PUBLIC STORAGE, 10-K filed on 2/20/2024
Annual Report
v3.24.0.1
Cover Page - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Feb. 13, 2024
Jun. 30, 2023
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2023    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 001-33519    
Entity Registrant Name PUBLIC STORAGE    
Entity Incorporation, State or Country Code MD    
Entity Tax Identification Number 93-2834996    
Entity Address, Address Line One 701 Western Avenue    
Entity Address, City or Town Glendale    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 91201-2349    
City Area Code 818    
Local Phone Number 244-8080    
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    
Document Financial Statement Error Correction [Flag] true    
Document Financial Statement Restatement Recovery Analysis [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 43,990,689
Entity Common Stock, Shares Outstanding   175,691,404  
Documents Incorporated by Reference
Portions of the definitive proxy statement to be filed in connection with the Annual Meeting of Shareholders to be held in 2024 are incorporated by reference into Part III of this Annual Report on Form 10-K to the extent described therein.
   
Amendment Flag false    
Document Fiscal Year Focus 2023    
Document Fiscal Period Focus FY    
Entity Central Index Key 0001393311    
Common Shares      
Title of 12(b) Security Common Shares, $0.10 par value    
Trading Symbol PSA    
Security Exchange Name NYSE    
Series F Preferred Stock      
Title of 12(b) Security Depositary Shares Each Representing 1/1,000 of a 5.150% Cum Pref Share, Series F, $0.01 par value    
Trading Symbol PSAPrF    
Security Exchange Name NYSE    
Series G Preferred Stock      
Title of 12(b) Security Depositary Shares Each Representing 1/1,000 of a 5.050% Cum Pref Share, Series G, $0.01 par value    
Trading Symbol PSAPrG    
Security Exchange Name NYSE    
Series H Preferred Stock      
Title of 12(b) Security Depositary Shares Each Representing 1/1,000 of a 5.600% Cum Pref Share, Series H, $0.01 par value    
Trading Symbol PSAPrH    
Security Exchange Name NYSE    
Series I Preferred Stock      
Title of 12(b) Security Depositary Shares Each Representing 1/1,000 of a 4.875% Cum Pref Share, Series I, $0.01 par value    
Trading Symbol PSAPrI    
Security Exchange Name NYSE    
Series J Preferred Stock      
Title of 12(b) Security Depositary Shares Each Representing 1/1,000 of a 4.700% Cum Pref Share, Series J, $0.01 par value    
Trading Symbol PSAPrJ    
Security Exchange Name NYSE    
Series K Preferred Stock      
Title of 12(b) Security Depositary Shares Each Representing 1/1,000 of a 4.750% Cum Pref Share, Series K, $0.01 par value    
Trading Symbol PSAPrK    
Security Exchange Name NYSE    
Series L Preferred Stock      
Title of 12(b) Security Depositary Shares Each Representing 1/1,000 of a 4.625% Cum Pref Share, Series L, $0.01 par value    
Trading Symbol PSAPrL    
Security Exchange Name NYSE    
Series M Preferred Stock      
Title of 12(b) Security Depositary Shares Each Representing 1/1,000 of a 4.125% Cum Pref Share, Series M, $0.01 par value    
Trading Symbol PSAPrM    
Security Exchange Name NYSE    
Series N Preferred Stock      
Title of 12(b) Security Depositary Shares Each Representing 1/1,000 of a 3.875% Cum Pref Share, Series N, $0.01 par value    
Trading Symbol PSAPrN    
Security Exchange Name NYSE    
Series O Preferred Stock      
Title of 12(b) Security Depositary Shares Each Representing 1/1,000 of a 3.900% Cum Pref Share, Series O, $0.01 par value    
Trading Symbol PSAPrO    
Security Exchange Name NYSE    
Series P Preferred Stock      
Title of 12(b) Security Depositary Shares Each Representing 1/1,000 of a 4.000% Cum Pref Share, Series P, $0.01 par value    
Trading Symbol PSAPrP    
Security Exchange Name NYSE    
Series Q Preferred Stock      
Title of 12(b) Security Depositary Shares Each Representing 1/1,000 of a 3.950% Cum Pref Share, Series Q, $0.01 par value    
Trading Symbol PSAPrQ    
Security Exchange Name NYSE    
Series R Preferred Stock      
Title of 12(b) Security Depositary Shares Each Representing 1/1,000 of a 4.000% Cum Pref Share, Series R, $0.01 par value    
Trading Symbol PSAPrR    
Security Exchange Name NYSE    
Series S Preferred Stock      
Title of 12(b) Security Depositary Shares Each Representing 1/1,000 of a 4.100% Cum Pref Share, Series S, $0.01 par value    
Trading Symbol PSAPrS    
Security Exchange Name NYSE    
Notes Due 2032      
Title of 12(b) Security Guarantee of 0.875% Senior Notes due 2032 issued by Public Storage Operating Company    
Trading Symbol PSA/32    
Security Exchange Name NYSE    
Notes Due 2030      
Title of 12(b) Security Guarantee of 0.500% Senior Notes due 2030 issued by Public Storage Operating Company    
Trading Symbol PSA/30    
Security Exchange Name NYSE    
v3.24.0.1
Audit Information
12 Months Ended
Dec. 31, 2023
Audit Information [Abstract]  
Auditor Firm ID 42
Auditor Name Ernst & Young LLP
Auditor Location Los Angeles, California
v3.24.0.1
CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
ASSETS    
Cash and equivalents $ 370,002 $ 775,253
Real estate facilities, at cost:    
Land 5,628,488 5,273,073
Buildings 21,836,750 18,946,053
Real estate facilities, gross 27,465,238 24,219,126
Accumulated depreciation (9,423,974) (8,554,155)
Real estate facilities, net 18,041,264 15,664,971
Construction in process 345,453 372,992
Total real estate facilities 18,386,717 16,037,963
Investments in unconsolidated real estate entities 390,180 275,752
Goodwill and other intangible assets, net 387,267 232,517
Other assets 275,050 230,822
Total assets 19,809,216 17,552,307
LIABILITIES AND EQUITY    
Notes payable 9,103,277 6,870,826
Accrued and other liabilities 598,993 514,680
Total liabilities 9,702,270 7,385,506
Commitments and contingencies (Note 15)
Public Storage shareholders’ equity:    
Preferred Shares, $0.01 par value, 100,000,000 shares authorized, 174,000 shares issued (in series) and outstanding, (174,000 shares at December 31, 2022) at liquidation preference 4,350,000 4,350,000
Common Shares, $0.10 par value, 650,000,000 shares authorized, 175,670,727 shares issued and outstanding (175,265,668 shares at December 31, 2022) 17,567 17,527
Paid-in capital 5,980,760 5,896,423
Accumulated deficit (267,910) (110,231)
Accumulated other comprehensive loss (67,239) (80,317)
Total Public Storage shareholders’ equity 10,013,178 10,073,402
Noncontrolling interests 93,768 93,399
Total equity 10,106,946 10,166,801
Total liabilities and equity $ 19,809,216 $ 17,552,307
v3.24.0.1
CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares
Dec. 31, 2023
Dec. 31, 2022
Statement of Financial Position [Abstract]    
Preferred stock, par value (in USD per share) $ 0.01 $ 0.01
Preferred stock, shares authorized (in shares) 100,000,000 100,000,000
Preferred stock, shares issued (in shares) 174,000 174,000
Preferred stock, shares outstanding (in shares) 174,000 174,000
Common stock, par value (in USD per share) $ 0.10 $ 0.10
Common stock, shares authorized (in shares) 650,000,000 650,000,000
Common stock, shares issued (in shares) 175,670,727 175,265,668
Common stock, shares outstanding (in shares) 175,670,727 175,265,668
v3.24.0.1
CONSOLIDATED STATEMENTS OF INCOME - USD ($)
shares in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Revenues:      
Revenues $ 4,517,690 $ 4,182,163 $ 3,415,824
Expenses:      
Depreciation and amortization 970,056 888,146 713,428
Real estate acquisition and development expense 26,451 28,744 12,923
General and administrative 80,632 71,672 75,966
Interest expense 201,132 136,319 90,774
Operating expenses 2,426,217 2,177,788 1,813,689
Other increases (decreases) to net income:      
Interest and other income 85,590 40,567 12,306
Equity in earnings of unconsolidated real estate entities 27,897 106,981 232,093
Foreign currency exchange (loss) gain (51,197) 98,314 111,787
Gain on sale of real estate 17,178 1,503 13,683
Gain on sale of equity investment in PS Business Parks, Inc. 0 2,128,860 0
Income before income tax expense 2,170,941 4,380,600 1,972,004
Income tax expense (10,821) (14,326) (12,365)
Net income 2,160,120 4,366,274 1,959,639
Allocation to noncontrolling interests (11,793) (17,127) (6,376)
Net income allocable to Public Storage shareholders 2,148,327 4,349,147 1,953,263
Allocation of net income to:      
Preferred shareholders (194,703) (194,390) (186,579)
Preferred shareholders - redemptions (Note 10) 0 0 (28,914)
Restricted share units (4,883) (12,469) (5,326)
Net income allocable to common shareholders $ 1,948,741 $ 4,142,288 $ 1,732,444
Net income per common share:      
Basic (in USD per share) $ 11.11 $ 23.64 $ 9.91
Diluted (in USD per share) $ 11.06 $ 23.50 $ 9.87
Basic weighted average common shares outstanding (in shares) 175,472 175,257 174,858
Diluted weighted average common shares outstanding (in shares) 176,143 176,280 175,568
Self-storage facilities      
Revenues:      
Revenues $ 4,259,613 $ 3,946,028 $ 3,203,566
Expenses:      
Self-storage cost of operations 1,061,950 980,209 852,030
Ancillary operations      
Revenues:      
Revenues 258,077 236,135 212,258
Expenses:      
Ancillary cost of operations $ 85,996 $ 72,698 $ 68,568
v3.24.0.1
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Statement of Comprehensive Income [Abstract]      
Net income $ 2,160,120 $ 4,366,274 $ 1,959,639
Foreign currency translation gain (loss) on investment in Shurgard 13,078 (26,730) (10,186)
Total comprehensive income 2,173,198 4,339,544 1,949,453
Allocation to noncontrolling interests (11,793) (17,127) (6,376)
Comprehensive income allocable to Public Storage shareholders $ 2,161,405 $ 4,322,417 $ 1,943,077
v3.24.0.1
CONSOLIDATED STATEMENTS OF EQUITY AND REDEEMABLE NONCONTROLLING INTERESTS - USD ($)
$ in Thousands
Total
Total Public Storage Shareholders' Equity
Cumulative Preferred Shares
Common Shares
Paid-in Capital
Accumulated Deficit
Accumulated Other Comprehensive Loss
Noncontrolling Interests
Cumulative Preferred Shares
Cumulative Preferred Shares
Total Public Storage Shareholders' Equity
Cumulative Preferred Shares
Cumulative Preferred Shares
Cumulative Preferred Shares
Paid-in Capital
Common Shares
Common Shares
Total Public Storage Shareholders' Equity
Common Shares
Common Shares
Common Shares
Paid-in Capital
Beginning balance at Dec. 31, 2020 $ 8,576,899 $ 8,558,867 $ 3,792,500 $ 17,458 $ 5,707,101 $ (914,791) $ (43,401) $ 18,032                
Increase (Decrease) in Stockholders' Equity [Roll Forward]                                
Issuance of preferred shares                 $ 1,147,455 $ 1,147,455 $ 1,182,500 $ (35,045)        
Redemption and shares called for redemption of preferred shares                 (875,000) (875,000) (875,000)          
Issuance of common shares in connection with share-based compensation 95,860                       $ 95,860 $ 95,860 $ 55 $ 95,805
Share-based compensation expense 54,492 54,492     54,492                      
Acquisition of noncontrolling interests (692) (686)     (686)     (6)                
Contributions by noncontrolling interests 2,451             2,451                
Net income 1,959,639 1,959,639       1,959,639                    
Net income allocated to noncontrolling interests (6,376) (6,376)       (6,376)   (5,906)                
Distributions to:                                
Preferred shareholders (186,579) (186,579)       (186,579)                    
Noncontrolling interests (6,271)             (6,271)                
Common shareholders and restricted share unitholders (1,402,309) (1,402,309)       (1,402,309)                    
Other comprehensive income (loss) (10,186) (10,186)         (10,186)                  
Ending balance at Dec. 31, 2021 9,355,289 9,335,177 4,100,000 17,513 5,821,667 (550,416) (53,587) 20,112                
Beginning balance at Dec. 31, 2020 0                              
Increase (Decrease) in Temporary Equity [Roll Forward]                                
Contributions by noncontrolling interests 68,170                              
Net income allocated to noncontrolling interests 470                              
Noncontrolling interests (391)                              
Ending balance at Dec. 31, 2021 68,249                              
Increase (Decrease) in Stockholders' Equity [Roll Forward]                                
Issuance of preferred shares                 $ 242,832 $ 242,832 $ 250,000 $ (7,168)        
Issuance of common shares in connection with share-based compensation 35,405                       35,405 35,405 29 35,376
Retirement of common shares                         0   (15) 15
Taxes withheld upon net share settlement of restricted share units (16,827) (16,827)     (16,827)                      
Share-based compensation expense 63,360 63,360     63,360                      
Contributions by noncontrolling interests 6,708             6,708                
Reclassification from redeemable noncontrolling interests to noncontrolling interests 83,826             83,826                
Net income 4,366,274 4,366,274       4,366,274                    
Net income allocated to noncontrolling interests (17,127) (17,127)       (17,127)   16,467                
Distributions to:                                
Preferred shareholders (194,390) (194,390)       (194,390)                    
Noncontrolling interests (33,714)             (33,714)                
Common shareholders and restricted share unitholders (3,714,572) (3,714,572)       (3,714,572)                    
Other comprehensive income (loss) (26,730) (26,730)         (26,730)                  
Ending balance at Dec. 31, 2022 10,166,801 10,073,402 4,350,000 17,527 5,896,423 (110,231) (80,317) 93,399                
Increase (Decrease) in Temporary Equity [Roll Forward]                                
Contributions by noncontrolling interests 15,426                              
Reclassification from redeemable noncontrolling interests to noncontrolling interests (83,826)                              
Net income allocated to noncontrolling interests 660                              
Noncontrolling interests (509)                              
Ending balance at Dec. 31, 2022 0                              
Increase (Decrease) in Stockholders' Equity [Roll Forward]                                
Issuance of common shares in connection with share-based compensation 53,386                       $ 53,386 $ 53,386 $ 40 $ 53,346
Taxes withheld upon net share settlement of restricted share units (13,950) (13,950)     (13,950)                      
Share-based compensation expense 44,941 44,941     44,941                      
Contributions by noncontrolling interests 3,203             3,203                
Net income 2,160,120 2,160,120       2,160,120                    
Net income allocated to noncontrolling interests (11,793) (11,793)       (11,793)   11,793                
Distributions to:                                
Preferred shareholders (194,703) (194,703)       (194,703)                    
Noncontrolling interests (14,627)             (14,627)                
Common shareholders and restricted share unitholders (2,111,303) (2,111,303)       (2,111,303)                    
Other comprehensive income (loss) 13,078 13,078         13,078                  
Ending balance at Dec. 31, 2023 10,106,946 $ 10,013,178 $ 4,350,000 $ 17,567 $ 5,980,760 $ (267,910) $ (67,239) $ 93,768                
Ending balance at Dec. 31, 2023 $ 0                              
v3.24.0.1
CONSOLIDATED STATEMENTS OF EQUITY AND REDEEMABLE NONCONTROLLING INTERESTS (Parenthetical) - $ / shares
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Issuance of common shares in connection with share-based compensation (in shares) 283,190 552,713
Distributions to common shareholders and restricted share unitholders (in USD per share) $ 21.15 $ 8.00
Preferred Shares    
Issuance of preferred shares (in shares) 10,000 47,300
Redemption and shares called for redemption of preferred shares (in shares)   35,000
Common Shares    
Issuance of common shares in connection with share-based compensation (in shares) 283,190 552,713
Retirement of common shares (in shares) 151,977  
v3.24.0.1
CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Cash flows from operating activities:      
Net income $ 2,160,120 $ 4,366,274 $ 1,959,639
Adjustments to reconcile net income to net cash flows from operating activities:      
Gain on sale of equity investment in PS Business Parks, Inc. 0 (2,128,860) 0
Gain on sale of real estate (17,178) (1,503) (13,683)
Depreciation and amortization 970,056 888,146 713,428
Equity in earnings of unconsolidated real estate entities (27,897) (106,981) (232,093)
Distributions from cumulative equity in earnings of unconsolidated real estate entities 29,333 134,769 150,488
Unrealized foreign currency exchange loss (gain) 51,239 (97,563) (111,787)
Share-based compensation expense 41,566 56,703 59,815
Other non-cash adjustments 20,508 15,207 4,883
Changes in operating assets and liabilities, excluding the impact of acquisitions:      
Other assets (16,365) (29,638) (44,127)
Accrued and other liabilities 35,266 20,587 56,992
Net cash flows from operating activities 3,246,648 3,117,141 2,543,555
Cash flows from investing activities:      
Capital expenditures to maintain real estate facilities (236,572) (218,713) (136,989)
Capital expenditures for property enhancements (159,939) (189,699) (103,730)
Capital expenditures for energy efficiencies (LED lighting, solar) (64,626) (51,361) (29,519)
Development and expansion of real estate facilities (364,445) (313,511) (281,981)
Acquisition of real estate facilities and intangible assets (473,176) (757,944) (5,047,106)
Acquisition of BREIT Simply Storage LLC, net of cash acquired (2,178,151) 0 0
Distributions in excess of cumulative equity in earnings from unconsolidated real estate entities 10,975 13,670 19,518
Contributions to unconsolidated real estate entities (112,554) 0 0
Proceeds from sale of real estate investments 39,986 1,543 16,296
Proceeds from sale of equity investment in PS Business Parks, Inc. 0 2,636,011 0
Net cash flows (used in) from investing activities (3,538,502) 1,119,996 (5,563,511)
Cash flows from financing activities:      
Issuance costs on amendment of credit facility (8,377) 0 0
Repayments of notes payable (8,259) (513,495) (2,218)
Issuance of notes payable, net of issuance costs 2,181,273 0 5,038,904
Issuance of preferred shares 0 242,832 1,147,455
Issuance of common shares in connection with share-based compensation 53,131 35,271 95,860
Redemption of preferred shares 0 0 (1,175,000)
Taxes paid upon net share settlement of restricted share units (13,950) (16,827) (13,069)
Acquisition of noncontrolling interests 0 0 (692)
Contributions by noncontrolling interests 3,203 1,669 2,451
Distributions paid to preferred shareholders, common shareholders and restricted share unitholders (2,305,322) (3,908,497) (1,588,888)
Distributions paid to noncontrolling interests (14,627) (34,223) (6,662)
Net cash flows (used in) from financing activities (112,928) (4,193,270) 3,498,141
Net cash flows (used in) from operating, investing, and financing activities (404,782) 43,867 478,185
Net effect of foreign exchange impact on cash and equivalents, including restricted cash 0 0 505
Net (decrease) increase in cash and equivalents, including restricted cash (404,782) 43,867 478,690
Cash and equivalents, including restricted cash at beginning of the period:      
Cash and equivalents 775,253 734,599 257,560
Restricted cash included in other assets 29,904 26,691 25,040
Cash, equivalents, and restricted cash 805,157 761,290 282,600
Cash and equivalents, including restricted cash at end of the period:      
Cash and equivalents 370,002 775,253 734,599
Restricted cash included in other assets 30,373 29,904 26,691
Cash, equivalents, and restricted cash 400,375 805,157 761,290
Costs incurred during the period remaining unpaid at period end for:      
Capital expenditures to maintain real estate facilities (10,798) (9,903) (10,879)
Capital expenditures for property enhancements (3,046) (4,502) (11,726)
Capital expenditures for energy efficiencies (LED lighting, solar) (386) (855) (775)
Construction or expansion of real estate facilities (68,099) (65,650) (50,051)
Real estate acquired in exchange for noncontrolling interests 0 (19,865) (68,170)
Supplemental cash flow information:      
Cash paid for interest, net of amounts capitalized 146,213 127,711 74,192
Cash paid for income taxes, net of refunds $ 11,056 $ 11,293 $ 12,696
v3.24.0.1
Description of the Business
12 Months Ended
Dec. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Description of the Business Description of the Business
Public Storage (referred to herein as “the Company,” “we,” “us,” or “our”) is a Maryland real estate investment trust (“REIT”) engaged in the ownership and operation of self-storage facilities that offer storage spaces for lease, generally on a month-to-month basis, for personal and business use, ancillary activities such as tenant reinsurance, merchandise sales, and third party management, as well as the acquisition and development of additional self-storage space.
