financial statements include the accounts of us and our subsidiaries, all of which are wholly owned directly or indirectly by us. All intercompany transactions and balances with or among our consolidated subsidiaries have been eliminated.
Real Estate Properties. We record our properties at cost and provide depreciation on real estate investments on a straight line basis over estimated useful lives generally ranging from 7 to 40 years. In some circumstances, we engage independent real estate appraisal firms to provide market information and evaluations which are relevant to our purchase price allocations and determinations of useful lives; however, we are ultimately responsible for the purchase price allocations and determinations of useful lives.
We allocate the purchase prices of our properties to land, buildings and improvements based on determinations of the relative fair values of these assets assuming the properties are vacant. We determine the fair value of each property using methods similar to those used by independent appraisers, which may involve estimated cash flows that are based on a number of factors, including capitalization rates and discount rates, among others. We allocate a portion of the purchase price of our properties to above market and below market leases based on the present value (using an interest rate which reflects the risks associated with acquired in place leases at the time each property was acquired by us) of the difference, if any, between (i) the contractual amounts to be paid pursuant to the acquired in place leases and (ii) our estimates of fair market lease rates for the corresponding leases, measured over a period equal to the terms of the respective leases. We allocate a portion of the purchase price to acquired in place leases and tenant relationships based upon market estimates to lease up the property based on the leases in place at the time of purchase. We allocate this aggregate value between acquired in place lease values and tenant relationships based on our evaluation of the specific characteristics of each tenant’s lease. However, we have not separated the value of tenant relationships from the value of acquired in place leases because such value and related amortization expense is immaterial to the accompanying consolidated financial statements. In making these allocations, we consider factors such as estimated carrying costs during the expected lease up periods, including real estate taxes, insurance and other operating income and expenses and costs, such as leasing commissions, legal and other related expenses, to execute similar leases in current market conditions at the time a property was acquired by us. If the value of tenant relationships becomes material in the future, we may separately allocate those amounts and amortize the allocated amounts over the estimated life of the relationships. For transactions that qualify as business combinations, we allocate the excess, if any, of the consideration over the fair value of the assets acquired to goodwill.
We amortize capitalized above market lease values (included in acquired real estate leases, net in our consolidated balance sheets) and below market lease values (presented as assumed real estate lease obligations, net in our consolidated balance sheets) as a reduction or increase, respectively, to rental income over the terms of the associated leases. Such amortization resulted in net decreases to rental income of $975, $2,288 and $5,440 during the years ended December 31, 2022, 2021 and 2020, respectively. We amortize the value of acquired in place leases (included in acquired real estate leases, net in our consolidated balance sheets), exclusive of the value of above market and below market acquired in place leases, over the terms of the associated leases. Such amortization, which is included in depreciation and amortization expense, amounted to $118,728, $142,538 and $161,752 during the years ended December 31, 2022, 2021 and 2020, respectively. If a lease is terminated prior to its stated expiration, we write off the unamortized amounts relating to that lease.
As of December 31, 2022 and 2021, our acquired real estate leases and assumed real estate lease obligations, excluding properties classified as held for sale, were as follows:
 December 31,
20222021
Acquired real estate leases:
Capitalized above market lease values$15,792 $29,925 
Less: accumulated amortization(9,672)(17,945)
Capitalized above market lease values, net6,120 11,980 
Lease origination value728,773 885,250 
Less: accumulated amortization(365,560)(391,601)
Lease origination value, net363,213 493,649 
Acquired real estate leases, net$369,333 $505,629 
Assumed real estate lease obligations:
Capitalized below market lease values$27,033 $29,488 
Less: accumulated amortization(12,876)(12,454)
Assumed real estate lease obligations, net$14,157 $17,034 
As of December 31, 2022, the weighted average amortization periods for capitalized above market leases, lease origination value and capitalized below market lease values were 3.8 years, 6.4 years and 10.9 years, respectively. Future amortization of net intangible lease assets and liabilities, to be recognized over the current terms of the associated leases as of December 31, 2022 are estimated to be $90,999 in 2023, $73,905 in 2024, $53,792 in 2025, $39,983 in 2026, $31,313 in 2027 and $65,184 thereafter.
We regularly evaluate whether events or changes in circumstances have occurred that could indicate an impairment in the value of long lived assets. Impairment indicators may include declining tenant occupancy, lack of progress releasing vacant space, tenant bankruptcies, low long term prospects for improvement in property performance, weak or declining tenant profitability, cash flow or liquidity, our decision to dispose of an asset before the end of its estimated useful life and legislative, market or industry changes that could permanently reduce the value of a property. If there is an indication that the carrying value of an asset is not recoverable, we estimate the projected undiscounted cash flows to determine if an impairment loss should be recognized. The future net undiscounted cash flows are subjective and are based in part on assumptions regarding hold periods, market rents and terminal capitalization rates. We determine the amount of any impairment loss by comparing the historical carrying value to estimated fair value. We estimate fair value through an evaluation of recent financial performance and projected discounted cash flows using standard industry valuation techniques. In addition to consideration of impairment upon the events or changes in circumstances described above, we regularly evaluate the remaining useful lives of our long lived assets. If we change our estimate of the remaining useful lives, we allocate the carrying value of the affected assets over their revised remaining useful lives.
Cash and Cash Equivalents. We consider highly liquid investments with original maturities of three months or less at the date of purchase to be cash equivalents.
Restricted Cash. Restricted cash consists of amounts escrowed for future real estate taxes, insurance, leasing costs, capital expenditures and debt service, as required by certain of our mortgage debts.
Deferred Leasing Costs. Deferred leasing costs include brokerage costs and inducements associated with our entering leases. We amortize deferred leasing costs, which are included in depreciation and amortization expense, and inducements, which are included as a reduction to rental income, on a straight line basis over the terms of the respective leases. Legal costs associated with the execution of our leases are expensed as incurred and included in general and administrative expenses in our consolidated statements of comprehensive income (loss). We recorded amortization of deferred leasing costs of $6,869, $6,691 and $5,985, and reductions to rental income related to the amortization of inducements of $1,124, $1,187 and $902 for the years ended December 31, 2022, 2021 and 2020, respectively. Deferred leasing costs, excluding properties classified as held for sale, totaled $94,680 and $74,469 at December 31, 2022 and 2021, respectively, and accumulated amortization of deferred leasing
costs totaled $21,582 and $20,586 at December 31, 2022 and 2021, respectively. Future amortization of deferred leasing costs to be recognized during the current terms of our existing leases as of December 31, 2022 are estimated to be $9,938 in 2023, $8,837 in 2024, $7,838 in 2025, $7,260 in 2026, $6,424 in 2027 and $32,801 thereafter.
Debt Issuance Costs. Costs related to the issuance or assumption of debt are capitalized and amortized to interest expense over the terms of the respective loans. Debt issuance costs, net of accumulated amortization, for our revolving credit facility are included in other assets in our consolidated balance sheets. As of December 31, 2022 and 2021, debt issuance costs for our revolving credit facility were $4,593 and $4,125, respectively, and accumulated amortization of debt issuance costs for our revolving credit facility were $4,072 and $3,079, respectively. Debt issuance costs, net of accumulated amortization, for our senior unsecured notes and mortgage notes payable are presented as a direct deduction from the associated debt liability in our consolidated balance sheets. As of December 31, 2022 and 2021, debt issuance costs, net of accumulated amortization, for our senior unsecured notes and mortgage notes payable totaled $13,589 and $16,120, respectively. Future amortization of debt issuance costs to be recognized with respect to our revolving credit facility and senior unsecured notes as of December 31, 2022 are estimated to be $2,676 in 2023, $2,155 in 2024, $1,669 in 2025, $1,335 in 2026, $595 in 2027 and $5,680 thereafter.
Equity Method Investments. We have noncontrolling ownership interests of 51% and 50% in two unconsolidated joint ventures that own three properties. The properties owned by these joint ventures are encumbered by an aggregate of $82,000 of mortgage indebtedness. We do not control the activities that are most significant to these joint ventures and, as a result, we account for our investments in these joint ventures under the equity method of accounting. See Note 4 for more information regarding our unconsolidated joint ventures.
We periodically evaluate our equity method investments for possible indicators of other than temporary impairment whenever events or changes in circumstances indicate the carrying amount of the investment might not be recoverable. These indicators may include the length of time and the extent to which the market value of our investment is below our carrying value, the financial condition of our investees, our intent and ability to be a long term holder of the investment and other considerations. If the decline in fair value is judged to be other than temporary, we record an impairment charge to adjust the basis of the investment to its estimated fair value.  
Other Liabilities. We initially acquired 1,541,201 shares of class A common stock of The RMR Group Inc., or RMR Inc., on June 5, 2015 for cash and share consideration of $17,462. We concluded, for accounting purposes, that the cash and share consideration we paid for our investment in these shares represented a discount to the fair value of these shares. We initially accounted for this investment under the cost method of accounting and recorded this investment at its estimated fair value of $39,833 as of June 5, 2015 using Level 3 inputs, as defined in the fair value hierarchy under U.S. generally accepted accounting principles, or GAAP. As a result, we recorded a liability for the amount by which the estimated fair value of these shares exceeded the price we paid for these shares. This liability is included in accounts payable and other liabilities in our consolidated balance sheets. This liability is being amortized on a straight line basis through December 31, 2035 as an allocated reduction to our business management and property management fee expense. We amortized $1,087 of this liability during each of the years ended December 31, 2022, 2021 and 2020. These amounts are included in the net business management and property management fee amounts for such periods disclosed in Note 6. As of December 31, 2022, the remaining unamortized amount of this liability was $14,145. Future amortization of this liability as of December 31, 2022 is estimated to be $1,087 in 2023 through 2027 and $8,710 thereafter.
Revenue Recognition. We are a lessor of commercial office properties. Our leases provide our tenants with the contractual right to use and economically benefit from all of the physical space specified in the leases; therefore, we have determined to evaluate our leases as lease arrangements.
Our leases provide for base rent payments and in addition may include variable payments. Rental income from operating leases, including any payments derived by index or market-based indices, is recognized on a straight line basis over the lease term when we have determined that the collectability of substantially all of the lease payments is probable. Some of our leases have options to extend or terminate the lease exercisable at the option of our tenants, which are considered when determining the lease term. Allowances for bad debts are recognized as a direct reduction of rental income.
Certain of our leases contain non-lease components, such as property level operating expenses and capital expenditures reimbursed by our tenants as well as other required lease payments. We have made the policy election to not separate the lease and non-lease components because (i) the lease components are operating leases and (ii) the timing and pattern of recognition of the non-lease components are the same as those of the lease components. We apply Accounting Standards Codification 842,
Leases, to the combined component. Income derived by our leases is recorded in rental income in our consolidated statements of comprehensive income (loss).
Certain tenants are obligated to pay directly their obligations under their leases for insurance, real estate taxes and certain other expenses. These obligations, which have been assumed by the tenants under the terms of their respective leases, are not reflected in our consolidated financial statements. To the extent any tenant responsible for any such obligations under the applicable lease defaults on such lease or if it is deemed probable that the tenant will fail to pay for such obligations, we would record a liability for such obligations. See Note 5 for more information regarding our leases.
Income Taxes. We have elected to be taxed as a REIT under the United States Internal Revenue Code of 1986, as amended, and, accordingly, we generally will not be subject to federal income taxes provided we distribute our taxable income and meet certain other requirements to qualify for taxation as a REIT. We are, however, subject to certain state and local taxes.
Cumulative Other Comprehensive Income (Loss). Cumulative other comprehensive income (loss) represents our share of the cumulative comprehensive income and losses of our former equity method investees.
Per Common Share Amounts. We calculate basic earnings per common share using the two class method. We calculate diluted earnings per share using the more dilutive of the two class method or the treasury stock method. Unvested share awards and other potentially dilutive common shares, together with the related impact on earnings, are considered when calculating diluted earnings per share.
Use of Estimates. Preparation of these financial statements in conformity with GAAP requires us to make estimates and assumptions that may affect the amounts reported in these consolidated financial statements and related notes. The actual results could differ from these estimates. Significant estimates in the consolidated financial statements include purchase price allocations, useful lives of fixed assets and assessment of impairment of real estate and the related intangibles.
Segment Reporting. We operate in one business segment: direct ownership of real estate properties.
v3.22.4
Per Common Share Amounts
12 Months Ended
Dec. 31, 2022
Earnings Per Share [Abstract]  
Per Common Share Amounts Per Common Share Amounts
The calculation of basic and diluted earnings per share is as follows (amounts in thousands, except per share amounts):
Year Ended December 31,
202220212020
Numerators:
Net income (loss)$(6,109)$(8,180)$6,678 
Income attributable to unvested participating securities(427)— — 
Net income (loss) used in calculating earnings per share$(6,536)$(8,180)$6,678 
Denominators:
Weighted average common shares outstanding - basic and diluted (1)
48,278 48,195 48,124 
Net income (loss) per common share - basic and diluted$(0.14)$(0.17)$0.14 
(1)For the years ended December 31, 2022, 2021 and 2020, there were no dilutive common shares. In addition, for the years ended December 31, 2021 and 2020, 34 and 14 unvested common shares, respectively, were not included in the calculation of diluted earnings per share because to do so would have been antidilutive.
v3.22.4
Real Estate Properties
12 Months Ended
Dec. 31, 2022
Real Estate [Abstract]  
Real Estate Properties Real Estate PropertiesAs of December 31, 2022, our wholly owned properties were comprised of 160 properties containing approximately 20,969,000 rentable square feet, with an undepreciated carrying value of $3,938,658, including $2,584 classified as held for sale. We also had noncontrolling ownership interests of 51% and 50% in two unconsolidated joint ventures that own three properties containing approximately 444,000 rentable square feet. We generally lease space at our properties on a gross lease, modified gross lease or net lease basis pursuant to fixed term contracts expiring between 2023 and 2053. Some of our leases generally require us to pay all or some property operating expenses and to provide all or most property management services. During the year ended December 31, 2022, we entered into 75 leases for approximately 2,562,000 rentable square feet for a
weighted (by rentable square feet) average lease term of 9.3 years and we made commitments for $173,419 of leasing related costs. As of December 31, 2022, we had estimated unspent leasing related obligations of $156,693.
Acquisition Activities
2022 Acquisition Activities
We did not acquire any properties during the year ended December 31, 2022.
2021 Acquisition Activities
During the year ended December 31, 2021, we acquired three properties containing approximately 926,000 rentable square feet for an aggregate purchase price of $576,478, including net purchase price adjustments of $1,761 and acquisition related costs of $1,264. These acquisitions were accounted for as asset acquisitions. We allocated the purchase prices of these acquisitions based on the relative estimated fair values of the acquired assets and assumed liabilities as follows:
Acquisition DateLocationNumber of PropertiesRentable Square FeetPurchase PriceLandBuildings and ImprovementsAcquired Real Estate LeasesAssumed Real Estate Lease Obligations
June 2021
Chicago, IL (1)
1531,000 $368,331 $42,935 $258,348 $76,136 $(9,088)
June 2021Atlanta, GA1346,000 180,602 13,040 135,459 32,103 — 
August 2021Boston, MA149,000 27,545 16,103 10,217 1,225 — 
3926,000$576,478 $72,078 $404,024 $109,464 $(9,088)
(1)Purchase price includes an adjustment of $13,031 to record an estimated real estate tax liability as of the acquisition date.
2020 Acquisition Activities
During the year ended December 31, 2020, we acquired two properties containing approximately 163,000 rentable square feet for an aggregate purchase price of $47,215, including capitalized acquisition related costs of $590. These acquisitions were accounted for as asset acquisitions. We allocated the purchase prices of these acquisitions based on the relative estimated fair values of the acquired assets as follows:
Acquisition DateLocationNumber of PropertiesRentable Square FeetPurchase PriceLandBuildings and ImprovementsAcquired Real Estate Leases
February 2020Boston, MA113,000 $11,864 $2,618 $9,246 $— 
December 2020Fort Mill, SC1150,000 35,351 5,031 22,526 7,794 
2163,000 $47,215 $7,649 $31,772 $7,794 
Disposition Activities
The sales completed during the years ended December 31, 2022, 2021 and 2020, as presented in the tables below, do not represent significant dispositions individually or in the aggregate, nor do they represent a strategic shift in our business. As a result, the results of operations of these properties are included in continuing operations through the date of sale in our consolidated statements of comprehensive income (loss).
2022 Disposition Activities
During the year ended December 31, 2022, we sold 18 properties containing approximately 2,326,000 rentable square feet for an aggregate sales price of $211,020, excluding closing costs.
Date of SaleNumber of Properties LocationRentable Square Feet
Gross
 Sales Price (1)
Gain (Loss) on Sale of Real EstateLoss on Impairment of Real Estate
January 20221
Rockville, MD (2)
129,000 $6,750 $(72)$— 
February 20222
Chesapeake, VA (2)
172,000 18,945 2,296 — 
March 20221
Milwaukee, WI (2)
29,000 3,775 (75)— 
May 20221Holtsville, NY264,000 28,500 1,900 — 
June 20221Fairfax, VA184,000 19,750 (13,537)— 
July 20221Houston, TX206,000 9,800 (135)15,278 
August 20223Birmingham, AL448,000 16,050 (265)3,709 
August 20221Erlanger, KY86,000 2,600 135 2,184 
September 20222Chesapeake, VA214,000 24,000 62 649 
September 20222Everett, WA112,000 31,500 11,959 — 
September 20221Salem, OR233,000 34,250 5,369 — 
November 20221
Kapolei, HI (3)
109,000 4,000 2,504 — 
November 20221Englewood, CO140,000 11,100 860 — 
182,326,000 $211,020 $11,001 $21,820 
(1)Gross sales price is the gross contract price, excluding closing costs.
(2)Properties were classified as held for sale as of December 31, 2021.
(3)Property is a leasable land parcel.
As of December 31, 2022, we had three properties located in Richmond, VA containing approximately 89,000 rentable square feet classified as held for sale in our consolidated balance sheets. These properties were sold in January 2023 for a sales price of $5,350, excluding closing costs.
As of February 14, 2023, we have entered into agreements to sell two properties containing approximately 207,000 rentable square feet for an aggregate sales price of $7,600, excluding closing costs. These pending sales are subject to conditions, accordingly, we cannot be sure that we will complete these sales or that these sales will not be delayed or the terms will not change.
2021 Disposition Activities
During the year ended December 31, 2021, we sold six properties, a warehouse facility and two vacant land parcels containing approximately 2,565,000 rentable square feet for an aggregate sales price of $226,915, excluding closing costs.
Date of SaleNumber of Properties LocationRentable Square Feet
Gross
 Sales Price (1)
Gain (Loss) on Sale of Real EstateLoss on Impairment of Real Estate
January 2021
Kansas City, MO (2) (3)
10,000 $845 $(63)$— 
January 20211
Richmond, VA (2)
311,000 130,000 54,181 — 
April 20211Huntsville, AL1,371,000 39,000 — 5,383 
July 20211Fresno, CA532,000 6,000 — 33,902 
July 20211Liverpool, NY38,000 650 31 — 
August 20211Memphis, TN205,000 15,270 287 — 
September 20211Stoneham, MA98,000 6,650 (282)5,911 
October 2021
Sterling, VA (4)
— 28,500 24,200 — 
62,565,000$226,915 $78,354 $45,196 
(1)Gross sales price is the gross contract price, excluding closing costs.
(2)Properties were classified as held for sale as of December 31, 2020.
(3)Consists of a warehouse facility.
(4)Consists of two vacant land parcels.
We also recorded a $10,658 loss on impairment of real estate to reduce the carrying value of three properties that were classified as held for sale to their estimated fair values less costs to sell as of September 30, 2021. Subsequently, we removed these properties from held for sale status due to a change of plan for sale and recorded an impairment adjustment of $425 to increase the carrying value of these properties to their estimated fair value as of December 31, 2021. In addition, we recorded a $6,991 loss on impairment of real estate to reduce the carrying value of two properties that were classified as held for sale as of December 31, 2021 and subsequently sold in 2022.
2020 Disposition Activities
During the year ended December 31, 2020, we sold 10 properties containing approximately 906,000 rentable square feet for an aggregate sales price of $110,463, excluding closing costs and including the repayment of one mortgage note with an outstanding principal balance of $13,095, an annual interest rate of 5.9% and a maturity date in August 2021.
Date of SaleNumber of Properties LocationRentable Square Feet
Gross
 Sales Price (1)
Gain (Loss) on Sale of Real EstateLoss on Impairment of Real Estate
January 20202Stafford, VA65,000 $14,063 $4,771 $— 
January 20201Windsor, CT97,000 7,000 314 — 
February 20201Lincolnshire, IL223,000 12,000 1,179 — 
March 20201Trenton, NJ267,000 30,100 (179)— 
March 20201Fairfax, VA83,000 22,200 4,754 — 
October 20204Fairfax, VA171,000 25,100 16 2,954 
10906,000 $110,463 $10,855 $2,954 
(1)Gross sales price is the gross contract price, excluding closing costs.
Unconsolidated Joint Ventures
We own interests in two joint ventures that own three properties. We account for these investments under the equity method of accounting. As of December 31, 2022 and 2021, our investments in unconsolidated joint ventures consisted of the following:
OPI OwnershipOPI Carrying Value of Investments at December 31, Number of PropertiesLocationRentable Square Feet
Joint Venture20222021
Prosperity Metro Plaza51%$19,237 $20,672 2Fairfax, VA329,000
1750 H Street, NW50%15,892 14,166 1Washington, D.C.115,000
Total $35,129 $34,838 3444,000
The following table provides a summary of the mortgage debt of our two unconsolidated joint ventures:
Joint Venture
Interest Rate (1)
Maturity Date
Principal Balance at December 31, 2022 and 2021 (2)
Prosperity Metro Plaza4.09%12/1/2029$50,000 
1750 H Street, NW3.69%8/1/202432,000 
Weighted Average/Total3.93%$82,000 
(1)Includes the effect of mark to market purchase accounting.
(2)Reflects the entire balance of the debt secured by the properties and is not adjusted to reflect the interests in the joint ventures we do not own. None of the debt is recourse to us.
At December 31, 2022, the aggregate unamortized basis difference of our two unconsolidated joint ventures of $6,489 was primarily attributable to the difference between the amount we paid to purchase our interest in these joint ventures, including transaction costs, and the historical carrying value of the net assets of these joint ventures. This difference is being amortized over the remaining useful life of the related properties and the resulting amortization expense is included in equity in net losses of investees in our consolidated statements of comprehensive income (loss).
v3.22.4
Leases
12 Months Ended
Dec. 31, 2022
Leases [Abstract]  
Leases LeasesRental income from operating leases, including payments derived by index or market-based indices, is recognized on a straight line basis over the lease term when we have determined that the collectability of substantially all of the lease payments is probable. We increased rental income by $10,830, $15,368 and $16,079 to record revenue on a straight line basis during the
years ended December 31, 2022, 2021 and 2020, respectively. Rents receivable, excluding properties classified as held for sale, include $86,305 and $82,978 of straight line rent receivables at December 31, 2022 and 2021, respectively.
We do not include in our measurement of our lease receivables certain variable payments, including payments determined by changes in the index or market-based indices after the inception of the lease, certain tenant reimbursements and other income until the specific events that trigger the variable payments have occurred. Such payments totaled $83,103, $85,107 and $75,851 for the years ended December 31, 2022, 2021 and 2020, respectively, of which tenant reimbursements totaled $78,388, $81,295 and $71,385, respectively.
The following operating lease maturity analysis presents the future contractual lease payments to be received by us through 2053 as of December 31, 2022:
YearAmount
2023$393,318 
2024358,254 
2025313,267 
2026279,820 
2027248,976 
Thereafter1,393,682 
Total$2,987,317 
As of December 31, 2022, tenants representing approximately 1.5% of our total operating lease maturities had exercisable rights to terminate their leases before the stated terms of their leases expire. In 2023, 2024, 2025, 2026, 2027, 2028, 2029, 2030, 2031, 2035, 2037 and 2040, early termination rights become exercisable by other tenants who represented an additional approximately 1.3%, 2.4%, 5.6%, 1.6%, 1.6%, 5.5%, 2.1%, 1.6%, 0.3%, 3.5%, 0.4% and 1.7% of our total operating lease maturities, respectively. In certain circumstances, some leases provide the tenant with the right to terminate if the legislature or other funding authority does not appropriate the funding necessary for the tenant to meet its lease obligations; we have determined the fixed non-cancelable lease term of these leases to be the full term of the lease because we believe the occurrence of early terminations to be a remote contingency based on both our historical experience and our assessments of the likelihood of lease cancellation on a separate lease basis. As of December 31, 2022, 10 of our tenants had the right to terminate their leases if the respective legislature or other funding authority does not appropriate the funding necessary for the tenant to meet its obligation. These 10 tenants represented approximately 4.8% of our total operating lease maturities as of December 31, 2022.