On August 14, 2023, the Company completed a reorganization in which its interest in its facilities is now held through an operating partnership, Public Storage OP, L.P. (“PSA OP”) and its subsidiaries including Public Storage Operating Company (“PSOC”), formerly known as Public Storage. This structure is commonly referred to as an umbrella partnership REIT, or UPREIT. The reorganization was accounted for as a transaction between entities under common control and there was no change in the Company’s total assets, liabilities or results of operations. Subsequent to the reorganization, the primary assets of the parent entity, Public Storage, are general partner and limited partner interests in PSA OP, which holds all of the Company’s assets through its ownership of all of the membership interests in PSOC. As of December 31, 2023, the Company owned all of the limited partnership interests of PSA OP.
At December 31, 2023, we owned equity interests in 3,044 self-storage facilities (with approximately 218.1 million net rentable square feet) located in 40 states in the United States (“U.S.”) operating under the Public Storage® name, and 1.2 million net rentable square feet of commercial and retail space. In addition, we managed 210 facilities for third parties at December 31, 2023.
At December 31, 2023, we owned a 35% common equity interest in Shurgard Self Storage Limited (“Shurgard”), a public company traded on the Euronext Brussels under the “SHUR” symbol, which owned 275 self-storage facilities (with approximately 15 million net rentable square feet) located in seven Western European countries, all operating under the Shurgard® name.
v3.24.0.1
Basis of Presentation and Summary of Significant Accounting Policies
12 Months Ended
Dec. 31, 2023
Accounting Policies [Abstract]  
Basis of Presentation and Summary of Significant Accounting Policies Basis of Presentation and Summary of Significant Accounting Policies
Basis of Presentation
We have prepared the accompanying consolidated financial statements in accordance with U.S. generally accepted accounting principles (“GAAP”) as set forth in the Accounting Standards Codification of the Financial Accounting Standards Board, and in conformity with the rules and regulations of the Securities and Exchange Commission (“SEC”).
We revised our prior period financial statements to correct the presentation of income tax expense in the Consolidated Statements of Income. Income tax expense in the amounts of $14.3 million and $12.4 million for 2022 and 2021, respectively, previously included in general and administrative expense, has been reclassified and presented separately in the Consolidated Statements of Income to conform to the 2023 presentation. This immaterial correction had no impact on our net income. The correction also had no impact on our balance sheet, statements of comprehensive income, statements of equity, or cash flows as of and for the years ended December 31, 2022 and 2021.
Certain amounts previously reported in our 2022 and 2021 Consolidated Statements of Income have been reclassified to conform to the 2023 presentation, with respect to the separate presentation of real estate acquisition and development expense in the amounts of $28.7 million and $12.9 million for 2022 and 2021, respectively, previously included in general and administrative expense. The reclassifications had no impact on our net income.
Certain amounts previously reported in our 2022 and 2021 Statements of Cash Flows have been reclassified to conform to the 2023 presentation, with respect to the separate presentation of changes in operating assets and liabilities in the cash flows from operating activities section and major types of capital expenditures in the cash flows from investing activities section. The reclassifications did not affect the subtotals for cash flows from operating, investing or financing activities.
Disclosures of the number and square footage of facilities, as well as the number and coverage of tenant reinsurance policies (Note 15) are unaudited and outside the scope of our independent registered public accounting firm’s audit of our financial statements in accordance with the standards of the Public Company Accounting Oversight Board (U.S.).
Summary of Significant Accounting Policies
Consolidation and Equity Method of Accounting
We consider entities to be Variable Interest Entities (“VIEs”) when they have insufficient equity to finance their activities without additional subordinated financial support provided by other parties, or the equity holders as a group do not have a controlling financial interest. In addition, we have general partner interests in limited partnerships along with third-party investors to develop, construct or operate self-storage facilities. As the general partner, we consider the limited partnerships to be VIEs if the limited partners lack both substantive participating rights and substantive kick-out rights. We consolidate VIEs when we have (i) the power to direct the activities most significantly impacting economic performance, and (ii) either the obligation to absorb losses or the right to receive benefits from the VIE. PSA OP met the definition of a VIE and is consolidated by the Company as the primary beneficiary of PSA OP. All of the assets and liabilities of the Company are held by PSA OP. The total assets, primarily real estate assets, and the total liabilities of our other consolidated VIEs are not material as of December 31, 2023. We consolidate all other entities when we control them through voting shares or contractual rights. We refer to the entities we consolidate, for the period in which the reference applies, collectively as the “Subsidiaries,” and we eliminate intercompany transactions and balances.
We account for our investments in entities that we do not consolidate but over which we have significant influence using the equity method of accounting. We refer to these entities, for the periods in which the reference applies, collectively as the “Unconsolidated Real Estate Entities,” and we eliminate intra-entity profits and losses and amortize any differences between the cost of our investment and the underlying equity in net assets against equity in earnings as if the Unconsolidated Real Estate Entity were a consolidated subsidiary.
Equity in earnings of unconsolidated real estate entities presented on our income statements represents our pro-rata share of the earnings of the Unconsolidated Real Estate Entities. The dividends we receive from the Unconsolidated Real Estate Entities are reflected on our consolidated statements of cash flows as “distributions from cumulative equity in earnings of unconsolidated real estate entities” to the extent of our cumulative equity in earnings, with any excess classified as “distributions in excess of cumulative equity in earnings from unconsolidated real estate entities.”
Use of Estimates
The preparation of consolidated financial statements and accompanying notes in conformity with GAAP requires us to make estimates and assumptions that affect the amounts reported. Actual results could differ from those estimates and assumptions.
Cash Equivalents and Restricted Cash
Cash equivalents represent highly liquid financial instruments that mature within three months of acquisition such as money market funds with a rating of at least AAA by Standard & Poor’s, commercial paper that is rated A1 by Standard & Poor’s or deposits with highly rated commercial banks. Restricted cash, which represent amounts used to collateralize our insurance obligations and are restricted from general corporate use, are included in other assets.
Fair Value
As used herein, the term “fair value” is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. In the absence of active markets for identical assets or liabilities, such measurements involve developing assumptions based on market observable data and, in the absence of such data, internal information that is consistent with what market participants would use in a hypothetical transaction that occurs at the balance sheet date.
Assets and liabilities recorded at fair value are measured and classified in accordance with a three-tier fair value hierarchy based on the observability of the inputs available in the market used to measure fair value:
Level 1 Quoted prices in active markets for identical assets or liabilities at the measurement date.
Level 2 Significant observable inputs other than Level 1, that are observable for the asset or liability, either directly or indirectly through corroboration with observable market data.
Level 3 Unobservable inputs that are supported by little or no market data for the related assets or liabilities.
The categorization of a financial instrument within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement.
Our financial instruments consist of cash and cash equivalents, restricted cash, other assets, other liabilities, and notes payable. Cash equivalents, restricted cash, other assets and other liabilities are stated at book value, which approximates fair value as of the balance sheet date due to the short time period to maturity.
We estimate and disclose the fair value of our notes payable using Level 2 inputs by discounting the related future cash flows at a rate based upon quoted interest rates for securities that have similar characteristics such as credit quality and time to maturity.
We use significant judgment to estimate fair values of real estate facilities, goodwill, and other intangible assets for the purposes of purchase price allocation or impairment analysis. In estimating their values, we consider Level 3 inputs such as market prices of land, market capitalization rates, expected returns, earnings multiples, projected levels of earnings, costs of construction, and functional depreciation.
Real Estate Facilities
We record real estate facilities at cost. We capitalize all costs incurred to acquire, develop, construct, renovate and improve facilities as part of major repair and maintenance programs, including interest and property taxes incurred during the construction period. We expense the costs of demolition of existing facilities associated with a renovation as incurred. We allocate the net acquisition cost of acquired real estate facilities to the underlying land, buildings, and identified intangible assets based upon their respective individual estimated fair values.
We expense costs associated with dispositions of real estate, as well as routine repairs and maintenance costs, as incurred. We depreciate buildings and improvements on a straight-line basis over estimated useful lives ranging generally between 5 to 25 years.
When we sell a full or partial interest in a real estate facility without retaining a controlling interest following sale, we recognize a gain or loss on sale as if 100% of the property was sold at fair value. If we retain a controlling interest following the sale, we record a noncontrolling interest for the book value of the partial interest sold, and recognize additional paid-in capital for the difference between the consideration received and the partial interest at book value.
Goodwill and Other Intangible Assets
Intangible assets consist of goodwill, the Shurgard® trade name, which Shurgard uses pursuant to a fee-based licensing agreement, and finite-lived assets. Goodwill and the Shurgard® trade name have indefinite lives and are not amortized. Our finite-lived assets consist primarily of (i) acquired customers in place amortized relative to the benefit of the customers in place, with such amortization reflected as depreciation and amortization expense on our income statement, (ii) property tax abatements acquired and amortized relative to the reduction in property tax paid, with such amortization reflected as self-storage cost of operations on our income statement and (iii) acquired non real estate-related contracts, with such amortization reflected as depreciation and amortization expense on our income statement.
Evaluation of Asset Impairment
We evaluate our real estate and finite-lived intangible assets for impairment each quarter. If there are indicators of impairment and we determine that the asset is not recoverable from future undiscounted cash flows to be received through the asset’s remaining life (or, if earlier, the expected disposal date), we record an impairment charge to the extent the carrying amount exceeds the asset’s estimated fair value or net proceeds from expected disposal.
We evaluate our investments in unconsolidated real estate entities for impairment quarterly. We record an impairment charge to the extent the carrying amount exceeds estimated fair value, when we believe any such shortfall is other than temporary.
We evaluate goodwill for impairment annually and whenever relevant events, circumstances, and other related factors indicate that it is more likely than not that the fair value of the related reporting unit is less than the carrying amount. When we conclude that it is not more likely than not that the fair value of the reporting unit is less than the aggregate carrying amount, no impairment charge is recorded and no further analysis is performed. Otherwise, we record an impairment charge to the extent the carrying amount of the goodwill exceeds the amount that would be allocated to goodwill if the reporting unit were acquired for estimated fair value.
We evaluate other indefinite-lived intangible assets, such as the Shurgard® trade name for impairment at least annually and whenever relevant events, circumstances and other related factors indicate that it is more likely than not that the asset is impaired. When we conclude that it is not more likely than not that the asset is impaired, we do not record an impairment charge and no further analysis is performed. Otherwise, we record an impairment charge to the extent the carrying amount exceeds the asset’s estimated fair value.
No impairments were recorded in any of our evaluations for any period presented herein.
Revenue and Expense Recognition
We recognize revenues from self-storage facilities, which primarily comprise rental income earned pursuant to month-to-month leases, as well as associated late charges and administrative fees, as earned. Promotional discounts reduce rental income over the promotional period, which is generally one month. We recognize ancillary revenues when earned.
We accrue for property tax expense based upon actual amounts billed and, in some circumstances, estimates when bills or assessments have not been received from the taxing authorities. If these estimates are incorrect, the timing and amount of expense recognition could be incorrect. We expense cost of operations (including advertising expenditures), general and administrative expense, and interest expense as incurred.
Foreign Currency Exchange Translation
The local currency (primarily the Euro) is the functional currency for our interests in foreign operations. The related balance sheet amounts are translated into U.S. Dollars at the exchange rates at the respective financial statement date, while amounts on our consolidated statements of income are translated at the average exchange rates during the respective period. Cumulative translation adjustments, are included in equity as a component of accumulated other comprehensive income (loss).
When financial instruments denominated in a currency other than the U.S. Dollar are expected to be settled in cash in the foreseeable future, the impact of changes in the U.S. Dollar equivalent are reflected in current earnings.
At December 31, 2023, due primarily to our investment in Shurgard (Note 5) and our notes payable denominated in Euros (Note 8), our operating results and financial position are affected by fluctuations in currency exchange rates between the Euro, and to a lesser extent, other European currencies, against the U.S. Dollar. The Euro was translated at exchange rates of approximately 1.104 U.S. Dollars per Euro at December 31, 2023 (1.070 at December 31, 2022), and average exchange rates of 1.081, 1.054 and 1.183 for the years ended December 31, 2023, 2022, and 2021, respectively.
Income Taxes
We and a subsidiary of PSOC have elected to be treated as a REIT, as defined in the Internal Revenue Code of 1986, as amended (the “Code”). For each taxable year in which we qualify for taxation as a REIT, we will not be subject to U.S. federal corporate income tax on our “REIT taxable income” (generally, taxable income subject to specified adjustments, including a deduction for dividends paid and excluding our net capital gain) that is distributed to our shareholders. We believe we have met these REIT requirements for all periods presented herein. Accordingly, we have recorded no U.S. federal corporate income tax expense related to our REIT taxable income.
We have elected taxable REIT subsidiary (“TRS”) status for some of our consolidated subsidiaries. Our tenant reinsurance, merchandise, and third party management operations are conducted under these TRSs and are subject to federal corporate income tax. For these entities, deferred tax assets and liabilities for temporary differences are recognized based on the future tax consequences attributable to differences that exist between the financial statement carrying amounts of assets and liabilities and their respective tax bases, as well as tax attributes such as operating loss, capital loss and tax credits carryforwards on a taxing jurisdiction basis. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the year in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. Valuation allowances are established when necessary to reduce deferred tax assets to the amounts that are expected more likely than not to be realized in the future.
We recognize tax benefits of uncertain income tax positions only if we believe it is more likely than not that the position would ultimately be sustained assuming the relevant taxing authorities had full knowledge of the relevant facts and circumstances of our positions. As of December 31, 2023, we had no tax benefits that were not recognized.
We also incur income taxes in certain state and local jurisdictions, which are included in income tax expense in the Consolidated Statements of Income.
Share-Based Compensation
We generally estimate the fair value of share-based payment awards on the date of grant. We determine the fair value of restricted share units (“RSUs”) with no market conditions based on the closing market price of the Company’s common shares on the date of grant. We value stock options with no market conditions at the grant date using the Black-Scholes option-pricing model. We value stock options and RSUs with market conditions at the grant date using a Monte-Carlo valuation simulation. Our determination of the fair value of share-based payment awards on the date of grant using an option-pricing model or Monte-Carlo valuation simulation is affected by our stock price as well as assumptions regarding a number of subjective and complex variables. These variables include, but are not limited to, our expected stock price volatility over the expected term of the awards. For stock options, variables also include actual and projected stock option exercise behaviors. For restricted share units and stock options with performance conditions, we adjust compensation cost each quarter as needed for any changes in the assessment of the probability that the specified performance criteria will be achieved.
We amortize the grant-date fair value of awards as compensation expense over the service period, which begins on the grant date and ends on the expected vesting date. For awards that are earned solely upon the passage of time and continued service, the entire cost of the award is amortized on a straight-line basis over the service period. For awards with market and/or performance conditions, the individual cost of each vesting is amortized separately over each individual service period (the “accelerated attribution” method). For awards with performance conditions, the estimated number of stock awards that will ultimately vest requires judgment, and to the extent actual results or updated estimates differ from our current estimates, such amounts will be recorded as a cumulative adjustment in the period estimates are revised. In amortizing share-based compensation expense, we do not estimate future forfeitures. Instead, we reverse previously amortized share-based compensation expense with respect to grants that are forfeited in the period the employee terminates employment.
Our share-based compensation plans allow immediate vesting of outstanding unvested awards upon retirement (“Retirement Acceleration”) for employees who meet certain conditions. We accelerate amortization of compensation expense for each grant by changing the end of the service period from the original vesting date to the date an employee is expected to be eligible for Retirement Acceleration, if earlier.
Recent Accounting Pronouncements Not Yet Adopted
In November 2023, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosure, to require a public entity to disclose significant segment expenses and other segment items on an annual and interim basis and to provide in interim periods all disclosures about a reportable segment’s profit or loss and assets that are currently required annually. Public entities with a single reportable segment are required to provide the new disclosures and all the disclosures required under ASC 280. The guidance is effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024, on a retrospective basis. Early adoption is permitted. We are currently evaluating the impact of this ASU on our Consolidated Financial Statements and related disclosures.
In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, to enhance the transparency and decision-usefulness of income tax disclosures, particularly in the rate reconciliation table and disclosures about income taxes paid. The ASU’s amendments are effective for annual periods beginning after December 15, 2024 on a prospective basis. Early adoption is permitted. We are currently evaluating the impact of this ASU on our Consolidated Financial Statements and related disclosures.
v3.24.0.1
Simply Acquisition
12 Months Ended
Dec. 31, 2023
Business Combination and Asset Acquisition [Abstract]  
Simply Acquisition Simply Acquisition
On September 13, 2023, we acquired all the membership interests of BREIT Simply Storage LLC, a self-storage company that owns and operates 127 self-storage facilities (9.4 million net rentable square feet) and manages 25 self-storage facilities for third parties, for a purchase price of $2.2 billion in cash, including cash acquired of $6.0 million and direct transaction costs of $9.6 million (the “Simply Acquisition”).
We accounted for the Simply Acquisition as an asset acquisition because substantially all the fair value of the gross assets acquired is concentrated in the real estate assets and intangible assets associated with the self-storage facilities, which are determined to be similar in nature. As a result, the direct transaction costs of $9.6 million were capitalized to the basis of the acquired properties.
The total purchase price was allocated to the individual assets acquired and liabilities assumed based on their relative fair values. The total purchase price, including direct transaction costs, was allocated as follows (in thousands):
Cash
$6,032 
Real estate facilities:
Land229,396 
Buildings1,762,752 
Construction in process
2,922 
Intangible assets:
Acquired customers in place209,516 
Non real estate-related contracts
4,750 
Other assets
12,046 
Accrued and other liabilities
(43,231)
Total purchase price, including direct transaction costs$2,184,183 
v3.24.0.1
Real Estate Facilities
12 Months Ended
Dec. 31, 2023
Real Estate [Abstract]  
Real Estate Facilities Real Estate Facilities
Activity in real estate facilities during 2023, 2022, and 2021 is as follows:
For the Years Ended December 31,
 202320222021
 (Amounts in thousands)
Operating facilities, at cost:
Beginning balance $24,219,126 $22,807,833 $17,372,627 
Capital expenditures to maintain real estate facilities232,048 205,169 137,428 
Capital expenditures for property enhancements163,380 194,931 116,478 
Capital expenditures for energy efficiencies (LED lighting, solar)65,026 52,216 30,294 
Acquisitions 2,442,118 733,442 4,940,413 
Dispositions and other(19,322)(1,704)(7,408)
Developed or expanded facilities opened for operation362,862 227,239 218,001 
Ending balance 27,465,238 24,219,126 22,807,833 
Accumulated depreciation:
Beginning balance (8,554,155)(7,773,308)(7,152,135)
Depreciation expense (881,255)(781,931)(625,968)
Dispositions and other11,436 1,084 4,795 
Ending balance (9,423,974)(8,554,155)(7,773,308)
Construction in process:
Beginning balance 372,992 272,471 188,079 
Costs incurred to develop and expand real estate facilities356,788 336,948 302,393 
Acquisitions 2,922 — — 
Write-off of cancelled projects and transfer to other assets(24,387)(9,188)— 
Developed or expanded facilities opened for operation(362,862)(227,239)(218,001)
Ending balance 345,453 372,992 272,471 
Total real estate facilities at December 31,
$18,386,717 $16,037,963 $15,306,996 
During 2023, in addition to the Simply Acquisition, we acquired 37 self-storage facilities (2.7 million net rentable square feet of storage space), for a total cost of $473.2 million in cash. Approximately $23.2 million of the total cost was allocated to intangible assets. We completed development and redevelopment activities costing $362.9 million during 2023, adding 1.7 million net rentable square feet of self-storage space. Construction in process at December 31, 2023 consisted of projects to develop new self-storage facilities and expand existing self-storage facilities. During 2023, we wrote off $11.7 million of accumulated development costs for cancelled development and redevelopment projects in construction in process as real estate acquisition and development expense. We also transferred $12.7 million of land cost related to cancelled development projects to other assets at December 31, 2023.
During 2023, we completed a real estate transaction with a third-party, through which we sold an operating self-storage facility with a net book value of $7.1 million for gross proceeds of $40.0 million and acquired a nearby land parcel for $13.5 million. At the close of the transaction, we entered into a leaseback of the self-storage facility until we complete development of the acquired land into a self-storage facility, no later than December 31, 2026. Of the $40.0 million in gross proceeds, $24.3 million was allocated to the sale of the property based on its estimated fair value, resulting a net gain on sale of real estate of $17.1 million after direct transaction costs, and $15.7 million was classified as a reduction of costs to develop the acquired land included in construction in process.
During 2023, we also sold a land parcel for $0.1 million in cash and recorded a related gain on sale of real estate of $0.1 million.
During 2022, we acquired 74 self-storage facilities (4.7 million net rentable square feet of storage space), for a total cost of $730.5 million, consisting of $710.6 million in cash and $19.9 million in partnership units in one of our subsidiaries. Approximately $24.1 million of the total cost was allocated to intangible assets. We completed development and redevelopment activities costing $227.2 million during 2022, adding 1.4 million net rentable square feet of self-storage space. Construction in process at December 31, 2022 consisted of projects to develop new self-storage facilities and expand existing self-storage facilities. During 2022, we wrote off $7.0 million of accumulated development costs for cancelled development and redevelopment projects in construction in process as real estate acquisition and development expense. We also transferred $2.2 million of land cost related to a cancelled development project to other assets at December 31, 2022.
Additionally, on July 8, 2022, we acquired from PS Business Parks, Inc. (“PSB”) the commercial interests in five properties at three sites jointly occupied with certain of our self-storage facilities located in Maryland and Virginia, for $47.3 million. We recognized $27.0 million of real estate assets and $0.7 million of intangibles for the properties acquired, representing the cost of these commercial properties that we did not have interest in through our equity investment in PSB. We recognized the remaining $19.6 million as an increase to our basis in our equity investment in PSB, which represents the elimination of our portion of the gain recorded by PSB.
During 2022, we sold portions of real estate facilities in connection with eminent domain proceedings for $1.5 million in cash proceeds and recorded a related gain on sale of real estate of approximately $1.5 million.
During 2021, we acquired 232 self-storage facilities (21.8 million net rentable square feet of storage space), for a total cost of $5.1 billion, consisting of $5.0 billion in cash and $68.2 million in partnership units in one of our subsidiaries. Approximately $174.9 million of the total cost was allocated to intangible assets. We completed development and redevelopment activities costing $218.0 million during 2021, adding 1.6 million net rentable square feet of self-storage space. During 2021, we sold portions of real estate facilities in connection with eminent domain proceedings for $16.3 million in cash proceeds and recorded a related gain on sale of real estate of approximately $13.7 million.
At December 31, 2023, the adjusted basis of real estate facilities for U.S. federal tax purposes was approximately $18.3 billion (unaudited).
v3.24.0.1
Investments in Unconsolidated Real Estate Entities
12 Months Ended
Dec. 31, 2023
Equity Method Investments and Joint Ventures [Abstract]  
Investments in Unconsolidated Real Estate Entities Investments in Unconsolidated Real Estate Entities
The following table sets forth our equity in earnings of the Unconsolidated Real Estate Entities (amounts in thousands):
Equity in Earnings of Unconsolidated Real Estate Entities for the
Year Ended December 31,
202320222021
Shurgard$27,897$26,385$24,371
PSB 80,596207,722
Total $27,897$106,981$232,093
Investment in Shurgard
Our investment in Shurgard was $390.2 million and $275.8 million as of December 31, 2023 and December 31, 2022, respectively.
Throughout all periods presented, we had a 35% equity interest in Shurgard. On November 14, 2023, Shurgard issued 8,163,265 new common shares to institutional investors. Public Storage participated on a pro-rata basis in the offering and acquired 2,863,674 common shares for a cost of $112.6 million, maintaining our 35% equity interest in Shurgard. As a result of the offering, Shurgard common shares that we effectively owned increased from 31,268,459 as of December 31, 2022 to 34,132,133 as of December 31, 2023.
Based upon the closing price at December 31, 2023 (€44.86 per share of Shurgard common stock, at 1.104 exchange rate of U.S. Dollars to the Euro), the shares we owned had a market value of approximately $1.7 billion.
Our equity in earnings of Shurgard comprised our equity share of Shurgard’s net income, less amortization of the Shurgard Basis Differential (defined below). During 2023, 2022, and 2021, we received $3.8 million, $3.5 million, and $3.5 million of trademark license fees that Shurgard pays to us for the use of the Shurgard® trademark, respectively. We eliminated $1.3 million, $1.2 million, and $1.2 million of intra-entity profits and losses for 2023, 2022, and 2021, respectively, representing our equity share of the trademark license fees. We classify the remaining license fees we receive from Shurgard as interest and other income on our income statement.
During 2023, 2022, and 2021, we received cash dividend distributions from Shurgard totaling $39.0 million, $37.8 million, and $41.5 million, respectively. Approximately $11.0 million, $13.7 million, and $19.5 million of total cash distributions from Shurgard during the year ended 2023, 2022, and 2021, respectively, represented distributions in excess of cumulative equity in earnings from Shurgard, which was classified within cash flows from investing activities in the Consolidated Statements of Cash Flows.
At December 31, 2023, our investment in Shurgard’s real estate assets exceeded our pro-rata share of the underlying amounts on Shurgard’s balance sheet by approximately $63.7 million ($67.8 million at December 31, 2022). This differential (the “Shurgard Basis Differential”) includes our basis adjustments in Shurgard’s real estate assets net of related deferred income taxes. The Shurgard Basis Differential is being amortized as a reduction to equity in earnings of the Unconsolidated Real Estate Entities. Such amortization totaled approximately $4.1 million, $6.9 million, and $8.4 million during 2023, 2022, and 2021, respectively.
As of December 31, 2023, 2022, and 2021, we translated the book value of our investment in Shurgard from Euro to U.S. Dollars and recorded $13.1 million other comprehensive gain, $26.7 million other comprehensive loss, and $10.2 million other comprehensive loss, respectively.
Investment in PSB
On July 20, 2022, in connection with the closing of the merger of PS Business Parks, Inc. (“PSB”) with affiliates of Blackstone Real Estate (“Blackstone”), we completed the sale of our 41% common equity interest in PSB in its entirety. At the close of the merger transaction, we received a total of $2.7 billion of cash proceeds and recognized a gain of $2.1 billion during the third quarter of 2022.
During 2022 and 2021, we received cash distributions from PSB totaling $109.5 million and $127.3 million, respectively, which were classified within cash flows from operating activities in the Consolidated Statements of Cash flows. Since the sale of PSB in July 2022, we no longer recognize equity in earnings or receive cash distributions from PSB.
Summarized financial information of PSB
The following table represents summarized financial information for PSB derived from its reported financial statements prepared under US GAAP before our basis difference adjustments for the years ended December 31, 2022 and 2021 (amounts in thousands). Due to the complete sale of our equity investment in PSB in July 2022, the summarized financial information for 2022 includes PSB's financial activities through June 30, 2022, which represents the most practical date of such reported information prior to the transaction. Summarized financial information for Shurgard is excluded in the table below.
Year Ended December 31,
20222021
Revenues$223,750$438,703
Costs of operations 66,701130,896
Operating income88,702195,264
Gain on sale of real estate118,801359,875
Net Income208,665553,029
v3.24.0.1
Goodwill and Other Intangible Assets
12 Months Ended
Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Other Intangible Assets Goodwill and Other Intangible Assets
Goodwill and other intangible assets consisted of the following (amounts in thousands):
At December 31, 2023At December 31, 2022
Gross Book ValueAccumulated AmortizationNet Book ValueGross Book ValueAccumulated AmortizationNet Book Value
Goodwill$165,843 $— $165,843 $165,843 $— $165,843 
Shurgard® Trade Name18,824 — 18,824 18,824 — 18,824 
Finite-lived intangible assets, subject to amortization995,578 (792,978)202,600 758,106 (710,256)47,850 
Total goodwill and other intangible assets$1,180,245 $(792,978)$387,267 $942,773 $(710,256)$232,517 
Finite-lived intangible assets consist primarily of acquired customers in place. Amortization expense related to intangible assets subject to amortization was $82.7 million, $95.2 million and $76.6 million in 2023, 2022, and 2021, respectively. During 2023, 2022, and 2021, intangibles increased $237.5 million, $24.8 million, and $174.9 million, respectively, in connection with the Simply Acquisition (Note 3) and the acquisition of real estate facilities (Note 4).
The remaining amortization expense will be recognized over a weighted average life of approximately 1.2 years. The estimated future amortization expense for our finite-lived intangible assets at December 31, 2023 is as follows (amounts in thousands):
YearAmount
2024$116,338 
202560,467 
202619,129 
20272,797 
2028377 
Thereafter3,492 
Total$202,600 
v3.24.0.1
Credit Facility
12 Months Ended
Dec. 31, 2023
Line of Credit Facility [Abstract]  
Credit Facility Credit Facility
On June 12, 2023, PSOC entered into an amended revolving credit agreement (the “Credit Facility”), which increased our borrowing limit from $500 million to $1.5 billion and extended the maturity date from April 19, 2024 to June 12, 2027. We have the option to further extend the maturity date by up to one additional year with additional extension fees up to 0.125% of the extended commitment amount. Amounts drawn on the Credit Facility bear annual interest at rates ranging from SOFR plus 0.65% to SOFR plus 1.40% depending upon our credit rating (SOFR plus 0.70% at December 31, 2023). We are also required to pay a quarterly facility fee ranging from 0.10% per annum to 0.30% per annum depending upon our credit rating (0.10% per annum at December 31, 2023). At December 31, 2023 and February 20, 2024, we had no outstanding borrowings under this Credit Facility. We had undrawn standby letters of credit, which reduce our borrowing capacity, totaling $14.6 million at December 31, 2023 ($18.6 million at December 31, 2022 under the previous credit facility). The Credit Facility has various customary restrictive covenants with which we were in compliance at December 31, 2023. We incurred a total of $8.4 million of issuance costs associated with the amended Credit Facility, which is classified as Other Assets on the Consolidated Balance Sheets and will be amortized as Interest Expense on the Consolidated Statement of Income through June 12, 2027.
Public Storage has provided a full and unconditional guarantee of PSOC’s obligations under the Credit Facility.
v3.24.0.1
Notes Payable
12 Months Ended
Dec. 31, 2023
Notes Payable [Abstract]  
Notes Payable Notes Payable
Our notes payable (all of which were issued by PSOC), are reflected net of issuance costs (including original issue discounts), which are amortized as interest expense on the effective interest method over the term of each respective note. Our notes payable at December 31, 2023 and December 31, 2022 are set forth in the tables below:
   
Amounts at December 31, 2023
Amounts at
 December 31, 2022
 Coupon RateEffective Rate PrincipalUnamortized CostsBook
 Value
Fair
 Value
Book
 Value
Fair
 Value
   ($ amounts in thousands)
U.S. Dollar Denominated Unsecured Debt
Notes due April 23, 2024
SOFR+0.47%
5.831%$700,000 $(221)$699,779 $700,031 $699,075 $691,309 
Notes due July 25, 2025
SOFR+0.60%
5.961%400,000 (1,278)398,722 400,295 — — 
Notes due February 15, 2026
0.875%1.030%500,000 (1,581)498,419 462,362 497,678 441,849 
Notes due November 9, 20261.500%1.640%650,000 (2,487)647,513 597,131 646,643 578,899 
Notes due September 15, 2027
3.094%3.218%500,000 (1,964)498,036 476,394 497,508 466,029 
Notes due May 1, 2028
1.850%1.962%650,000 (2,922)647,078 584,520 646,401 558,197 
Notes due November 9, 20281.950%2.044%550,000 (2,337)547,663 490,758 547,182 468,509 
Notes due January 15, 20295.125%5.260%500,000 (2,947)497,053 516,899 — — 
Notes due May 1, 2029
3.385%3.459%500,000 (1,637)498,363 477,692 498,053 456,855 
Notes due May 1, 2031
2.300%2.419%650,000 (5,012)644,988 562,240 644,303 530,390 
Notes due November 9, 20312.250%2.322%550,000 (2,782)547,218 469,845 546,866 443,514 
Notes due August 1, 20335.100%5.207%700,000 (5,552)694,448 725,753 — — 
Notes due August 1, 20535.350%5.442%600,000 (7,983)592,017 628,413 — — 
 7,450,000 (38,703)7,411,297 7,092,333 5,223,709 4,635,551 
Euro Denominated Unsecured Debt
Notes due April 12, 2024
1.540%1.540%110,372 — 110,372 109,380 107,035 104,344 
Notes due November 3, 2025
2.175%2.175%267,116 — 267,116 261,083 259,039 246,119 
Notes due September 9, 20300.500%0.640%772,607 (7,488)765,119 638,177 740,634 566,204 
Notes due January 24, 2032
0.875%0.978%551,862 (4,322)547,540 455,895 530,317 396,297 
   1,701,957 (11,810)1,690,147 1,464,535 1,637,025 1,312,964 
 Mortgage Debt, secured by 2 real estate facilities with a net book value of $11.7 million
4.398%4.398%1,833 — 1,833 1,733 10,092 9,568 
 $9,153,790 $(50,513)$9,103,277 $8,558,601 $6,870,826 $5,958,083 

Public Storage has provided a full and unconditional guarantee of PSOC’s obligations under each series of unsecured notes.
U.S. Dollar Denominated Unsecured Notes
On July 26, 2023, we completed a public offering of $400 million, $500 million, $700 million, and $600 million aggregate principal amount of unsecured senior notes bearing interest at an annual rate of Compounded SOFR + 0.60% (reset quarterly), 5.125%, 5.100%, and 5.350%, respectively, and maturing on July 25, 2025, January 15, 2029, August 1, 2033, and August 1, 2053, respectively. Interest on the 2025 notes is payable quarterly, commencing on October 25, 2023. Interest on the 2029 notes is payable semi-annually, commencing on January 15, 2024. Interest on the 2033 notes and 2053 notes is payable semi-annually, commencing on February 1, 2024. In connection with the offering, we incurred a total of $18.7 million in costs.
On August 15, 2022, the Company redeemed its 2.370% Senior Notes due September 15, 2022, with an aggregate principal amount of $500.0 million.
On January 19, 2021, we completed a public offering of $500 million aggregate principal amount of senior notes bearing interest at an annual rate of 0.875% and maturing on February 15, 2026. Interest on the senior notes is payable semi-annually, commencing on August 15, 2021. In connection with the offering, we incurred $3.8 million in costs.
On April 23, 2021, we completed a public offering of $700 million, $650 million, and $650 million aggregate principal amount of senior notes bearing interest at an annual rate of the Compounded SOFR plus 0.47% (reset quarterly and at 4.36% as of December 31, 2022), 1.850%, and 2.300%, respectively, and maturing on April 23, 2024, May 1, 2028, and May 1, 2031, respectively. Interest on the 2024 notes is payable quarterly, commencing on July 23, 2021. Interest on the 2028 notes and 2031 notes is payable semi-annually, commencing on November 1, 2021. In connection with the offering, we incurred a total of $13.7 million in costs.
On November 9, 2021, we completed a public offering of $650 million, $550 million, and $550 million aggregate principal amount of senior notes bearing interest at an annual rate of 1.500%, 1.950%, and 2.250%, respectively, and maturing on November 9, 2026, November 9, 2028, and November 9, 2031, respectively. Interest on the senior notes is payable semi-annually, commencing on May 9, 2022. In connection with the offering, we incurred a total of $11.3 million in costs.
The U.S. Dollar denominated unsecured notes (the “U.S. Dollar Denominated Unsecured Notes”) have various financial covenants with which we were in compliance at December 31, 2023. Included in these covenants are (a) a maximum Debt to Total Assets of 65% (approximately 16% at December 31, 2023) and (b) a minimum ratio of Adjusted EBITDA to Interest Expense of 1.5x (approximately 17x for the twelve months ended December 31, 2023) as well as covenants limiting the amount we can encumber our properties with mortgage debt.
Euro Denominated Unsecured Notes
Our Euro denominated unsecured notes (the “Euro Notes”) consist of four tranches: (i) €242.0 million issued to institutional investors on November 3, 2015, (ii) €100.0 million issued to institutional investors on April 12, 2016, (iii) €500.0 million issued in a public offering on January 24, 2020, and (iv) €700.0 million issued in a public offering on September 9, 2021. Interest is payable semi-annually on the notes issued November 3, 2015 and April 12, 2016, and annually on the notes issued January 24, 2020 and September 9, 2021.The Euro Notes have financial covenants similar to those of the U.S. Dollar Denominated Unsecured Notes.
We reflect changes in the U.S. Dollar equivalent of the amount payable including the associated interest, as a result of changes in foreign exchange rates as “Foreign currency exchange (loss) gain” on our income statement (losses of $51.6 million for 2023, as compared to gains of $99.2 million for 2022 and $111.8 million for 2021).
Mortgage Notes
We assumed our non-recourse mortgage debt in connection with property acquisitions, and we recorded such debt at fair value with any premium or discount to the stated note balance amortized using the effective interest method.
At December 31, 2023, the related contractual interest rates of our mortgage notes are fixed, ranging between 3.9% and 7.1%, and mature between September 1, 2028 and July 1, 2030.
At December 31, 2023, approximate principal maturities of our Notes Payable are as follows (amounts in thousands):
 Unsecured DebtMortgage DebtTotal
2024$810,372$124$810,496
2025667,116131667,247
20261,150,0001381,150,138
2027500,000146500,146
20281,200,0001291,200,129
Thereafter 4,824,4691,1654,825,634
$9,151,957$1,833$9,153,790
Weighted average effective rate 3.1%4.4%3.1%
v3.24.0.1
Noncontrolling Interests
12 Months Ended
Dec. 31, 2023
Noncontrolling Interest [Abstract]  
Noncontrolling Interests Noncontrolling InterestsThere are noncontrolling interests related to several subsidiaries we consolidate of which we do not own 100% of the equity. At December 31, 2023, certain of these subsidiaries have issued 499,966 partnership units to third-parties that are convertible on a one-for-one basis (subject to certain limitations) into common shares of the Company at the request of the unitholder.
v3.24.0.1
Shareholders' Equity
12 Months Ended
Dec. 31, 2023
Stockholders' Equity Note [Abstract]  
Shareholders' Equity Shareholders’ Equity
Preferred Shares
At December 31, 2023 and December 31, 2022, we had the following series of Cumulative Preferred Shares (“Preferred Shares”) outstanding:

   
At December 31, 2023
At December 31, 2022
SeriesEarliest Redemption DateDividend RateShares OutstandingLiquidation PreferenceShares OutstandingLiquidation Preference
   (Dollar amounts in thousands)
Series F6/2/20225.150 %11,200 $280,000 11,200 $280,000 
Series G8/9/20225.050 %12,000 300,000 12,000 300,000 
Series H3/11/20245.600 %11,400 285,000 11,400 285,000 
Series I9/12/20244.875 %12,650 316,250 12,650 316,250 
Series J11/15/20244.700 %10,350 258,750 10,350 258,750 
Series K12/20/20244.750 %9,200 230,000 9,200 230,000 
Series L6/17/20254.625 %22,600 565,000 22,600 565,000 
Series M8/14/20254.125 %9,200 230,000 9,200 230,000 
Series N10/6/20253.875 %11,300 282,500 11,300 282,500 
Series O11/17/20253.900 %6,800 170,000 6,800 170,000 
Series P6/16/20264.000 %24,150 603,750 24,150 603,750 
Series Q8/17/20263.950 %5,750 143,750 5,750 143,750 
Series R11/19/20264.000 %17,400 435,000 17,400 435,000 
Series S1/13/20274.100 %10,000 250,000 10,000 250,000 
Total Preferred Shares174,000 $4,350,000 174,000 $4,350,000 
The holders of our Preferred Shares have general preference rights with respect to liquidation, quarterly distributions, and any accumulated unpaid distributions. Except as noted below, holders of the Preferred Shares do not have voting rights. In the event of a cumulative arrearage equal to six quarterly dividends, holders of all outstanding series of preferred shares (voting as a single class without regard to series) will have the right to elect two additional members to serve on our Board of Trustees (our “Board”) until the arrearage has been cured. At December 31, 2023, there were no dividends in arrears. The affirmative vote of at least 66.67% of the outstanding shares of a series of Preferred Shares is required for any material and adverse amendment to the terms of such series. The affirmative vote of at least 66.67% of the outstanding shares of all of our Preferred Shares, voting as a single class, is required to issue shares ranking senior to our Preferred Shares.
Except under certain conditions relating to the Company’s qualification as a REIT, the Preferred Shares are not redeemable prior to the dates indicated on the table above. On or after the respective dates, each of the series of Preferred Shares is redeemable at our option, in whole or in part, at $25.00 per depositary share, plus accrued and unpaid dividends. Holders of the Preferred Shares cannot require us to redeem such shares.