Leases where we are the lessee. We had one lease where we were the lessee which expired on January 31, 2021. We subleased a portion of the space, which sublease also expired on January 31, 2021. Rent expense incurred under the lease, net of sublease revenue, was $79 and $1,749 for the years ended December 31, 2021 and 2020, respectively.
Leases LeasesRental income from operating leases, including payments derived by index or market-based indices, is recognized on a straight line basis over the lease term when we have determined that the collectability of substantially all of the lease payments is probable. We increased rental income by $10,830, $15,368 and $16,079 to record revenue on a straight line basis during the
years ended December 31, 2022, 2021 and 2020, respectively. Rents receivable, excluding properties classified as held for sale, include $86,305 and $82,978 of straight line rent receivables at December 31, 2022 and 2021, respectively.
We do not include in our measurement of our lease receivables certain variable payments, including payments determined by changes in the index or market-based indices after the inception of the lease, certain tenant reimbursements and other income until the specific events that trigger the variable payments have occurred. Such payments totaled $83,103, $85,107 and $75,851 for the years ended December 31, 2022, 2021 and 2020, respectively, of which tenant reimbursements totaled $78,388, $81,295 and $71,385, respectively.
The following operating lease maturity analysis presents the future contractual lease payments to be received by us through 2053 as of December 31, 2022:
YearAmount
2023$393,318 
2024358,254 
2025313,267 
2026279,820 
2027248,976 
Thereafter1,393,682 
Total$2,987,317 
As of December 31, 2022, tenants representing approximately 1.5% of our total operating lease maturities had exercisable rights to terminate their leases before the stated terms of their leases expire. In 2023, 2024, 2025, 2026, 2027, 2028, 2029, 2030, 2031, 2035, 2037 and 2040, early termination rights become exercisable by other tenants who represented an additional approximately 1.3%, 2.4%, 5.6%, 1.6%, 1.6%, 5.5%, 2.1%, 1.6%, 0.3%, 3.5%, 0.4% and 1.7% of our total operating lease maturities, respectively. In certain circumstances, some leases provide the tenant with the right to terminate if the legislature or other funding authority does not appropriate the funding necessary for the tenant to meet its lease obligations; we have determined the fixed non-cancelable lease term of these leases to be the full term of the lease because we believe the occurrence of early terminations to be a remote contingency based on both our historical experience and our assessments of the likelihood of lease cancellation on a separate lease basis. As of December 31, 2022, 10 of our tenants had the right to terminate their leases if the respective legislature or other funding authority does not appropriate the funding necessary for the tenant to meet its obligation. These 10 tenants represented approximately 4.8% of our total operating lease maturities as of December 31, 2022.
Leases where we are the lessee. We had one lease where we were the lessee which expired on January 31, 2021. We subleased a portion of the space, which sublease also expired on January 31, 2021. Rent expense incurred under the lease, net of sublease revenue, was $79 and $1,749 for the years ended December 31, 2021 and 2020, respectively.
v3.22.4
Business and Property Management Agreements with RMR
12 Months Ended
Dec. 31, 2022
Related Party Transactions [Abstract]  
Business and Property Management Agreements with RMR Business and Property Management Agreements with RMR
We have no employees. The personnel and various services we require to operate our business are provided to us by The RMR Group LLC, or RMR. We have two agreements with RMR to provide management services to us: (1) a business management agreement, which relates to our business generally; and (2) a property management agreement, which relates to our property level operations.
Management Agreements with RMR. Our management agreements with RMR provide for an annual base management fee, an annual incentive management fee and property management and construction supervision fees, payable in cash, among other terms:
Base Management Fee. The annual base management fee payable to RMR by us for each applicable period is equal to the lesser of:
the sum of (a) 0.5% of the average aggregate historical cost of the real estate assets acquired from a REIT to which RMR provided business management or property management services, or the Transferred Assets, plus (b) 0.7% of the average aggregate historical cost of our real estate investments excluding the Transferred Assets up to $250,000, plus (c) 0.5% of the average aggregate historical cost of our real estate investments excluding the Transferred Assets exceeding $250,000; and
the sum of (a) 0.7% of the average closing price per share of our common shares on the stock exchange on which such shares are principally traded during such period, multiplied by the average number of our common shares outstanding during such period, plus the daily weighted average of the aggregate liquidation preference of each class of our preferred shares outstanding during such period, plus the daily weighted average of the aggregate principal amount of our consolidated indebtedness during such period, or, together, our Average Market Capitalization, up to $250,000, plus (b) 0.5% of our Average Market Capitalization exceeding $250,000.
The average aggregate historical cost of our real estate investments includes our consolidated assets invested, directly or indirectly, in equity interests in or loans secured by real estate and personal property owned in connection with such real estate (including acquisition related costs and costs which may be allocated to intangibles or are unallocated), all before reserves for depreciation, amortization, impairment charges or bad debts or other similar non-cash reserves.
Incentive Management Fee. The incentive management fee which may be earned by RMR for an annual period is calculated as follows:
An amount, subject to a cap based on the value of our common shares outstanding, equal to 12% of the product of:
our equity market capitalization on the last trading day of the year immediately prior to the relevant three year measurement period, and
the amount (expressed as a percentage) by which the total return per share, as defined in the business management agreement and further described below, of our common shareholders (i.e., share price appreciation plus dividends) exceeds the total shareholder return of the applicable index, or the benchmark return per share, for the relevant measurement period. The MSCI U.S. REIT/Office REIT Index is the benchmark index for periods on and after August 1, 2021, and the SNL U.S. REIT Office Index is the benchmark index for periods prior to August 1, 2021.

For purposes of the total return per share of our common shareholders, share price appreciation for a measurement period is determined by subtracting (1) the closing price of our common shares on The Nasdaq Stock Market LLC, or Nasdaq, on the last trading day of the year immediately before the first year of the applicable measurement period, or the initial share price, from (2) the average closing price of our common shares on the 10 consecutive trading days having the highest average closing prices during the final 30 trading days in the last year of the measurement period.
The calculation of the incentive management fee (including the determinations of our equity market capitalization, initial share price and the total return per share of our common shareholders) is subject to adjustments if we issue or repurchase our common shares, or if our common shares are forfeited, during the measurement period.
No incentive management fee is payable by us unless our total return per share during the measurement period is positive.
The measurement periods are three year periods ending with the year for which the incentive management fee is being calculated.
If our total return per share exceeds 12% per year in any measurement period, the benchmark return per share is adjusted to be the lesser of the total shareholder return of the applicable index for such measurement period and 12% per year, or the adjusted benchmark return per share. In instances where the adjusted benchmark return per share applies, the incentive management fee will be reduced if our total return per share is between 200 basis points and 500 basis points below the applicable index in any year by a low return factor, as defined in the business management agreement, and there will be no incentive management fee paid if, in these instances, our total return per share is more than 500 basis points below the applicable index in any year, determined on a cumulative basis (i.e., between 200 basis points and 500 basis points per year multiplied by the number of years in the measurement period and below the applicable market index).
The incentive management fee is subject to a cap. The cap is equal to the value of the number of our common shares which would, after issuance, represent 1.5% of the number of our common shares then outstanding
multiplied by the average closing price of our common shares during the 10 consecutive trading days having the highest average closing prices during the final 30 trading days of the relevant measurement period.
Incentive management fees we paid to RMR for any period may be subject to “clawback” if our financial statements for that period are restated due to material non-compliance with any financial reporting requirements under the securities laws as a result of the bad faith, fraud, willful misconduct or gross negligence of RMR and the amount of the incentive management fee we paid was greater than the amount we would have paid based on the restated financial statements.
Pursuant to our business management agreement with RMR, we recognized net business management fees of $17,376, $18,637 and $17,358 for the years ended December 31, 2022, 2021 and 2020, respectively. The net business management fees we recognized are included in general and administrative expenses in our consolidated statements of comprehensive income (loss) for these periods. The net business management fees we recognized for each of the years ended December 31, 2022, 2021 and 2020 reflect a reduction of $603, for the amortization of the liability we recorded in connection with our former investment in RMR Inc., as further described in Note 2. We did not incur any incentive management fee pursuant to our business management agreement for the years ended December 31, 2022, 2021 or 2020.
Property Management and Construction Supervision Fees. The property management fees payable to RMR by us for each applicable period are equal to 3.0% of gross collected rents and the construction supervision fees payable to RMR by us for each applicable period are equal to 5.0% of construction costs. Pursuant to our property management agreement with RMR, we recognized aggregate net property management and construction supervision fees of $25,756, $21,103 and $20,774 for each of the years ended December 31, 2022, 2021 and 2020, respectively. The net property management and construction supervision fees we recognized for the years ended December 31, 2022, 2021 and 2020 reflect a reduction of $484 for each of those years for the amortization of the liability we recorded in connection with our former investment in RMR Inc., as further described in Note 2. For the years ended December 31, 2022, 2021 and 2020, $15,839, $16,507 and $17,328, respectively, of the total net property management and construction supervision fees were expensed to other operating expenses in our consolidated statements of income (loss) and $9,917, $4,596 and $3,446, respectively, were capitalized as building improvements in our consolidated balance sheets. The amounts capitalized are being depreciated over the estimated useful lives of the related capital assets.
Expense Reimbursement. We are generally responsible for all of our operating expenses, including certain expenses incurred or arranged by RMR on our behalf. We are generally not responsible for payment of RMR’s employment, office or administrative expenses incurred to provide management services to us, except for the employment and related expenses of RMR’s employees assigned to work exclusively or partly at our properties, our share of the wages, benefits and other related costs of RMR’s centralized accounting personnel, our share of RMR’s costs for providing our internal audit function and as otherwise agreed. Our property level operating expenses are generally incorporated into rents charged to our tenants, including certain payroll and related costs incurred by RMR. We reimbursed RMR $24,371, $24,766 and $24,919 for these expenses and costs for each of the years ended December 31, 2022, 2021 and 2020, respectively. We included these amounts in other operating expenses and general and administrative expense, as applicable, for these periods.
Term. Our management agreements with RMR have terms that end on December 31, 2042, and automatically extend on December 31st of each year for an additional year, so that the terms of our management agreements thereafter end on the 20th anniversary of the date of the extension.
Termination Rights. We have the right to terminate one or both of our management agreements with RMR: (i) at any time on 60 days’ written notice for convenience, (ii) immediately on written notice for cause, as defined therein, (iii) on written notice given within 60 days after the end of an applicable calendar year for a performance reason, as defined therein, and (iv) by written notice during the 12 months following a change of control of RMR, as defined therein. RMR has the right to terminate the management agreements for good reason, as defined therein.
Termination Fee. If we terminate one or both of our management agreements with RMR for convenience, or if RMR terminates one or both of our management agreements for good reason, we have agreed to pay RMR a termination fee in an amount equal to the sum of the present values of the monthly future fees, as defined therein, for the terminated management agreement(s) for the term that was remaining prior to such termination, which, depending on the time of termination, would be between 19 and 20 years. If we terminate one or both of our management agreements with RMR
for a performance reason, we have agreed to pay RMR the termination fee calculated as described above, but assuming a 10-year term was remaining prior to the termination. We are not required to pay any termination fee if we terminate our management agreements with RMR for cause or as a result of a change of control of RMR.
Transition Services. RMR has agreed to provide certain transition services to us for 120 days following an applicable termination by us or notice of termination by RMR, including cooperating with us and using commercially reasonable efforts to facilitate the orderly transfer of the management and real estate investment services provided under our business management agreement and to facilitate the orderly transfer of the management of the managed properties under our property management agreement, as applicable.
Vendors. Pursuant to our management agreements with RMR, RMR may from time to time negotiate on our behalf with certain third party vendors and suppliers for the procurement of goods and services to us. As part of this arrangement, we may enter agreements with RMR and other companies to which RMR or its subsidiaries provide management services for the purpose of obtaining more favorable terms from such vendors and suppliers.
Investment Opportunities. Under our business management agreement with RMR, we acknowledge that RMR may engage in other activities or businesses and act as the manager to any other person or entity (including other REITs) even though such person or entity has investment policies and objectives similar to ours and we are not entitled to preferential treatment in receiving information, recommendations and other services from RMR.
Management Agreements between our Joint Ventures and RMR. RMR provides management services to our two unconsolidated joint ventures. We are not obligated to pay management fees to RMR under our management agreements with RMR for the services it provides regarding the joint ventures. The joint ventures pay management fees directly to RMR.
v3.22.4
Related Person Transactions
12 Months Ended
Dec. 31, 2022
Related Party Transactions [Abstract]  
Related Person Transactions Related Person Transactions
We have relationships and historical and continuing transactions with RMR, RMR Inc., and others related to them, including other companies to which RMR or its subsidiaries provide management services and some of which have trustees, directors or officers who are also our Trustees or officers. RMR is a majority owned subsidiary of RMR Inc. The Chair of our Board of Trustees and one of our Managing Trustees, Adam Portnoy, is the sole trustee, an officer and the controlling shareholder of ABP Trust, which is the controlling shareholder of RMR Inc., the chair of the board of directors, a managing director, the president and chief executive officer of RMR Inc. and an officer and employee of RMR. Jennifer Clark, our other Managing Trustee, is a managing director and the executive vice president, general counsel and secretary of RMR Inc., an officer and employee of RMR and an officer of ABP Trust. Each of our officers is also an officer and employee of RMR. Some of our Independent Trustees also serve as independent trustees or independent directors of other public companies to which RMR or its subsidiaries provide management services. Mr. Portnoy serves as chair of the boards and as a managing director or managing trustee of these public companies. Other officers of RMR, including Ms. Clark, serve as managing trustees, managing directors or officers of certain of these companies.
Our Manager, RMR. We have two agreements with RMR to provide management services to us. RMR also provides management services to our unconsolidated joint ventures. See Note 6 for more information regarding our and our unconsolidated joint ventures’ management agreements with RMR.
Leases with RMR. We lease office space to RMR in certain of our properties for RMR’s property management offices. Pursuant to our lease agreements with RMR, we recognized rental income from RMR for leased office space of $1,126, $1,138 and $1,120 for the years ended December 31, 2022, 2021 and 2020, respectively. Our office space leases with RMR are terminable by RMR if our management agreements with RMR are terminated.
Share Awards to RMR Employees. As described further in Note 11, we award shares to our officers and other employees of RMR annually. Generally, one fifth of these awards vest on the grant date and one fifth vests on each of the next four anniversaries of the grant dates. In certain instances, we may accelerate the vesting of an award, such as in connection with the award holder’s retirement as an officer of us or an officer or employee of RMR. These awards to RMR employees are in addition to the share awards to our Managing Trustees, as Trustee compensation, and the fees we paid to RMR. See Note 11 for more information regarding our share awards and activity as well as certain share purchases we made in connection with share award recipients satisfying tax withholding obligations on vesting share awards.
Sonesta. In June 2021, we entered into a 30-year lease agreement with a subsidiary of Sonesta International Hotels Corporation, or Sonesta, in connection with the redevelopment of an office property we own in Washington, D.C. as a mixed-
use property. Sonesta’s lease is for the planned full-service hotel component of the property that will include approximately 230,000 rentable square feet, which represents approximately 54% of the total square feet upon completion of the redevelopment. The term of the lease commences upon our delivery of the completed hotel, which we estimate to occur in the second quarter of 2023. Sonesta has two options to extend the term for 10 years each. Pursuant to the lease agreement, Sonesta will pay us annual base rent of approximately $6,436 beginning 18 months after the lease commences. The annual base rent will increase by 10% every five years throughout the term. Sonesta is also obligated to pay its pro rata share of the operating costs for the property. We estimate that the total cost to build the hotel space will be approximately $66,000. Mr. Portnoy is a director and controlling shareholder of Sonesta and Ms. Clark is a director of Sonesta. Another officer and employee of RMR is a director and the president and chief executive officer of Sonesta.Affiliates Insurance Company. Until its dissolution on February 13, 2020, we, ABP Trust and five other companies to which RMR provides management services owned Affiliates Insurance Company, or AIC, in equal portions. In connection with AIC’s dissolution, we and each other AIC shareholder received a liquidating distribution of $287 in June 2020 and a final liquidating distribution of $11 in December 2021.
v3.22.4
Concentration
12 Months Ended
Dec. 31, 2022
Risks and Uncertainties [Abstract]  
Concentration Concentration
Tenant and Credit Concentration
We define annualized rental income as the annualized contractual base rents from our tenants pursuant to our lease agreements as of the measurement date, plus straight line rent adjustments and estimated recurring expense reimbursements to be paid to us, and excluding lease value amortization. As of December 31, 2022, 2021 and 2020, the U.S. government and certain state and other government tenants combined were responsible for approximately 28.5%, 28.9% and 35.3%, respectively, of our annualized rental income. The U.S. government is our largest tenant by annualized rental income and represented approximately 19.7%, 19.5%, and 25.2% of our annualized rental income as of December 31, 2022, 2021 and 2020, respectively.
Geographic Concentration
At December 31, 2022, our 160 wholly owned properties were located in 30 states and the District of Columbia. Properties located in California, Virginia, Illinois, the District of Columbia and Georgia were responsible for approximately 11.7%, 11.0%, 10.8%, 10.5%, and 9.0% of our annualized rental income as of December 31, 2022, respectively.
v3.22.4
Indebtedness
12 Months Ended
Dec. 31, 2022
Debt Disclosure [Abstract]  
Indebtedness Indebtedness
At December 31, 2022 and 2021, our outstanding indebtedness consisted of the following:
 December 31,
20222021
Revolving credit facility, due in 2023$195,000 $— 
Senior unsecured notes, 4.00% interest rate, due in 2022 (1)
— 300,000 
Senior unsecured notes, 4.25% interest rate, due in 2024
350,000 350,000 
Senior unsecured notes, 4.50% interest rate, due in 2025
650,000 650,000 
Senior unsecured notes, 2.650% interest rate, due in 2026
300,000 300,000 
Senior unsecured notes, 2.400% interest rate, due in 2027
350,000 350,000 
Senior unsecured notes, 3.450% interest rate, due in 2031
400,000 400,000 
Senior unsecured notes, 6.375% interest rate, due in 2050
162,000 162,000 
Mortgage note payable, 4.220% interest rate, due in 2022 (2)
— 25,055 
Mortgage note payable, 3.700% interest rate, due in 2023
50,000 50,000 
Mortgage note payable, 4.800% interest rate, due in 2023 (3)
— 23,246 
2,457,000 2,610,301 
Unamortized debt premiums, discounts and issuance costs(24,208)(32,351)
$2,432,792 $2,577,950 
(1)These senior notes were redeemed in June 2022.
(2)This mortgage note was prepaid, at par plus accrued interest, in April 2022.
(3)This mortgage note was prepaid, at a discounted amount of $22,176 plus accrued interest, in October 2022.
Our $750,000 revolving credit facility is governed by a credit agreement, or our credit agreement, with a syndicate of institutional lenders that includes a feature under which the maximum aggregate borrowing availability may be increased to up to $1,950,000 in certain circumstances.
Our $750,000 revolving credit facility is available for general business purposes, including acquisitions. In November 2022, we exercised our option to extend the maturity date of our revolving credit facility to July 31, 2023 and paid an extension fee of $469 and, subject to our payment of an extension fee and meeting certain other conditions, we have the option to extend the maturity date of our revolving credit facility by one additional six month period. We can borrow, repay and reborrow funds available under our revolving credit facility until maturity and no principal repayment is due until maturity. We are required to pay interest at a rate of LIBOR plus a premium, which was 110 basis points per annum at December 31, 2022, on the amount outstanding under our revolving credit facility. We also pay a facility fee on the total amount of lending commitments under our revolving credit facility, which was 25 basis points per annum at December 31, 2022. Both the interest rate premium and facility fee are subject to adjustment based upon changes to our credit ratings. As of December 31, 2022 and 2021, the annual interest rate payable on borrowings under our revolving credit facility was 5.4% and 1.2%, respectively. The weighted average annual interest rate for borrowings under our revolving credit facility was 4.0%, 1.2% and 2.0% for the years ended December 31, 2022, 2021 and 2020, respectively. As of December 31, 2022 and February 14, 2023, we had $195,000 and $220,000, respectively, outstanding under our revolving credit facility and $555,000 and $530,000, respectively, available for borrowing.
Our credit agreement and senior unsecured notes indentures and their supplements provide for acceleration of payment of all amounts due thereunder upon the occurrence and continuation of certain events of default, such as, in the case of our credit agreement, a change of control of us, which includes RMR ceasing to act as our business and property manager. Our credit agreement and senior unsecured notes indentures and their supplements also contain covenants, including covenants that restrict our ability to incur debts, require us to comply with certain financial covenants and, in the case of our credit agreement, restrict our ability to make distributions under certain circumstances. We believe we were in compliance with the terms and conditions of the respective covenants under our credit agreement and senior unsecured notes indentures and their supplements at December 31, 2022.
Senior Unsecured Note Redemption
In June 2022, we redeemed, at par plus accrued interest, all $300,000 of our 4.00% senior unsecured notes due July 2022. As a result of this redemption, we recognized a loss on early extinguishment of debt of $77 during the year ended December 31, 2022, from the write off of unamortized discounts and debt issuance costs.
Mortgage Note Prepayments
In April 2022, we prepaid, at par plus accrued interest, a mortgage note secured by one property with an outstanding principal balance of $24,863, an annual interest rate of 4.22% and a maturity date in July 2022.
In October 2022, we prepaid, at a discounted amount of $22,176 plus accrued interest, a mortgage note secured by one property with an outstanding principal balance of $22,901, an annual interest rate of 4.80% and a maturity date in June 2023. As a result of this discounted prepayment, we recognized a gain on early extinguishment of debt of $759 during the year ended December 31, 2022, after the write off of unamortized premiums and debt issuance costs.
At December 31, 2022, one of our properties with a net book value of $55,071 was encumbered by a mortgage note with a principal balance of $50,000. Our mortgage note is non-recourse, subject to certain limited exceptions, and does not contain any material financial covenants.
None of our unsecured debt obligations require sinking fund payments prior to their maturity dates.
The required principal payments due during the next five years and thereafter under all our outstanding consolidated debt as of December 31, 2022 were as follows:
YearPrincipal Payment
2023$245,000 
2024350,000 
2025650,000 
2026300,000 
2027350,000 
Thereafter562,000 
Total$2,457,000 
(1)
(1)Total consolidated debt outstanding as of December 31, 2022, net of unamortized premiums, discounts and issuance costs totaling $24,208, was $2,432,792.
v3.22.4
Fair Value of Assets and Liabilities
12 Months Ended
Dec. 31, 2022
Fair Value Disclosures [Abstract]  
Fair Value of Assets and Liabilities Fair Value of Assets and Liabilities
Our financial instruments include our cash and cash equivalents, restricted cash, rents receivable, accounts payable, a revolving credit facility, senior unsecured notes, a mortgage note payable, amounts due to related persons, other accrued expenses and security deposits. At December 31, 2022 and 2021, the fair values of our financial instruments approximated their carrying values in our consolidated financial statements, due to their short term nature or floating interest rates, except as follows:
 As of December 31, 2022As of December 31, 2021
Financial Instrument
Carrying Value (1)
Fair Value
Carrying Value (1)
Fair Value
Senior unsecured notes, 4.00% interest rate, due in 2022 (2)
$— $— $299,500 $304,148 
Senior unsecured notes, 4.25% interest rate, due in 2024
346,863 331,601 344,581 365,449 
Senior unsecured notes, 4.50% interest rate, due in 2025
642,818 589,388 639,370 687,749 
Senior unsecured notes, 2.650% interest rate, due in 2026
297,839 232,770 297,213 298,502 
Senior unsecured notes, 2.400% interest rate, due in 2027
347,466 256,606 346,845 339,764 
Senior unsecured notes, 3.450% interest rate, due in 2031
396,178 268,004 395,744 388,458 
Senior unsecured notes, 6.375% interest rate, due in 2050
156,711 113,075 156,519 177,098 
Mortgage notes payable (3)
49,917 49,099 98,178 100,294 
Total $2,237,792 $1,840,543 $2,577,950 $2,661,462 
(1)Includes unamortized debt premiums, discounts and issuance costs totaling $24,208 and $32,351 as of December 31, 2022 and 2021, respectively.