Upon issuance of our Preferred Shares, we classify the liquidation value as preferred equity on our consolidated balance sheet with any issuance costs recorded as a reduction to Paid-in capital.
During 2022 and 2021, we issued the following series of Preferred Shares at an issuance price of $25.00 per depository share with each depository share representing 0.001 of a share of Preferred Share (none in 2023) (amounts in thousands):
YearSeriesSharesGross ProceedsIssuance Costs
2022S10,000 $250,000 $7,168 
2021P, Q and R47,300 1,182,500 35,045 
During 2021, we redeemed the following series of Preferred Shares at par (none in 2023 and 2022) (amounts in thousands):
YearSeriesAggregate Redemption Amount
Allocation of Income to Preferred Shares Holders in Connection with Redemption
2021C, D and E$875,000 $28,914 
Common Shares
During 2023, 2022, and 2021, activity with respect to the issuance of our common shares was as follows (dollar amounts in thousands):
202320222021
SharesAmountSharesAmountSharesAmount
Employee stock-based compensation and exercise of stock options (Note 12)405,059 $53,386 283,190 $35,405 552,713 $95,860 
Our Board previously authorized the repurchase from time to time of up to 35.0 million of our common shares on the open market or in privately negotiated transactions. Through December 31, 2023, we repurchased approximately 23.7 million shares pursuant to this authorization; none of which were repurchased during the three years ended December 31, 2023.
On February 4, 2023, our Board declared a 50% increase in our regular common quarterly dividend from $2.00 to $3.00 per share. The distribution equates to an annualized increase to the Company’s regular common dividend from $8.00 to $12.00 per share. Common share dividends paid, including amounts paid to our restricted share unitholders and deferred share unitholders, totaled $2.111 billion ($12.00 per share), $3.714 billion ($21.15 per share), and $1.402 billion ($8.00 per share) for the years ended December 31, 2023, 2022, and 2021, respectively. Included in common share dividends paid during 2022 is $2.3 billion of a special cash dividend (“Special Dividend”) of $13.15 per common share paid on August 4, 2022 in connection with the sale of our equity investment in PSB on July 20, 2022. Preferred share dividends totaled $194.7 million, $194.4 million and $186.6 million for the years ended December 31, 2023, 2022, and 2021, respectively.
The unaudited characterization of dividends for U.S. federal corporate income tax purposes is made based upon earnings and profits of the Company, as defined by the Code. For the tax year ended December 31, 2023, distributions for the common shares and all the various series of preferred shares were classified as follows:
2023 (unaudited)
1st Quarter2nd Quarter3rd Quarter4th Quarter
Ordinary Dividends100.00 %100.00 %100.00 %100.00 %
Capital Gain Distributions0.00 %0.00 %0.00 %0.00 %
Total100.00 %100.00 %100.00 %100.00 %
The ordinary income dividends distributed for the tax year ended December 31, 2023 are not qualified dividends under the Internal Revenue Code; however, they are subject to the 20% deduction under IRS Section 199A
v3.24.0.1
Related Party Transactions
12 Months Ended
Dec. 31, 2023
Related Party Transactions [Abstract]  
Related Party Transactions Related Party Transactions
At December 31, 2023, Tamara Hughes Gustavson, a current member of our Board, held less than a 0.1% equity interest in, and is a manager of, a limited liability company that owns 65 self-storage facilities in Canada. Two of Ms. Gustavson’s adult children owned the remaining equity interest in the limited liability company. These facilities operate under the Public Storage® tradename, which we license to the owners of these facilities for use in Canada on a royalty-free, non-exclusive basis. We have no ownership interest in these facilities and we do not own or operate any facilities in Canada. If we chose to acquire or develop our own facilities in Canada, we would have to share the use of the Public Storage® name in Canada. We have a right of first refusal, subject to limitations, to acquire the stock or assets of the corporation engaged in the operation of these facilities if their owners agree to sell them. Our subsidiaries reinsure risks relating to loss of goods stored by customers in these facilities, and have received premium payments of approximately $2.1 million, $2.2 million and $2.1 million for 2023, 2022, and 2021, respectively.
v3.24.0.1
Share-Based Compensation
12 Months Ended
Dec. 31, 2023
Share-Based Payment Arrangement [Abstract]  
Share-Based Compensation Share-Based Compensation
Under various share-based compensation plans and under terms established or modified by our Board or a committee thereof, we grant equity awards to trustees, officers, and key employees, including non-qualified options to purchase the Company’s common shares, restricted share units (“RSUs”), deferred share units (“DSUs”), and unrestricted common shares issued in lieu of trustee compensation.
On April 26, 2021, the Company’s Shareholders approved the 2021 Equity and Performance-Based Incentive Compensation Plan (“2021 Plan”), which authorized an additional three million shares available for future issuance of equity-based awards. As of December 31, 2023, there were a total of 1,364,578 shares reserved for granting of future options and stock awards under the 2021 Plan.
We recorded share-based compensation expense associated with our equity awards in the various expense categories in the Consolidated Statements of Income as set forth in the following table. In addition, $2.4 million, $4.1 million, and $3.9 million share-based compensation cost was capitalized as real estate facilities for the year ended December 31, 2023, 2022, and 2021, respectively.
For Years Ended December 31,
 202320222021
 (Amounts in thousands)
Self-storage cost of operations$13,636 $17,950 $20,544 
Ancillary cost of operations1,289 888 1,561 
Real estate acquisition and development expense1,242 11,204 4,031 
General and administrative25,399 26,661 33,729 
Total$41,566 $56,703 $59,865 

Included in share-based compensation is $3.2 million, $14.9 million and $15.9 million for the years ended December 31, 2023, 2022, and 2021, respectively, of Retirement Acceleration as discussed in Note 2.
Stock Options
We have service-based and performance-based stock options outstanding. Performance-based stock options outstanding vest upon meeting certain performance conditions or market conditions. Stock options generally vest over 3 to 5 years, expire 10 years after the grant date, and have an exercise price equal to the closing trading price of our common shares on the grant date. New shares are issued for options exercised. Employees cannot require the Company to settle their awards in cash.
For the years ended December 31, 2023, 2022, and 2021, we incurred share-based compensation cost for outstanding stock options of $14.9 million, $19.9 million and $25.1 million, respectively.
During 2023, we granted 60,000 stock options in connection with non-management trustee compensation. 117,168 stock options were awarded during 2023 where vesting is dependent upon meeting certain market conditions over the three-year period from March 15, 2023 through March 14, 2026, with continued service-based vesting through the first quarter of 2028. These stock options require relative achievement of the Company’s total shareholder return as compared to the weighted average total shareholder return of specified peer groups and can result in grantees earning up to 200% of the target options originally granted.
During 2022, 77,683 stock options were awarded where vesting is dependent upon meeting certain market conditions over the three-year period from January 1, 2022 through December 31, 2024, with continued service-based vesting through the first quarter of 2027. These stock options require relative achievement of the Company’s total shareholder return as compared to the weighted average total shareholder return of specified peer groups and can result in grantees earning up to 200% of the target options originally granted.
During 2021, 245,000 stock options were awarded where vesting is dependent upon meeting certain performance targets over the three-year period from January 1, 2021 through December 31, 2023, which are considered performance conditions, with continued service-based vesting through the first quarter of 2026. These awards contain a relative Total Shareholder Return modifier that will adjust the payout based on relative performance as compared to the market. These performance targets were met at 125% achievement at December 31, 2023. With the relative Total Shareholder Return modifier measured through December 31, 2023, the total payout was at 150% of the target options originally granted.
The stock options outstanding at December 31, 2023 have an aggregate intrinsic value (the excess, if any, of each option’s market value over the exercise price) of approximately $249.3 million and remaining average contractual lives of approximately five years. Total compensation cost related to nonvested stock options that has not yet been recognized is $14.7 million and is expected to be recognized as compensation cost over approximately two years on average. Exercisable stock options have an aggregate intrinsic value of approximately $183.1 million at December 31, 2023 and remaining average contractual lives of approximately four years.
Additional information with respect to stock options during 2023, 2022, and 2021 is as follows:
Service-BasedPerformance-BasedTotal
Number of OptionsWeighted Average Exercise Price per ShareNumber of OptionsWeighted Average Exercise Price per ShareNumber of OptionsWeighted Average Exercise Price per Share
Options outstanding January 1, 2021
2,231,167 $204.60 730,000 $228.94 2,961,167 $210.59 
Granted (a)140,000 248.54 420,000 229.53 560,000 234.29 
Exercised(471,216)(203.30)— — (471,216)(203.30)
Cancelled— — (10,000)(228.94)(10,000)(228.94)
Options outstanding December 31, 2021
1,899,951 $208.16 1,140,000 $229.16 3,039,951 $216.04 
Granted (b)65,000 398.97 138,933 299.88 203,933 331.46 
Special dividend adjustment (c)62,512 N/A41,836 N/A104,348 N/A
Exercised(173,422)(189.95)(10,327)(221.68)(183,749)(191.74)
Cancelled— — — — — — 
Options outstanding December 31, 2022 (d)
1,854,041 $209.53 1,310,442 $229.39 3,164,483 $217.75 
Granted (e)60,000 286.81 180,423 265.46 240,425 270.79 
Exercised(272,250)(167.15)(34,401)(221.68)(306,651)(173.26)
Cancelled(12,049)(293.81)(34,987)(229.34)(47,036)(245.86)
Options outstanding December 31, 2023
1,629,742 $218.83 1,421,477 $234.16 3,051,221 $225.97 
Options exercisable at December 31, 2023
1,475,764 $210.75 507,766 $221.68 1,983,530 $213.55 
202320222021
Aggregate exercise date intrinsic value of options exercised during the year (in 000's)$35,662$27,210$44,613
Average assumptions used in valuing options with the Black-Scholes method:
Expected life of options in years665
Risk-free interest rate3.5%2.9%0.8%
Expected volatility, based upon historical volatility24.4%22.9%24.1%
Expected dividend yield4.2%2.0%2.9%
Average assumptions used in valuing options with market conditions with the Monte-Carlo simulation method:
Expected life of options in years775
Risk-free interest rate3.5%1.8%0.9%
Expected volatility, based upon historical volatility23.8%22.6%26.5%
Expected dividend yield4.1%2.3%2.9%
Average estimated value of options granted during the year$56.86$87.57$62.66
(a) Amount granted for performance-based stock options includes 180,000 options for performance adjustments above target for options granted in 2020.
(b) Amount granted for performance-based stock options includes 61,250 options for performance adjustments above target for options granted in 2021.
(c) On August 4, 2022, we paid a Special Dividend of $13.15 per common share to shareholders of record as of August 1, 2022. Stock options that were outstanding at the time of the Special Dividend were adjusted pursuant to the anti-dilution provisions of the Company’s applicable equity and performance-based incentive compensation plans that provide for equitable adjustments in the event of an extraordinary cash dividend. The anti-dilution adjustments proportionately increased the number of outstanding stock options and reduced the exercise prices of outstanding stock options by a conversion rate of 1.03275, resulting in an increase of 104,348 stock options outstanding. The adjustments did not result in incremental share-based compensation expense.
(d) The weighted average exercise price of options outstanding at December 31, 2022 reflect the adjusted exercise price post the anti-dilution adjustment on August 3, 2022.
(e) Amount granted for performance-based stock options includes 63,257 options for payout adjustments based on Total Shareholder Return modifier for options granted in 2021.
Restricted Share Units
We have service-based and performance-based RSUs outstanding, which generally vest over 5 to 8 years from the grant date. Performance-based RSUs outstanding vest upon meeting certain performance conditions or market conditions. The grantee receives dividends for each outstanding RSU equal to the per-share dividends received by our common shareholders. We expense any dividends previously paid upon forfeiture of the related RSU. Upon vesting, the grantee receives new common shares equal to the number of vested RSUs, less common shares withheld to satisfy the grantee’s statutory tax liabilities arising from the vesting.
The fair value of our RSUs is determined based upon the applicable closing trading price of our common shares.
For the years ended December 31, 2023, 2022, and 2021, we incurred share-based compensation cost for RSUs of $28.2 million, $39.9 million, and $37.6 million, respectively.
Among the 115,185 RSUs granted during 2023, 37,211 RSUs were awarded where vesting is dependent upon meeting certain market conditions over a three-year period from March 15, 2023 through March 14, 2026, with continued service-based vesting through the first quarter of 2028. These RSUs require relative achievement of the Company’s total shareholder return as compared to the weighted average total shareholder return of specified peer groups and can result in grantees earning up to 200% of the target RSUs originally granted.
During 2022, 21,985 RSUs were awarded where vesting is dependent upon meeting certain market conditions over a three-year period from January 1, 2022 through December 31, 2024, with continued service-based vesting through the first quarter of 2027. The amount of these RSUs that are earned and vested, if any, will be based, in addition to continued employment requirements, on the Company's relative total shareholder return over the three-year period as compared to the weighted average total shareholder return of the specified peer groups and can result in grantees earning up to 200% of the target RSUs originally granted.
During 2021, 37,000 RSUs were awarded where vesting is dependent upon meeting certain performance targets for 2021, which are considered performance conditions, with continued service-based vesting through the first quarter of 2026. As of December 31, 2023, these targets were met at 125% achievement.
Remaining compensation cost related to RSUs outstanding at December 31, 2023 totals approximately $72.5 million and is expected to be recognized over the next three years on average. The following tables set forth relevant information with respect to restricted shares (dollar amounts in thousands):
Service-BasedPerformance-BasedTotal
Number of Restricted Share UnitsWeighted-Average Grant-Date Fair ValueNumber of Restricted Share UnitsWeighted-Average Grant-Date Fair ValueNumber of Restricted Share UnitsWeighted-Average Grant-Date Fair Value
Restricted share units outstanding January 1, 2021552,788 $218.11 — $— 552,788 $218.11 
Granted (a)143,068 336.06 46,250 275.12 189,318 321.17 
Vested(138,420)(216.63)— — (138,420)(216.63)
Forfeited(32,864)(221.32)— — (32,864)(221.32)
Restricted share units outstanding December 31, 2021524,572 $249.90 46,250 $275.12 570,822 $251.95 
Granted51,575 293.43 21,985 465.11 73,560 344.74 
Vested(146,138)(240.71)— — (146,138)(240.71)
Forfeited(22,197)(256.50)— — (22,197)(256.50)
Restricted share units outstanding December 31, 2022407,812 $258.34 68,235 $336.33 476,047 $269.52 
Granted77,974 296.19 37,211 295.61 115,185 296.01 
Vested(132,909)(245.19)(9,250)(275.12)(142,159)(247.13)
Forfeited(30,229)(266.60)(2,183)(300.86)(32,412)(268.91)
Restricted share units outstanding December 31, 2023322,648 $272.14 94,013 $327.06 416,661 $284.53 

202320222021
Amounts for the year (in 000's, except number of shares):
Fair value of vested shares on vesting date$41,999 $47,244 $37,430 
Cash paid for taxes upon vesting in lieu of issuing common shares$13,950 $16,827 $13,069 
Common shares issued upon vesting96,657 99,009 81,325 
Average assumptions used in valuing restricted share units with market conditions with the Monte-Carlo simulation method:
Time from the valuation date to the end of the performance period33
Risk-free interest rate3.8%1.6%
Expected volatility, based upon historical volatility28.2%26.5%
Expected dividend yield4.1%2.3%
(a)Amount granted for performance-based RSUs includes 9,250 RSUs for performance adjustments above target for RSUs granted in 2021.
Trustee Deferral Program
Non-management trustees may elect to receive all or a portion of their cash retainers in cash, unrestricted common shares, or fully-vested DSUs to be settled at a specified future date. Unrestricted common shares and/or DSUs will be granted to the non-management trustee on the last day of each calendar quarter based on the cash retainer earned for that quarter and converted into a number of shares or units based on the applicable closing price of our common shares on such date. During 2023, we granted 2,085 DSUs and 884 unrestricted common shares. During 2023, 867 previously granted DSUs were settled in common shares. A total of 10,769 DSUs were outstanding at December 31, 2023 (9,551 at December 31, 2022).
v3.24.0.1
Net Income per Common Share
12 Months Ended
Dec. 31, 2023
Earnings Per Share [Abstract]  
Net Income per Common Share Net Income per Common Share
We allocate net income to (i) noncontrolling interests based upon their contractual rights in the respective subsidiaries or for participating noncontrolling interests based upon their participation in both distributed and undistributed earnings of the Company, (ii) preferred shareholders, for distributions paid or payable, (iii) preferred shareholders, to the extent redemption cost exceeds the related original net issuance proceeds (a “preferred share redemption charge”), and (iv) RSUs, for non-forfeitable dividends paid and adjusted for participation rights in undistributed earnings of the Company.
We calculate basic and diluted net income per common share based upon net income allocable to common shareholders, divided by (i) weighted average common shares for basic net income per common share, and (ii) weighted average common shares adjusted for the impact of dilutive stock options outstanding for diluted net income per common share. Stock options representing 375,577 common shares were excluded from the computation of diluted earnings per share for 2023, as compared to 147,344 common shares for 2022, because their effect would have been antidilutive.
The following table reconciles the numerators and denominators of the basic and diluted net income per common shares computation for the year ended December 31, 2023, 2022, and 2021, respectively (in thousands, except per share amounts):
For the Years Ended December 31,
 202320222021
Numerator for basic and dilutive net income per common share – net income allocable to common shareholders$1,948,741$4,142,288$1,732,444
Denominator for basic net income per share - weighted average common shares outstanding175,472175,257174,858
Net effect of dilutive stock options - based on treasury stock method6711,023710
Denominator for dilutive net income per share - weighted average common shares outstanding176,143176,280175,568
Net income per common share:
Basic$11.11$23.64$9.91
Dilutive$11.06$23.50$9.87
v3.24.0.1
Segment Information
12 Months Ended
Dec. 31, 2023
Segment Reporting [Abstract]  
Segment Information Segment Information
Our operating segments reflect the significant components of our operations where discrete financial information is evaluated separately by our chief operating decision maker.
Self-Storage Operations
The Self-Storage Operations reportable segment reflects the aggregated rental operations from the self-storage facilities we own through the following operating segments: (i) Same Store Facilities, (ii) Acquired Facilities, (iii) Developed and Expanded Facilities, and (iv) Other Non-Same Store Facilities. The presentation in the table below sets forth the Net Operating Income (“NOI”) of this reportable segment, as well as the related depreciation expense. For all periods presented, substantially all of our real estate facilities, goodwill and other intangible assets, other assets, and accrued and other liabilities are associated with the Self-Storage Operations reportable segment.
Ancillary Operations
The Ancillary Operations reflects the combined operations of our tenant reinsurance, merchandise sales, and third party property management operating segments.
Presentation of Segment Information
The following table reconciles NOI and net income attributable to our reportable segment to our consolidated net income:
For the Years Ended December 31,
 202320222021
 (amounts in thousands)
Self-Storage Operations Reportable Segment
Revenue$4,259,613 $3,946,028 $3,203,566 
Cost of operations(1,061,950)(980,209)(852,030)
   Net operating income3,197,663 2,965,819 2,351,536 
Depreciation and amortization(970,056)(888,146)(713,428)
   Net income2,227,607 2,077,673 1,638,108 
Ancillary Operations
Revenue258,077 236,135 212,258 
Cost of operations(85,996)(72,698)(68,568)
   Net operating income172,081 163,437 143,690 
    Total net income allocated to segments2,399,688 2,241,110 1,781,798 
Other items not allocated to segments:
Real estate acquisition and development expense(26,451)(28,744)(12,923)
General and administrative(80,632)(71,672)(75,966)
Interest and other income85,590 40,567 12,306 
Interest expense(201,132)(136,319)(90,774)
Equity in earnings of unconsolidated real estate entities27,897 106,981 232,093 
Foreign currency exchange (loss) gain(51,197)98,314 111,787 
Gain on sale of real estate17,178 1,503 13,683 
Gain on sale of equity investment in PS Business Parks, Inc.— 2,128,860 — 
Income tax expense(10,821)(14,326)(12,365)
     Net income$2,160,120 $4,366,274 $1,959,639 
v3.24.0.1
Commitments and Contingencies
12 Months Ended
Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]  
Commitments and Contingencies Commitments and Contingencies
Contingent Losses
We are a party to various legal proceedings and subject to various claims and complaints; however, we believe that the likelihood of these contingencies resulting in a material loss to the Company, either individually or in the aggregate, is remote.
Insurance and Loss Exposure
We carry property, earthquake, general liability, employee medical insurance, and workers compensation coverage through internationally recognized insurance carriers, subject to deductibles. Our deductible for general liability is $2.0 million per occurrence. Our annual deductible for property loss is $25.0 million per occurrence. This deductible decreases to $5.0 million once we reach $35.0 million in aggregate losses for occurrences that exceed $5.0 million. Insurance carriers’ aggregate limits on these policies of $75.0 million for property losses and $102.0 million for general liability losses are higher than estimates of maximum probable losses that could occur from individual catastrophic events determined in recent engineering and actuarial studies; however, in case of multiple catastrophic events, these limits could be exceeded.
We reinsure a program that provides insurance to our customers from an independent third-party insurer. This program covers customer claims for losses to goods stored at our facilities as a result of specific named perils (earthquakes are not covered by this program), up to a maximum limit of $5,000 per storage unit. We reinsure all risks in this program, but purchase insurance to cover this exposure for a limit of $15.0 million for losses in excess of $5.0 million per occurrence. We are subject to licensing requirements and regulations in all states. Customers participate in the program at their option. At December 31, 2023, there were approximately 1.3 million certificates held by our self-storage customers, representing aggregate coverage of approximately $6.2 billion.
Commitments
We have construction commitments representing future expected payments for construction under contract totaling $164.8 million at December 31, 2023. We expect to pay approximately $149.3 million in 2024 and $15.5 million in 2025 for these construction commitments.
We have future contractual payments on land, equipment and office space under various lease commitments totaling $65.4 million at December 31, 2023. We expect to pay approximately $4.0 million in each of 2024, 2025, and 2026, $2.6 million in 2027, $2.5 million in 2028, and $48.3 million thereafter for these commitments.
v3.24.0.1
SCHEDULE III - REAL ESTATE AND ACCUMULATED DEPRECIATION
12 Months Ended
Dec. 31, 2023
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
Gross Carrying Amount At December 31, 2023
DescriptionNo. of
Facilities
Net
Rentable
Square Feet
2023
Encum-
brances
LandBuildings &
Improvements
Costs
Subsequent
to Acquisition
LandBuildingsTotalAccumulated
Depreciation
Self-storage facilities by market:
Los Angeles230 17,257 $306 $559,185 $1,068,073 $541,531 $565,340 $1,603,449 $2,168,789 $994,124 
Dallas/Ft. Worth211 18,907 — 361,873 2,184,105 256,575 364,101 2,438,452 2,802,553 521,797 
Houston165 13,894 — 272,737 902,137 303,823 272,058 1,206,639 1,478,697 422,909 
Chicago143 9,310 — 156,554 519,539 170,469 159,391 687,171 846,562 449,618 
San Francisco141 9,197 — 245,623 557,398 319,345 258,373 863,993 1,122,366 591,695 
Washington DC119 8,458 — 423,176 1,329,933 213,344 438,682 1,527,771 1,966,453 502,381 
Atlanta115 7,710 1,527 143,692 434,433 120,141 144,055 554,211 698,266 331,367 
Orlando/Daytona109 6,430 — 174,624 573,412 92,255 180,105 660,186 840,291 214,161 
New York106 7,892 — 314,288 736,217 299,222 320,626 1,029,101 1,349,727 584,340 
Seattle/Tacoma102 7,266 — 246,108 634,810 218,764 248,369 851,313 1,099,682 447,887 
Miami100 7,508 — 259,200 563,334 183,251 261,093 744,692 1,005,785 431,641 
Denver70 5,290 — 120,117 323,262 115,449 120,838 437,990 558,828 204,831 
Minneapolis/St. Paul68 5,456 — 128,142 332,631 141,412 131,696 470,489 602,185 186,863 
Philadelphia67 4,484 — 66,271 297,576 95,223 65,292 393,778 459,070 202,399 
Tampa66 4,587 — 103,717 353,560 94,617 107,030 444,864 551,894 172,976 
Charlotte62 4,752 — 89,937 250,135 95,517 97,800 337,789 435,589 173,600 
Detroit54 3,963 — 77,077 289,354 73,053 78,483 361,001 439,484 155,132 
Phoenix53 3,825 — 108,051 367,874 48,863 108,042 416,746 524,788 156,365 
Baltimore50 3,919 — 136,598 775,086 58,286 136,722 833,248 969,970 167,074 
Portland50 2,917 — 65,013 225,043 55,281 65,671 279,666 345,337 138,095 
Oklahoma City48 3,493 — 69,100 310,648 28,922 69,100 339,570 408,670 49,755 
West Palm Beach46 3,833 — 156,788 221,479 119,973 157,496 340,744 498,240 177,442 
San Antonio40 2,827 — 54,753 224,313 40,978 54,711 265,333 320,044 95,103 
Austin39 3,123 — 72,382 212,110 56,840 74,404 266,928 341,332 119,942 
Raleigh39 2,813 — 90,683 224,341 49,943 91,672 273,295 364,967 94,764 
Indianapolis37 2,450 — 46,160 171,251 31,225 47,160 201,476 248,636 65,018 
Norfolk36 2,199 — 47,939 125,410 34,521 47,378 160,492 207,870 89,683 
Sacramento36 2,120 — 32,023 92,323 44,386 32,507 136,225 168,732 96,150 
Columbia35 2,236 — 39,521 165,797 26,242 40,280 191,280 231,560 53,940 
Columbus32 2,443 — 55,843 143,208 33,589 55,950 176,690 232,640 61,850 
Kansas City31 2,121 — 20,212 114,080 54,757 20,412 168,637 189,049 75,990 
Boston29 2,038 — 85,717 223,625 42,014 86,283 265,073 351,356 136,437 
St. Louis27 1,749 — 22,546 85,838 40,671 23,395 125,660 149,055 77,098 
Las Vegas26 1,743 — 32,147 129,839 24,005 31,395 154,596 185,991 64,709 
San Diego24 2,183 — 89,782 162,043 54,101 92,292 213,634 305,926 121,509 
Nashville/Bowling Green22 1,435 — 31,362 100,045 33,215 31,360 133,262 164,622 41,120 
Initial Cost
Gross Carrying Amount At December 31, 2023
DescriptionNo. of
Facilities
Net
Rentable
Square Feet
2023
Encum-
brances
LandBuildings &
Improvements
Costs
Subsequent
to Acquisition
LandBuildingsTotalAccumulated
Depreciation
Memphis22 1,418 — 27,627 167,899 15,346 28,980 181,892 210,872 28,898 
Cincinnati21 1,241 — 19,385 67,782 29,599 19,303 97,463 116,766 41,676 
Mobile19 1,097 — 24,147 95,838 9,590 23,974 105,601 129,575 20,429 
Colorado Springs17 1,172 — 13,667 64,569 26,394 13,664 90,966 104,630 38,685 
Fort Myers/Naples16 1,209 — 33,789 113,782 12,180 34,023 125,728 159,751 31,735 
Greensville/Spartanburg/Asheville16 998 — 12,910 68,856 12,940 13,826 80,880 94,706 28,410 
Louisville16 970 — 24,868 50,185 10,346 24,867 60,532 85,399 24,018 
Richmond16 808 — 21,121 56,202 10,092 20,926 66,489 87,415 27,542 
Milwaukee15 964 — 13,189 32,071 11,262 13,158 43,364 56,522 38,449 
Jacksonville15 922 — 14,454 47,415 16,595 14,503 63,961 78,464 40,554 
Greensboro15 911 — 15,590 43,181 16,298 17,679 57,390 75,069 33,648 
Birmingham15 606 — 6,316 25,567 16,677 6,204 42,356 48,560 31,601 
Charleston14 978 — 16,947 56,793 26,117 17,923 81,934 99,857 36,810 
Chattanooga13 846 — 10,030 45,578 9,066 9,832 54,842 64,674 21,705 
Salt Lake City13 802 — 20,454 41,607 6,647 20,103 48,605 68,708 18,945 
Honolulu12 896 — 69,611 127,041 23,033 70,528 149,157 219,685 85,116 
New Orleans12 861 — 14,096 72,425 13,077 14,264 85,334 99,598 34,714 
Savannah12 700 — 33,094 42,465 5,987 31,766 49,780 81,546 25,473 
Omaha11 940 — 17,965 69,085 5,467 17,965 74,552 92,517 13,693 
Hartford/New Haven11 693 — 6,778 19,959 27,641 8,443 45,935 54,378 37,212 
Cleveland/Akron10 631 — 5,916 30,775 9,494 6,309 39,876 46,185 16,296 
Augusta10 586 — 9,833 35,451 5,190 9,833 40,641 50,474 10,833 
Buffalo/Rochester462 — 6,785 17,954 7,251 6,783 25,207 31,990 17,283 
Boise671 — 16,756 71,912 2,221 16,756 74,133 90,889 6,900 
Reno559 — 5,487 18,704 6,980 5,487 25,684 31,171 15,473 
Tucson439 — 9,403 25,491 8,990 9,884 34,000 43,884 24,851 
Wichita433 — 2,017 6,691 8,834 2,130 15,412 17,542 12,945 
Monterey/Salinas329 — 8,465 24,151 7,845 8,455 32,006 40,461 26,472 
Evansville326 — 2,340 14,316 1,686 2,312 16,030 18,342 6,174 
Huntsville/Decatur298 — 9,161 13,481 3,848 9,108 17,382 26,490 7,747 
Dayton284 — 1,074 8,975 5,283 1,073 14,259 15,332 8,624 
Fort Wayne271 — 3,487 11,003 3,695 3,487 14,698 18,185 7,042 
Providence248 — 2,644 26,118 4,000 2,644 30,118 32,762 8,544 
Lansing233 — 2,048 22,897 1,755 2,048 24,652 26,700 3,210 
Roanoke223 — 5,093 18,091 1,591 5,093 19,682 24,775 5,425 
Palm Springs242 — 8,309 18,065 3,282 8,309 21,347 29,656 14,206 
Flint191 — 2,734 19,228 666 2,733 19,895 22,628 2,588 
Initial Cost
Gross Carrying Amount At December 31, 2023
DescriptionNo. of
Facilities
Net
Rentable
Square Feet
2023
Encum-
brances
LandBuildings &
Improvements
Costs
Subsequent
to Acquisition
LandBuildingsTotalAccumulated
Depreciation
Rochester155 — 2,142 10,787 3,799 2,075 14,653 16,728 4,719 
Shreveport150 — 817 3,030 3,476 741 6,582 7,323 5,329 
Springfield/Holyoke144 — 1,428 3,380 2,599 1,427 5,980 7,407 5,330 
Santa Barbara98 — 5,733 9,106 1,183 5,733 10,289 16,022 7,172 
Topeka94 — 225 1,419 2,167 225 3,586 3,811 3,342 
Joplin56 — 264 904 1,067 264 1,971 2,235 1,738 
Syracuse55 — 545 1,279 1,413 545 2,692 3,237 2,155 
Modesto/Fresno/Stockton33 — 44 206 1,399 193 1,456 1,649 1,167 
Commercial and non-operating real estate— 13,194 26,143 136,325 13,348 162,314 175,662 69,331 
3,044 218,071 $1,833 $5,542,781 $17,177,947 $4,744,510 $5,628,488 $21,836,750 $27,465,238 $9,423,974 
Note: Buildings and improvements are depreciated on a straight-line basis over estimated useful lives ranging generally between 5 to 25 years. In addition, disclosures of the number and square footage of our facilities are unaudited.
v3.24.0.1
Pay vs Performance Disclosure - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Pay vs Performance Disclosure      
Net Income (Loss) Attributable to Parent $ 2,148,327 $ 4,349,147 $ 1,953,263
v3.24.0.1
Insider Trading Arrangements
3 Months Ended
Dec. 31, 2023
Trading Arrangements, by Individual  
Rule 10b5-1 Arrangement Adopted false
Non-Rule 10b5-1 Arrangement Adopted false
Rule 10b5-1 Arrangement Terminated false
Non-Rule 10b5-1 Arrangement Terminated false
v3.24.0.1
Basis of Presentation and Summary of Significant Accounting Policies (Policies)
12 Months Ended
Dec. 31, 2023
Accounting Policies [Abstract]  
Basis of Presentation
Basis of Presentation
We have prepared the accompanying consolidated financial statements in accordance with U.S. generally accepted accounting principles (“GAAP”) as set forth in the Accounting Standards Codification of the Financial Accounting Standards Board, and in conformity with the rules and regulations of the Securities and Exchange Commission (“SEC”).
We revised our prior period financial statements to correct the presentation of income tax expense in the Consolidated Statements of Income. Income tax expense in the amounts of $14.3 million and $12.4 million for 2022 and 2021, respectively, previously included in general and administrative expense, has been reclassified and presented separately in the Consolidated Statements of Income to conform to the 2023 presentation. This immaterial correction had no impact on our net income. The correction also had no impact on our balance sheet, statements of comprehensive income, statements of equity, or cash flows as of and for the years ended December 31, 2022 and 2021.
Certain amounts previously reported in our 2022 and 2021 Consolidated Statements of Income have been reclassified to conform to the 2023 presentation, with respect to the separate presentation of real estate acquisition and development expense in the amounts of $28.7 million and $12.9 million for 2022 and 2021, respectively, previously included in general and administrative expense. The reclassifications had no impact on our net income.
Certain amounts previously reported in our 2022 and 2021 Statements of Cash Flows have been reclassified to conform to the 2023 presentation, with respect to the separate presentation of changes in operating assets and liabilities in the cash flows from operating activities section and major types of capital expenditures in the cash flows from investing activities section. The reclassifications did not affect the subtotals for cash flows from operating, investing or financing activities.
Disclosures of the number and square footage of facilities, as well as the number and coverage of tenant reinsurance policies (Note 15) are unaudited and outside the scope of our independent registered public accounting firm’s audit of our financial statements in accordance with the standards of the Public Company Accounting Oversight Board (U.S.).
Consolidation and Equity Method of Accounting
Consolidation and Equity Method of Accounting
We consider entities to be Variable Interest Entities (“VIEs”) when they have insufficient equity to finance their activities without additional subordinated financial support provided by other parties, or the equity holders as a group do not have a controlling financial interest. In addition, we have general partner interests in limited partnerships along with third-party investors to develop, construct or operate self-storage facilities. As the general partner, we consider the limited partnerships to be VIEs if the limited partners lack both substantive participating rights and substantive kick-out rights. We consolidate VIEs when we have (i) the power to direct the activities most significantly impacting economic performance, and (ii) either the obligation to absorb losses or the right to receive benefits from the VIE. PSA OP met the definition of a VIE and is consolidated by the Company as the primary beneficiary of PSA OP. All of the assets and liabilities of the Company are held by PSA OP. The total assets, primarily real estate assets, and the total liabilities of our other consolidated VIEs are not material as of December 31, 2023. We consolidate all other entities when we control them through voting shares or contractual rights. We refer to the entities we consolidate, for the period in which the reference applies, collectively as the “Subsidiaries,” and we eliminate intercompany transactions and balances.
We account for our investments in entities that we do not consolidate but over which we have significant influence using the equity method of accounting. We refer to these entities, for the periods in which the reference applies, collectively as the “Unconsolidated Real Estate Entities,” and we eliminate intra-entity profits and losses and amortize any differences between the cost of our investment and the underlying equity in net assets against equity in earnings as if the Unconsolidated Real Estate Entity were a consolidated subsidiary.
Equity in earnings of unconsolidated real estate entities presented on our income statements represents our pro-rata share of the earnings of the Unconsolidated Real Estate Entities. The dividends we receive from the Unconsolidated Real Estate Entities are reflected on our consolidated statements of cash flows as “distributions from cumulative equity in earnings of unconsolidated real estate entities” to the extent of our cumulative equity in earnings, with any excess classified as “distributions in excess of cumulative equity in earnings from unconsolidated real estate entities.”
Use of Estimates
Use of Estimates
The preparation of consolidated financial statements and accompanying notes in conformity with GAAP requires us to make estimates and assumptions that affect the amounts reported. Actual results could differ from those estimates and assumptions.
Cash Equivalents and Restricted Cash
Cash Equivalents and Restricted Cash
Cash equivalents represent highly liquid financial instruments that mature within three months of acquisition such as money market funds with a rating of at least AAA by Standard & Poor’s, commercial paper that is rated A1 by Standard & Poor’s or deposits with highly rated commercial banks. Restricted cash, which represent amounts used to collateralize our insurance obligations and are restricted from general corporate use, are included in other assets.
Fair Value
Fair Value
As used herein, the term “fair value” is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. In the absence of active markets for identical assets or liabilities, such measurements involve developing assumptions based on market observable data and, in the absence of such data, internal information that is consistent with what market participants would use in a hypothetical transaction that occurs at the balance sheet date.
Assets and liabilities recorded at fair value are measured and classified in accordance with a three-tier fair value hierarchy based on the observability of the inputs available in the market used to measure fair value:
Level 1 Quoted prices in active markets for identical assets or liabilities at the measurement date.
Level 2 Significant observable inputs other than Level 1, that are observable for the asset or liability, either directly or indirectly through corroboration with observable market data.
Level 3 Unobservable inputs that are supported by little or no market data for the related assets or liabilities.
The categorization of a financial instrument within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement.
Our financial instruments consist of cash and cash equivalents, restricted cash, other assets, other liabilities, and notes payable. Cash equivalents, restricted cash, other assets and other liabilities are stated at book value, which approximates fair value as of the balance sheet date due to the short time period to maturity.
We estimate and disclose the fair value of our notes payable using Level 2 inputs by discounting the related future cash flows at a rate based upon quoted interest rates for securities that have similar characteristics such as credit quality and time to maturity.
We use significant judgment to estimate fair values of real estate facilities, goodwill, and other intangible assets for the purposes of purchase price allocation or impairment analysis. In estimating their values, we consider Level 3 inputs such as market prices of land, market capitalization rates, expected returns, earnings multiples, projected levels of earnings, costs of construction, and functional depreciation.
Real Estate Facilities
Real Estate Facilities
We record real estate facilities at cost. We capitalize all costs incurred to acquire, develop, construct, renovate and improve facilities as part of major repair and maintenance programs, including interest and property taxes incurred during the construction period. We expense the costs of demolition of existing facilities associated with a renovation as incurred. We allocate the net acquisition cost of acquired real estate facilities to the underlying land, buildings, and identified intangible assets based upon their respective individual estimated fair values.
We expense costs associated with dispositions of real estate, as well as routine repairs and maintenance costs, as incurred. We depreciate buildings and improvements on a straight-line basis over estimated useful lives ranging generally between 5 to 25 years.
When we sell a full or partial interest in a real estate facility without retaining a controlling interest following sale, we recognize a gain or loss on sale as if 100% of the property was sold at fair value. If we retain a controlling interest following the sale, we record a noncontrolling interest for the book value of the partial interest sold, and recognize additional paid-in capital for the difference between the consideration received and the partial interest at book value.
Goodwill and Other Intangible Assets
Goodwill and Other Intangible Assets
Intangible assets consist of goodwill, the Shurgard® trade name, which Shurgard uses pursuant to a fee-based licensing agreement, and finite-lived assets. Goodwill and the Shurgard® trade name have indefinite lives and are not amortized. Our finite-lived assets consist primarily of (i) acquired customers in place amortized relative to the benefit of the customers in place, with such amortization reflected as depreciation and amortization expense on our income statement, (ii) property tax abatements acquired and amortized relative to the reduction in property tax paid, with such amortization reflected as self-storage cost of operations on our income statement and (iii) acquired non real estate-related contracts, with such amortization reflected as depreciation and amortization expense on our income statement.
Evaluation of Asset Impairment
Evaluation of Asset Impairment
We evaluate our real estate and finite-lived intangible assets for impairment each quarter. If there are indicators of impairment and we determine that the asset is not recoverable from future undiscounted cash flows to be received through the asset’s remaining life (or, if earlier, the expected disposal date), we record an impairment charge to the extent the carrying amount exceeds the asset’s estimated fair value or net proceeds from expected disposal.
We evaluate our investments in unconsolidated real estate entities for impairment quarterly. We record an impairment charge to the extent the carrying amount exceeds estimated fair value, when we believe any such shortfall is other than temporary.
We evaluate goodwill for impairment annually and whenever relevant events, circumstances, and other related factors indicate that it is more likely than not that the fair value of the related reporting unit is less than the carrying amount. When we conclude that it is not more likely than not that the fair value of the reporting unit is less than the aggregate carrying amount, no impairment charge is recorded and no further analysis is performed. Otherwise, we record an impairment charge to the extent the carrying amount of the goodwill exceeds the amount that would be allocated to goodwill if the reporting unit were acquired for estimated fair value.