(2)These senior notes were redeemed in June 2022.
(3)Balance as of December 31, 2021 includes a mortgage note secured by one property with an outstanding principal amount of $25,055 that was prepaid, at par plus accrued interest, in April 2022 and a mortgage note secured by one property with an outstanding principal balance of $23,246 that was prepaid, at a discounted amount of $22,176 plus accrued interest, in October 2022.
We estimated the fair values of our senior unsecured notes (except for our senior unsecured notes due 2050) using an average of the bid and ask price of the notes (Level 2 inputs as defined in the fair value hierarchy under GAAP) as of the measurement date. We estimated the fair values of our senior unsecured notes due 2050 based on the closing price on Nasdaq (Level 1 inputs as defined in the fair value hierarchy under GAAP) as of the measurement date. We estimated the fair values of our mortgage notes payable using discounted cash flow analyses and currently prevailing market rates (Level 3 inputs as defined in the fair value hierarchy under GAAP) as of the measurement date. Because Level 3 inputs are unobservable, our estimated fair values may differ materially from the actual fair values.
v3.22.4
Shareholders' Equity
12 Months Ended
Dec. 31, 2022
Equity [Abstract]  
Shareholders' Equity Shareholders’ Equity
Share Awards
We have common shares available for issuance under the terms of our Amended and Restated 2009 Incentive Share Award Plan, or the 2009 Plan. During the years ended December 31, 2022, 2021 and 2020, we awarded to our officers and other employees of RMR annual share awards of 141,200, 117,800 and 108,600 of our common shares, respectively, valued at $2,470, $2,994 and $2,502, in aggregate, respectively. We also awarded each of our then Trustees 3,500 of our common shares in each of 2022, 2021 and 2020 as part of their annual compensation. These awards had aggregate values of $593 ($66 per Trustee), $837 ($105 per Trustee) and $745 ($93 per Trustee) in 2022, 2021 and 2020, respectively. The values of the share awards were based upon the closing price of our common shares trading on Nasdaq on the date of award. The common shares awarded to our officers and certain other employees of RMR vest in five equal annual installments beginning on the date of award. The common shares awarded to our Trustees vest immediately. We recognize share forfeitures as they occur and include the value of awarded shares in general and administrative expenses ratably over the vesting period.
A summary of shares awarded, forfeited, vested and unvested under the terms of the 2009 Plan for the years ended December 31, 2022, 2021 and 2020, is as follows:
202220212020
Number of SharesWeighted Average Grant Date Fair ValueNumber of SharesWeighted Average Grant Date Fair ValueNumber of SharesWeighted Average Grant Date Fair Value
Unvested at beginning of year182,224 $26.23 157,521 $29.26 106,680 $40.16 
Awarded172,700 $17.74 145,800 $26.28 136,600 $23.77 
Forfeited (1,900)$25.97 (700)$25.97 (586)$43.75 
Vested(121,723)$23.24 (120,397)$30.24 (85,173)$34.02 
Unvested at end of year231,301 $21.47 182,224 $26.23 157,521 $29.26 
The 231,301 unvested shares as of December 31, 2022 are scheduled to vest as follows: 84,941 shares in 2023, 67,620 shares in 2024, 50,500 shares in 2025 and 28,240 shares in 2026. As of December 31, 2022, the estimated future compensation expense for the unvested shares was $4,343. The weighted average period over which the compensation expense will be recorded is approximately 22 months. During the years ended December 31, 2022, 2021 and 2020, we recorded $2,905, $2,868 and $3,315, respectively, of compensation expense related to the 2009 Plan. At December 31, 2022, 847,631 of our common shares remained available for issuance under the 2009 Plan.
Share Purchases
During the years ended December 31, 2022, 2021 and 2020, we purchased 30,821, 37,801 and 19,589 of our common shares, respectively, valued at weighted average share prices of $17.54, $26.55 and $22.15 per common share, respectively, from certain of our current and former Trustees and officers and certain current and former officers and employees of RMR in satisfaction of tax withholding and payment obligations in connection with the vesting of awards of our common shares.
Distributions
During the years ended December 31, 2022, 2021 and 2020, we paid distributions on our common shares as follows:
Annual Per Share DistributionTotal DistributionsCharacterization of Distributions
Year Return of CapitalOrdinary IncomeQualified Dividend
2022$2.20 $106,630 62.68%37.32%—%
2021$2.20 $106,368 —%100.00%—%
2020$2.20 $106,121 —%100.00%—%
On January 12, 2023, we declared a regular quarterly distribution payable to common shareholders of record on January 23, 2023 in the amount of $0.55 per share, or approximately $26,700. We expect to pay this distribution on or about February 16, 2023.
v3.22.4
SCHEDULE III REAL ESTATE AND ACCUMULATED DEPRECIATION
12 Months Ended
Dec. 31, 2022
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation Disclosure [Abstract]  
SCHEDULE III REAL ESTATE AND ACCUMULATED DEPRECIATION
   Initial Cost to CompanyCosts Capitalized Subsequent to AcquisitionCost amount carried at Close of Period
PropertyLocationNumber of Properties
Encumbrances (1)
LandBuildings
and
Equipment
Impairments/
Writedowns
LandBuildings
and
Equipment
Total (2)
Accumulated
Depreciation
(3)
Date(s)
Acquired
Original
Construction
Date(s)
445 Jan Davis Drive Huntsville, AL 1$— $1,501 $1,492 $— $— $1,501 $1,492 $2,993 $(160)12/31/20182007
131 Clayton Street Montgomery, AL 1— 920 9,084 417 — 920 9,501 10,421 (2,690)6/22/20112007
4344 Carmichael Road Montgomery, AL 1— 1,374 11,658 562 — 1,374 12,220 13,594 (2,766)12/17/20132009
15451 North 28th Avenue Phoenix, AZ 1— 1,917 7,416 765 — 1,917 8,181 10,098 (1,756)9/10/20141996
16001 North 28th Avenue Phoenix, AZ 1— 3,355 412 1,146 — 3,355 1,558 4,913 (273)12/31/20181998
711 S 14th Avenue Safford, AZ 1— 460 11,708 884 (4,440)364 8,248 8,612 (1,381)6/16/20101992
Regents Center Tempe, AZ 2— 4,121 3,042 293 — 4,121 3,335 7,456 (660)12/31/20181988
Campbell Place Carlsbad, CA 2— 5,769 3,871 7,517 — 5,769 11,388 17,157 (2,438)12/31/20182007
Folsom Corporate Center Folsom, CA 1— 2,904 5,583 1,567 — 2,904 7,150 10,054 (816)12/31/20182008
Bayside Technology Park Fremont, CA 1— 10,784 648 198 — 10,784 846 11,630 (110)12/31/20181990
10949 N. Mather Boulevard Rancho Cordova, CA 1— 562 16,923 1,012 — 562 17,935 18,497 (4,165)10/30/20132012
11020 Sun Center Drive Rancho Cordova, CA 1— 1,466 8,797 1,409 — 1,466 10,206 11,672 (1,827)12/20/20161983
100 Redwood Shores Parkway Redwood City, CA 1— 14,454 7,721 — — 14,454 7,721 22,175 (857)12/31/20181993
3875 Atherton Road Rocklin, CA 1— 177 853 23 — 177 876 1,053 (95)12/31/20181991
801 K Street Sacramento, CA 1— 4,688 61,994 9,465 — 4,688 71,459 76,147 (12,968)1/29/20161989
9815 Goethe Road Sacramento, CA 1— 1,450 9,465 1,603 — 1,450 11,068 12,518 (3,109)9/14/20111992
Capitol Place Sacramento, CA 1— 2,290 35,891 8,767 — 2,290 44,658 46,948 (14,418)12/17/20091988
4560 Viewridge Road San Diego, CA 1— 4,269 18,316 5,146 — 4,347 23,384 27,731 (13,942)3/31/19971996
2115 O’Nel Drive San Jose, CA 1— 12,305 5,062 350 — 12,305 5,412 17,717 (587)12/31/20181984
North First Street San Jose, CA 1— 8,311 4,003 411 — 8,311 4,414 12,725 (572)12/31/20181984
Rio Robles Drive San Jose, CA 3— 23,687 13,698 12,637 — 23,687 26,335 50,022 (2,332)12/31/20181984
2450 and 2500 Walsh Avenue Santa Clara, CA 2— 13,374 16,651 194 — 13,374 16,845 30,219 (1,878)12/31/20181982
3250 and 3260 Jay Street Santa Clara, CA 2— 19,899 14,051 20 — 19,899 14,071 33,970 (1,558)12/31/20181982
603 San Juan Avenue Stockton, CA 1— 563 5,470 93 — 563 5,563 6,126 (1,436)7/20/20122012
350 West Java Drive Sunnyvale, CA 1— 24,609 462 408 — 24,609 870 25,479 (93)12/31/20181984
7958 South Chester Street Centennial, CO 1— 6,682 7,153 1,410 — 6,682 8,563 15,245 (924)12/31/20182000
350 Spectrum Loop Colorado Springs, CO 1— 3,650 7,732 573 — 3,650 8,305 11,955 (933)12/31/20182000
12795 West Alameda Parkway Lakewood, CO 1— 2,640 23,777 1,535 — 2,640 25,312 27,952 (8,177)1/15/20101988
Corporate Center Lakewood, CO 3— 2,887 27,537 2,689 — 2,887 30,226 33,113 (14,630)10/11/20021980
   Initial Cost to CompanyCosts Capitalized Subsequent to AcquisitionCost amount carried at Close of Period
PropertyLocationNumber of Properties
Encumbrances (1)
LandBuildings
and
Equipment
Impairments/
Writedowns
LandBuildings
and
Equipment
Total (2)
Accumulated
Depreciation
(3)
Date(s)
Acquired
Original
Construction
Date(s)
11 Dupont Circle, NW Washington, DC 1— 28,255 44,743 18,712 — 28,255 63,455 91,710 (10,002)10/2/20171974
1211 Connecticut Avenue, NW Washington, DC 1— 30,388 24,667 3,871 — 30,388 28,538 58,926 (4,681)10/2/20171967
1401 K Street, NW Washington, DC 1— 29,215 34,656 7,146 — 29,215 41,802 71,017 (7,675)10/2/20171929
20 Massachusetts Avenue Washington, DC 1— 12,009 51,527 178,984 — 12,231 230,289 242,520 (42,535)3/31/19971996
440 First Street, NW Washington, DC 1— 27,903 38,624 2,315 — 27,903 40,939 68,842 (5,678)10/2/20171982
625 Indiana Avenue Washington, DC 1— 26,000 25,955 10,652 — 26,000 36,607 62,607 (10,956)8/17/20101989
840 First Street, NE Washington, DC 1— 42,727 73,278 3,949 — 42,727 77,227 119,954 (11,073)10/2/20172003
10350 NW 112th Avenue Miami, FL 1— 4,798 2,757 1,903 — 4,798 4,660 9,458 (441)12/31/20182002
7850 Southwest 6th Court Plantation, FL 1— 4,800 30,592 1,167 — 4,800 31,759 36,559 (9,022)5/12/20111999
8900 Grand Oak Circle Tampa, FL 1— 1,100 11,773 1,142 — 1,100 12,915 14,015 (3,830)10/15/20101994
180 Ted Turner Drive SW Atlanta, GA 1— 5,717 20,017 726 — 5,717 20,743 26,460 (5,401)7/25/20122007
1224 Hammond Drive Atlanta, GA 1— 13,040 135,459 11,627 — 13,040 147,086 160,126 (6,189)6/25/20212020
Corporate Square Atlanta, GA 5— 3,996 29,762 28,076 — 3,996 57,838 61,834 (20,701)7/16/20041967
Executive Park Atlanta, GA 1— 1,521 11,826 4,123 — 1,521 15,949 17,470 (8,424)7/16/20041972
One Georgia Center Atlanta, GA 1— 10,250 27,933 18,781 — 10,250 46,714 56,964 (11,782)9/30/20111968
One Primerica Parkway Duluth, GA 1— 6,927 22,951 — — 6,927 22,951 29,878 (2,545)12/31/20182013
4712 Southpark Boulevard Ellenwood, GA 1— 1,390 19,635 248 — 1,390 19,883 21,273 (5,152)7/25/20122005
8305 NW 62nd Avenue Johnston, IA 1— 2,649 7,997 — — 2,649 7,997 10,646 (887)12/31/20182011
1185, 1249 & 1387 S. Vinnell Way Boise, ID 3— 3,390 29,026 1,101 — 3,390 30,127 33,517 (7,835)9/11/20121996; 1997; 2002
2020 S. Arlington Heights Arlington Heights, IL 1— 1,450 13,588 2,139 — 1,450 15,727 17,177 (4,654)12/29/20091988
400 South Jefferson Street Chicago, IL 149,917 19,379 20,115 783 — 19,379 20,898 40,277 (2,381)12/31/20181947
1000 W. Fulton Chicago, IL 1— 42,935 252,914 94 — 42,935 253,008 295,943 (12,816)6/24/20212015
HUB 1415 Naperville, IL 1— 12,333 20,586 16,211 — 12,333 36,797 49,130 (4,616)12/31/20182001
440 North Fairway Drive Vernon Hills, IL 1— 4,465 441 10 — 4,465 451 4,916 (51)12/31/20181992
7601 and 7635 Interactive Way Indianapolis, IN 2— 3,337 14,522 34 — 3,337 14,556 17,893 (1,517)12/31/20182003
Intech Park Indianapolis, IN 3— 4,170 69,759 10,389 — 4,170 80,148 84,318 (23,417)10/14/20112000; 2001; 2008
7125 Industrial Road Florence, KY 1— 1,698 11,722 293 — 1,698 12,015 13,713 (3,030)12/31/20121980
251 Causeway Street Boston, MA 3— 26,851 36,756 4,662 — 26,851 41,418 68,269 (7,688)8/17/20101987
   Initial Cost to CompanyCosts Capitalized Subsequent to AcquisitionCost amount carried at Close of Period
PropertyLocationNumber of Properties
Encumbrances (1)
LandBuildings
and
Equipment
Impairments/
Writedowns
LandBuildings
and
Equipment
Total (2)
Accumulated
Depreciation
(3)
Date(s)
Acquired
Original
Construction
Date(s)
300 Billerica Road Chelmsford, MA 1— 2,223 — 45 — 2,223 45 2,268 (13)12/31/20181984
330 Billerica Road Chelmsford, MA 1— 2,477 — 10,103 — 2,477 10,103 12,580 (1,113)12/31/20181984
75 Pleasant Street Malden, MA 1— 1,050 31,086 856 — 1,050 31,942 32,992 (10,300)5/24/20102008
25 Newport Avenue Quincy, MA 1— 2,700 9,199 2,143 — 2,700 11,342 14,042 (3,154)2/16/20111985
314 Littleton Road Westford, MA 1— 5,691 8,487 100 — 5,691 8,587 14,278 (956)12/31/20182007
Annapolis Commerce Center Annapolis, MD 2— 4,057 7,665 4,628 — 4,057 12,293 16,350 (1,679)10/2/20171989
4201 Patterson Avenue Baltimore, MD 1— 901 8,097 4,134 (85)893 12,154 13,047 (6,744)10/15/19981989
7001 Columbia Gateway Drive Columbia, MD 1— 5,642 10,352 569 — 5,642 10,921 16,563 (1,271)12/31/20182008
Hillside Center Columbia, MD 2— 3,437 4,228 971 — 3,437 5,199 8,636 (859)10/2/20172001
TenThreeTwenty Columbia, MD 1— 3,126 16,361 3,681 — 3,126 20,042 23,168 (2,782)10/2/20171982
3300 75th Avenue Landover, MD 1— 4,110 36,371 3,302 — 4,110 39,673 43,783 (12,615)2/26/20101985
Redland 520/530 Rockville, MD 3— 12,714 61,377 6,951 — 12,714 68,328 81,042 (8,937)10/2/20172008
Redland 540 Rockville, MD 1— 10,740 17,714 6,231 — 10,740 23,945 34,685 (5,635)10/2/20172003
Rutherford Business Park Windsor Mill, MD 1— 1,598 10,219 545 — 1,598 10,764 12,362 (2,741)11/16/20121972
3550 Green Court Ann Arbor, MI 1— 3,630 4,857 — — 3,630 4,857 8,487 (571)12/31/20181998
11411 E. Jefferson Avenue Detroit, MI 1— 630 18,002 567 — 630 18,569 19,199 (5,839)4/23/20102009
Rosedale Corporate Plaza Roseville, MN 1— 672 6,045 1,547 — 672 7,592 8,264 (4,636)12/1/19991987
1300 Summit Street Kansas City, MO 1— 2,776 12,070 900 — 2,776 12,970 15,746 (3,334)9/27/20121998
2555 Grand Boulevard Kansas City, MO 1— 4,209 51,522 4,778 — 4,209 56,300 60,509 (6,356)12/31/20182003
4241 NE 34th Street Kansas City, MO 1— 1,133 5,649 4,908 — 1,470 10,220 11,690 (5,127)3/31/19971995
1220 Echelon Parkway Jackson, MS 1— 440 25,458 561 — 440 26,019 26,459 (6,800)7/25/20122009
2300 and 2400 Yorkmont Road Charlotte, NC 2— 1,334 19,075 3,200 — 1,334 22,275 23,609 (2,725)12/31/20181995
18010 and 18020 Burt Street Omaha, NE 2— 6,977 12,500 — — 6,977 12,500 19,477 (1,386)12/31/20182012
500 Charles Ewing Boulevard Ewing, NJ 1— 4,808 26,002 281 — 4,808 26,283 31,091 (2,883)12/31/20182012
299 Jefferson Road Parsippany, NJ 1— 4,543 2,914 935 — 4,543 3,849 8,392 (554)12/31/20182011
One Jefferson Road Parsippany, NJ 1— 4,415 5,249 63 — 4,415 5,312 9,727 (588)12/31/20182009
Airline Corporate Center Colonie, NY 1— 790 6,400 1,827 — 790 8,227 9,017 (1,876)6/22/20122004
1212 Pittsford - Victor Road Pittsford, NY 1— 608 78 847 — 608 925 1,533 (106)12/31/20181965
   Initial Cost to CompanyCosts Capitalized Subsequent to AcquisitionCost amount carried at Close of Period
PropertyLocationNumber of Properties
Encumbrances (1)
LandBuildings
and
Equipment
Impairments/
Writedowns
LandBuildings
and
Equipment
Total (2)
Accumulated
Depreciation
(3)
Date(s)
Acquired
Original
Construction
Date(s)
2231 Schrock Road Columbus, OH 1— 716 217 578 — 716 795 1,511 (98)12/31/20181999
8800 Tinicum Boulevard Philadelphia, PA 1— 5,573 22,686 5,934 — 5,573 28,620 34,193 (2,738)12/31/20182000
446 Wrenplace Road Fort Mill, SC 1— 5,031 22,524 — — 5,031 22,524 27,555 (1,140)12/22/20202019
9680 Old Bailes Road Fort Mill, SC 1— 834 2,944 53 — 834 2,997 3,831 (333)12/31/20182007
16001 North Dallas Parkway Addison, TX 2— 10,282 63,071 1,911 — 10,282 64,982 75,264 (7,529)12/31/20181987
Research Park Austin, TX 2— 4,258 13,747 199 — 4,258 13,946 18,204 (2,787)12/31/20181999
10451 Clay Road Houston, TX 1— 5,495 10,253 2,432 — 5,495 12,685 18,180 (1,139)12/31/20182013
202 North Castlegory Road Houston, TX 1— 863 5,024 — 863 5,032 5,895 (524)12/31/20182016
4221 W. John Carpenter Freeway Irving, TX 1— 1,413 2,365 1,843 — 1,413 4,208 5,621 (1,091)12/31/20181995
8675, 8701-8711 Freeport Pkwy and 8901 Esters Boulevard Irving, TX 3— 10,185 31,566 68 — 10,185 31,634 41,819 (3,500)12/31/20181990
1511 East Common Street New Braunfels, TX 1— 4,965 1,266 251 — 4,965 1,517 6,482 (223)12/31/20182005
2900 West Plano Parkway Plano, TX 1— 6,819 8,831 — — 6,819 8,831 15,650 (979)12/31/20181998
3400 West Plano Parkway Plano, TX 1— 4,543 15,964 321 — 4,543 16,285 20,828 (1,828)12/31/20181994
3600 Wiseman Boulevard San Antonio, TX 1— 3,493 6,662 3,309 — 3,493 9,971 13,464 (1,714)12/31/20182004
701 Clay Road Waco, TX 1— 2,030 8,708 14,479 — 2,060 23,157 25,217 (8,473)12/23/19971997
1800 Novell Place Provo, UT 1— 7,487 43,487 11,404 — 7,487 54,891 62,378 (5,233)12/31/20182000
4885-4931 North 300 West Provo, UT 2— 3,915 9,429 21 — 3,915 9,450 13,365 (1,113)12/31/20182009
14660, 14672 & 14668 Lee Road Chantilly, VA 3— 6,966 74,214 7,567 — 6,966 81,781 88,747 (12,503)12/22/20161998; 2002; 2006
Enterchange at Meadowville Chester, VA 1— 1,478 9,594 1,369 — 1,478 10,963 12,441 (2,367)8/28/20131999
7987 Ashton Avenue Manassas, VA 1— 1,562 8,253 1,069 — 1,562 9,322 10,884 (1,628)1/3/20171989
Two Commercial Place Norfolk, VA 1— 4,494 21,508 780 — 4,494 22,288 26,782 (2,350)12/31/20181974
1759 Business Center Drive Reston, VA 1— 4,033 28,517 1,562 — 4,033 30,079 34,112 (6,349)5/28/20141987
1760 Business Center Drive Reston, VA 1— 5,033 50,141 6,251 — 5,033 56,392 61,425 (11,959)5/28/20141987
1775 Wiehle Avenue Reston, VA 1— 4,138 26,120 4,552 — 4,138 30,672 34,810 (4,218)10/2/20172001
9201 Forest Hill Avenue Richmond, VA 1— 1,344 375 580 — 1,344 955 2,299 (165)12/31/20181985
9960 Mayland Drive Richmond, VA 1— 2,614 15,930 3,812 — 2,614 19,742 22,356 (4,402)5/20/20141994
1751 Blue Hills Drive Roanoke, VA 1— 2,689 7,761 — — 2,689 7,761 10,450 (861)12/31/20182003
Atlantic Corporate Park Sterling, VA 2— 5,752 29,316 2,885 — 5,752 32,201 37,953 (4,536)10/2/20172008
Orbital Sciences Campus Sterling, VA 3— 12,275 19,320 1,876 — 12,275 21,196 33,471 (2,429)12/31/20182001
   Initial Cost to CompanyCosts Capitalized Subsequent to AcquisitionCost amount carried at Close of Period
PropertyLocationNumber of Properties
Encumbrances (1)
LandBuildings
and
Equipment
Impairments/
Writedowns
LandBuildings
and
Equipment
Total (2)
Accumulated
Depreciation
(3)
Date(s)
Acquired
Original
Construction
Date(s)
Sterling Park Business Center Sterling, VA 1— 5,871 44,324 109 — 5,871 44,433 50,304 (5,832)10/2/20172016
65 Bowdoin Street S. Burlington, VT 1— 700 8,416 140 — 700 8,556 9,256 (2,742)4/9/20102009
Stevens Center Richland, WA 2— 3,970 17,035 4,737 — 4,042 21,700 25,742 (12,262)3/31/19971995
Unison Elliott Bay-Lab Space Seattle, WA 2— 17,316 34,281 49,266 — 17,316 83,547 100,863 (4,180)12/31/20182000
Unison Elliott Bay-Office Space Seattle, WA 1— 9,324 18,459 2,122 — 9,324 20,581 29,905 (2,251)12/31/20182000
5353 Yellowstone Road Cheyenne, WY 1— 1,915 8,217 2,085 — 1,950 10,267 12,217 (5,872)3/31/19971995
157$49,917 $820,568 $2,531,553 $588,478 $(4,525)$821,238 $3,114,836 $3,936,074 $(561,458)
Properties Held for Sale
Parham Place (4)
 Richmond, VA 3— 913 1,099 572 — 913 1,671 2,584 (188)6/9/20112006
3— 913 1,099 572 — 913 1,671 2,584 (188)
160$49,917 $821,481 $2,532,652 $589,050 $(4,525)$822,151 $3,116,507 $3,938,658 $(561,646)
(1) Represents mortgage debt, net of the unamortized balance of the fair value adjustments and debt issuance costs totaling $83.