We evaluate other indefinite-lived intangible assets, such as the Shurgard® trade name for impairment at least annually and whenever relevant events, circumstances and other related factors indicate that it is more likely than not that the asset is impaired. When we conclude that it is not more likely than not that the asset is impaired, we do not record an impairment charge and no further analysis is performed. Otherwise, we record an impairment charge to the extent the carrying amount exceeds the asset’s estimated fair value.
Revenue And Expense Recognition
Revenue and Expense Recognition
We recognize revenues from self-storage facilities, which primarily comprise rental income earned pursuant to month-to-month leases, as well as associated late charges and administrative fees, as earned. Promotional discounts reduce rental income over the promotional period, which is generally one month. We recognize ancillary revenues when earned.
We accrue for property tax expense based upon actual amounts billed and, in some circumstances, estimates when bills or assessments have not been received from the taxing authorities. If these estimates are incorrect, the timing and amount of expense recognition could be incorrect. We expense cost of operations (including advertising expenditures), general and administrative expense, and interest expense as incurred.
Foreign Currency Exchange Translation
Foreign Currency Exchange Translation
The local currency (primarily the Euro) is the functional currency for our interests in foreign operations. The related balance sheet amounts are translated into U.S. Dollars at the exchange rates at the respective financial statement date, while amounts on our consolidated statements of income are translated at the average exchange rates during the respective period. Cumulative translation adjustments, are included in equity as a component of accumulated other comprehensive income (loss).
When financial instruments denominated in a currency other than the U.S. Dollar are expected to be settled in cash in the foreseeable future, the impact of changes in the U.S. Dollar equivalent are reflected in current earnings.
At December 31, 2023, due primarily to our investment in Shurgard (Note 5) and our notes payable denominated in Euros (Note 8), our operating results and financial position are affected by fluctuations in currency exchange rates between the Euro, and to a lesser extent, other European currencies, against the U.S. Dollar.
Income Taxes
Income Taxes
We and a subsidiary of PSOC have elected to be treated as a REIT, as defined in the Internal Revenue Code of 1986, as amended (the “Code”). For each taxable year in which we qualify for taxation as a REIT, we will not be subject to U.S. federal corporate income tax on our “REIT taxable income” (generally, taxable income subject to specified adjustments, including a deduction for dividends paid and excluding our net capital gain) that is distributed to our shareholders. We believe we have met these REIT requirements for all periods presented herein. Accordingly, we have recorded no U.S. federal corporate income tax expense related to our REIT taxable income.
We have elected taxable REIT subsidiary (“TRS”) status for some of our consolidated subsidiaries. Our tenant reinsurance, merchandise, and third party management operations are conducted under these TRSs and are subject to federal corporate income tax. For these entities, deferred tax assets and liabilities for temporary differences are recognized based on the future tax consequences attributable to differences that exist between the financial statement carrying amounts of assets and liabilities and their respective tax bases, as well as tax attributes such as operating loss, capital loss and tax credits carryforwards on a taxing jurisdiction basis. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the year in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. Valuation allowances are established when necessary to reduce deferred tax assets to the amounts that are expected more likely than not to be realized in the future.
We recognize tax benefits of uncertain income tax positions only if we believe it is more likely than not that the position would ultimately be sustained assuming the relevant taxing authorities had full knowledge of the relevant facts and circumstances of our positions. As of December 31, 2023, we had no tax benefits that were not recognized.
We also incur income taxes in certain state and local jurisdictions, which are included in income tax expense in the Consolidated Statements of Income.
Share-Based Compensation
Share-Based Compensation
We generally estimate the fair value of share-based payment awards on the date of grant. We determine the fair value of restricted share units (“RSUs”) with no market conditions based on the closing market price of the Company’s common shares on the date of grant. We value stock options with no market conditions at the grant date using the Black-Scholes option-pricing model. We value stock options and RSUs with market conditions at the grant date using a Monte-Carlo valuation simulation. Our determination of the fair value of share-based payment awards on the date of grant using an option-pricing model or Monte-Carlo valuation simulation is affected by our stock price as well as assumptions regarding a number of subjective and complex variables. These variables include, but are not limited to, our expected stock price volatility over the expected term of the awards. For stock options, variables also include actual and projected stock option exercise behaviors. For restricted share units and stock options with performance conditions, we adjust compensation cost each quarter as needed for any changes in the assessment of the probability that the specified performance criteria will be achieved.
We amortize the grant-date fair value of awards as compensation expense over the service period, which begins on the grant date and ends on the expected vesting date. For awards that are earned solely upon the passage of time and continued service, the entire cost of the award is amortized on a straight-line basis over the service period. For awards with market and/or performance conditions, the individual cost of each vesting is amortized separately over each individual service period (the “accelerated attribution” method). For awards with performance conditions, the estimated number of stock awards that will ultimately vest requires judgment, and to the extent actual results or updated estimates differ from our current estimates, such amounts will be recorded as a cumulative adjustment in the period estimates are revised. In amortizing share-based compensation expense, we do not estimate future forfeitures. Instead, we reverse previously amortized share-based compensation expense with respect to grants that are forfeited in the period the employee terminates employment.
Our share-based compensation plans allow immediate vesting of outstanding unvested awards upon retirement (“Retirement Acceleration”) for employees who meet certain conditions. We accelerate amortization of compensation expense for each grant by changing the end of the service period from the original vesting date to the date an employee is expected to be eligible for Retirement Acceleration, if earlier.
Recent Accounting Pronouncements Not Yet Adopted
Recent Accounting Pronouncements Not Yet Adopted
In November 2023, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosure, to require a public entity to disclose significant segment expenses and other segment items on an annual and interim basis and to provide in interim periods all disclosures about a reportable segment’s profit or loss and assets that are currently required annually. Public entities with a single reportable segment are required to provide the new disclosures and all the disclosures required under ASC 280. The guidance is effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024, on a retrospective basis. Early adoption is permitted. We are currently evaluating the impact of this ASU on our Consolidated Financial Statements and related disclosures.
In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, to enhance the transparency and decision-usefulness of income tax disclosures, particularly in the rate reconciliation table and disclosures about income taxes paid. The ASU’s amendments are effective for annual periods beginning after December 15, 2024 on a prospective basis. Early adoption is permitted. We are currently evaluating the impact of this ASU on our Consolidated Financial Statements and related disclosures.
v3.24.0.1
Simply Acquisition (Tables)
12 Months Ended
Dec. 31, 2023
Business Combination and Asset Acquisition [Abstract]  
Schedule of Recognized Assets and Liabilities The total purchase price, including direct transaction costs, was allocated as follows (in thousands):
Cash
$6,032 
Real estate facilities:
Land229,396 
Buildings1,762,752 
Construction in process
2,922 
Intangible assets:
Acquired customers in place209,516 
Non real estate-related contracts
4,750 
Other assets
12,046 
Accrued and other liabilities
(43,231)
Total purchase price, including direct transaction costs$2,184,183 
v3.24.0.1
Real Estate Facilities (Tables)
12 Months Ended
Dec. 31, 2023
Real Estate [Abstract]  
Schedule of Real Estate Activities
For the Years Ended December 31,
 202320222021
 (Amounts in thousands)
Operating facilities, at cost:
Beginning balance $24,219,126 $22,807,833 $17,372,627 
Capital expenditures to maintain real estate facilities232,048 205,169 137,428 
Capital expenditures for property enhancements163,380 194,931 116,478 
Capital expenditures for energy efficiencies (LED lighting, solar)65,026 52,216 30,294 
Acquisitions 2,442,118 733,442 4,940,413 
Dispositions and other(19,322)(1,704)(7,408)
Developed or expanded facilities opened for operation362,862 227,239 218,001 
Ending balance 27,465,238 24,219,126 22,807,833 
Accumulated depreciation:
Beginning balance (8,554,155)(7,773,308)(7,152,135)
Depreciation expense (881,255)(781,931)(625,968)
Dispositions and other11,436 1,084 4,795 
Ending balance (9,423,974)(8,554,155)(7,773,308)
Construction in process:
Beginning balance 372,992 272,471 188,079 
Costs incurred to develop and expand real estate facilities356,788 336,948 302,393 
Acquisitions 2,922 — — 
Write-off of cancelled projects and transfer to other assets(24,387)(9,188)— 
Developed or expanded facilities opened for operation(362,862)(227,239)(218,001)
Ending balance 345,453 372,992 272,471 
Total real estate facilities at December 31,
$18,386,717 $16,037,963 $15,306,996 
v3.24.0.1
Investments in Unconsolidated Real Estate Entities (Tables)
12 Months Ended
Dec. 31, 2023
Equity Method Investments and Joint Ventures [Abstract]  
Schedule of Investments in Real Estate Entities And Equity in Earnings of Real Estate Entities
The following table sets forth our equity in earnings of the Unconsolidated Real Estate Entities (amounts in thousands):
Equity in Earnings of Unconsolidated Real Estate Entities for the
Year Ended December 31,
202320222021
Shurgard$27,897$26,385$24,371
PSB 80,596207,722
Total $27,897$106,981$232,093
The following table represents summarized financial information for PSB derived from its reported financial statements prepared under US GAAP before our basis difference adjustments for the years ended December 31, 2022 and 2021 (amounts in thousands). Due to the complete sale of our equity investment in PSB in July 2022, the summarized financial information for 2022 includes PSB's financial activities through June 30, 2022, which represents the most practical date of such reported information prior to the transaction. Summarized financial information for Shurgard is excluded in the table below.
Year Ended December 31,
20222021
Revenues$223,750$438,703
Costs of operations 66,701130,896
Operating income88,702195,264
Gain on sale of real estate118,801359,875
Net Income208,665553,029
v3.24.0.1
Goodwill and Other Intangible Assets (Tables)
12 Months Ended
Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Intangible Assets and Goodwill
Goodwill and other intangible assets consisted of the following (amounts in thousands):
At December 31, 2023At December 31, 2022
Gross Book ValueAccumulated AmortizationNet Book ValueGross Book ValueAccumulated AmortizationNet Book Value
Goodwill$165,843 $— $165,843 $165,843 $— $165,843 
Shurgard® Trade Name18,824 — 18,824 18,824 — 18,824 
Finite-lived intangible assets, subject to amortization995,578 (792,978)202,600 758,106 (710,256)47,850 
Total goodwill and other intangible assets$1,180,245 $(792,978)$387,267 $942,773 $(710,256)$232,517 
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense The estimated future amortization expense for our finite-lived intangible assets at December 31, 2023 is as follows (amounts in thousands):
YearAmount
2024$116,338 
202560,467 
202619,129 
20272,797 
2028377 
Thereafter3,492 
Total$202,600 
v3.24.0.1
Notes Payable (Tables)
12 Months Ended
Dec. 31, 2023
Notes Payable [Abstract]  
Schedule of Notes Payable Our notes payable at December 31, 2023 and December 31, 2022 are set forth in the tables below:
   
Amounts at December 31, 2023
Amounts at
 December 31, 2022
 Coupon RateEffective Rate PrincipalUnamortized CostsBook
 Value
Fair
 Value
Book
 Value
Fair
 Value
   ($ amounts in thousands)
U.S. Dollar Denominated Unsecured Debt
Notes due April 23, 2024
SOFR+0.47%
5.831%$700,000 $(221)$699,779 $700,031 $699,075 $691,309 
Notes due July 25, 2025
SOFR+0.60%
5.961%400,000 (1,278)398,722 400,295 — — 
Notes due February 15, 2026
0.875%1.030%500,000 (1,581)498,419 462,362 497,678 441,849 
Notes due November 9, 20261.500%1.640%650,000 (2,487)647,513 597,131 646,643 578,899 
Notes due September 15, 2027
3.094%3.218%500,000 (1,964)498,036 476,394 497,508 466,029 
Notes due May 1, 2028
1.850%1.962%650,000 (2,922)647,078 584,520 646,401 558,197 
Notes due November 9, 20281.950%2.044%550,000 (2,337)547,663 490,758 547,182 468,509 
Notes due January 15, 20295.125%5.260%500,000 (2,947)497,053 516,899 — — 
Notes due May 1, 2029
3.385%3.459%500,000 (1,637)498,363 477,692 498,053 456,855 
Notes due May 1, 2031
2.300%2.419%650,000 (5,012)644,988 562,240 644,303 530,390 
Notes due November 9, 20312.250%2.322%550,000 (2,782)547,218 469,845 546,866 443,514 
Notes due August 1, 20335.100%5.207%700,000 (5,552)694,448 725,753 — — 
Notes due August 1, 20535.350%5.442%600,000 (7,983)592,017 628,413 — — 
 7,450,000 (38,703)7,411,297 7,092,333 5,223,709 4,635,551 
Euro Denominated Unsecured Debt
Notes due April 12, 2024
1.540%1.540%110,372 — 110,372 109,380 107,035 104,344 
Notes due November 3, 2025
2.175%2.175%267,116 — 267,116 261,083 259,039 246,119 
Notes due September 9, 20300.500%0.640%772,607 (7,488)765,119 638,177 740,634 566,204 
Notes due January 24, 2032
0.875%0.978%551,862 (4,322)547,540 455,895 530,317 396,297 
   1,701,957 (11,810)1,690,147 1,464,535 1,637,025 1,312,964 
 Mortgage Debt, secured by 2 real estate facilities with a net book value of $11.7 million
4.398%4.398%1,833 — 1,833 1,733 10,092 9,568 
 $9,153,790 $(50,513)$9,103,277 $8,558,601 $6,870,826 $5,958,083 
Schedule of Maturities of Notes Payable
At December 31, 2023, approximate principal maturities of our Notes Payable are as follows (amounts in thousands):
 Unsecured DebtMortgage DebtTotal
2024$810,372$124$810,496
2025667,116131667,247
20261,150,0001381,150,138
2027500,000146500,146
20281,200,0001291,200,129
Thereafter 4,824,4691,1654,825,634
$9,151,957$1,833$9,153,790
Weighted average effective rate 3.1%4.4%3.1%
v3.24.0.1
Shareholders' Equity (Tables)
12 Months Ended
Dec. 31, 2023
Stockholders' Equity Note [Abstract]  
Schedule of Preferred Shares
At December 31, 2023 and December 31, 2022, we had the following series of Cumulative Preferred Shares (“Preferred Shares”) outstanding:

   
At December 31, 2023
At December 31, 2022
SeriesEarliest Redemption DateDividend RateShares OutstandingLiquidation PreferenceShares OutstandingLiquidation Preference
   (Dollar amounts in thousands)
Series F6/2/20225.150 %11,200 $280,000 11,200 $280,000 
Series G8/9/20225.050 %12,000 300,000 12,000 300,000 
Series H3/11/20245.600 %11,400 285,000 11,400 285,000 
Series I9/12/20244.875 %12,650 316,250 12,650 316,250 
Series J11/15/20244.700 %10,350 258,750 10,350 258,750 
Series K12/20/20244.750 %9,200 230,000 9,200 230,000 
Series L6/17/20254.625 %22,600 565,000 22,600 565,000 
Series M8/14/20254.125 %9,200 230,000 9,200 230,000 
Series N10/6/20253.875 %11,300 282,500 11,300 282,500 
Series O11/17/20253.900 %6,800 170,000 6,800 170,000 
Series P6/16/20264.000 %24,150 603,750 24,150 603,750 
Series Q8/17/20263.950 %5,750 143,750 5,750 143,750 
Series R11/19/20264.000 %17,400 435,000 17,400 435,000 
Series S1/13/20274.100 %10,000 250,000 10,000 250,000 
Total Preferred Shares174,000 $4,350,000 174,000 $4,350,000 
During 2022 and 2021, we issued the following series of Preferred Shares at an issuance price of $25.00 per depository share with each depository share representing 0.001 of a share of Preferred Share (none in 2023) (amounts in thousands):
YearSeriesSharesGross ProceedsIssuance Costs
2022S10,000 $250,000 $7,168 
2021P, Q and R47,300 1,182,500 35,045 
During 2021, we redeemed the following series of Preferred Shares at par (none in 2023 and 2022) (amounts in thousands):
YearSeriesAggregate Redemption Amount
Allocation of Income to Preferred Shares Holders in Connection with Redemption
2021C, D and E$875,000 $28,914 
Schedule of Issuance of Common Shares
During 2023, 2022, and 2021, activity with respect to the issuance of our common shares was as follows (dollar amounts in thousands):
202320222021
SharesAmountSharesAmountSharesAmount
Employee stock-based compensation and exercise of stock options (Note 12)405,059 $53,386 283,190 $35,405 552,713 $95,860 
Schedule of Distribution Classification For the tax year ended December 31, 2023, distributions for the common shares and all the various series of preferred shares were classified as follows:
2023 (unaudited)
1st Quarter2nd Quarter3rd Quarter4th Quarter
Ordinary Dividends100.00 %100.00 %100.00 %100.00 %
Capital Gain Distributions0.00 %0.00 %0.00 %0.00 %
Total100.00 %100.00 %100.00 %100.00 %
v3.24.0.1
Share-Based Compensation (Tables)
12 Months Ended
Dec. 31, 2023
Share-Based Payment Arrangement [Abstract]  
Schedule of Share-Based Compensation Expense
We recorded share-based compensation expense associated with our equity awards in the various expense categories in the Consolidated Statements of Income as set forth in the following table. In addition, $2.4 million, $4.1 million, and $3.9 million share-based compensation cost was capitalized as real estate facilities for the year ended December 31, 2023, 2022, and 2021, respectively.
For Years Ended December 31,
 202320222021
 (Amounts in thousands)
Self-storage cost of operations$13,636 $17,950 $20,544 
Ancillary cost of operations1,289 888 1,561 
Real estate acquisition and development expense1,242 11,204 4,031 
General and administrative25,399 26,661 33,729 
Total$41,566 $56,703 $59,865 
Schedule of Share-Based Payment Arrangement, Option, Activity
Additional information with respect to stock options during 2023, 2022, and 2021 is as follows:
Service-BasedPerformance-BasedTotal
Number of OptionsWeighted Average Exercise Price per ShareNumber of OptionsWeighted Average Exercise Price per ShareNumber of OptionsWeighted Average Exercise Price per Share
Options outstanding January 1, 2021
2,231,167 $204.60 730,000 $228.94 2,961,167 $210.59 
Granted (a)140,000 248.54 420,000 229.53 560,000 234.29 
Exercised(471,216)(203.30)— — (471,216)(203.30)
Cancelled— — (10,000)(228.94)(10,000)(228.94)
Options outstanding December 31, 2021
1,899,951 $208.16 1,140,000 $229.16 3,039,951 $216.04 
Granted (b)65,000 398.97 138,933 299.88 203,933 331.46 
Special dividend adjustment (c)62,512 N/A41,836 N/A104,348 N/A
Exercised(173,422)(189.95)(10,327)(221.68)(183,749)(191.74)
Cancelled— — — — — — 
Options outstanding December 31, 2022 (d)
1,854,041 $209.53 1,310,442 $229.39 3,164,483 $217.75 
Granted (e)60,000 286.81 180,423 265.46 240,425 270.79 
Exercised(272,250)(167.15)(34,401)(221.68)(306,651)(173.26)
Cancelled(12,049)(293.81)(34,987)(229.34)(47,036)(245.86)
Options outstanding December 31, 2023
1,629,742 $218.83 1,421,477 $234.16 3,051,221 $225.97 
Options exercisable at December 31, 2023
1,475,764 $210.75 507,766 $221.68 1,983,530 $213.55 
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions
202320222021
Aggregate exercise date intrinsic value of options exercised during the year (in 000's)$35,662$27,210$44,613
Average assumptions used in valuing options with the Black-Scholes method:
Expected life of options in years665
Risk-free interest rate3.5%2.9%0.8%
Expected volatility, based upon historical volatility24.4%22.9%24.1%
Expected dividend yield4.2%2.0%2.9%
Average assumptions used in valuing options with market conditions with the Monte-Carlo simulation method:
Expected life of options in years775
Risk-free interest rate3.5%1.8%0.9%
Expected volatility, based upon historical volatility23.8%22.6%26.5%
Expected dividend yield4.1%2.3%2.9%
Average estimated value of options granted during the year$56.86$87.57$62.66
(a) Amount granted for performance-based stock options includes 180,000 options for performance adjustments above target for options granted in 2020.
(b) Amount granted for performance-based stock options includes 61,250 options for performance adjustments above target for options granted in 2021.
(c) On August 4, 2022, we paid a Special Dividend of $13.15 per common share to shareholders of record as of August 1, 2022. Stock options that were outstanding at the time of the Special Dividend were adjusted pursuant to the anti-dilution provisions of the Company’s applicable equity and performance-based incentive compensation plans that provide for equitable adjustments in the event of an extraordinary cash dividend. The anti-dilution adjustments proportionately increased the number of outstanding stock options and reduced the exercise prices of outstanding stock options by a conversion rate of 1.03275, resulting in an increase of 104,348 stock options outstanding. The adjustments did not result in incremental share-based compensation expense.