(2) Excludes the value of real estate intangibles. Aggregate cost for federal income tax purposes is approximately $7,360,476.
(3) Depreciation on building and improvements is provided for periods ranging up to 40 years and on equipment up to seven years.
(4) Properties were sold in January 2023.
An analysis of the carrying amount of real estate properties and accumulated depreciation is as follows:
 Real Estate PropertiesAccumulated Depreciation
Balance at December 31, 2019$3,493,231 $387,656 
Additions122,116 83,828 
Loss on asset impairment(2,954)— 
Disposals(31,193)(13,125)
Cost basis adjustment (1)
(3,968)(3,968)
Reclassification of assets of properties held for sale(55,089)(2,477)
Balance at December 31, 20203,522,143 451,914 
Additions584,805 92,266 
Loss on asset impairment(58,696)— 
Disposals(72,137)(8,675)
Cost basis adjustment (1)
(37,239)(37,239)
Reclassification of assets of properties held for sale(27,790)(2,354)
Balance at December 31, 20213,911,086 495,912 
Additions222,951 96,966 
Loss on asset impairment(17,303)— 
Disposals(173,841)(26,997)
Cost basis adjustment (1)
(4,235)(4,235)
Reclassification of assets of properties held for sale(2,584)(188)
Balance at December 31, 2022$3,936,074 $561,458 
(1)    Represents the reclassification between accumulated depreciation and building made to certain properties reclassified as assets of properties held for sale at fair value less costs to sell in accordance with GAAP.
v3.22.4
Summary of Significant Accounting Policies (Policies)
12 Months Ended
Dec. 31, 2022
Accounting Policies [Abstract]  
Basis of Presentation Basis of Presentation. These consolidated financial statements include the accounts of us and our subsidiaries, all of which are wholly owned directly or indirectly by us. All intercompany transactions and balances with or among our consolidated subsidiaries have been eliminated.
Real Estate Properties
Real Estate Properties. We record our properties at cost and provide depreciation on real estate investments on a straight line basis over estimated useful lives generally ranging from 7 to 40 years. In some circumstances, we engage independent real estate appraisal firms to provide market information and evaluations which are relevant to our purchase price allocations and determinations of useful lives; however, we are ultimately responsible for the purchase price allocations and determinations of useful lives.
We allocate the purchase prices of our properties to land, buildings and improvements based on determinations of the relative fair values of these assets assuming the properties are vacant. We determine the fair value of each property using methods similar to those used by independent appraisers, which may involve estimated cash flows that are based on a number of factors, including capitalization rates and discount rates, among others. We allocate a portion of the purchase price of our properties to above market and below market leases based on the present value (using an interest rate which reflects the risks associated with acquired in place leases at the time each property was acquired by us) of the difference, if any, between (i) the contractual amounts to be paid pursuant to the acquired in place leases and (ii) our estimates of fair market lease rates for the corresponding leases, measured over a period equal to the terms of the respective leases. We allocate a portion of the purchase price to acquired in place leases and tenant relationships based upon market estimates to lease up the property based on the leases in place at the time of purchase. We allocate this aggregate value between acquired in place lease values and tenant relationships based on our evaluation of the specific characteristics of each tenant’s lease. However, we have not separated the value of tenant relationships from the value of acquired in place leases because such value and related amortization expense is immaterial to the accompanying consolidated financial statements. In making these allocations, we consider factors such as estimated carrying costs during the expected lease up periods, including real estate taxes, insurance and other operating income and expenses and costs, such as leasing commissions, legal and other related expenses, to execute similar leases in current market conditions at the time a property was acquired by us. If the value of tenant relationships becomes material in the future, we may separately allocate those amounts and amortize the allocated amounts over the estimated life of the relationships. For transactions that qualify as business combinations, we allocate the excess, if any, of the consideration over the fair value of the assets acquired to goodwill.
We amortize capitalized above market lease values (included in acquired real estate leases, net in our consolidated balance sheets) and below market lease values (presented as assumed real estate lease obligations, net in our consolidated balance sheets) as a reduction or increase, respectively, to rental income over the terms of the associated leases. Such amortization resulted in net decreases to rental income of $975, $2,288 and $5,440 during the years ended December 31, 2022, 2021 and 2020, respectively. We amortize the value of acquired in place leases (included in acquired real estate leases, net in our consolidated balance sheets), exclusive of the value of above market and below market acquired in place leases, over the terms of the associated leases. Such amortization, which is included in depreciation and amortization expense, amounted to $118,728, $142,538 and $161,752 during the years ended December 31, 2022, 2021 and 2020, respectively. If a lease is terminated prior to its stated expiration, we write off the unamortized amounts relating to that lease.
We regularly evaluate whether events or changes in circumstances have occurred that could indicate an impairment in the value of long lived assets. Impairment indicators may include declining tenant occupancy, lack of progress releasing vacant space, tenant bankruptcies, low long term prospects for improvement in property performance, weak or declining tenant profitability, cash flow or liquidity, our decision to dispose of an asset before the end of its estimated useful life and legislative, market or industry changes that could permanently reduce the value of a property. If there is an indication that the carrying value of an asset is not recoverable, we estimate the projected undiscounted cash flows to determine if an impairment loss should be recognized. The future net undiscounted cash flows are subjective and are based in part on assumptions regarding hold periods, market rents and terminal capitalization rates. We determine the amount of any impairment loss by comparing the historical carrying value to estimated fair value. We estimate fair value through an evaluation of recent financial performance and projected discounted cash flows using standard industry valuation techniques. In addition to consideration of impairment upon the events or changes in circumstances described above, we regularly evaluate the remaining useful lives of our long lived assets. If we change our estimate of the remaining useful lives, we allocate the carrying value of the affected assets over their revised remaining useful lives.
Cash and Cash Equivalents Cash and Cash Equivalents. We consider highly liquid investments with original maturities of three months or less at the date of purchase to be cash equivalents.
Restricted Cash Restricted Cash. Restricted cash consists of amounts escrowed for future real estate taxes, insurance, leasing costs, capital expenditures and debt service, as required by certain of our mortgage debts.
Deferred Leasing Costs Deferred Leasing Costs. Deferred leasing costs include brokerage costs and inducements associated with our entering leases. We amortize deferred leasing costs, which are included in depreciation and amortization expense, and inducements, which are included as a reduction to rental income, on a straight line basis over the terms of the respective leases. Legal costs associated with the execution of our leases are expensed as incurred and included in general and administrative expenses in our consolidated statements of comprehensive income (loss).
Debt Issuance Costs Debt Issuance Costs. Costs related to the issuance or assumption of debt are capitalized and amortized to interest expense over the terms of the respective loans. Debt issuance costs, net of accumulated amortization, for our revolving credit facility are included in other assets in our consolidated balance sheets. As of December 31, 2022 and 2021, debt issuance costs for our revolving credit facility were $4,593 and $4,125, respectively, and accumulated amortization of debt issuance costs for our revolving credit facility were $4,072 and $3,079, respectively. Debt issuance costs, net of accumulated amortization, for our senior unsecured notes and mortgage notes payable are presented as a direct deduction from the associated debt liability in our consolidated balance sheets.
Equity Method Investments Equity Method Investments. We have noncontrolling ownership interests of 51% and 50% in two unconsolidated joint ventures that own three properties. The properties owned by these joint ventures are encumbered by an aggregate of $82,000 of mortgage indebtedness. We do not control the activities that are most significant to these joint ventures and, as a result, we account for our investments in these joint ventures under the equity method of accounting. See Note 4 for more information regarding our unconsolidated joint ventures.We periodically evaluate our equity method investments for possible indicators of other than temporary impairment whenever events or changes in circumstances indicate the carrying amount of the investment might not be recoverable. These indicators may include the length of time and the extent to which the market value of our investment is below our carrying value, the financial condition of our investees, our intent and ability to be a long term holder of the investment and other considerations. If the decline in fair value is judged to be other than temporary, we record an impairment charge to adjust the basis of the investment to its estimated fair value.
Revenue Recognition
Revenue Recognition. We are a lessor of commercial office properties. Our leases provide our tenants with the contractual right to use and economically benefit from all of the physical space specified in the leases; therefore, we have determined to evaluate our leases as lease arrangements.
Our leases provide for base rent payments and in addition may include variable payments. Rental income from operating leases, including any payments derived by index or market-based indices, is recognized on a straight line basis over the lease term when we have determined that the collectability of substantially all of the lease payments is probable. Some of our leases have options to extend or terminate the lease exercisable at the option of our tenants, which are considered when determining the lease term. Allowances for bad debts are recognized as a direct reduction of rental income.
Certain of our leases contain non-lease components, such as property level operating expenses and capital expenditures reimbursed by our tenants as well as other required lease payments. We have made the policy election to not separate the lease and non-lease components because (i) the lease components are operating leases and (ii) the timing and pattern of recognition of the non-lease components are the same as those of the lease components. We apply Accounting Standards Codification 842,
Leases, to the combined component. Income derived by our leases is recorded in rental income in our consolidated statements of comprehensive income (loss).
Certain tenants are obligated to pay directly their obligations under their leases for insurance, real estate taxes and certain other expenses. These obligations, which have been assumed by the tenants under the terms of their respective leases, are not reflected in our consolidated financial statements. To the extent any tenant responsible for any such obligations under the applicable lease defaults on such lease or if it is deemed probable that the tenant will fail to pay for such obligations, we would record a liability for such obligations. See Note 5 for more information regarding our leases.
Income Taxes Income Taxes. We have elected to be taxed as a REIT under the United States Internal Revenue Code of 1986, as amended, and, accordingly, we generally will not be subject to federal income taxes provided we distribute our taxable income and meet certain other requirements to qualify for taxation as a REIT. We are, however, subject to certain state and local taxes.
Cumulative Other Comprehensive Income (Loss) Cumulative Other Comprehensive Income (Loss). Cumulative other comprehensive income (loss) represents our share of the cumulative comprehensive income and losses of our former equity method investees.
Per Common Share Amounts Per Common Share Amounts. We calculate basic earnings per common share using the two class method. We calculate diluted earnings per share using the more dilutive of the two class method or the treasury stock method. Unvested share awards and other potentially dilutive common shares, together with the related impact on earnings, are considered when calculating diluted earnings per share.
Use of Estimates Use of Estimates. Preparation of these financial statements in conformity with GAAP requires us to make estimates and assumptions that may affect the amounts reported in these consolidated financial statements and related notes. The actual results could differ from these estimates. Significant estimates in the consolidated financial statements include purchase price allocations, useful lives of fixed assets and assessment of impairment of real estate and the related intangibles.
Segment Reporting Segment Reporting. We operate in one business segment: direct ownership of real estate properties.
v3.22.4
Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2022
Accounting Policies [Abstract]  
Schedule of Real Estate Properties As of December 31, 2022 and 2021, our acquired real estate leases and assumed real estate lease obligations, excluding properties classified as held for sale, were as follows:
 December 31,
20222021
Acquired real estate leases:
Capitalized above market lease values$15,792 $29,925 
Less: accumulated amortization(9,672)(17,945)
Capitalized above market lease values, net6,120 11,980 
Lease origination value728,773 885,250 
Less: accumulated amortization(365,560)(391,601)
Lease origination value, net363,213 493,649 
Acquired real estate leases, net$369,333 $505,629 
Assumed real estate lease obligations:
Capitalized below market lease values$27,033 $29,488 
Less: accumulated amortization(12,876)(12,454)
Assumed real estate lease obligations, net$14,157 $17,034 
v3.22.4
Per Common Share Amounts (Tables)
12 Months Ended
Dec. 31, 2022
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted
The calculation of basic and diluted earnings per share is as follows (amounts in thousands, except per share amounts):
Year Ended December 31,
202220212020
Numerators:
Net income (loss)$(6,109)$(8,180)$6,678 
Income attributable to unvested participating securities(427)— — 
Net income (loss) used in calculating earnings per share$(6,536)$(8,180)$6,678 
Denominators:
Weighted average common shares outstanding - basic and diluted (1)
48,278 48,195 48,124 
Net income (loss) per common share - basic and diluted$(0.14)$(0.17)$0.14 
(1)For the years ended December 31, 2022, 2021 and 2020, there were no dilutive common shares. In addition, for the years ended December 31, 2021 and 2020, 34 and 14 unvested common shares, respectively, were not included in the calculation of diluted earnings per share because to do so would have been antidilutive.
v3.22.4
Real Estate Properties (Tables)
12 Months Ended
Dec. 31, 2022
Real Estate [Abstract]  
Schedule of Business Acquisitions, by Acquisition We allocated the purchase prices of these acquisitions based on the relative estimated fair values of the acquired assets and assumed liabilities as follows:
Acquisition DateLocationNumber of PropertiesRentable Square FeetPurchase PriceLandBuildings and ImprovementsAcquired Real Estate LeasesAssumed Real Estate Lease Obligations
June 2021
Chicago, IL (1)
1531,000 $368,331 $42,935 $258,348 $76,136 $(9,088)
June 2021Atlanta, GA1346,000 180,602 13,040 135,459 32,103 — 
August 2021Boston, MA149,000 27,545 16,103 10,217 1,225 — 
3926,000$576,478 $72,078 $404,024 $109,464 $(9,088)
(1)Purchase price includes an adjustment of $13,031 to record an estimated real estate tax liability as of the acquisition date.
We allocated the purchase prices of these acquisitions based on the relative estimated fair values of the acquired assets as follows:
Acquisition DateLocationNumber of PropertiesRentable Square FeetPurchase PriceLandBuildings and ImprovementsAcquired Real Estate Leases
February 2020Boston, MA113,000 $11,864 $2,618 $9,246 $— 
December 2020Fort Mill, SC1150,000 35,351 5,031 22,526 7,794 
2163,000 $47,215 $7,649 $31,772 $7,794 
Schedule of Disposal Groups
Date of SaleNumber of Properties LocationRentable Square Feet
Gross
 Sales Price (1)
Gain (Loss) on Sale of Real EstateLoss on Impairment of Real Estate
January 20221
Rockville, MD (2)
129,000 $6,750 $(72)$— 
February 20222
Chesapeake, VA (2)
172,000 18,945 2,296 — 
March 20221
Milwaukee, WI (2)
29,000 3,775 (75)— 
May 20221Holtsville, NY264,000 28,500 1,900 — 
June 20221Fairfax, VA184,000 19,750 (13,537)— 
July 20221Houston, TX206,000 9,800 (135)15,278 
August 20223Birmingham, AL448,000 16,050 (265)3,709 
August 20221Erlanger, KY86,000 2,600 135 2,184 
September 20222Chesapeake, VA214,000 24,000 62 649 
September 20222Everett, WA112,000 31,500 11,959 — 
September 20221Salem, OR233,000 34,250 5,369 — 
November 20221
Kapolei, HI (3)
109,000 4,000 2,504 — 
November 20221Englewood, CO140,000 11,100 860 — 
182,326,000 $211,020 $11,001 $21,820 
(1)Gross sales price is the gross contract price, excluding closing costs.
(2)Properties were classified as held for sale as of December 31, 2021.
(3)Property is a leasable land parcel.
Date of SaleNumber of Properties LocationRentable Square Feet
Gross
 Sales Price (1)
Gain (Loss) on Sale of Real EstateLoss on Impairment of Real Estate
January 2021
Kansas City, MO (2) (3)
10,000 $845 $(63)$— 
January 20211
Richmond, VA (2)
311,000 130,000 54,181 — 
April 20211Huntsville, AL1,371,000 39,000 — 5,383 
July 20211Fresno, CA532,000 6,000 — 33,902 
July 20211Liverpool, NY38,000 650 31 — 
August 20211Memphis, TN205,000 15,270 287 — 
September 20211Stoneham, MA98,000 6,650 (282)5,911 
October 2021
Sterling, VA (4)
— 28,500 24,200 — 
62,565,000$226,915 $78,354 $45,196 
(1)Gross sales price is the gross contract price, excluding closing costs.
(2)Properties were classified as held for sale as of December 31, 2020.
(3)Consists of a warehouse facility.
(4)Consists of two vacant land parcels.
Date of SaleNumber of Properties LocationRentable Square Feet
Gross
 Sales Price (1)
Gain (Loss) on Sale of Real EstateLoss on Impairment of Real Estate
January 20202Stafford, VA65,000 $14,063 $4,771 $— 
January 20201Windsor, CT97,000 7,000 314 — 
February 20201Lincolnshire, IL223,000 12,000 1,179 — 
March 20201Trenton, NJ267,000 30,100 (179)— 
March 20201Fairfax, VA83,000 22,200 4,754 — 
October 20204Fairfax, VA171,000 25,100 16 2,954 
10906,000 $110,463 $10,855 $2,954 
(1)Gross sales price is the gross contract price, excluding closing costs.
Schedule of Joint Ventures As of December 31, 2022 and 2021, our investments in unconsolidated joint ventures consisted of the following:
OPI OwnershipOPI Carrying Value of Investments at December 31, Number of PropertiesLocationRentable Square Feet
Joint Venture20222021
Prosperity Metro Plaza51%$19,237 $20,672 2Fairfax, VA329,000
1750 H Street, NW50%15,892 14,166 1Washington, D.C.115,000
Total $35,129 $34,838 3444,000
The following table provides a summary of the mortgage debt of our two unconsolidated joint ventures:
Joint Venture
Interest Rate (1)
Maturity Date
Principal Balance at December 31, 2022 and 2021 (2)
Prosperity Metro Plaza4.09%12/1/2029$50,000 
1750 H Street, NW3.69%8/1/202432,000 
Weighted Average/Total3.93%$82,000 
(1)Includes the effect of mark to market purchase accounting.
(2)Reflects the entire balance of the debt secured by the properties and is not adjusted to reflect the interests in the joint ventures we do not own. None of the debt is recourse to us.
v3.22.4
Leases (Tables)
12 Months Ended
Dec. 31, 2022
Leases [Abstract]  
Schedule of Future Contractual Lease Payments to be Received
The following operating lease maturity analysis presents the future contractual lease payments to be received by us through 2053 as of December 31, 2022:
YearAmount
2023$393,318 
2024358,254 
2025313,267 
2026279,820 
2027248,976 
Thereafter1,393,682 
Total$2,987,317 
v3.22.4
Indebtedness (Tables)
12 Months Ended
Dec. 31, 2022
Debt Disclosure [Abstract]  
Schedule of Long-Term Debt Instruments
At December 31, 2022 and 2021, our outstanding indebtedness consisted of the following:
 December 31,
20222021
Revolving credit facility, due in 2023$195,000 $— 
Senior unsecured notes, 4.00% interest rate, due in 2022 (1)
— 300,000 
Senior unsecured notes, 4.25% interest rate, due in 2024
350,000 350,000 
Senior unsecured notes, 4.50% interest rate, due in 2025
650,000 650,000 
Senior unsecured notes, 2.650% interest rate, due in 2026
300,000 300,000 
Senior unsecured notes, 2.400% interest rate, due in 2027
350,000 350,000 
Senior unsecured notes, 3.450% interest rate, due in 2031
400,000 400,000 
Senior unsecured notes, 6.375% interest rate, due in 2050
162,000 162,000 
Mortgage note payable, 4.220% interest rate, due in 2022 (2)
— 25,055 
Mortgage note payable, 3.700% interest rate, due in 2023
50,000 50,000 
Mortgage note payable, 4.800% interest rate, due in 2023 (3)
— 23,246 
2,457,000 2,610,301 
Unamortized debt premiums, discounts and issuance costs(24,208)(32,351)
$2,432,792 $2,577,950 
(1)These senior notes were redeemed in June 2022.
(2)This mortgage note was prepaid, at par plus accrued interest, in April 2022.
(3)This mortgage note was prepaid, at a discounted amount of $22,176 plus accrued interest, in October 2022.
Schedule of Required Principal Payments
The required principal payments due during the next five years and thereafter under all our outstanding consolidated debt as of December 31, 2022 were as follows:
YearPrincipal Payment
2023$245,000 
2024350,000 
2025650,000 
2026300,000 
2027350,000 
Thereafter562,000 
Total$2,457,000 
(1)
(1)Total consolidated debt outstanding as of December 31, 2022, net of unamortized premiums, discounts and issuance costs totaling $24,208, was $2,432,792.
v3.22.4
Fair Value of Assets and Liabilities (Tables)
12 Months Ended
Dec. 31, 2022
Fair Value Disclosures [Abstract]  
Schedule of Fair Value and Carrying Value of Financial Instruments At December 31, 2022 and 2021, the fair values of our financial instruments approximated their carrying values in our consolidated financial statements, due to their short term nature or floating interest rates, except as follows:
 As of December 31, 2022As of December 31, 2021
Financial Instrument
Carrying Value (1)
Fair Value
Carrying Value (1)
Fair Value
Senior unsecured notes, 4.00% interest rate, due in 2022 (2)
$— $— $299,500 $304,148 
Senior unsecured notes, 4.25% interest rate, due in 2024
346,863 331,601 344,581 365,449 
Senior unsecured notes, 4.50% interest rate, due in 2025
642,818 589,388 639,370 687,749 
Senior unsecured notes, 2.650% interest rate, due in 2026
297,839 232,770 297,213 298,502 
Senior unsecured notes, 2.400% interest rate, due in 2027
347,466 256,606 346,845 339,764 
Senior unsecured notes, 3.450% interest rate, due in 2031
396,178 268,004 395,744 388,458 
Senior unsecured notes, 6.375% interest rate, due in 2050
156,711 113,075 156,519 177,098 
Mortgage notes payable (3)
49,917 49,099 98,178 100,294 
Total $2,237,792 $1,840,543 $2,577,950 $2,661,462 
(1)Includes unamortized debt premiums, discounts and issuance costs totaling $24,208 and $32,351 as of December 31, 2022 and 2021, respectively.
(2)These senior notes were redeemed in June 2022.