(d) The weighted average exercise price of options outstanding at December 31, 2022 reflect the adjusted exercise price post the anti-dilution adjustment on August 3, 2022.
(e) Amount granted for performance-based stock options includes 63,257 options for payout adjustments based on Total Shareholder Return modifier for options granted in 2021.
Schedule of Share-Based Compensation Restricted Units The following tables set forth relevant information with respect to restricted shares (dollar amounts in thousands):
Service-BasedPerformance-BasedTotal
Number of Restricted Share UnitsWeighted-Average Grant-Date Fair ValueNumber of Restricted Share UnitsWeighted-Average Grant-Date Fair ValueNumber of Restricted Share UnitsWeighted-Average Grant-Date Fair Value
Restricted share units outstanding January 1, 2021552,788 $218.11 — $— 552,788 $218.11 
Granted (a)143,068 336.06 46,250 275.12 189,318 321.17 
Vested(138,420)(216.63)— — (138,420)(216.63)
Forfeited(32,864)(221.32)— — (32,864)(221.32)
Restricted share units outstanding December 31, 2021524,572 $249.90 46,250 $275.12 570,822 $251.95 
Granted51,575 293.43 21,985 465.11 73,560 344.74 
Vested(146,138)(240.71)— — (146,138)(240.71)
Forfeited(22,197)(256.50)— — (22,197)(256.50)
Restricted share units outstanding December 31, 2022407,812 $258.34 68,235 $336.33 476,047 $269.52 
Granted77,974 296.19 37,211 295.61 115,185 296.01 
Vested(132,909)(245.19)(9,250)(275.12)(142,159)(247.13)
Forfeited(30,229)(266.60)(2,183)(300.86)(32,412)(268.91)
Restricted share units outstanding December 31, 2023322,648 $272.14 94,013 $327.06 416,661 $284.53 
Schedule of Share-Based Payment Award, Restricted Stock Units, Valuation Assumptions
202320222021
Amounts for the year (in 000's, except number of shares):
Fair value of vested shares on vesting date$41,999 $47,244 $37,430 
Cash paid for taxes upon vesting in lieu of issuing common shares$13,950 $16,827 $13,069 
Common shares issued upon vesting96,657 99,009 81,325 
Average assumptions used in valuing restricted share units with market conditions with the Monte-Carlo simulation method:
Time from the valuation date to the end of the performance period33
Risk-free interest rate3.8%1.6%
Expected volatility, based upon historical volatility28.2%26.5%
Expected dividend yield4.1%2.3%
(a)Amount granted for performance-based RSUs includes 9,250 RSUs for performance adjustments above target for RSUs granted in 2021.
v3.24.0.1
Net Income per Common Share (Tables)
12 Months Ended
Dec. 31, 2023
Earnings Per Share [Abstract]  
Schedule of Net Income Per Common Share
The following table reconciles the numerators and denominators of the basic and diluted net income per common shares computation for the year ended December 31, 2023, 2022, and 2021, respectively (in thousands, except per share amounts):
For the Years Ended December 31,
 202320222021
Numerator for basic and dilutive net income per common share – net income allocable to common shareholders$1,948,741$4,142,288$1,732,444
Denominator for basic net income per share - weighted average common shares outstanding175,472175,257174,858
Net effect of dilutive stock options - based on treasury stock method6711,023710
Denominator for dilutive net income per share - weighted average common shares outstanding176,143176,280175,568
Net income per common share:
Basic$11.11$23.64$9.91
Dilutive$11.06$23.50$9.87
v3.24.0.1
Segment Information (Tables)
12 Months Ended
Dec. 31, 2023
Segment Reporting [Abstract]  
Schedule of Segment Information
The following table reconciles NOI and net income attributable to our reportable segment to our consolidated net income:
For the Years Ended December 31,
 202320222021
 (amounts in thousands)
Self-Storage Operations Reportable Segment
Revenue$4,259,613 $3,946,028 $3,203,566 
Cost of operations(1,061,950)(980,209)(852,030)
   Net operating income3,197,663 2,965,819 2,351,536 
Depreciation and amortization(970,056)(888,146)(713,428)
   Net income2,227,607 2,077,673 1,638,108 
Ancillary Operations
Revenue258,077 236,135 212,258 
Cost of operations(85,996)(72,698)(68,568)
   Net operating income172,081 163,437 143,690 
    Total net income allocated to segments2,399,688 2,241,110 1,781,798 
Other items not allocated to segments:
Real estate acquisition and development expense(26,451)(28,744)(12,923)
General and administrative(80,632)(71,672)(75,966)
Interest and other income85,590 40,567 12,306 
Interest expense(201,132)(136,319)(90,774)
Equity in earnings of unconsolidated real estate entities27,897 106,981 232,093 
Foreign currency exchange (loss) gain(51,197)98,314 111,787 
Gain on sale of real estate17,178 1,503 13,683 
Gain on sale of equity investment in PS Business Parks, Inc.— 2,128,860 — 
Income tax expense(10,821)(14,326)(12,365)
     Net income$2,160,120 $4,366,274 $1,959,639 
v3.24.0.1
Description of the Business (Details)
ft² in Thousands
Dec. 31, 2023
ft²
state
country
storage_facility
Nov. 14, 2023
Nature Of Business [Line Items]    
Net rentable area (in square feet) 218,071  
Shurgard    
Nature Of Business [Line Items]    
PSA number of self-storage facilities | storage_facility 275  
Net rentable area (in square feet) 15,000  
Ownership interest (as percent) 35.00% 35.00%
Number of countries in which entity operates | country 7  
Public Storage    
Nature Of Business [Line Items]    
PSA number of self-storage facilities | storage_facility 3,044  
Net rentable area (in square feet) 218,100  
Number of states with facilities | state 40  
Number of third-party self-storage facilities managed | storage_facility 210  
Public Storage | Commercial and Retail Space    
Nature Of Business [Line Items]    
Net rentable area (in square feet) 1,200  
v3.24.0.1
Basis of Presentation and Summary of Significant Accounting Policies (Basis of Presentation) (Narrative) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Accounting Policies [Abstract]      
Income tax expense $ 10,821 $ 14,326 $ 12,365
Real estate acquisition and development expense $ 26,451 $ 28,744 $ 12,923
v3.24.0.1
Basis of Presentation and Summary of Significant Accounting Policies (Real Estate Facilities) (Narrative) (Details)
12 Months Ended
Dec. 31, 2023
Summary Of Significant Accounting Policies [Line Items]  
Percentage of interest in real estate sold at fair value 100.00%
Minimum  
Summary Of Significant Accounting Policies [Line Items]  
Estimated useful lives of buildings and improvements (in years) 5 years
Maximum  
Summary Of Significant Accounting Policies [Line Items]  
Estimated useful lives of buildings and improvements (in years) 25 years
v3.24.0.1
Basis of Presentation and Summary of Significant Accounting Policies (Evaluation Of Asset Impairment) (Narrative) (Details) - USD ($)
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Accounting Policies [Abstract]      
Impairments $ 0 $ 0 $ 0
v3.24.0.1
Basis of Presentation and Summary of Significant Accounting Policies (Foreign Currency Exchange Translation) (Narrative) (Details)
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Trading Activity, Gains and Losses, Net [Line Items]      
Exchange rate translation (as percent) 1.104 1.070  
Weighted Average      
Trading Activity, Gains and Losses, Net [Line Items]      
Exchange rate 1.081 1.054 1.183
v3.24.0.1
Basis of Presentation and Summary of Significant Accounting Policies (Income Taxes) (Narrative) (Details)
Dec. 31, 2023
USD ($)
Accounting Policies [Abstract]  
Unrecognized tax benefits $ 0
v3.24.0.1
Simply Acquisition (Narrative) (Details) - Simply Acquisition
$ in Thousands, ft² in Millions
Sep. 13, 2023
USD ($)
storage_facility
ft²
Asset Acquisition [Line Items]  
Number of operating self-storage facilities acquired | storage_facility 127
Net rentable area acquired (in Sq.ft) | ft² 9.4
Number of self-storage facilities to manage for third parties | storage_facility 25
Total cost of acquisition $ 2,184,183
Cash acquired 6,032
Direct transaction cost $ 9,600
v3.24.0.1
Simply Acquisition (Schedule of Recognized Assets and Liabilities) (Details) - Simply Acquisition
$ in Thousands
Sep. 13, 2023
USD ($)
Asset Acquisition [Line Items]  
Cash $ 6,032
Real estate facilities:  
Land 229,396
Buildings 1,762,752
Construction in process 2,922
Intangible assets:  
Acquired customers in place 209,516
Non real estate-related contracts 4,750
Other assets 12,046
Accrued and other liabilities (43,231)
Total purchase price, including direct transaction costs $ 2,184,183
v3.24.0.1
Real Estate Facilities (Schedule of Real Estate Activities) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Operating facilities, at cost:      
Beginning balance (Operating facilities, at cost) $ 24,219,126 $ 22,807,833 $ 17,372,627
Capital expenditures to maintain real estate facilities 232,048 205,169 137,428
Capital expenditures for property enhancements 163,380 194,931 116,478
Capital expenditures for energy efficiencies (LED lighting, solar) 65,026 52,216 30,294
Acquisitions 2,442,118 733,442 4,940,413
Dispositions and other (19,322) (1,704) (7,408)
Developed or expanded facilities opened for operation 362,862 227,239 218,001
Ending balance (Operating facilities, at cost) 27,465,238 24,219,126 22,807,833
Accumulated depreciation:      
Beginning balance (Accumulated depreciation) (8,554,155) (7,773,308) (7,152,135)
Depreciation expense (881,255) (781,931) (625,968)
Dispositions and other 11,436 1,084 4,795
Ending balance (Accumulated depreciation) (9,423,974) (8,554,155) (7,773,308)
Construction in process:      
Beginning balance (Construction in process) 372,992 272,471 188,079
Costs incurred to develop and expand real estate facilities 356,788 336,948 302,393
Acquisitions 2,922 0 0
Write-off of cancelled projects and transfer to other assets (24,387) (9,188) 0
Developed or expanded facilities opened for operation (362,862) (227,239) (218,001)
Ending balance (Construction in process) 345,453 372,992 272,471
Total real estate facilities $ 18,386,717 $ 16,037,963 $ 15,306,996
v3.24.0.1
Real Estate Facilities (Narrative) (Details)
$ in Thousands, ft² in Millions
12 Months Ended
Jul. 08, 2022
USD ($)
site
property
Dec. 31, 2023
USD ($)
ft²
storage_facility
Dec. 31, 2022
USD ($)
ft²
storage_facility
Dec. 31, 2021
USD ($)
ft²
storage_facility
Schedule Of Real Estate Facilities [Line Items]        
Aggregate costs to develop and expand   $ 362,900 $ 227,200 $ 218,000
Net rentable area developed or expanded | ft²   1.7 1.4 1.6
Write off development cost   $ 11,700 $ 7,000  
Land cost transferred   12,700 2,200  
Payment for acquisition, land, held-for-use   13,500    
Payments to acquire real estate   473,176 757,944 $ 5,047,106
Gain on sale of real estate   17,178 1,503 13,683
Proceeds from sale of real estate investments   39,986 1,543 16,296
Adjusted basis of real estate   18,300,000    
Disposal of Real Estate Facilities        
Schedule Of Real Estate Facilities [Line Items]        
Net book value of real estate transaction   7,100    
Gross proceeds from sale of real estate   40,000    
Proceeds allocated to the sale of the property   24,300    
Gain on sale of real estate   17,100 $ 1,500 $ 13,700
Amount of excess cash proceeds from sale   15,700    
Land Parcel        
Schedule Of Real Estate Facilities [Line Items]        
Gain on sale of real estate   100    
Proceeds from sale of real estate investments   $ 100    
Acquisition of Self-Storage Facilities Other Investments        
Schedule Of Real Estate Facilities [Line Items]        
Number of operating self-storage facilities acquired | storage_facility   37 74 232
Net rentable area acquired (in Sq.ft) | ft²   2.7 4.7 21.8
Total cost of acquisition   $ 473,200 $ 730,500 $ 5,100,000
Payments to acquire intangible assets   $ 23,200 24,100 174,900
Payments to acquire real estate     710,600 5,000,000
Issuance of partnership units     $ 19,900 $ 68,200
Commercial Interests        
Schedule Of Real Estate Facilities [Line Items]        
Total cost of acquisition $ 47,300      
Number of properties acquired | property 5      
Number of sites in commercial interest acquisition | site 3      
Real estate investments, net $ 27,000      
Intangible assets, gross (excluding goodwill) 700      
Increase of equity investment $ 19,600      
v3.24.0.1
Investments in Unconsolidated Real Estate Entities (Schedule of Investments in Real Estate Entities and Equity In Earnings Of Real Estate Entities) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Schedule of Equity Method Investments [Line Items]      
Equity in Earnings of Unconsolidated Real Estate Entities $ 27,897 $ 106,981 $ 232,093
Shurgard      
Schedule of Equity Method Investments [Line Items]      
Equity in Earnings of Unconsolidated Real Estate Entities 27,897 26,385 24,371
PSB      
Schedule of Equity Method Investments [Line Items]      
Equity in Earnings of Unconsolidated Real Estate Entities $ 0 $ 80,596 $ 207,722
v3.24.0.1
Investments in Unconsolidated Real Estate Entities (Investment In Shurgard) (Narrative) (Details)
$ in Thousands
12 Months Ended
Nov. 14, 2023
USD ($)
shares
Dec. 31, 2023
USD ($)
shares
Dec. 31, 2022
USD ($)
shares
Dec. 31, 2021
USD ($)
Dec. 31, 2023
€ / shares
Schedule of Equity Method Investments [Line Items]          
Contributions to unconsolidated real estate entities   $ 112,554 $ 0 $ 0  
Exchange rate translation (as percent)   1.104 1.070    
Cash distribution received   $ 29,333 $ 134,769 150,488  
Distributions in excess of cumulative equity in earnings from unconsolidated real estate entities   10,975 13,670 19,518  
Gain (loss) of foreign currency translation   13,078 (26,730) (10,186)  
Shurgard          
Schedule of Equity Method Investments [Line Items]          
Investments in shurgard   $ 390,200 $ 275,800    
Ownership interest (as percent) 35.00% 35.00%      
Issuance of shares (in shares) | shares 8,163,265        
Number of shares acquired on pro-rata (in shares) | shares 2,863,674        
Contributions to unconsolidated real estate entities $ 112,600        
Common stock owned of Shurgard (in shares) | shares   34,132,133 31,268,459    
Share price (in euro per share) | € / shares         € 44.86
Market value   $ 1,700,000      
License fees received   3,800 $ 3,500 3,500  
Cash distribution received   39,000 37,800 41,500  
Distributions in excess of cumulative equity in earnings from unconsolidated real estate entities   11,000 13,700 19,500  
Basis differential   63,700 67,800    
Amortization of basis differential   4,100 6,900 8,400  
Shurgard | Trademark License          
Schedule of Equity Method Investments [Line Items]          
Cash distribution received   $ 1,300 $ 1,200 $ 1,200  
v3.24.0.1
Investments in Unconsolidated Real Estate Entities (Investment in PSB) (Narrative) (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Jul. 20, 2022
Sep. 30, 2022
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Schedule of Equity Method Investments [Line Items]          
Proceeds from sale of equity investment in PS Business Parks, Inc.     $ 0 $ 2,636,011 $ 0
Gain on sale of equity investment in PS Business Parks, Inc.     0 2,128,860 0
Cash distribution received     $ 29,333 134,769 150,488
PSB          
Schedule of Equity Method Investments [Line Items]          
Ownership interest (as percent) 41.00%        
Cash distribution received       $ 109,500 $ 127,300
PSB | Blackstone Real Estate          
Schedule of Equity Method Investments [Line Items]          
Proceeds from sale of equity investment in PS Business Parks, Inc. $ 2,700,000        
Gain on sale of equity investment in PS Business Parks, Inc.   $ 2,100,000      
v3.24.0.1
Investments in Unconsolidated Real Estate Entities - (Schedule of Investments in Real Estate Entities and Operation Statements) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Schedule of Equity Method Investments [Line Items]      
Revenue $ 4,517,690 $ 4,182,163 $ 3,415,824
Costs of operations 2,426,217 2,177,788 1,813,689
Gain on sale of real estate 17,178 1,503 13,683
Net income $ 2,160,120 4,366,274 1,959,639
PSB      
Schedule of Equity Method Investments [Line Items]      
Revenue   223,750 438,703
Costs of operations   66,701 130,896
Operating income   88,702 195,264
Gain on sale of real estate   118,801 359,875
Net income   $ 208,665 $ 553,029
v3.24.0.1
Goodwill and Other Intangible Assets (Schedule of Intangible Assets and Goodwill) (Details) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Indefinite-lived Intangible Assets [Line Items]    
Goodwill, gross $ 165,843 $ 165,843
Goodwill, net 165,843 165,843
Gross Book Value 995,578 758,106
Accumulated Amortization (792,978) (710,256)
Total 202,600 47,850
Gross Book Value 1,180,245 942,773
Net Book Value 387,267 232,517
Trade Names    
Indefinite-lived Intangible Assets [Line Items]    
Indefinite-lived intangible assets $ 18,824 $ 18,824
v3.24.0.1
Goodwill and Other Intangible Assets (Narrative) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]      
Amortization expense $ 82.7 $ 95.2 $ 76.6
Increase in finite-lived intangible assets $ 237.5 $ 24.8 $ 174.9
Finite-lived intangible assets, weighted average useful life (in years) 1 year 2 months 12 days    
v3.24.0.1
Goodwill and Other Intangible Assets (Schedule of Finite-Lived Intangible Assets, Future Amortization Expense) (Details) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]    
2024 $ 116,338  
2025 60,467  
2026 19,129  
2027 2,797  
2028 377  
Thereafter 3,492  
Total $ 202,600 $ 47,850
v3.24.0.1
Credit Facility (Details) - USD ($)
Dec. 31, 2023
Jun. 12, 2023
Feb. 20, 2024
Jun. 11, 2023
Dec. 31, 2022
Credit Facility          
Schedule Of Debt [Line Items]          
Credit Facility borrowing capacity   $ 1,500,000,000   $ 500,000,000  
Debt instrument, extension fee maximum, percentage of commitment   0.125%      
Facility fee percentage 0.10%        
Outstanding borrowings $ 0        
Debt issuance costs, line of credit arrangements, gross $ 8,400,000        
Credit Facility | Subsequent Event          
Schedule Of Debt [Line Items]          
Outstanding borrowings     $ 0    
Credit Facility | Secured Overnight Financing Rate (SOFR)          
Schedule Of Debt [Line Items]          
Interest rate spread (as percent) 0.70%        
Credit Facility | Minimum          
Schedule Of Debt [Line Items]          
Facility fee percentage 0.10%        
Credit Facility | Minimum | Secured Overnight Financing Rate (SOFR)          
Schedule Of Debt [Line Items]          
Interest rate spread (as percent)   0.65%      
Credit Facility | Maximum          
Schedule Of Debt [Line Items]          
Facility fee percentage 0.30%        
Credit Facility | Maximum | Secured Overnight Financing Rate (SOFR)          
Schedule Of Debt [Line Items]          
Interest rate spread (as percent)   1.40%      
Standby Letters of Credit          
Schedule Of Debt [Line Items]          
Undrawn standby letters of credit $ 14,600,000       $ 18,600,000
v3.24.0.1
Notes Payable (Schedule of Notes Payable) (Details)
$ in Thousands
Dec. 31, 2023
USD ($)
real_estate_facility
Jul. 26, 2023
USD ($)
Dec. 31, 2022
USD ($)
Nov. 09, 2021
Apr. 23, 2021
Jan. 19, 2021
Debt Instrument [Line Items]            
Principal $ 9,153,790          
Unamortized Costs (50,513)          
Book Value 9,103,277   $ 6,870,826      
Fair Value 8,558,601   5,958,083      
Notes due July 25, 2025            
Debt Instrument [Line Items]            
Principal   $ 400,000        
Notes due January 15, 2029            
Debt Instrument [Line Items]            
Coupon Rate   5.125%        
Principal   $ 500,000        
Notes due August 1, 2033            
Debt Instrument [Line Items]            
Coupon Rate   5.10%        
Principal   $ 700,000        
Notes due August 1, 2053            
Debt Instrument [Line Items]            
Coupon Rate   5.35%        
Principal   $ 600,000        
Secured Overnight Financing Rate (SOFR) | Notes due July 25, 2025            
Debt Instrument [Line Items]            
Interest rate spread (as percent)   0.60%        
U.S. Dollar Denominated Unsecured Debt            
Debt Instrument [Line Items]            
Principal 7,450,000          
Unamortized Costs (38,703)          
Book Value 7,411,297   5,223,709      
Fair Value $ 7,092,333   4,635,551      