(3)Balance as of December 31, 2021 includes a mortgage note secured by one property with an outstanding principal amount of $25,055 that was prepaid, at par plus accrued interest, in April 2022 and a mortgage note secured by one property with an outstanding principal balance of $23,246 that was prepaid, at a discounted amount of $22,176 plus accrued interest, in October 2022.
v3.22.4
Shareholders' Equity (Tables)
12 Months Ended
Dec. 31, 2022
Equity [Abstract]  
Summary of Shares Granted And Vested Under The Terms of The Entity's 2009 Plan
A summary of shares awarded, forfeited, vested and unvested under the terms of the 2009 Plan for the years ended December 31, 2022, 2021 and 2020, is as follows:
202220212020
Number of SharesWeighted Average Grant Date Fair ValueNumber of SharesWeighted Average Grant Date Fair ValueNumber of SharesWeighted Average Grant Date Fair Value
Unvested at beginning of year182,224 $26.23 157,521 $29.26 106,680 $40.16 
Awarded172,700 $17.74 145,800 $26.28 136,600 $23.77 
Forfeited (1,900)$25.97 (700)$25.97 (586)$43.75 
Vested(121,723)$23.24 (120,397)$30.24 (85,173)$34.02 
Unvested at end of year231,301 $21.47 182,224 $26.23 157,521 $29.26 
Schedule of Dividends
During the years ended December 31, 2022, 2021 and 2020, we paid distributions on our common shares as follows:
Annual Per Share DistributionTotal DistributionsCharacterization of Distributions
Year Return of CapitalOrdinary IncomeQualified Dividend
2022$2.20 $106,630 62.68%37.32%—%
2021$2.20 $106,368 —%100.00%—%
2020$2.20 $106,121 —%100.00%—%
v3.22.4
Organization (Details)
12 Months Ended
Dec. 31, 2022
ft²
joint_venture
property
Dec. 31, 2021
ft²
Dec. 31, 2020
ft²
Real Estate Properties [Line Items]      
Number of properties (in properties) | property 160    
Rentable area of properties (in square feet)   926,000 163,000
Number of joint ventures | joint_venture 2    
Unconsolidated Joint Ventures      
Real Estate Properties [Line Items]      
Number of properties (in properties) | property 3    
Rentable area of properties (in square feet) 444,000    
Number of joint ventures | joint_venture 2    
Joint Venture Property 1      
Real Estate Properties [Line Items]      
Percentage of ownership interest 51.00%    
Joint Venture Property 2      
Real Estate Properties [Line Items]      
Percentage of ownership interest 50.00%    
Continuing Operations      
Real Estate Properties [Line Items]      
Rentable area of properties (in square feet) 20,969,000    
v3.22.4
Summary of Significant Accounting Policies - Real Estate Properties, Narrative (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Real Estate [Line Items]      
Net decreases to rental income from amortization of capitalized above market and below market leases $ 975 $ 2,288 $ 5,440
Amortization of the value of leases 119,703 144,826 167,192
Projected future amortization of net intangible lease assets and liabilities, excluding those classified as discontinued operations      
2023 90,999    
2024 73,905    
2025 53,792    
2026 39,983    
2027 31,313    
Thereafter 65,184    
Original Value Lease      
Real Estate [Line Items]      
Amortization of the value of leases $ 118,728 $ 142,538 $ 161,752
Minimum | Buildings and Improvements      
Real Estate [Line Items]      
Property, plant and equipment, useful life 7 years    
Maximum | Buildings and Improvements      
Real Estate [Line Items]      
Property, plant and equipment, useful life 40 years    
Weighted Average      
Real Estate [Line Items]      
Below market, acquired lease amortization period 10 years 10 months 24 days    
Weighted Average | Above Market Lease      
Real Estate [Line Items]      
Acquired lease amortization period 3 years 9 months 18 days    
Weighted Average | Original Value Lease      
Real Estate [Line Items]      
Acquired lease amortization period 6 years 4 months 24 days    
v3.22.4
Summary of Significant Accounting Policies - Schedule of Real Estate Assets and Obligations (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Real Estate [Line Items]    
Acquired real estate leases, net $ 369,333 $ 505,629
Capitalized below market lease values 27,033 29,488
Less: accumulated amortization (12,876) (12,454)
Assumed real estate lease obligations, net 14,157 17,034
Above Market Lease    
Real Estate [Line Items]    
Real estate leases 15,792 29,925
Less: accumulated amortization (9,672) (17,945)
Acquired real estate leases, net 6,120 11,980
Original Value Lease    
Real Estate [Line Items]    
Real estate leases 728,773 885,250
Less: accumulated amortization (365,560) (391,601)
Acquired real estate leases, net $ 363,213 $ 493,649
v3.22.4
Summary of Significant Accounting Policies - Deferred Leasing and Debt Issuance Costs (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Debt Instrument [Line Items]      
Amortization of deferred leasing costs $ 6,869 $ 6,691 $ 5,985
Deferred sales inducement cost, amortization expense 1,124 1,187 $ 902
Deferred leasing costs, gross 94,680 74,469  
Accumulated amortization of deferred leasing costs 21,582 20,586  
Future amortization of deferred leasing costs, excluding those classified as discontinued operations      
2023 9,938    
2024 8,837    
2025 7,838    
2026 7,260    
2027 6,424    
Thereafter 32,801    
Deferred financing fees, net 13,589 16,120  
Future amortization of deferred financing fees      
2023 2,676    
2024 2,155    
2025 1,669    
2026 1,335    
2027 595    
Thereafter 5,680    
Unsecured Revolving Credit Facility      
Future amortization of deferred leasing costs, excluding those classified as discontinued operations      
Deferred financing fees, gross 4,593 4,125  
Accumulated amortization of deferred financing fees $ 4,072 $ 3,079  
v3.22.4
Summary of Significant Accounting Policies - Additional Information (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2022
USD ($)
property
joint_venture
segment
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Jun. 05, 2015
USD ($)
shares
Schedule of Equity Method Investments [Line Items]        
Number of joint ventures | joint_venture 2      
Number of properties (in properties) | property 160      
Unamortized discount (premium), net $ 14,145      
Number of business segments | segment 1      
Joint Venture Property 1        
Schedule of Equity Method Investments [Line Items]        
Percentage of ownership interest 51.00%      
Joint Venture Property 2        
Schedule of Equity Method Investments [Line Items]        
Percentage of ownership interest 50.00%      
RMR Inc        
Schedule of Equity Method Investments [Line Items]        
Equity securities, FV-NI (in shares) | shares       1,541,201
Equity securities, FV-NI, cost       $ 17,462
Unconsolidated Joint Ventures        
Schedule of Equity Method Investments [Line Items]        
Number of joint ventures | joint_venture 2      
Number of properties (in properties) | property 3      
Unconsolidated Joint Ventures | Joint Venture Property 1        
Schedule of Equity Method Investments [Line Items]        
Percentage of ownership interest 51.00%      
Unconsolidated Joint Ventures | Joint Venture Property 2        
Schedule of Equity Method Investments [Line Items]        
Percentage of ownership interest 50.00%      
Unconsolidated Joint Ventures        
Schedule of Equity Method Investments [Line Items]        
Number of joint ventures | joint_venture 2      
Number of properties (in properties) | property 3      
Unconsolidated Joint Ventures | Mortgage Note Payable        
Schedule of Equity Method Investments [Line Items]        
Principal balance $ 82,000 $ 82,000    
RMR Inc        
Schedule of Equity Method Investments [Line Items]        
Equity securities, FV-NI       $ 39,833
Amortization of liability 1,087 $ 1,087 $ 1,087  
Amortization of liability, year one 1,087      
Amortization of liability, year two 1,087      
Amortization of liability, year three 1,087      
Amortization of liability, year four 1,087      
Amortization of liability, year five 1,087      
Amortization of liability, thereafter $ 8,710      
v3.22.4
Per Common Share Amounts - Income (Loss) Per Common Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Numerators:      
Net income (loss) $ (6,109) $ (8,180) $ 6,678
Income attributable to unvested participating securities (427) 0 0
Net income (loss) used in calculating earnings per share $ (6,536) $ (8,180) $ 6,678
Denominators:      
Weighted average common shares for basic earnings per share (in shares) 48,278 48,195 48,124
Weighted average common shares outstanding, diluted (in shares) 48,278 48,195 48,124
Net income (loss) per common share - basic (in dollars per share) $ (0.14) $ (0.17) $ 0.14
Net income (loss) per common share - diluted (in dollars per share) $ (0.14) $ (0.17) $ 0.14
Antidilutive securities (in shares)   34 14
v3.22.4
Real Estate Properties - Real Estate Properties Narrative (Details)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2021
USD ($)
property
Dec. 31, 2022
USD ($)
ft²
joint_venture
property
lease
Dec. 31, 2021
USD ($)
ft²
property
parcel_of_land
Dec. 31, 2020
USD ($)
ft²
property
Real Estate Properties [Line Items]        
Number of properties (in properties) | property   160    
Area of properties (in square feet) | ft²     926,000 163,000
Real estate aggregate undepreciated carrying value   $ 3,936,074 $ 3,911,086  
Number of joint ventures | joint_venture   2    
Number of leases entered | lease   75    
Rentable square feet (in sqft) | ft²   2,562,000    
Weighted average lease term   9 years 3 months 18 days    
Expenditures committed on leases   $ 173,419    
Operating leases committed expenditures on leases executed in period committed but unspent tenant related obligations   156,693    
Loss on impairment of real estate   $ 21,820 $ 62,420 $ 2,954
Unconsolidated Joint Ventures        
Real Estate Properties [Line Items]        
Number of properties (in properties) | property   3    
Area of properties (in square feet) | ft²   444,000    
Number of joint ventures | joint_venture   2    
Unconsolidated Joint Ventures | Mortgage Note Payable        
Real Estate Properties [Line Items]        
Interest rate (as a percent)   3.93%    
Joint Venture Property 1        
Real Estate Properties [Line Items]        
Percentage of ownership interest   51.00%    
Joint Venture Property 2        
Real Estate Properties [Line Items]        
Percentage of ownership interest   50.00%    
Disposal Group, Disposed of by Sale        
Real Estate Properties [Line Items]        
Number of properties (in properties) | property   18 6 10
Area of properties (in square feet) | ft²   2,326,000 2,565,000 906,000
Gross Sales Price, Excluding Closing Costs   $ 211,020 $ 226,915 $ 110,463
Rentable Square Feet | ft²     2,565,000  
Loss on impairment of real estate   $ 21,820 $ 45,196 $ 2,954
Number of real estate properties sold (in properties) | property     6 10
Disposal Group, Disposed of by Sale | Mortgage notes payable, 5.9% interest rate, due in 2021 | Mortgage Note Payable        
Real Estate Properties [Line Items]        
Extinguishment of debt, amount       $ 13,095
Interest rate (as a percent)       5.90%
Disposal Group, Disposed of by Sale | Sterling, VA        
Real Estate Properties [Line Items]        
Number of properties (in properties) | property     0  
Area of properties (in square feet) | ft²     0  
Gross Sales Price, Excluding Closing Costs     $ 28,500  
Number of land parcels | parcel_of_land     2  
Loss on impairment of real estate     $ 0  
Disposal Group, Disposed of by Sale | Brookhaven, GA        
Real Estate Properties [Line Items]        
Number of properties (in properties) | property 3      
Gross Sales Price, Excluding Closing Costs $ 10,658      
Loss on impairment of real estate     $ 425  
Disposal Group, Held-for-sale, Not Discontinued Operations        
Real Estate Properties [Line Items]        
Number of properties (in properties) | property     2  
Loss on impairment of real estate     $ 6,991  
Continuing Operations        
Real Estate Properties [Line Items]        
Area of properties (in square feet) | ft²   20,969,000    
Real estate aggregate undepreciated carrying value   $ 3,938,658    
Continuing Operations | Disposal Group, Held-for-sale, Not Discontinued Operations        
Real Estate Properties [Line Items]        
Carrying value   $ 2,584    
v3.22.4
Real Estate Properties - Acquisition Activities (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2021
USD ($)
ft²
property
Dec. 31, 2020
USD ($)
ft²
property
Business Acquisition [Line Items]    
Number of properties acquired | property 3 2
Rentable square feet (in square feet) | ft² 926,000 163,000
Asset acquisition, consideration transferred $ 576,478 $ 47,215
Purchase price adjustments 1,761  
Assumed Real Estate Lease Obligations (9,088)  
Acquisition related costs 1,264 590
Adjustment for estimated tax liability 13,031  
Land    
Business Acquisition [Line Items]    
Asset acquisition, consideration transferred 72,078 7,649
Buildings and Improvements    
Business Acquisition [Line Items]    
Asset acquisition, consideration transferred 404,024 31,772
Acquired Real Estate Leases    
Business Acquisition [Line Items]    
Asset acquisition, consideration transferred $ 109,464 $ 7,794
Chicago, IL    
Business Acquisition [Line Items]    
Number of properties acquired | property 1  
Rentable square feet (in square feet) | ft² 531,000  
Asset acquisition, consideration transferred $ 368,331  
Assumed Real Estate Lease Obligations (9,088)  
Chicago, IL | Land    
Business Acquisition [Line Items]    
Asset acquisition, consideration transferred 42,935  
Chicago, IL | Buildings and Improvements    
Business Acquisition [Line Items]    
Asset acquisition, consideration transferred 258,348  
Chicago, IL | Acquired Real Estate Leases    
Business Acquisition [Line Items]    
Asset acquisition, consideration transferred $ 76,136  
Atlanta, GA    
Business Acquisition [Line Items]    
Number of properties acquired | property 1  
Rentable square feet (in square feet) | ft² 346,000  
Asset acquisition, consideration transferred $ 180,602  
Assumed Real Estate Lease Obligations 0  
Atlanta, GA | Land    
Business Acquisition [Line Items]    
Asset acquisition, consideration transferred 13,040  
Atlanta, GA | Buildings and Improvements    
Business Acquisition [Line Items]    
Asset acquisition, consideration transferred 135,459  
Atlanta, GA | Acquired Real Estate Leases    
Business Acquisition [Line Items]    
Asset acquisition, consideration transferred $ 32,103  
Boston, MA    
Business Acquisition [Line Items]    
Number of properties acquired | property 1 1
Rentable square feet (in square feet) | ft² 49,000 13,000
Asset acquisition, consideration transferred $ 27,545 $ 11,864
Assumed Real Estate Lease Obligations 0  
Boston, MA | Land    
Business Acquisition [Line Items]    
Asset acquisition, consideration transferred 16,103 2,618
Boston, MA | Buildings and Improvements    
Business Acquisition [Line Items]    
Asset acquisition, consideration transferred 10,217 9,246
Boston, MA | Acquired Real Estate Leases    
Business Acquisition [Line Items]    
Asset acquisition, consideration transferred $ 1,225 $ 0
Fort Mill, SC    
Business Acquisition [Line Items]    
Number of properties acquired | property   1
Rentable square feet (in square feet) | ft²   150,000
Asset acquisition, consideration transferred   $ 35,351
Fort Mill, SC | Land    
Business Acquisition [Line Items]    
Asset acquisition, consideration transferred   5,031
Fort Mill, SC | Buildings and Improvements    
Business Acquisition [Line Items]    
Asset acquisition, consideration transferred   22,526
Fort Mill, SC | Acquired Real Estate Leases    
Business Acquisition [Line Items]    
Asset acquisition, consideration transferred   $ 7,794
v3.22.4
Real Estate Properties - Disposition Activities (Details)
$ in Thousands
12 Months Ended
Feb. 14, 2023
USD ($)
ft²
property
Dec. 31, 2022
USD ($)
ft²
property
Dec. 31, 2021
USD ($)
ft²
property
parcel_of_land
Dec. 31, 2020
USD ($)
ft²
property
Real Estate Properties [Line Items]        
Number of properties (in properties) | property   160    
Rentable square feet (in square feet) | ft²     926,000 163,000
Gain (Loss) on Sale of Real Estate   $ 11,001 $ 78,354 $ 10,855
Loss on impairment of real estate   $ 21,820 $ 62,420 $ 2,954
Disposal Group, Disposed of by Sale        
Real Estate Properties [Line Items]        
Number of properties (in properties) | property   18 6 10
Rentable square feet (in square feet) | ft²   2,326,000 2,565,000 906,000
Gross Sales Price, Excluding Closing Costs   $ 211,020 $ 226,915 $ 110,463
Gain (Loss) on Sale of Real Estate   11,001 78,354 10,855
Loss on impairment of real estate   $ 21,820 $ 45,196 $ 2,954
Disposal Group, Disposed of by Sale | Subsequent Event        
Real Estate Properties [Line Items]        
Number of properties (in properties) | property 2      
Rentable square feet (in square feet) | ft² 207,000      
Gross Sales Price, Excluding Closing Costs $ 7,600      
Disposal Group, Held-for-sale, Not Discontinued Operations        
Real Estate Properties [Line Items]        
Number of properties (in properties) | property     2  
Loss on impairment of real estate     $ 6,991  
Rockville, MD | Disposal Group, Disposed of by Sale        
Real Estate Properties [Line Items]        
Number of properties (in properties) | property   1    
Rentable square feet (in square feet) | ft²   129,000    
Gross Sales Price, Excluding Closing Costs   $ 6,750    
Gain (Loss) on Sale of Real Estate   $ (72)    
Chesapeake, VA | Disposal Group, Disposed of by Sale        
Real Estate Properties [Line Items]        
Number of properties (in properties) | property   2    
Rentable square feet (in square feet) | ft²   172,000    
Gross Sales Price, Excluding Closing Costs   $ 18,945    
Gain (Loss) on Sale of Real Estate   $ 2,296    
Milwaukee, WI | Disposal Group, Disposed of by Sale        
Real Estate Properties [Line Items]        
Number of properties (in properties) | property   1    
Rentable square feet (in square feet) | ft²   29,000    
Gross Sales Price, Excluding Closing Costs   $ 3,775    
Gain (Loss) on Sale of Real Estate   $ (75)    
Holtsville, NY | Disposal Group, Disposed of by Sale        
Real Estate Properties [Line Items]        
Number of properties (in properties) | property   1    
Rentable square feet (in square feet) | ft²   264,000    
Gross Sales Price, Excluding Closing Costs   $ 28,500    
Gain (Loss) on Sale of Real Estate   $ 1,900    
Fairfax, VA | Disposal Group, Disposed of by Sale        
Real Estate Properties [Line Items]        
Number of properties (in properties) | property   1   1
Rentable square feet (in square feet) | ft²   184,000   83,000
Gross Sales Price, Excluding Closing Costs   $ 19,750   $ 22,200
Gain (Loss) on Sale of Real Estate   $ (13,537)   4,754
Loss on impairment of real estate       $ 0
Houston, TX | Disposal Group, Disposed of by Sale        
Real Estate Properties [Line Items]        
Number of properties (in properties) | property   1    
Rentable square feet (in square feet) | ft²   206,000    
Gross Sales Price, Excluding Closing Costs   $ 9,800    
Gain (Loss) on Sale of Real Estate   (135)    
Loss on impairment of real estate   $ 15,278    
Birmingham, AL | Disposal Group, Disposed of by Sale        
Real Estate Properties [Line Items]        
Number of properties (in properties) | property   3    
Rentable square feet (in square feet) | ft²   448,000    
Gross Sales Price, Excluding Closing Costs   $ 16,050    
Gain (Loss) on Sale of Real Estate   (265)    
Loss on impairment of real estate   $ 3,709    
Erlanger, KY | Disposal Group, Disposed of by Sale        
Real Estate Properties [Line Items]        
Number of properties (in properties) | property   1    
Rentable square feet (in square feet) | ft²   86,000    
Gross Sales Price, Excluding Closing Costs   $ 2,600    
Gain (Loss) on Sale of Real Estate   135    
Loss on impairment of real estate   $ 2,184    
Chesapeake, VA | Disposal Group, Disposed of by Sale        
Real Estate Properties [Line Items]        
Number of properties (in properties) | property   2    
Rentable square feet (in square feet) | ft²   214,000    
Gross Sales Price, Excluding Closing Costs   $ 24,000    
Gain (Loss) on Sale of Real Estate   62    
Loss on impairment of real estate   $ 649    
Everett, WA | Disposal Group, Disposed of by Sale        
Real Estate Properties [Line Items]        
Number of properties (in properties) | property   2    
Rentable square feet (in square feet) | ft²   112,000    
Gross Sales Price, Excluding Closing Costs   $ 31,500    
Gain (Loss) on Sale of Real Estate   $ 11,959    
Salem, OR | Disposal Group, Disposed of by Sale        
Real Estate Properties [Line Items]        
Number of properties (in properties) | property   1    
Rentable square feet (in square feet) | ft²   233,000    
Gross Sales Price, Excluding Closing Costs   $ 34,250    
Gain (Loss) on Sale of Real Estate   $ 5,369    
Kapolei, HI | Disposal Group, Disposed of by Sale        
Real Estate Properties [Line Items]        
Number of properties (in properties) | property   1    
Rentable square feet (in square feet) | ft²   109,000    
Gross Sales Price, Excluding Closing Costs   $ 4,000    
Gain (Loss) on Sale of Real Estate   $ 2,504    
Eaglewood, CO | Disposal Group, Disposed of by Sale        
Real Estate Properties [Line Items]        
Number of properties (in properties) | property   1    
Rentable square feet (in square feet) | ft²   140,000    
Gross Sales Price, Excluding Closing Costs   $ 11,100    
Gain (Loss) on Sale of Real Estate   $ 860    
Kansas City, MO | Disposal Group, Disposed of by Sale        
Real Estate Properties [Line Items]        
Number of properties (in properties) | property     0  
Rentable square feet (in square feet) | ft²     10,000  
Gross Sales Price, Excluding Closing Costs     $ 845  
Gain (Loss) on Sale of Real Estate     (63)  
Loss on impairment of real estate     $ 0  
Richmond, VA | Disposal Group, Disposed of by Sale        
Real Estate Properties [Line Items]        
Number of properties (in properties) | property   3 1  
Rentable square feet (in square feet) | ft²   89,000 311,000  
Gross Sales Price, Excluding Closing Costs   $ 5,350 $ 130,000  
Gain (Loss) on Sale of Real Estate     54,181  
Loss on impairment of real estate     $ 0  
Huntsville, AL | Disposal Group, Disposed of by Sale        
Real Estate Properties [Line Items]        
Number of properties (in properties) | property     1  
Rentable square feet (in square feet) | ft²     1,371,000  
Gross Sales Price, Excluding Closing Costs     $ 39,000  
Gain (Loss) on Sale of Real Estate     0  
Loss on impairment of real estate     $ 5,383  
Fresno, CA | Disposal Group, Disposed of by Sale        
Real Estate Properties [Line Items]        
Number of properties (in properties) | property     1  
Rentable square feet (in square feet) | ft²     532,000  
Gross Sales Price, Excluding Closing Costs     $ 6,000  
Gain (Loss) on Sale of Real Estate     0  
Loss on impairment of real estate     $ 33,902  
Liverpool, NY | Disposal Group, Disposed of by Sale        
Real Estate Properties [Line Items]        
Number of properties (in properties) | property     1  
Rentable square feet (in square feet) | ft²     38,000  
Gross Sales Price, Excluding Closing Costs     $ 650  
Gain (Loss) on Sale of Real Estate     31  
Loss on impairment of real estate     $ 0  
Memphis, TN | Disposal Group, Disposed of by Sale        
Real Estate Properties [Line Items]        
Number of properties (in properties) | property     1  
Rentable square feet (in square feet) | ft²     205,000  
Gross Sales Price, Excluding Closing Costs     $ 15,270  
Gain (Loss) on Sale of Real Estate     287  
Loss on impairment of real estate     $ 0  
Stoneham, MA | Disposal Group, Disposed of by Sale        
Real Estate Properties [Line Items]        
Number of properties (in properties) | property     1  
Rentable square feet (in square feet) | ft²     98,000  
Gross Sales Price, Excluding Closing Costs     $ 6,650  
Gain (Loss) on Sale of Real Estate     (282)  
Loss on impairment of real estate     $ 5,911  
Sterling, VA | Disposal Group, Disposed of by Sale        
Real Estate Properties [Line Items]        
Number of properties (in properties) | property     0  
Rentable square feet (in square feet) | ft²     0  
Gross Sales Price, Excluding Closing Costs     $ 28,500  
Gain (Loss) on Sale of Real Estate     24,200  
Loss on impairment of real estate     $ 0  
Number of land parcels | parcel_of_land     2  
Stafford, VA | Disposal Group, Disposed of by Sale        
Real Estate Properties [Line Items]        
Number of properties (in properties) | property       2
Rentable square feet (in square feet) | ft²       65,000
Gross Sales Price, Excluding Closing Costs       $ 14,063
Gain (Loss) on Sale of Real Estate       4,771
Loss on impairment of real estate       $ 0
Windsor, CT | Disposal Group, Disposed of by Sale        
Real Estate Properties [Line Items]        
Number of properties (in properties) | property       1
Rentable square feet (in square feet) | ft²       97,000
Gross Sales Price, Excluding Closing Costs       $ 7,000
Gain (Loss) on Sale of Real Estate       314
Loss on impairment of real estate       $ 0
Lincolnshire, IL | Disposal Group, Disposed of by Sale        
Real Estate Properties [Line Items]        
Number of properties (in properties) | property       1
Rentable square feet (in square feet) | ft²       223,000
Gross Sales Price, Excluding Closing Costs       $ 12,000
Gain (Loss) on Sale of Real Estate       1,179
Loss on impairment of real estate       $ 0
Trenton, NJ | Disposal Group, Disposed of by Sale        
Real Estate Properties [Line Items]        
Number of properties (in properties) | property       1
Rentable square feet (in square feet) | ft²       267,000
Gross Sales Price, Excluding Closing Costs       $ 30,100
Gain (Loss) on Sale of Real Estate       (179)
Loss on impairment of real estate       $ 0
Fairfax, VA | Disposal Group, Disposed of by Sale        
Real Estate Properties [Line Items]        
Number of properties (in properties) | property       4
Rentable square feet (in square feet) | ft²       171,000
Gross Sales Price, Excluding Closing Costs       $ 25,100
Gain (Loss) on Sale of Real Estate       16
Loss on impairment of real estate       $ 2,954
v3.22.4
Real Estate Properties - Unconsolidated Joint Ventures (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2022
USD ($)
ft²
joint_venture
property
Dec. 31, 2021
USD ($)
ft²
Dec. 31, 2020
ft²
Real Estate [Line Items]      
Number of joint ventures | joint_venture 2    
Number of properties (in properties) | property 160    
Rentable square feet (in square feet) | ft²   926,000 163,000
Unconsolidated Joint Ventures      
Real Estate [Line Items]      
Number of joint ventures | joint_venture 2    
Number of properties (in properties) | property 3    
OPI Carrying Value of Investments $ 35,129 $ 34,838  
Rentable square feet (in square feet) | ft² 444,000    
Equity method investment, difference between carrying amount and underlying equity $ 6,489    
Unconsolidated Joint Ventures | Mortgage Note Payable      
Real Estate [Line Items]      
Interest rate (as a percent) 3.93%    
Principal balance $ 82,000 82,000  
Unconsolidated Joint Ventures | Prosperity Metro Plaza      
Real Estate [Line Items]      
Number of properties (in properties) | property 2    
OPI Ownership 51.00%    
OPI Carrying Value of Investments $ 19,237 20,672  
Rentable square feet (in square feet) | ft² 329,000    
Unconsolidated Joint Ventures | Prosperity Metro Plaza | Mortgage Note Payable      
Real Estate [Line Items]      
Interest rate (as a percent) 4.09%    
Principal balance $ 50,000 50,000  
Unconsolidated Joint Ventures | 1750 H Street, NW      
Real Estate [Line Items]      
Number of properties (in properties) | property 1    
OPI Ownership 50.00%    
OPI Carrying Value of Investments $ 15,892 14,166  
Rentable square feet (in square feet) | ft² 115,000    
Unconsolidated Joint Ventures | 1750 H Street, NW | Mortgage Note Payable      
Real Estate [Line Items]      
Interest rate (as a percent) 3.69%    
Principal balance $ 32,000 $ 32,000  
v3.22.4
Leases - Narrative (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2022
USD ($)
tenant
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Lessee, Lease, Description [Line Items]      
Straight line rent adjustments $ 10,830 $ 15,368 $ 16,079
Straight line rent receivables 86,305 82,978  
Variable lease, income 83,103 85,107 75,851
Tenant reimbursement income $ 78,388 81,295 71,385
Lease expense   $ 79 $ 1,749
Lessor, Operating Lease, Payment to be Received      
Lessee, Lease, Description [Line Items]      
Number of government tenants with the right to terminate their leases | tenant 10    
Lessor, Operating Lease, Payment to be Received | Tenant with Exercisable Termination Rights | Tenant Concentration      
Lessee, Lease, Description [Line Items]      
Concentration risk, percentage 1.50%    
2023 1.30%    
2024 2.40%    
2025 5.60%    
2026 1.60%    
2027 1.60%    
2028 5.50%    
2029 2.10%    
2030 1.60%    
2031 0.30%    
2035 3.50%    
2037 0.40%    
2040 1.70%    
Lessor, Operating Lease, Payment to be Received | Fourteen Government Tenants | Tenant Concentration      
Lessee, Lease, Description [Line Items]      
Concentration risk, percentage 4.80%    
v3.22.4
Leases - Operating Lease Maturity (Details)
$ in Thousands
Dec. 31, 2022
USD ($)
Leases [Abstract]  
2023 $ 393,318
2024 358,254
2025 313,267
2026 279,820
2027 248,976
Thereafter 1,393,682
Total $ 2,987,317
v3.22.4
Business and Property Management Agreements with RMR (Details) - RMR LLC
$ in Thousands
12 Months Ended
Dec. 31, 2022
USD ($)
agreement
employee
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Related Party Transaction [Line Items]      
Number of employees | employee 0    
Number of agreements with RMR LLC to provide management services | agreement 2    
Net business management fees   $ 18,637 $ 17,358
Recognized amortization of the liability $ 603 603 603
Management fees as percentage of gross collected rents 3.00%    
Construction supervision fees as percentage of construction costs 5.00%    
Reimbursement amounts $ 24,371 24,766 24,919
Net Property Management and Construction Supervision Fees      
Related Party Transaction [Line Items]      
Net business management fees 17,376    
Transaction amount 25,756 21,103 20,774
Reimbursement amounts 484 484 484
Net Property Management and Construction Supervision Fees | Investment Building and Building Improvements      
Related Party Transaction [Line Items]      
Transaction amount 9,917 4,596 3,446
Net Property Management and Construction Supervision Fees | Other Operating Income (Expense)      
Related Party Transaction [Line Items]      
Transaction amount $ 15,839 $ 16,507 $ 17,328
Transition Services      
Related Party Transaction [Line Items]      
Duration of transition services 120 days    
Amended And Restate Business Management Agreement      
Related Party Transaction [Line Items]      
Percentage applied on average historical cost of real estate investment properties acquired 0.50%    
Base management fee payable as percentage of average historical cost of real estate investments 0.70%    
Percentage of average closing stock price on stock exchange 0.70%    
Management fee payable as percentage of average market capitalization exceeding specified amount 0.50%    
Percentage for limitation and adjustments of incentive management fee payable 12.00%    
Measurement period for incentive management fee 3 years    
Average closing price of our common shares, consecutive trading days 10 days    
Highest average closing price of our common shares, final consecutive trading days 30 days    
Percentage for limitation and adjustments of incentive management fee payable, minimum total return per share percentage change 5.00%    
Percentage of base business management fee payable in common shares 1.50%    
Amended And Restate Business Management Agreement | Up C Transaction      
Related Party Transaction [Line Items]      
Written notice for convenience 60 days    
Window of written notice after calendar year 60 days    
Window for written notice after change of control 12 months    
Remaining termination fee term 10 years    
Amended And Restate Business Management Agreement | Maximum      
Related Party Transaction [Line Items]      
Threshold amount of real estate investments $ 250,000    
Threshold amount of average market capitalization $ 250,000    
Percentage for limitation and adjustments of incentive management fee payable, total return per share percentage, reduction 5.00%    
Amended And Restate Business Management Agreement | Maximum | Up C Transaction      
Related Party Transaction [Line Items]      
Termination fee term 20 years    
Amended And Restate Business Management Agreement | Minimum      
Related Party Transaction [Line Items]      
Threshold amount of real estate investments $ 250,000    
Base management fee payable average market capitalization $ 250,000    
Percentage for limitation and adjustments of incentive management fee payable, total return per share percentage, reduction 2.00%    
Amended And Restate Business Management Agreement | Minimum | Up C Transaction      
Related Party Transaction [Line Items]      
Termination fee term 19 years    
v3.22.4
Related Person Transactions (Details)
$ in Thousands
1 Months Ended 12 Months Ended 22 Months Ended
Dec. 31, 2021
USD ($)
ft²
Jun. 30, 2021
USD ($)
ft²
renewal_option
Jun. 30, 2020
USD ($)
Dec. 31, 2022
USD ($)
agreement
Dec. 31, 2021
USD ($)
ft²
Dec. 31, 2020
USD ($)
ft²
Mar. 31, 2023
USD ($)
Related Party Transaction [Line Items]              
Rentable square feet (in square feet) | ft² 926,000       926,000 163,000  
Officers and Other Employees | Common Shares | 2009 Award Plan              
Related Party Transaction [Line Items]              
Award vesting period       4 years      
Share-based Payment Arrangement, Tranche 1 | Officers and Other Employees | Common Shares | 2009 Award Plan              
Related Party Transaction [Line Items]              
Award vesting rights, percentage       20.00%      
Share-based Payment Arrangement, Tranche 2 | Officers and Other Employees | Common Shares | 2009 Award Plan              
Related Party Transaction [Line Items]              
Award vesting rights, percentage       20.00%      
Share-based Payment Arrangement, Tranche 3 | Officers and Other Employees | Common Shares | 2009 Award Plan              
Related Party Transaction [Line Items]              
Award vesting rights, percentage       20.00%      
Share-based Compensation Award, Tranche 4 | Officers and Other Employees | Common Shares | 2009 Award Plan              
Related Party Transaction [Line Items]              
Award vesting rights, percentage       20.00%      
Share-based Compensation Award, Tranche 5 | Officers and Other Employees | Common Shares | 2009 Award Plan              
Related Party Transaction [Line Items]              
Award vesting rights, percentage       20.00%      
RMR LLC              
Related Party Transaction [Line Items]              
Number of agreements with RMR LLC to provide management services | agreement       2      
Rental income earned       $ 1,126 $ 1,138 $ 1,120  
Sonesta International Hotels Corporation              
Related Party Transaction [Line Items]              
Lease term   30 years          
Rentable square feet (in square feet) | ft²   230,000          
Percentage upon completion of redevelopment   54.00%          
Number of renewal options | renewal_option   2          
Renewal term   10 years          
Annual base rent   $ 6,436          
Deferred payment plan period   18 months          
Annual percentage increase   10.00%          
Annual base rent increase   5 years          
Sonesta International Hotels Corporation | Forecast              
Related Party Transaction [Line Items]              
Purchase price             $ 66,000
Affiliates Insurance Company              
Related Party Transaction [Line Items]              
Distribution of earnings from Affiliates Insurance Company $ 11   $ 287        
v3.22.4
Concentration (Details) - property
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Concentration Risk [Line Items]      
Number of properties (in properties) 160    
Number of states in which acquired properties located 30    
Annualized Rental Income, Excluding Properties Classified as Discontinued Operations | Tenant Concentration | U S Government, State Governments, and Other Governments      
Concentration Risk [Line Items]      
Concentration risk, percentage 28.50% 28.90% 35.30%
Annualized Rental Income, Excluding Properties Classified as Discontinued Operations | Tenant Concentration | U.S. Government      
Concentration Risk [Line Items]      
Concentration risk, percentage 19.70% 19.50% 25.20%
Annualized Rental Income, Excluding Properties Classified as Discontinued Operations | Geographic Concentration Risk | California      
Concentration Risk [Line Items]      
Concentration risk, percentage 11.70%    
Annualized Rental Income, Excluding Properties Classified as Discontinued Operations | Geographic Concentration Risk | Virginia      
Concentration Risk [Line Items]      
Concentration risk, percentage 11.00%    
Annualized Rental Income, Excluding Properties Classified as Discontinued Operations | Geographic Concentration Risk | Illinois      
Concentration Risk [Line Items]      
Concentration risk, percentage 10.80%    
Annualized Rental Income, Excluding Properties Classified as Discontinued Operations | Geographic Concentration Risk | Washington, D.C.      
Concentration Risk [Line Items]      
Concentration risk, percentage 10.50%    
Annualized Rental Income, Excluding Properties Classified as Discontinued Operations | Geographic Concentration Risk | Georgia      
Concentration Risk [Line Items]      
Concentration risk, percentage 9.00%    
v3.22.4
Indebtedness - Outstanding Debt (Details) - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
Oct. 31, 2022
Apr. 30, 2022
Dec. 31, 2021
Dec. 31, 2022
Jun. 30, 2022
Debt Instrument [Line Items]          
Borrowings outstanding     $ 2,610,301 $ 2,457,000  
Unamortized debt premiums, discounts and issuance costs     (32,351) (24,208)  
Total borrowings outstanding     2,577,950 $ 2,432,792  
Mortgage note payable, 4.220% interest rate, due in 2022          
Debt Instrument [Line Items]          
Borrowings outstanding     25,055    
Mortgage note payable, 4.800% interest rate, due in 2023          
Debt Instrument [Line Items]          
Interest rate (as a percent) 4.80%        
Senior Unsecured Notes | Senior unsecured notes, 4.00% interest rate, due in 2022          
Debt Instrument [Line Items]          
Interest rate (as a percent)       4.00% 4.00%
Borrowings outstanding     300,000 $ 0  
Senior Unsecured Notes | Senior unsecured notes, 4.25% interest rate, due in 2024          
Debt Instrument [Line Items]          
Interest rate (as a percent)       4.25%  
Borrowings outstanding     350,000 $ 350,000  
Senior Unsecured Notes | Senior unsecured notes, 4.50% interest rate, due in 2025          
Debt Instrument [Line Items]          
Interest rate (as a percent)       4.50%  
Borrowings outstanding     650,000 $ 650,000  
Senior Unsecured Notes | Senior unsecured notes, 2.650% interest rate, due in 2026          
Debt Instrument [Line Items]          
Interest rate (as a percent)       2.65%  
Borrowings outstanding     300,000 $ 300,000  
Senior Unsecured Notes | Senior unsecured notes, 2.400% interest rate, due in 2027          
Debt Instrument [Line Items]          
Interest rate (as a percent)       2.40%  
Borrowings outstanding     350,000 $ 350,000  
Senior Unsecured Notes | Senior unsecured notes, 3.450% interest rate, due in 2031          
Debt Instrument [Line Items]          
Interest rate (as a percent)       3.45%  
Borrowings outstanding     400,000 $ 400,000  
Senior Unsecured Notes | Senior unsecured notes, 6.375% interest rate, due in 2050          
Debt Instrument [Line Items]          
Interest rate (as a percent)       6.375%  
Borrowings outstanding     162,000 $ 162,000  
Mortgage Note Payable | Mortgage note payable, 4.220% interest rate, due in 2022          
Debt Instrument [Line Items]          
Interest rate (as a percent)   4.22%   4.22%  
Borrowings outstanding     25,055 $ 0  
Repayments of debt   $ 24,863      
Mortgage Note Payable | Mortgage note payable, 3.700% interest rate, due in 2023          
Debt Instrument [Line Items]          
Interest rate (as a percent)       3.70%  
Borrowings outstanding     50,000 $ 50,000  
Mortgage Note Payable | Mortgage note payable, 4.800% interest rate, due in 2023          
Debt Instrument [Line Items]          
Interest rate (as a percent)       4.80%  
Borrowings outstanding $ 22,901   23,246 $ 0  
Repayments of debt $ 22,176   22,176    
Revolving credit facility, due in 2023 | Line of Credit          
Debt Instrument [Line Items]          
Borrowings outstanding     $ 0 $ 195,000  
v3.22.4
Indebtedness - Narrative (Details)
$ in Thousands
1 Months Ended 12 Months Ended
Oct. 31, 2022
USD ($)
property
Apr. 30, 2022
USD ($)
Dec. 31, 2022
USD ($)
property
extensionOption
Dec. 31, 2021
USD ($)
property
Dec. 31, 2020
USD ($)
Feb. 14, 2023
USD ($)
Nov. 30, 2022
USD ($)
Jun. 30, 2022
USD ($)
Debt Instrument [Line Items]                
Principal of properties collateralized     $ 50,000          
Borrowings outstanding     2,457,000 $ 2,610,301        
Gain (loss) on early extinguishment of debt     $ 682 (14,068) $ (3,839)      
Number of properties (in properties) | property     160          
Number of buildings collateralized | property     1          
Book value of properties collateralized     $ 55,071          
Mortgage note payable, 4.220% interest rate, due in 2022                
Debt Instrument [Line Items]                
Borrowings outstanding       $ 25,055        
Number of properties (in properties) | property       1        
Mortgage note payable, 4.800% interest rate, due in 2023                
Debt Instrument [Line Items]                
Interest rate (as a percent) 4.80%              
Number of properties (in properties) | property 1     1        
Senior Unsecured Notes | Senior unsecured notes, 4.00% interest rate, due in 2022                
Debt Instrument [Line Items]                
Interest rate (as a percent)     4.00%         4.00%
Borrowings outstanding     $ 0 $ 300,000        
Repurchased face amount               $ 300,000
Gain (loss) on early extinguishment of debt     $ 77          
Mortgage Note Payable | Mortgage note payable, 4.220% interest rate, due in 2022                
Debt Instrument [Line Items]                
Interest rate (as a percent)   4.22% 4.22%          
Borrowings outstanding     $ 0 25,055        
Repayments of debt   $ 24,863            
Mortgage Note Payable | Mortgage note payable, 4.800% interest rate, due in 2023                
Debt Instrument [Line Items]                
Interest rate (as a percent)     4.80%          
Borrowings outstanding $ 22,901   $ 0 23,246        
Gain (loss) on early extinguishment of debt     759          
Repayments of debt $ 22,176     $ 22,176        
Unsecured Revolving Credit Facility                
Debt Instrument [Line Items]                
Maximum borrowing capacity on revolving credit facility     750,000          
Principal of properties collateralized     $ 1,950,000          
Extension fee             $ 469  
Number of contingent options to extend | extensionOption     1          
Contingent option to extend maturity date     6 months          
Commitment fee percentage     0.25%          
Interest rate (as a percent)     5.40% 1.20%        
Weighted average annual interest rate     4.00% 1.20% 2.00%      
Available borrowings     $ 555,000          
Unsecured Revolving Credit Facility | Subsequent Event                
Debt Instrument [Line Items]                
Available borrowings           $ 530,000    
Unsecured Revolving Credit Facility | LIBOR                
Debt Instrument [Line Items]                
Interest rate premium (as a percent)     1.10%          
Revolving credit facility, due in 2023 | Unsecured Revolving Credit Facility                
Debt Instrument [Line Items]                
Borrowings outstanding     $ 195,000 $ 0        
Revolving credit facility, due in 2023 | Unsecured Revolving Credit Facility | Subsequent Event                
Debt Instrument [Line Items]                
Borrowings outstanding           $ 220,000    
v3.22.4
Indebtedness - Future Principal Payments (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Apr. 30, 2022
Dec. 31, 2021
Debt Instrument [Line Items]      
2023 $ 245,000    
2024 350,000    
2025 650,000    
2026 300,000    
2027 350,000    
Thereafter 562,000    
Total 2,457,000   $ 2,610,301
Borrowings outstanding 2,457,000   2,610,301
Unamortized debt premiums, discounts and issuance 24,208   32,351
Total debt outstanding 2,432,792   2,577,950
Mortgage note payable, 4.220% interest rate, due in 2022      
Debt Instrument [Line Items]      
Total     25,055
Borrowings outstanding     25,055
Mortgage note payable, 4.220% interest rate, due in 2022 | Mortgage Note Payable      
Debt Instrument [Line Items]      
Total 0   25,055
Borrowings outstanding $ 0   $ 25,055
Interest rate (as a percent) 4.22% 4.22%  
v3.22.4
Fair Value of Assets and Liabilities - Financial Instruments (Details)
$ in Thousands
1 Months Ended 12 Months Ended
Oct. 31, 2022
USD ($)
property
Apr. 30, 2022
USD ($)
Dec. 31, 2021
USD ($)
property
Dec. 31, 2022
USD ($)
property
Jun. 30, 2022
Fair Value of Financial Instruments          
Senior notes     $ 2,479,772 $ 2,187,875  
Mortgage notes payable     98,178 49,917  
Unamortized debt premiums, discounts and issuance     32,351 $ 24,208  
Number of properties (in properties) | property       160  
Borrowings outstanding     $ 2,610,301 $ 2,457,000  
Mortgage note payable, 4.220% interest rate, due in 2022          
Fair Value of Financial Instruments          
Number of properties (in properties) | property     1    
Borrowings outstanding     $ 25,055    
Mortgage note payable, 4.800% interest rate, due in 2023          
Fair Value of Financial Instruments          
Interest rate (as a percent) 4.80%        
Number of properties (in properties) | property 1   1    
Carrying Amount          
Fair Value of Financial Instruments          
Fair value of financial instruments     $ 2,577,950 2,237,792  
Fair Value          
Fair Value of Financial Instruments          
Fair value of financial instruments     2,661,462 1,840,543  
Senior Notes and Mortgages          
Fair Value of Financial Instruments          
Unamortized debt premiums, discounts and issuance     32,351 $ 24,208  
Senior Unsecured Notes | Senior unsecured notes, 4.00% interest rate, due in 2022          
Fair Value of Financial Instruments          
Interest rate (as a percent)       4.00% 4.00%
Borrowings outstanding     300,000 $ 0  
Senior Unsecured Notes | Senior unsecured notes, 4.25% interest rate, due in 2024          
Fair Value of Financial Instruments          
Interest rate (as a percent)       4.25%  
Borrowings outstanding     350,000 $ 350,000  
Senior Unsecured Notes | Senior unsecured notes, 4.50% interest rate, due in 2025          
Fair Value of Financial Instruments          
Interest rate (as a percent)       4.50%  
Borrowings outstanding     650,000 $ 650,000  
Senior Unsecured Notes | Senior unsecured notes, 2.650% interest rate, due in 2026          
Fair Value of Financial Instruments          
Interest rate (as a percent)       2.65%  
Borrowings outstanding     300,000 $ 300,000  
Senior Unsecured Notes | Senior unsecured notes, 2.400% interest rate, due in 2027          
Fair Value of Financial Instruments          
Interest rate (as a percent)       2.40%  
Borrowings outstanding     350,000 $ 350,000  
Senior Unsecured Notes | Senior unsecured notes, 3.450% interest rate, due in 2031          
Fair Value of Financial Instruments          
Interest rate (as a percent)       3.45%  
Borrowings outstanding     400,000 $ 400,000  
Senior Unsecured Notes | Senior unsecured notes, 6.375% interest rate, due in 2050          
Fair Value of Financial Instruments          
Interest rate (as a percent)       6.375%  
Borrowings outstanding     162,000 $ 162,000  
Senior Unsecured Notes | Carrying Amount | Senior unsecured notes, 4.00% interest rate, due in 2022          
Fair Value of Financial Instruments          
Senior notes     299,500 0  
Senior Unsecured Notes | Carrying Amount | Senior unsecured notes, 4.25% interest rate, due in 2024          
Fair Value of Financial Instruments          
Senior notes     344,581 346,863  
Senior Unsecured Notes | Carrying Amount | Senior unsecured notes, 4.50% interest rate, due in 2025          
Fair Value of Financial Instruments          
Senior notes     639,370 642,818  
Senior Unsecured Notes | Carrying Amount | Senior unsecured notes, 2.650% interest rate, due in 2026          
Fair Value of Financial Instruments          
Senior notes     297,213 297,839  
Senior Unsecured Notes | Carrying Amount | Senior unsecured notes, 2.400% interest rate, due in 2027          
Fair Value of Financial Instruments          
Senior notes     346,845 347,466  
Senior Unsecured Notes | Carrying Amount | Senior unsecured notes, 3.450% interest rate, due in 2031          
Fair Value of Financial Instruments          
Senior notes     395,744 396,178  
Senior Unsecured Notes | Carrying Amount | Senior unsecured notes, 6.375% interest rate, due in 2050          
Fair Value of Financial Instruments          
Senior notes     156,519 156,711  
Senior Unsecured Notes | Fair Value | Senior unsecured notes, 4.00% interest rate, due in 2022          
Fair Value of Financial Instruments          
Senior notes     304,148 0  
Senior Unsecured Notes | Fair Value | Senior unsecured notes, 4.25% interest rate, due in 2024          
Fair Value of Financial Instruments          
Senior notes     365,449 331,601  
Senior Unsecured Notes | Fair Value | Senior unsecured notes, 4.50% interest rate, due in 2025          
Fair Value of Financial Instruments          
Senior notes     687,749 589,388  
Senior Unsecured Notes | Fair Value | Senior unsecured notes, 2.650% interest rate, due in 2026          
Fair Value of Financial Instruments          
Senior notes     298,502 232,770  
Senior Unsecured Notes | Fair Value | Senior unsecured notes, 2.400% interest rate, due in 2027          
Fair Value of Financial Instruments          
Senior notes     339,764 256,606  
Senior Unsecured Notes | Fair Value | Senior unsecured notes, 3.450% interest rate, due in 2031          
Fair Value of Financial Instruments          
Senior notes     388,458 268,004  
Senior Unsecured Notes | Fair Value | Senior unsecured notes, 6.375% interest rate, due in 2050          
Fair Value of Financial Instruments          
Senior notes     177,098 $ 113,075  
Mortgages | Mortgage note payable, 4.220% interest rate, due in 2022          
Fair Value of Financial Instruments          
Interest rate (as a percent)   4.22%   4.22%  
Borrowings outstanding     25,055 $ 0  
Repayments of debt   $ 24,863      
Mortgages | Mortgage note payable, 4.800% interest rate, due in 2023          
Fair Value of Financial Instruments          
Interest rate (as a percent)       4.80%  
Borrowings outstanding $ 22,901   23,246 $ 0  
Repayments of debt $ 22,176   22,176    
Mortgages | Carrying Amount          
Fair Value of Financial Instruments          
Mortgage notes payable     98,178 49,917  
Mortgages | Fair Value          
Fair Value of Financial Instruments          
Mortgage notes payable     $ 100,294 $ 49,099  
v3.22.4
Shareholders' Equity - Share Awards (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2022
USD ($)
installment
shares
Dec. 31, 2021
USD ($)
shares
Dec. 31, 2020
USD ($)
shares
Dec. 31, 2019
shares
2009 Award Plan        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Shares granted (in shares) 172,700 145,800 136,600  
Number of installments | installment 5      
Unvested shares (in shares) 231,301 182,224 157,521 106,680
2023 (in shares) 84,941      
2024 (in shares) 67,620      
2025 (in shares) 50,500      
2026 (in shares) 28,240      
Estimated future compensation expense for the unvested shares | $ $ 4,343      
Weighted average period of recognition of compensation expenses (in years) 22 months      
Compensation expense | $ $ 2,905 $ 2,868 $ 3,315  
Shares available for issuance under plan (in shares) 847,631      
Officers and Other Employees        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Issuance of shares, net (in shares) 141,200 117,800 108,600  
Issuance of shares, net | $ $ 2,470 $ 2,994 $ 2,502  
Trustees | 2009 Award Plan        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Shares granted (in shares) 3,500 3,500 3,500  
Aggregate market value of shares awarded | $ $ 593 $ 837 $ 745  
Market value of common shares awarded to each trustee (in dollars) | $ $ 66 $ 105 $ 93  
v3.22.4
Shareholders' Equity - Unvested Shares Activity (Details) - 2009 Award Plan - $ / shares
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Number of Shares      
Unvested at the beginning of the period (in shares) 182,224 157,521 106,680
Granted (in shares) 172,700 145,800 136,600
Forfeited (in shares) (1,900) (700) (586)
Vested (in shares) (121,723) (120,397) (85,173)
Unvested at the end of the period (in shares) 231,301 182,224 157,521
Weighted Average Grant Date Fair Value      
Unvested at the beginning of the period (in dollars per share) $ 26.23 $ 29.26 $ 40.16
Granted (in dollars per share) 17.74 26.28 23.77
Forfeited (in dollars per share) 25.97 25.97 43.75
Vested (in dollars per share) 23.24 30.24 34.02
Unvested at the end of the period (in dollars per share) $ 21.47 $ 26.23 $ 29.26
v3.22.4
Shareholders' Equity - Share Repurchases/Sale of Shares (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Jan. 12, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Class of Stock [Line Items]        
Share repurchases (in shares)   30,821 37,801 19,589
Stock repurchase price (in dollars per share)   $ 17.54 $ 26.55 $ 22.15
Subsequent Event        
Class of Stock [Line Items]        
Common distributions declared (in dollars per share) $ 0.55      
Dividends payable $ 26,700      
v3.22.4
Shareholders' Equity - Distribution (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Equity [Abstract]      
Annual Per Share Distribution (in dollars per share) $ 2.20 $ 2.20 $ 2.20
Total Distributions $ 106,630 $ 106,368 $ 106,121
Characterization of Distribution, Return of Capital 62.68% 0.00% 0.00%
Characterization of Distribution, Ordinary Income 37.32% 100.00% 100.00%
Characterization of Distribution, Quality Dividend 0.00% 0.00% 0.00%
v3.22.4
SCHEDULE III REAL ESTATE AND ACCUMULATED DEPRECIATION (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2022
USD ($)
property
building
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Real estate and accumulated depreciation        
Number of Properties | property 157      
Encumbrances $ 49,917      
Initial Cost to Company        
Land 820,568      
Buildings and Equipment 2,531,553      
Costs Capitalized Subsequent to Acquisition 588,478      
Impairment/ Writedowns (4,525)      
Cost amount carried at Close of Period        
Land 821,238      
Buildings and Equipment 3,114,836      
Total 3,936,074 $ 3,911,086 $ 3,522,143 $ 3,493,231
Accumulated Depreciation $ (561,458) $ (495,912) $ (451,914) $ (387,656)
445 Jan Davis Drive, Huntsville, AL        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 1,501      
Buildings and Equipment 1,492      
Costs Capitalized Subsequent to Acquisition 0      
Cost amount carried at Close of Period        
Land 1,501      
Buildings and Equipment 1,492      
Total 2,993      
Accumulated Depreciation $ (160)      
131 Clayton Street, Montgomery, AL        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 920      
Buildings and Equipment 9,084      
Costs Capitalized Subsequent to Acquisition 417      
Cost amount carried at Close of Period        
Land 920      
Buildings and Equipment 9,501      
Total 10,421      
Accumulated Depreciation $ (2,690)      
4344 Carmichael Road, Montgomery, AL        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 1,374      
Buildings and Equipment 11,658      
Costs Capitalized Subsequent to Acquisition 562      
Cost amount carried at Close of Period        
Land 1,374      
Buildings and Equipment 12,220      
Total 13,594      
Accumulated Depreciation $ (2,766)      
15451 North 28th Avenue, Phoenix, AZ        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 1,917      
Buildings and Equipment 7,416      
Costs Capitalized Subsequent to Acquisition 765      
Cost amount carried at Close of Period        
Land 1,917      
Buildings and Equipment 8,181      
Total 10,098      
Accumulated Depreciation $ (1,756)      
16001 North 28th Ave, Phoenix, AZ        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 3,355      
Buildings and Equipment 412      
Costs Capitalized Subsequent to Acquisition 1,146      
Cost amount carried at Close of Period        
Land 3,355      
Buildings and Equipment 1,558      
Total 4,913      
Accumulated Depreciation $ (273)      
711 S 14th Ave, Safford, AZ        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 460      
Buildings and Equipment 11,708      
Costs Capitalized Subsequent to Acquisition 884      
Impairment/ Writedowns (4,440)      
Cost amount carried at Close of Period        
Land 364      
Buildings and Equipment 8,248      
Total 8,612      
Accumulated Depreciation $ (1,381)      
Regents Center, Tempe, AZ        
Real estate and accumulated depreciation        
Number of Properties | property 2      
Initial Cost to Company        
Land $ 4,121      
Buildings and Equipment 3,042      
Costs Capitalized Subsequent to Acquisition 293      
Cost amount carried at Close of Period        
Land 4,121      
Buildings and Equipment 3,335      
Total 7,456      
Accumulated Depreciation $ (660)      
Campbell Place, Carlsbad, CA        
Real estate and accumulated depreciation        
Number of Properties | property 2      
Initial Cost to Company        
Land $ 5,769      
Buildings and Equipment 3,871      
Costs Capitalized Subsequent to Acquisition 7,517      
Cost amount carried at Close of Period        
Land 5,769      
Buildings and Equipment 11,388      
Total 17,157      
Accumulated Depreciation $ (2,438)      
Folsom Corporate Center, Folsom, CA        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 2,904      
Buildings and Equipment 5,583      
Costs Capitalized Subsequent to Acquisition 1,567      
Cost amount carried at Close of Period        
Land 2,904      
Buildings and Equipment 7,150      
Total 10,054      
Accumulated Depreciation $ (816)      
Bayside Technology Park, Fremont, CA        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 10,784      
Buildings and Equipment 648      
Costs Capitalized Subsequent to Acquisition 198      
Cost amount carried at Close of Period        
Land 10,784      
Buildings and Equipment 846      
Total 11,630      
Accumulated Depreciation $ (110)      
10949 N. Mather Boulevard, Rancho Cordova, CA        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 562      
Buildings and Equipment 16,923      
Costs Capitalized Subsequent to Acquisition 1,012      
Cost amount carried at Close of Period        
Land 562      
Buildings and Equipment 17,935      
Total 18,497      
Accumulated Depreciation $ (4,165)      
11020 Sun Center Drive, Rancho Cordova, CA        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 1,466      
Buildings and Equipment 8,797      
Costs Capitalized Subsequent to Acquisition 1,409      
Cost amount carried at Close of Period        
Land 1,466      
Buildings and Equipment 10,206      
Total 11,672      
Accumulated Depreciation $ (1,827)      
100 Redwood Shores Parkway, Redwood City, CA        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 14,454      
Buildings and Equipment 7,721      
Costs Capitalized Subsequent to Acquisition 0      
Cost amount carried at Close of Period        
Land 14,454      
Buildings and Equipment 7,721      
Total 22,175      
Accumulated Depreciation $ (857)      
3875 Atherton Road, Rocklin, CA        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 177      
Buildings and Equipment 853      
Costs Capitalized Subsequent to Acquisition 23      
Cost amount carried at Close of Period        
Land 177      
Buildings and Equipment 876      
Total 1,053      
Accumulated Depreciation $ (95)      
801 K Street, Sacramento, CA        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 4,688      
Buildings and Equipment 61,994      
Costs Capitalized Subsequent to Acquisition 9,465      
Cost amount carried at Close of Period        
Land 4,688      
Buildings and Equipment 71,459      
Total 76,147      
Accumulated Depreciation $ (12,968)      
9815 Goethe Road, Sacramento, CA        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 1,450      
Buildings and Equipment 9,465      
Costs Capitalized Subsequent to Acquisition 1,603      
Cost amount carried at Close of Period        
Land 1,450      
Buildings and Equipment 11,068      
Total 12,518      
Accumulated Depreciation $ (3,109)      
Capitol Place, Sacramento, CA        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 2,290      
Buildings and Equipment 35,891      
Costs Capitalized Subsequent to Acquisition 8,767      
Cost amount carried at Close of Period        
Land 2,290      
Buildings and Equipment 44,658      
Total 46,948      
Accumulated Depreciation $ (14,418)      
4560 Viewridge Road, San Diego, CA        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 4,269      
Buildings and Equipment 18,316      
Costs Capitalized Subsequent to Acquisition 5,146      
Cost amount carried at Close of Period        
Land 4,347      
Buildings and Equipment 23,384      
Total 27,731      
Accumulated Depreciation $ (13,942)      
2115 O'Nel Drive, San Jose, CA        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 12,305      
Buildings and Equipment 5,062      
Costs Capitalized Subsequent to Acquisition 350      
Cost amount carried at Close of Period        
Land 12,305      
Buildings and Equipment 5,412      
Total 17,717      
Accumulated Depreciation $ (587)      
North First Street, San Jose, CA        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 8,311      
Buildings and Equipment 4,003      
Costs Capitalized Subsequent to Acquisition 411      
Cost amount carried at Close of Period        
Land 8,311      
Buildings and Equipment 4,414      
Total 12,725      
Accumulated Depreciation $ (572)      
Rio Robles Drive, San Jose, CA        
Real estate and accumulated depreciation        
Number of Properties | property 3      
Initial Cost to Company        
Land $ 23,687      
Buildings and Equipment 13,698      
Costs Capitalized Subsequent to Acquisition 12,637      
Cost amount carried at Close of Period        
Land 23,687      
Buildings and Equipment 26,335      
Total 50,022      
Accumulated Depreciation $ (2,332)      
2450 and 2500 Walsh Avenue, Santa Clara, CA        
Real estate and accumulated depreciation        
Number of Properties | property 2      
Initial Cost to Company        
Land $ 13,374      
Buildings and Equipment 16,651      
Costs Capitalized Subsequent to Acquisition 194      
Cost amount carried at Close of Period        
Land 13,374      
Buildings and Equipment 16,845      
Total 30,219      
Accumulated Depreciation $ (1,878)      
3250 and 3260 Jay Street, Santa Clara, CA        
Real estate and accumulated depreciation        
Number of Properties | property 2      
Initial Cost to Company        
Land $ 19,899      
Buildings and Equipment 14,051      
Costs Capitalized Subsequent to Acquisition 20      
Cost amount carried at Close of Period        
Land 19,899      
Buildings and Equipment 14,071      
Total 33,970      
Accumulated Depreciation $ (1,558)      
603 San Juan Avenue, Stockton, CA        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 563      
Buildings and Equipment 5,470      
Costs Capitalized Subsequent to Acquisition 93      
Cost amount carried at Close of Period        
Land 563      
Buildings and Equipment 5,563      
Total 6,126      
Accumulated Depreciation $ (1,436)      
350 West Java Drive, Sunnyvale, CA        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 24,609      
Buildings and Equipment 462      
Costs Capitalized Subsequent to Acquisition 408      
Cost amount carried at Close of Period        
Land 24,609      
Buildings and Equipment 870      
Total 25,479      
Accumulated Depreciation $ (93)      
7958 South Chester Street, Centennial, CO        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 6,682      
Buildings and Equipment 7,153      
Costs Capitalized Subsequent to Acquisition 1,410      
Cost amount carried at Close of Period        
Land 6,682      
Buildings and Equipment 8,563      
Total 15,245      
Accumulated Depreciation $ (924)      
350 Spectrum Loop, Colorado Springs, CO        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 3,650      
Buildings and Equipment 7,732      
Costs Capitalized Subsequent to Acquisition 573      
Cost amount carried at Close of Period        
Land 3,650      
Buildings and Equipment 8,305      
Total 11,955      
Accumulated Depreciation $ (933)      
12795 West Alameda Parkway, Lakewood, CO        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 2,640      
Buildings and Equipment 23,777      
Costs Capitalized Subsequent to Acquisition 1,535      
Cost amount carried at Close of Period        
Land 2,640      
Buildings and Equipment 25,312      
Total 27,952      
Accumulated Depreciation $ (8,177)      
Corporate Center, Lakewood, CO        
Real estate and accumulated depreciation        
Number of Properties | property 3      
Initial Cost to Company        
Land $ 2,887      
Buildings and Equipment 27,537      
Costs Capitalized Subsequent to Acquisition 2,689      
Cost amount carried at Close of Period        
Land 2,887      
Buildings and Equipment 30,226      
Total 33,113      
Accumulated Depreciation $ (14,630)      
11 Dupont Circle, NW, Washington DC        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 28,255      
Buildings and Equipment 44,743      
Costs Capitalized Subsequent to Acquisition 18,712      
Cost amount carried at Close of Period        
Land 28,255      
Buildings and Equipment 63,455      
Total 91,710      
Accumulated Depreciation $ (10,002)      
1211 Connecticut Avenue, NW, Washington DC        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 30,388      
Buildings and Equipment 24,667      
Costs Capitalized Subsequent to Acquisition 3,871      
Cost amount carried at Close of Period        
Land 30,388      
Buildings and Equipment 28,538      
Total 58,926      
Accumulated Depreciation $ (4,681)      
1401 K Street, NW, Washington DC        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 29,215      
Buildings and Equipment 34,656      
Costs Capitalized Subsequent to Acquisition 7,146      
Cost amount carried at Close of Period        
Land 29,215      
Buildings and Equipment 41,802      
Total 71,017      
Accumulated Depreciation $ (7,675)      
20 Massachusetts Avenue, Washington DC        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 12,009      
Buildings and Equipment 51,527      
Costs Capitalized Subsequent to Acquisition 178,984      
Cost amount carried at Close of Period        
Land 12,231      
Buildings and Equipment 230,289      
Total 242,520      
Accumulated Depreciation $ (42,535)      
440 First Street, NW, Washington DC        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 27,903      
Buildings and Equipment 38,624      
Costs Capitalized Subsequent to Acquisition 2,315      
Cost amount carried at Close of Period        
Land 27,903      
Buildings and Equipment 40,939      
Total 68,842      
Accumulated Depreciation $ (5,678)      
625 Indiana Avenue, Washington DC        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 26,000      
Buildings and Equipment 25,955      
Costs Capitalized Subsequent to Acquisition 10,652      
Cost amount carried at Close of Period        
Land 26,000      
Buildings and Equipment 36,607      
Total 62,607      
Accumulated Depreciation $ (10,956)      
840 First Street, NE, Washington DC        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 42,727      
Buildings and Equipment 73,278      
Costs Capitalized Subsequent to Acquisition 3,949      
Cost amount carried at Close of Period        
Land 42,727      
Buildings and Equipment 77,227      
Total 119,954      
Accumulated Depreciation $ (11,073)      
10350 NW 112th Avenue, Miami, FL        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 4,798      
Buildings and Equipment 2,757      
Costs Capitalized Subsequent to Acquisition 1,903      
Cost amount carried at Close of Period        
Land 4,798      
Buildings and Equipment 4,660      
Total 9,458      
Accumulated Depreciation $ (441)      
7850 Southwest 6th Court, Plantation, FL        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 4,800      
Buildings and Equipment 30,592      
Costs Capitalized Subsequent to Acquisition 1,167      
Cost amount carried at Close of Period        
Land 4,800      
Buildings and Equipment 31,759      
Total 36,559      
Accumulated Depreciation $ (9,022)      
8900 Grand Oak Circle, Tampa, FL        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 1,100      
Buildings and Equipment 11,773      
Costs Capitalized Subsequent to Acquisition 1,142      
Cost amount carried at Close of Period        
Land 1,100      
Buildings and Equipment 12,915      
Total 14,015      
Accumulated Depreciation $ (3,830)      
180 Ted Turner Drive SW, Atlanta, GA        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 5,717      
Buildings and Equipment 20,017      
Costs Capitalized Subsequent to Acquisition 726      
Cost amount carried at Close of Period        
Land 5,717      
Buildings and Equipment 20,743      
Total 26,460      
Accumulated Depreciation $ (5,401)      
1224 Hammond Drive, Atlanta GA        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 13,040      
Buildings and Equipment 135,459      
Costs Capitalized Subsequent to Acquisition 11,627      
Cost amount carried at Close of Period        
Land 13,040      
Buildings and Equipment 147,086      
Total 160,126      
Accumulated Depreciation $ (6,189)      
Corporate Square, Atlanta, GA        
Real estate and accumulated depreciation        
Number of Properties | property 5      
Initial Cost to Company        
Land $ 3,996      
Buildings and Equipment 29,762      
Costs Capitalized Subsequent to Acquisition 28,076      
Cost amount carried at Close of Period        
Land 3,996      
Buildings and Equipment 57,838      
Total 61,834      
Accumulated Depreciation $ (20,701)      
Executive Park, Atlanta, GA        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 1,521      
Buildings and Equipment 11,826      
Costs Capitalized Subsequent to Acquisition 4,123      
Cost amount carried at Close of Period        
Land 1,521      
Buildings and Equipment 15,949      
Total 17,470      
Accumulated Depreciation $ (8,424)      
One Georgia Center, Atlanta, GA        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 10,250      
Buildings and Equipment 27,933      
Costs Capitalized Subsequent to Acquisition 18,781      
Cost amount carried at Close of Period        
Land 10,250      
Buildings and Equipment 46,714      
Total 56,964      
Accumulated Depreciation $ (11,782)      
One Primerica Parkway, Duluth, GA        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 6,927      
Buildings and Equipment 22,951      
Costs Capitalized Subsequent to Acquisition 0      
Cost amount carried at Close of Period        
Land 6,927      
Buildings and Equipment 22,951      
Total 29,878      
Accumulated Depreciation $ (2,545)      
4712 Southpark Boulevard, Ellenwood, GA        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 1,390      
Buildings and Equipment 19,635      
Costs Capitalized Subsequent to Acquisition 248      
Cost amount carried at Close of Period        
Land 1,390      
Buildings and Equipment 19,883      
Total 21,273      
Accumulated Depreciation $ (5,152)      
8305 NW 62nd Avenue, Johnston, IA        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 2,649      
Buildings and Equipment 7,997      
Costs Capitalized Subsequent to Acquisition 0      
Cost amount carried at Close of Period        
Land 2,649      
Buildings and Equipment 7,997      
Total 10,646      
Accumulated Depreciation $ (887)      
1185, 1249 & 1387 S. Vinnell Way, Boise, ID        
Real estate and accumulated depreciation        
Number of Properties | property 3      
Initial Cost to Company        
Land $ 3,390      
Buildings and Equipment 29,026      
Costs Capitalized Subsequent to Acquisition 1,101      
Cost amount carried at Close of Period        
Land 3,390      
Buildings and Equipment 30,127      
Total 33,517      
Accumulated Depreciation $ (7,835)      
2020 S. Arlington Heights, Arlington Heights, IL        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 1,450      
Buildings and Equipment 13,588      
Costs Capitalized Subsequent to Acquisition 2,139      
Cost amount carried at Close of Period        
Land 1,450      
Buildings and Equipment 15,727      
Total 17,177      
Accumulated Depreciation $ (4,654)      
400 South Jefferson Street, Chicago, IL        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Encumbrances $ 49,917      
Initial Cost to Company        
Land 19,379      
Buildings and Equipment 20,115      
Costs Capitalized Subsequent to Acquisition 783      
Cost amount carried at Close of Period        
Land 19,379      
Buildings and Equipment 20,898      
Total 40,277      
Accumulated Depreciation $ (2,381)      
1000 W. Fulton, Chicago IL        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 42,935      
Buildings and Equipment 252,914      
Costs Capitalized Subsequent to Acquisition 94      
Cost amount carried at Close of Period        
Land 42,935      
Buildings and Equipment 253,008      
Total 295,943      
Accumulated Depreciation $ (12,816)      
HUB 1415, Naperville IL        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 12,333      
Buildings and Equipment 20,586      
Costs Capitalized Subsequent to Acquisition 16,211      
Cost amount carried at Close of Period        
Land 12,333      
Buildings and Equipment 36,797      
Total 49,130      
Accumulated Depreciation $ (4,616)      
440 North Fairway Drive, Vernon Hills, IL        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 4,465      
Buildings and Equipment 441      
Costs Capitalized Subsequent to Acquisition 10      
Cost amount carried at Close of Period        
Land 4,465      
Buildings and Equipment 451      
Total 4,916      
Accumulated Depreciation $ (51)      
7601 and 7635 Interactive Way, Indianapolis, IN        
Real estate and accumulated depreciation        
Number of Properties | property 2      
Initial Cost to Company        
Land $ 3,337      
Buildings and Equipment 14,522      
Costs Capitalized Subsequent to Acquisition 34      
Cost amount carried at Close of Period        
Land 3,337      
Buildings and Equipment 14,556      
Total 17,893      
Accumulated Depreciation $ (1,517)      
Intech Park, Indianapolis, IN        
Real estate and accumulated depreciation        
Number of Properties | property 3      
Initial Cost to Company        
Land $ 4,170      
Buildings and Equipment 69,759      
Costs Capitalized Subsequent to Acquisition 10,389      
Cost amount carried at Close of Period        
Land 4,170      
Buildings and Equipment 80,148      
Total 84,318      
Accumulated Depreciation $ (23,417)      
7125 Industrial Road, Florence, KY        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 1,698      
Buildings and Equipment 11,722      
Costs Capitalized Subsequent to Acquisition 293      
Cost amount carried at Close of Period        
Land 1,698      
Buildings and Equipment 12,015      
Total 13,713      
Accumulated Depreciation $ (3,030)      
251 Causeway Street, Boston, MA        
Real estate and accumulated depreciation        
Number of Properties | property 3      
Initial Cost to Company        
Land $ 26,851      
Buildings and Equipment 36,756      
Costs Capitalized Subsequent to Acquisition 4,662      
Cost amount carried at Close of Period        
Land 26,851      
Buildings and Equipment 41,418      
Total 68,269      
Accumulated Depreciation $ (7,688)      
300 Billerica road, Chelmsford, MA        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 2,223      
Buildings and Equipment 0      
Costs Capitalized Subsequent to Acquisition 45      
Cost amount carried at Close of Period        
Land 2,223      
Buildings and Equipment 45      
Total 2,268      
Accumulated Depreciation $ (13)      
330 Billerica road, Chelmsford, MA        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 2,477      
Buildings and Equipment 0      
Costs Capitalized Subsequent to Acquisition 10,103      
Cost amount carried at Close of Period        
Land 2,477      
Buildings and Equipment 10,103      
Total 12,580      
Accumulated Depreciation $ (1,113)      
75 Pleasant Street, Malden, MA        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 1,050      
Buildings and Equipment 31,086      
Costs Capitalized Subsequent to Acquisition 856      
Cost amount carried at Close of Period        
Land 1,050      
Buildings and Equipment 31,942      
Total 32,992      
Accumulated Depreciation $ (10,300)      
25 Newport Avenue, Quincy, MA        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 2,700      
Buildings and Equipment 9,199      
Costs Capitalized Subsequent to Acquisition 2,143      
Cost amount carried at Close of Period        
Land 2,700      
Buildings and Equipment 11,342      
Total 14,042      
Accumulated Depreciation $ (3,154)      
314 Littleton Road, Westford, MA        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 5,691      
Buildings and Equipment 8,487      
Costs Capitalized Subsequent to Acquisition 100      
Cost amount carried at Close of Period        
Land 5,691      
Buildings and Equipment 8,587      
Total 14,278      
Accumulated Depreciation $ (956)      
Annapolis Commerce Center, Annapolis, MD        
Real estate and accumulated depreciation        
Number of Properties | property 2      
Initial Cost to Company        
Land $ 4,057      
Buildings and Equipment 7,665      
Costs Capitalized Subsequent to Acquisition 4,628      
Cost amount carried at Close of Period        
Land 4,057      
Buildings and Equipment 12,293      
Total 16,350      
Accumulated Depreciation $ (1,679)      
4201 Patterson Avenue, Baltimore, MD        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 901      
Buildings and Equipment 8,097      
Costs Capitalized Subsequent to Acquisition 4,134      
Impairment/ Writedowns (85)      
Cost amount carried at Close of Period        
Land 893      
Buildings and Equipment 12,154      
Total 13,047      
Accumulated Depreciation $ (6,744)      
7001 Columbia Gateway Drive, Columbia, MD        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 5,642      
Buildings and Equipment 10,352      
Costs Capitalized Subsequent to Acquisition 569      
Cost amount carried at Close of Period        
Land 5,642      
Buildings and Equipment 10,921      
Total 16,563      
Accumulated Depreciation $ (1,271)      
Hillside Center, Columbia, MD        
Real estate and accumulated depreciation        
Number of Properties | property 2      
Initial Cost to Company        
Land $ 3,437      
Buildings and Equipment 4,228      
Costs Capitalized Subsequent to Acquisition 971      
Cost amount carried at Close of Period        
Land 3,437      
Buildings and Equipment 5,199      
Total 8,636      
Accumulated Depreciation $ (859)      
TenThreeTwenty, Columbia, MD        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 3,126      
Buildings and Equipment 16,361      
Costs Capitalized Subsequent to Acquisition 3,681      
Cost amount carried at Close of Period        
Land 3,126      
Buildings and Equipment 20,042      
Total 23,168      
Accumulated Depreciation $ (2,782)      
3300 75th Avenue, Landover, MD        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 4,110      
Buildings and Equipment 36,371      
Costs Capitalized Subsequent to Acquisition 3,302      
Cost amount carried at Close of Period        
Land 4,110      
Buildings and Equipment 39,673      
Total 43,783      
Accumulated Depreciation $ (12,615)      
Redland 520/530, Rockville, MD        
Real estate and accumulated depreciation        
Number of Properties | property 3      
Initial Cost to Company        
Land $ 12,714      
Buildings and Equipment 61,377      
Costs Capitalized Subsequent to Acquisition 6,951      
Cost amount carried at Close of Period        
Land 12,714      
Buildings and Equipment 68,328      
Total 81,042      
Accumulated Depreciation $ (8,937)      
Redland 540, Rockville, MD        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 10,740      
Buildings and Equipment 17,714      
Costs Capitalized Subsequent to Acquisition 6,231      
Cost amount carried at Close of Period        
Land 10,740      
Buildings and Equipment 23,945      
Total 34,685      
Accumulated Depreciation $ (5,635)      
Rutherford Business Park, Windsor Mill, MD        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 1,598      
Buildings and Equipment 10,219      
Costs Capitalized Subsequent to Acquisition 545      
Cost amount carried at Close of Period        
Land 1,598      
Buildings and Equipment 10,764      
Total 12,362      
Accumulated Depreciation $ (2,741)      
3550 Green Court, Ann Arbor, MI        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 3,630      
Buildings and Equipment 4,857      
Costs Capitalized Subsequent to Acquisition 0      
Cost amount carried at Close of Period        
Land 3,630      
Buildings and Equipment 4,857      
Total 8,487      
Accumulated Depreciation $ (571)      
11411 E. Jefferson Avenue, Detroit, MI        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 630      
Buildings and Equipment 18,002      
Costs Capitalized Subsequent to Acquisition 567      
Cost amount carried at Close of Period        
Land 630      
Buildings and Equipment 18,569      
Total 19,199      
Accumulated Depreciation $ (5,839)      
Rosedale Corporate Plaza, Roseville, MN        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 672      
Buildings and Equipment 6,045      
Costs Capitalized Subsequent to Acquisition 1,547      
Cost amount carried at Close of Period        
Land 672      
Buildings and Equipment 7,592      
Total 8,264      
Accumulated Depreciation $ (4,636)      
1300 Summit Street, Kansas City, MO        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 2,776      
Buildings and Equipment 12,070      
Costs Capitalized Subsequent to Acquisition 900      
Cost amount carried at Close of Period        
Land 2,776      
Buildings and Equipment 12,970      
Total 15,746      
Accumulated Depreciation $ (3,334)      
2555 Grand Boulevard, Kansas City, MO        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 4,209      
Buildings and Equipment 51,522      
Costs Capitalized Subsequent to Acquisition 4,778      
Cost amount carried at Close of Period        
Land 4,209      
Buildings and Equipment 56,300      
Total 60,509      
Accumulated Depreciation $ (6,356)      
4241 NE 34th Street, Kansas City, MO        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 1,133      
Buildings and Equipment 5,649      
Costs Capitalized Subsequent to Acquisition 4,908      
Cost amount carried at Close of Period        
Land 1,470      
Buildings and Equipment 10,220      
Total 11,690      
Accumulated Depreciation $ (5,127)      
1220 Echelon Parkway, Jackson, MS        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 440      
Buildings and Equipment 25,458      
Costs Capitalized Subsequent to Acquisition 561      
Cost amount carried at Close of Period        
Land 440      
Buildings and Equipment 26,019      
Total 26,459      
Accumulated Depreciation $ (6,800)      
2300 and 2400 Yorkmont Road, Charlotte, NC        
Real estate and accumulated depreciation        
Number of Properties | property 2      
Initial Cost to Company        
Land $ 1,334      
Buildings and Equipment 19,075      
Costs Capitalized Subsequent to Acquisition 3,200      
Cost amount carried at Close of Period        
Land 1,334      
Buildings and Equipment 22,275      
Total 23,609      
Accumulated Depreciation $ (2,725)      
18010 and 18020 Burt Street, Omaha, NE        
Real estate and accumulated depreciation        
Number of Properties | property 2      
Initial Cost to Company        
Land $ 6,977      
Buildings and Equipment 12,500      
Costs Capitalized Subsequent to Acquisition 0      
Cost amount carried at Close of Period        
Land 6,977      
Buildings and Equipment 12,500      
Total 19,477      
Accumulated Depreciation $ (1,386)      
500 Charles Ewing Boulevard, Ewing, NJ        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 4,808      
Buildings and Equipment 26,002      
Costs Capitalized Subsequent to Acquisition 281      
Cost amount carried at Close of Period        
Land 4,808      
Buildings and Equipment 26,283      
Total 31,091      
Accumulated Depreciation $ (2,883)      
299 Jefferson Road, Parsippany, NJ        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 4,543      
Buildings and Equipment 2,914      
Costs Capitalized Subsequent to Acquisition 935      
Cost amount carried at Close of Period        
Land 4,543      
Buildings and Equipment 3,849      
Total 8,392      
Accumulated Depreciation $ (554)      
One Jefferson Road, Parsippany, NJ        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 4,415      
Buildings and Equipment 5,249      
Costs Capitalized Subsequent to Acquisition 63      
Cost amount carried at Close of Period        
Land 4,415      
Buildings and Equipment 5,312      
Total 9,727      
Accumulated Depreciation $ (588)      
Airline Corporate Center, Colonie, NY        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 790      
Buildings and Equipment 6,400      
Costs Capitalized Subsequent to Acquisition 1,827      
Cost amount carried at Close of Period        
Land 790      
Buildings and Equipment 8,227      
Total 9,017      
Accumulated Depreciation $ (1,876)      
1212 Pittsford - Victor Road, Pittsford, NY        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 608      
Buildings and Equipment 78      
Costs Capitalized Subsequent to Acquisition 847      
Cost amount carried at Close of Period        
Land 608      
Buildings and Equipment 925      
Total 1,533      
Accumulated Depreciation $ (106)      
2231 Schrock Road, Columbus, OH        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 716      
Buildings and Equipment 217      
Costs Capitalized Subsequent to Acquisition 578      
Cost amount carried at Close of Period        
Land 716      
Buildings and Equipment 795      
Total 1,511      
Accumulated Depreciation $ (98)      
8800 Tinicum Boulevard, Philadelphia, PA        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 5,573      
Buildings and Equipment 22,686      
Costs Capitalized Subsequent to Acquisition 5,934      
Cost amount carried at Close of Period        
Land 5,573      
Buildings and Equipment 28,620      
Total 34,193      
Accumulated Depreciation $ (2,738)      
446 Wrenplace Road, Fort Mill, SC        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 5,031      
Buildings and Equipment 22,524      
Costs Capitalized Subsequent to Acquisition 0      
Cost amount carried at Close of Period        
Land 5,031      
Buildings and Equipment 22,524      
Total 27,555      
Accumulated Depreciation $ (1,140)      
9680 Old Bailes Road, Fort Mill, SC        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 834      
Buildings and Equipment 2,944      
Costs Capitalized Subsequent to Acquisition 53      
Cost amount carried at Close of Period        
Land 834      
Buildings and Equipment 2,997      
Total 3,831      
Accumulated Depreciation $ (333)      
16001 North Dallas Parkway, Addison, TX        
Real estate and accumulated depreciation        
Number of Properties | property 2      
Initial Cost to Company        
Land $ 10,282      
Buildings and Equipment 63,071      
Costs Capitalized Subsequent to Acquisition 1,911      
Cost amount carried at Close of Period        
Land 10,282      
Buildings and Equipment 64,982      
Total 75,264      
Accumulated Depreciation $ (7,529)      
Research Park, Austin, TX        
Real estate and accumulated depreciation        
Number of Properties | property 2      
Initial Cost to Company        
Land $ 4,258      
Buildings and Equipment 13,747      
Costs Capitalized Subsequent to Acquisition 199      
Cost amount carried at Close of Period        
Land 4,258      
Buildings and Equipment 13,946      
Total 18,204      
Accumulated Depreciation $ (2,787)      
10451 Clay Road, Houston, TX        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 5,495      
Buildings and Equipment 10,253      
Costs Capitalized Subsequent to Acquisition 2,432      
Cost amount carried at Close of Period        
Land 5,495      
Buildings and Equipment 12,685      
Total 18,180      
Accumulated Depreciation $ (1,139)      
202 North Castlegory Road, Houston, TX        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 863      
Buildings and Equipment 5,024      
Costs Capitalized Subsequent to Acquisition 8      
Cost amount carried at Close of Period        
Land 863      
Buildings and Equipment 5,032      
Total 5,895      
Accumulated Depreciation $ (524)      
4221 W. John Carpenter Freeway, Irving, TX        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 1,413      
Buildings and Equipment 2,365      
Costs Capitalized Subsequent to Acquisition 1,843      
Cost amount carried at Close of Period        
Land 1,413      
Buildings and Equipment 4,208      
Total 5,621      
Accumulated Depreciation $ (1,091)      
8675, 8701-8711 Freeport Pkwy and 8901 Esters Boulevard, Irving, TX        
Real estate and accumulated depreciation        
Number of Properties | property 3      
Initial Cost to Company        
Land $ 10,185      
Buildings and Equipment 31,566      
Costs Capitalized Subsequent to Acquisition 68      
Cost amount carried at Close of Period        
Land 10,185      
Buildings and Equipment 31,634      
Total 41,819      
Accumulated Depreciation $ (3,500)      
1511 East Common Street, New Braunfels, TX        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 4,965      
Buildings and Equipment 1,266      
Costs Capitalized Subsequent to Acquisition 251      
Cost amount carried at Close of Period        
Land 4,965      
Buildings and Equipment 1,517      
Total 6,482      
Accumulated Depreciation $ (223)      
2900 West Plano Parkway, Plano, TX        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 6,819      
Buildings and Equipment 8,831      
Costs Capitalized Subsequent to Acquisition 0      
Cost amount carried at Close of Period        
Land 6,819      
Buildings and Equipment 8,831      
Total 15,650      
Accumulated Depreciation $ (979)      
3400 West Plano Parkway, Plano, TX        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 4,543      
Buildings and Equipment 15,964      
Costs Capitalized Subsequent to Acquisition 321      
Cost amount carried at Close of Period        
Land 4,543      
Buildings and Equipment 16,285      
Total 20,828      
Accumulated Depreciation $ (1,828)      
3600 Weismann Boulevard, San Antonio, TX        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 3,493      
Buildings and Equipment 6,662      
Costs Capitalized Subsequent to Acquisition 3,309      
Cost amount carried at Close of Period        
Land 3,493      
Buildings and Equipment 9,971      
Total 13,464      
Accumulated Depreciation $ (1,714)      
701 Clay Road, Waco, TX        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 2,030      
Buildings and Equipment 8,708      
Costs Capitalized Subsequent to Acquisition 14,479      
Cost amount carried at Close of Period        
Land 2,060      
Buildings and Equipment 23,157      
Total 25,217      
Accumulated Depreciation $ (8,473)      
1800 Novell Place, Provo, UT        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 7,487      
Buildings and Equipment 43,487      
Costs Capitalized Subsequent to Acquisition 11,404      
Cost amount carried at Close of Period        
Land 7,487      
Buildings and Equipment 54,891      
Total 62,378      
Accumulated Depreciation $ (5,233)      
4885-4931 North 300 West, Provo, UT        
Real estate and accumulated depreciation        
Number of Properties | property 2      
Initial Cost to Company        
Land $ 3,915      
Buildings and Equipment 9,429      
Costs Capitalized Subsequent to Acquisition 21      
Cost amount carried at Close of Period        
Land 3,915      
Buildings and Equipment 9,450      
Total 13,365      
Accumulated Depreciation $ (1,113)      
14660, 14672 and 14668 Lee Road, Chantilly, VA        
Real estate and accumulated depreciation        
Number of Properties | property 3      
Initial Cost to Company        
Land $ 6,966      
Buildings and Equipment 74,214      
Costs Capitalized Subsequent to Acquisition 7,567      
Cost amount carried at Close of Period        
Land 6,966      
Buildings and Equipment 81,781      
Total 88,747      
Accumulated Depreciation $ (12,503)      
Enterchange At Meadowville, Chester, VA        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 1,478      
Buildings and Equipment 9,594      
Costs Capitalized Subsequent to Acquisition 1,369      
Cost amount carried at Close of Period        
Land 1,478      
Buildings and Equipment 10,963      
Total 12,441      
Accumulated Depreciation $ (2,367)      
7987 Ashton Avenue, Manassas, VA        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 1,562      
Buildings and Equipment 8,253      
Costs Capitalized Subsequent to Acquisition 1,069      
Cost amount carried at Close of Period        
Land 1,562      
Buildings and Equipment 9,322      
Total 10,884      
Accumulated Depreciation $ (1,628)      
Two Commercial Place, Norfolk, VA        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 4,494      
Buildings and Equipment 21,508      
Costs Capitalized Subsequent to Acquisition 780      
Cost amount carried at Close of Period        
Land 4,494      
Buildings and Equipment 22,288      
Total 26,782      
Accumulated Depreciation $ (2,350)      
1759 Business Center Drive, Reston, VA        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 4,033      
Buildings and Equipment 28,517      
Costs Capitalized Subsequent to Acquisition 1,562      
Cost amount carried at Close of Period        
Land 4,033      
Buildings and Equipment 30,079      
Total 34,112      
Accumulated Depreciation $ (6,349)      
1760 Business Center Drive, Reston, VA        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 5,033      
Buildings and Equipment 50,141      
Costs Capitalized Subsequent to Acquisition 6,251      
Cost amount carried at Close of Period        
Land 5,033      
Buildings and Equipment 56,392      
Total 61,425      
Accumulated Depreciation $ (11,959)      
1775 Wiehle Avenue, Reston, VA        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 4,138      
Buildings and Equipment 26,120      
Costs Capitalized Subsequent to Acquisition 4,552      
Cost amount carried at Close of Period        
Land 4,138      
Buildings and Equipment 30,672      
Total 34,810      
Accumulated Depreciation $ (4,218)      
9201 Forest Hill Avenue, Richmond, VA        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 1,344      
Buildings and Equipment 375      
Costs Capitalized Subsequent to Acquisition 580      
Cost amount carried at Close of Period        
Land 1,344      
Buildings and Equipment 955      
Total 2,299      
Accumulated Depreciation $ (165)      
9960 Mayland Drive, Richmond, VA        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 2,614      
Buildings and Equipment 15,930      
Costs Capitalized Subsequent to Acquisition 3,812      
Cost amount carried at Close of Period        
Land 2,614      
Buildings and Equipment 19,742      
Total 22,356      
Accumulated Depreciation $ (4,402)      
1751 Blue Hills Drive, Roanoke, VA        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 2,689      
Buildings and Equipment 7,761      
Costs Capitalized Subsequent to Acquisition 0      
Cost amount carried at Close of Period        
Land 2,689      
Buildings and Equipment 7,761      
Total 10,450      
Accumulated Depreciation $ (861)      
Atlantic Corporate Park, Sterling, VA        
Real estate and accumulated depreciation        
Number of Properties | property 2      
Initial Cost to Company        
Land $ 5,752      
Buildings and Equipment 29,316      
Costs Capitalized Subsequent to Acquisition 2,885      
Cost amount carried at Close of Period        
Land 5,752      
Buildings and Equipment 32,201      
Total 37,953      
Accumulated Depreciation $ (4,536)      
Orbital Sciences Campus, Sterling, VA        
Real estate and accumulated depreciation        
Number of Properties | property 3      
Initial Cost to Company        
Land $ 12,275      
Buildings and Equipment 19,320      
Costs Capitalized Subsequent to Acquisition 1,876      
Cost amount carried at Close of Period        
Land 12,275      
Buildings and Equipment 21,196      
Total 33,471      
Accumulated Depreciation $ (2,429)      
Sterling Park Business Center, Sterling, VA        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 5,871      
Buildings and Equipment 44,324      
Costs Capitalized Subsequent to Acquisition 109      
Cost amount carried at Close of Period        
Land 5,871      
Buildings and Equipment 44,433      
Total 50,304      
Accumulated Depreciation $ (5,832)      
65 Bowdoin Street, S. Burlington VT        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 700      
Buildings and Equipment 8,416      
Costs Capitalized Subsequent to Acquisition 140      
Cost amount carried at Close of Period        
Land 700      
Buildings and Equipment 8,556      
Total 9,256      
Accumulated Depreciation $ (2,742)      
Stevens Center, Richland, WA        
Real estate and accumulated depreciation        
Number of Properties | property 2      
Initial Cost to Company        
Land $ 3,970      
Buildings and Equipment 17,035      
Costs Capitalized Subsequent to Acquisition 4,737      
Cost amount carried at Close of Period        
Land 4,042      
Buildings and Equipment 21,700      
Total 25,742      
Accumulated Depreciation $ (12,262)      
Unison Elliott Bay-Lab Space, Seattle, WA        
Real estate and accumulated depreciation        
Number of Properties | property 2      
Initial Cost to Company        
Land $ 17,316      
Buildings and Equipment 34,281      
Costs Capitalized Subsequent to Acquisition 49,266      
Cost amount carried at Close of Period        
Land 17,316      
Buildings and Equipment 83,547      
Total 100,863      
Accumulated Depreciation $ (4,180)      
Unison Elliott Bay-Office Space, Seattle, WA        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 9,324      
Buildings and Equipment 18,459      
Costs Capitalized Subsequent to Acquisition 2,122      
Cost amount carried at Close of Period        
Land 9,324      
Buildings and Equipment 20,581      
Total 29,905      
Accumulated Depreciation $ (2,251)      
5353 Yellowstone Road, Cheyenne, WY        
Real estate and accumulated depreciation        
Number of Properties | property 1      
Initial Cost to Company        
Land $ 1,915      
Buildings and Equipment 8,217      
Costs Capitalized Subsequent to Acquisition 2,085      
Cost amount carried at Close of Period        
Land 1,950      
Buildings and Equipment 10,267      
Total 12,217      
Accumulated Depreciation $ (5,872)      
Properties Held for Sale        
Real estate and accumulated depreciation        
Number of Properties | property 3      
Encumbrances $ 0      
Initial Cost to Company        
Land 913      
Buildings and Equipment 1,099      
Costs Capitalized Subsequent to Acquisition 572      
Impairment/ Writedowns 0      
Cost amount carried at Close of Period        
Land 913      
Buildings and Equipment 1,671      
Total 2,584      
Accumulated Depreciation $ (188)      
Properties Held for Sale | Parham Place, Richmond, VA        
Real estate and accumulated depreciation        
Number of Properties | building 3      
Initial Cost to Company        
Land $ 913      
Buildings and Equipment 1,099      
Costs Capitalized Subsequent to Acquisition 572      
Impairment/ Writedowns 0      
Cost amount carried at Close of Period        
Land 913      
Buildings and Equipment 1,671      
Total 2,584      
Accumulated Depreciation $ (188)      
Total Real Estate Assets        
Real estate and accumulated depreciation        
Number of Properties | property 160      
Encumbrances $ 49,917      
Initial Cost to Company        
Land 821,481      
Buildings and Equipment 2,532,652      
Costs Capitalized Subsequent to Acquisition 589,050      
Impairment/ Writedowns (4,525)      
Cost amount carried at Close of Period        
Land 822,151      
Buildings and Equipment 3,116,507      
Total 3,938,658      
Accumulated Depreciation $ (561,646)      
v3.22.4
SCHEDULE III REAL ESTATE AND ACCUMULATED DEPRECIATION - Additional Information (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2022
USD ($)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation Disclosure [Abstract]  
Mortgage debt, net $ 83
Aggregate cost for federal income tax purposes $ 7,360,476
Useful life of buildings and improvements 40 years
Useful life of equipment 7 years
v3.22.4
SCHEDULE III REAL ESTATE AND ACCUMULATED DEPRECIATION - Carrying Amount and Accumulated Depreciation (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Real Estate Properties      
Balance at the beginning of the period $ 3,911,086 $ 3,522,143 $ 3,493,231
Additions 222,951 584,805 122,116
Loss on asset impairment (17,303) (58,696) (2,954)
Disposals (173,841) (72,137) (31,193)
Cost basis adjustment (4,235) (37,239) (3,968)
Reclassification of assets of properties held for sale (2,584) (27,790) (55,089)
Balance at the end of the period 3,936,074 3,911,086 3,522,143
Accumulated Depreciation      
Balance at the beginning of the period 495,912 451,914 387,656
Additions 96,966 92,266 83,828
Loss on asset impairment 0 0 0
Disposals (26,997) (8,675) (13,125)
Cost basis adjustment (4,235) (37,239) (3,968)
Reclassification of assets of properties held for sale (188) (2,354) (2,477)
Balance at the end of the period $ 561,458 $ 495,912 $ 451,914