U.S. Dollar Denominated Unsecured Debt | Notes due April 23, 2024            
Debt Instrument [Line Items]            
Effective Rate 5.831%          
Principal $ 700,000          
Unamortized Costs (221)          
Book Value 699,779   699,075      
Fair Value $ 700,031   691,309      
U.S. Dollar Denominated Unsecured Debt | Notes due July 25, 2025            
Debt Instrument [Line Items]            
Effective Rate 5.961%          
Principal $ 400,000          
Unamortized Costs (1,278)          
Book Value 398,722   0      
Fair Value $ 400,295   0      
U.S. Dollar Denominated Unsecured Debt | Notes due February 15, 2026            
Debt Instrument [Line Items]            
Coupon Rate 0.875%         0.875%
Effective Rate 1.03%          
Principal $ 500,000          
Unamortized Costs (1,581)          
Book Value 498,419   497,678      
Fair Value $ 462,362   441,849      
U.S. Dollar Denominated Unsecured Debt | Notes due November 9, 2026            
Debt Instrument [Line Items]            
Coupon Rate 1.50%     1.50%    
Effective Rate 1.64%          
Principal $ 650,000          
Unamortized Costs (2,487)          
Book Value 647,513   646,643      
Fair Value $ 597,131   578,899      
U.S. Dollar Denominated Unsecured Debt | Notes due September 15, 2027            
Debt Instrument [Line Items]            
Coupon Rate 3.094%          
Effective Rate 3.218%          
Principal $ 500,000          
Unamortized Costs (1,964)          
Book Value 498,036   497,508      
Fair Value $ 476,394   466,029      
U.S. Dollar Denominated Unsecured Debt | Notes due May 1, 2028            
Debt Instrument [Line Items]            
Coupon Rate 1.85%       1.85%  
Effective Rate 1.962%          
Principal $ 650,000          
Unamortized Costs (2,922)          
Book Value 647,078   646,401      
Fair Value $ 584,520   558,197      
U.S. Dollar Denominated Unsecured Debt | Notes due November 9, 2028            
Debt Instrument [Line Items]            
Coupon Rate 1.95%     1.95%    
Effective Rate 2.044%          
Principal $ 550,000          
Unamortized Costs (2,337)          
Book Value 547,663   547,182      
Fair Value $ 490,758   468,509      
U.S. Dollar Denominated Unsecured Debt | Notes due January 15, 2029            
Debt Instrument [Line Items]            
Coupon Rate 5.125%          
Effective Rate 5.26%          
Principal $ 500,000          
Unamortized Costs (2,947)          
Book Value 497,053   0      
Fair Value $ 516,899   0      
U.S. Dollar Denominated Unsecured Debt | Notes due May 1, 2029            
Debt Instrument [Line Items]            
Coupon Rate 3.385%          
Effective Rate 3.459%          
Principal $ 500,000          
Unamortized Costs (1,637)          
Book Value 498,363   498,053      
Fair Value $ 477,692   456,855      
U.S. Dollar Denominated Unsecured Debt | Notes due May 1, 2031            
Debt Instrument [Line Items]            
Coupon Rate 2.30%       2.30%  
Effective Rate 2.419%          
Principal $ 650,000          
Unamortized Costs (5,012)          
Book Value 644,988   644,303      
Fair Value $ 562,240   530,390      
U.S. Dollar Denominated Unsecured Debt | Notes due November 9, 2031            
Debt Instrument [Line Items]            
Coupon Rate 2.25%     2.25%    
Effective Rate 2.322%          
Principal $ 550,000          
Unamortized Costs (2,782)          
Book Value 547,218   546,866      
Fair Value $ 469,845   443,514      
U.S. Dollar Denominated Unsecured Debt | Notes due August 1, 2033            
Debt Instrument [Line Items]            
Coupon Rate 5.10%          
Effective Rate 5.207%          
Principal $ 700,000          
Unamortized Costs (5,552)          
Book Value 694,448   0      
Fair Value $ 725,753   0      
U.S. Dollar Denominated Unsecured Debt | Notes due August 1, 2053            
Debt Instrument [Line Items]            
Coupon Rate 5.35%          
Effective Rate 5.442%          
Principal $ 600,000          
Unamortized Costs (7,983)          
Book Value 592,017   0      
Fair Value $ 628,413   0      
U.S. Dollar Denominated Unsecured Debt | Secured Overnight Financing Rate (SOFR) | Notes due April 23, 2024            
Debt Instrument [Line Items]            
Interest rate spread (as percent) 0.47%          
U.S. Dollar Denominated Unsecured Debt | Secured Overnight Financing Rate (SOFR) | Notes due July 25, 2025            
Debt Instrument [Line Items]            
Interest rate spread (as percent) 0.60%          
Euro Denominated Unsecured Debt            
Debt Instrument [Line Items]            
Principal $ 1,701,957          
Unamortized Costs (11,810)          
Book Value 1,690,147   1,637,025      
Fair Value $ 1,464,535   1,312,964      
Euro Denominated Unsecured Debt | Notes due April 12, 2024            
Debt Instrument [Line Items]            
Coupon Rate 1.54%          
Effective Rate 1.54%          
Principal $ 110,372          
Unamortized Costs 0          
Book Value 110,372   107,035      
Fair Value $ 109,380   104,344      
Euro Denominated Unsecured Debt | Notes due November 3, 2025            
Debt Instrument [Line Items]            
Coupon Rate 2.175%          
Effective Rate 2.175%          
Principal $ 267,116          
Unamortized Costs 0          
Book Value 267,116   259,039      
Fair Value $ 261,083   246,119      
Euro Denominated Unsecured Debt | Notes due September 9, 2030            
Debt Instrument [Line Items]            
Coupon Rate 0.50%          
Effective Rate 0.64%          
Principal $ 772,607          
Unamortized Costs (7,488)          
Book Value 765,119   740,634      
Fair Value $ 638,177   566,204      
Euro Denominated Unsecured Debt | Notes due January 24, 2032            
Debt Instrument [Line Items]            
Coupon Rate 0.875%          
Effective Rate 0.978%          
Principal $ 551,862          
Unamortized Costs (4,322)          
Book Value 547,540   530,317      
Fair Value $ 455,895   396,297      
Mortgage Debt            
Debt Instrument [Line Items]            
Number of real estate facilities securing debt | real_estate_facility 2          
Net book value of real estate facilities securing notes payable $ 11,700          
Coupon Rate 4.398%          
Effective Rate 4.398%          
Principal $ 1,833          
Unamortized Costs 0          
Book Value 1,833   10,092      
Fair Value $ 1,733   $ 9,568      
v3.24.0.1
Notes Payable (Narrative) (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2023
USD ($)
tranche
Jul. 26, 2023
USD ($)
Apr. 23, 2021
USD ($)
Dec. 31, 2023
USD ($)
tranche
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Aug. 15, 2022
USD ($)
Nov. 09, 2021
USD ($)
Sep. 09, 2021
EUR (€)
Jan. 19, 2021
USD ($)
Jan. 24, 2020
EUR (€)
Apr. 12, 2016
EUR (€)
Nov. 03, 2015
EUR (€)
Debt Instrument [Line Items]                          
Total debt $ 9,153,790     $ 9,153,790                  
Foreign currency exchange (loss) gain       (51,197) $ 98,314 $ 111,787              
Cash paid for interest, net of amounts capitalized       155,500 133,800 77,700              
Interest capitalized as real estate       9,300 6,000 3,500              
U.S. Dollar Denominated Unsecured Debt                          
Debt Instrument [Line Items]                          
Total debt $ 7,450,000     $ 7,450,000                  
Debt to total assets ratio 16.00%     16.00%                  
Adjusted EBTIDA to interest Expense ratio       17                  
U.S. Dollar Denominated Unsecured Debt | Minimum                          
Debt Instrument [Line Items]                          
Adjusted EBTIDA to interest Expense ratio       1.5                  
Euro Denominated Unsecured Debt                          
Debt Instrument [Line Items]                          
Total debt $ 1,701,957     $ 1,701,957                  
Number of tranches | tranche 4     4                  
Foreign currency exchange (loss) gain       $ (51,600) $ 99,200 $ 111,800              
Notes due on 2025, 2029, 2033, and 2053 | U.S. Dollar Denominated Unsecured Debt                          
Debt Instrument [Line Items]                          
Debt issuance costs   $ 18,700                      
Maximum Covenant | U.S. Dollar Denominated Unsecured Debt                          
Debt Instrument [Line Items]                          
Debt to total assets ratio 65.00%     65.00%                  
Notes due November 3, 2025 | Euro Denominated Unsecured Debt                          
Debt Instrument [Line Items]                          
Total debt $ 267,116     $ 267,116                  
Interest rate (as percent) 2.175%     2.175%                  
Debt issuance amount | €                         € 242,000,000
Notes due April 12, 2024 | Euro Denominated Unsecured Debt                          
Debt Instrument [Line Items]                          
Total debt $ 110,372     $ 110,372                  
Interest rate (as percent) 1.54%     1.54%                  
Debt issuance amount | €                       € 100,000,000  
Notes due January 24, 2032 | Euro Denominated Unsecured Debt                          
Debt Instrument [Line Items]                          
Total debt $ 551,862     $ 551,862                  
Interest rate (as percent) 0.875%     0.875%                  
Debt issuance amount | €                     € 500,000,000    
Notes due September 9, 2030 | Euro Denominated Unsecured Debt                          
Debt Instrument [Line Items]                          
Total debt $ 772,607     $ 772,607                  
Interest rate (as percent) 0.50%     0.50%                  
Debt issuance amount | €                 € 700,000,000        
Mortgage Debt | Minimum                          
Debt Instrument [Line Items]                          
Interest rate (as percent) 3.90%     3.90%                  
Mortgage Debt | Maximum                          
Debt Instrument [Line Items]                          
Interest rate (as percent) 7.10%     7.10%                  
Notes due July 25, 2025                          
Debt Instrument [Line Items]                          
Total debt   $ 400,000                      
Notes due July 25, 2025 | U.S. Dollar Denominated Unsecured Debt                          
Debt Instrument [Line Items]                          
Total debt $ 400,000     $ 400,000                  
Notes due July 25, 2025 | Secured Overnight Financing Rate (SOFR)                          
Debt Instrument [Line Items]                          
Interest rate spread (as percent)   0.60%                      
Notes due July 25, 2025 | Secured Overnight Financing Rate (SOFR) | U.S. Dollar Denominated Unsecured Debt                          
Debt Instrument [Line Items]                          
Interest rate spread (as percent) 0.60%                        
Notes due January 15, 2029                          
Debt Instrument [Line Items]                          
Total debt   $ 500,000                      
Interest rate (as percent)   5.125%                      
Notes due January 15, 2029 | U.S. Dollar Denominated Unsecured Debt                          
Debt Instrument [Line Items]                          
Total debt $ 500,000     $ 500,000                  
Interest rate (as percent) 5.125%     5.125%                  
Notes due August 1, 2033                          
Debt Instrument [Line Items]                          
Total debt   $ 700,000                      
Interest rate (as percent)   5.10%                      
Notes due August 1, 2033 | U.S. Dollar Denominated Unsecured Debt                          
Debt Instrument [Line Items]                          
Total debt $ 700,000     $ 700,000                  
Interest rate (as percent) 5.10%     5.10%                  
Notes due August 1, 2053                          
Debt Instrument [Line Items]                          
Total debt   $ 600,000                      
Interest rate (as percent)   5.35%                      
Notes due August 1, 2053 | U.S. Dollar Denominated Unsecured Debt                          
Debt Instrument [Line Items]                          
Total debt $ 600,000     $ 600,000                  
Interest rate (as percent) 5.35%     5.35%                  
Notes Due September 15, 2022 | U.S. Dollar Denominated Unsecured Debt                          
Debt Instrument [Line Items]                          
Total debt             $ 500,000            
Interest rate (as percent)             2.37%            
Notes due February 15, 2026 | U.S. Dollar Denominated Unsecured Debt                          
Debt Instrument [Line Items]                          
Total debt $ 500,000     $ 500,000                  
Interest rate (as percent) 0.875%     0.875%           0.875%      
Debt issuance costs                   $ 3,800      
Debt issuance amount                   $ 500,000      
Notes due April 23, 2024 | U.S. Dollar Denominated Unsecured Debt                          
Debt Instrument [Line Items]                          
Total debt $ 700,000     $ 700,000                  
Reset quarterly rate (as percent) 4.36%     4.36%                  
Debt issuance amount     $ 700,000                    
Notes due April 23, 2024 | Secured Overnight Financing Rate (SOFR) | U.S. Dollar Denominated Unsecured Debt                          
Debt Instrument [Line Items]                          
Interest rate spread (as percent) 0.47%                        
Notes due April 23, 2024 | SOFR | U.S. Dollar Denominated Unsecured Debt                          
Debt Instrument [Line Items]                          
Interest rate spread (as percent)     0.47%                    
Notes due May 1, 2028 | U.S. Dollar Denominated Unsecured Debt                          
Debt Instrument [Line Items]                          
Total debt $ 650,000     $ 650,000                  
Interest rate (as percent) 1.85%   1.85% 1.85%                  
Debt issuance amount     $ 650,000                    
Notes due May 1, 2031 | U.S. Dollar Denominated Unsecured Debt                          
Debt Instrument [Line Items]                          
Total debt $ 650,000     $ 650,000                  
Interest rate (as percent) 2.30%   2.30% 2.30%                  
Debt issuance amount     $ 650,000                    
Notes Due April 23, 2024 May 1, 2028 And May 1, 2031 | U.S. Dollar Denominated Unsecured Debt                          
Debt Instrument [Line Items]                          
Debt issuance costs     $ 13,700                    
Notes due November 9, 2026 | U.S. Dollar Denominated Unsecured Debt                          
Debt Instrument [Line Items]                          
Total debt $ 650,000     $ 650,000                  
Interest rate (as percent) 1.50%     1.50%       1.50%          
Debt issuance amount               $ 650,000          
Notes due November 9, 2028 | U.S. Dollar Denominated Unsecured Debt                          
Debt Instrument [Line Items]                          
Total debt $ 550,000     $ 550,000                  
Interest rate (as percent) 1.95%     1.95%       1.95%          
Debt issuance amount               $ 550,000          
Notes due November 9, 2031 | U.S. Dollar Denominated Unsecured Debt                          
Debt Instrument [Line Items]                          
Total debt $ 550,000     $ 550,000                  
Interest rate (as percent) 2.25%     2.25%       2.25%          
Debt issuance amount               $ 550,000          
Notes Due November 9, 2026, November 9, 2028 and November 9, 2031 | U.S. Dollar Denominated Unsecured Debt                          
Debt Instrument [Line Items]                          
Debt issuance costs               $ 11,300          
v3.24.0.1
Notes Payable (Schedule of Maturities of Notes Payable) (Details)
$ in Thousands
Dec. 31, 2023
USD ($)
Debt Instrument [Line Items]  
2024 $ 810,496
2025 667,247
2026 1,150,138
2027 500,146
2028 1,200,129
Thereafter 4,825,634
Total debt $ 9,153,790
Weighted average effective rate 3.10%
Unsecured Debt  
Debt Instrument [Line Items]  
2024 $ 810,372
2025 667,116
2026 1,150,000
2027 500,000
2028 1,200,000
Thereafter 4,824,469
Total debt $ 9,151,957
Weighted average effective rate 3.10%
Mortgage Debt  
Debt Instrument [Line Items]  
2024 $ 124
2025 131
2026 138
2027 146
2028 129
Thereafter 1,165
Total debt $ 1,833
Weighted average effective rate 4.40%
v3.24.0.1
Noncontrolling Interests (Details) - Noncontrolling Interests
Dec. 31, 2023
shares
Noncontrolling Interest [Line Items]  
Convertible partnership units (in shares) 499,966
Partnership units conversion ratio 1
v3.24.0.1
Shareholders' Equity (Schedule of Preferred Shares) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Class of Stock [Line Items]    
Preferred stock, shares outstanding (in shares) 174,000 174,000
Liquidation Preference $ 4,350,000 $ 4,350,000
Series F Preferred Stock    
Class of Stock [Line Items]    
Earliest Redemption Date Jun. 02, 2022  
Dividend Rate 5.15%  
Preferred stock, shares outstanding (in shares) 11,200 11,200
Liquidation Preference $ 280,000 $ 280,000
Series G Preferred Stock    
Class of Stock [Line Items]    
Earliest Redemption Date Aug. 09, 2022  
Dividend Rate 5.05%  
Preferred stock, shares outstanding (in shares) 12,000 12,000
Liquidation Preference $ 300,000 $ 300,000
Series H Preferred Stock    
Class of Stock [Line Items]    
Earliest Redemption Date Mar. 11, 2024  
Dividend Rate 5.60%  
Preferred stock, shares outstanding (in shares) 11,400 11,400
Liquidation Preference $ 285,000 $ 285,000
Series I Preferred Stock    
Class of Stock [Line Items]    
Earliest Redemption Date Sep. 12, 2024  
Dividend Rate 4.875%  
Preferred stock, shares outstanding (in shares) 12,650 12,650
Liquidation Preference $ 316,250 $ 316,250
Series J Preferred Stock    
Class of Stock [Line Items]    
Earliest Redemption Date Nov. 15, 2024  
Dividend Rate 4.70%  
Preferred stock, shares outstanding (in shares) 10,350 10,350
Liquidation Preference $ 258,750 $ 258,750
Series K Preferred Stock    
Class of Stock [Line Items]    
Earliest Redemption Date Dec. 20, 2024  
Dividend Rate 4.75%  
Preferred stock, shares outstanding (in shares) 9,200 9,200
Liquidation Preference $ 230,000 $ 230,000
Series L Preferred Stock    
Class of Stock [Line Items]    
Earliest Redemption Date Jun. 17, 2025  
Dividend Rate 4.625%  
Preferred stock, shares outstanding (in shares) 22,600 22,600
Liquidation Preference $ 565,000 $ 565,000
Series M Preferred Stock    
Class of Stock [Line Items]    
Earliest Redemption Date Aug. 14, 2025  
Dividend Rate 4.125%  
Preferred stock, shares outstanding (in shares) 9,200 9,200
Liquidation Preference $ 230,000 $ 230,000
Series N Preferred Stock    
Class of Stock [Line Items]    
Earliest Redemption Date Oct. 06, 2025  
Dividend Rate 3.875%  
Preferred stock, shares outstanding (in shares) 11,300 11,300
Liquidation Preference $ 282,500 $ 282,500
Series O Preferred Stock    
Class of Stock [Line Items]    
Earliest Redemption Date Nov. 17, 2025  
Dividend Rate 3.90%  
Preferred stock, shares outstanding (in shares) 6,800 6,800
Liquidation Preference $ 170,000 $ 170,000
Series P Preferred Stock    
Class of Stock [Line Items]    
Earliest Redemption Date Jun. 16, 2026  
Dividend Rate 4.00%  
Preferred stock, shares outstanding (in shares) 24,150 24,150
Liquidation Preference $ 603,750 $ 603,750
Series Q Preferred Stock    
Class of Stock [Line Items]    
Earliest Redemption Date Aug. 17, 2026  
Dividend Rate 3.95%  
Preferred stock, shares outstanding (in shares) 5,750 5,750
Liquidation Preference $ 143,750 $ 143,750
Series R Preferred Stock    
Class of Stock [Line Items]    
Earliest Redemption Date Nov. 19, 2026  
Dividend Rate 4.00%  
Preferred stock, shares outstanding (in shares) 17,400 17,400
Liquidation Preference $ 435,000 $ 435,000
Series S Preferred Stock    
Class of Stock [Line Items]    
Earliest Redemption Date Jan. 13, 2027  
Dividend Rate 4.10%  
Preferred stock, shares outstanding (in shares) 10,000 10,000
Liquidation Preference $ 250,000 $ 250,000
v3.24.0.1
Shareholders' Equity (Narrative) (Details)
12 Months Ended
Feb. 04, 2023
$ / shares
Feb. 03, 2023
$ / shares
Aug. 04, 2022
$ / shares
Dec. 31, 2023
USD ($)
dividend
board_member
$ / shares
shares
Dec. 31, 2022
USD ($)
$ / shares
shares
Dec. 31, 2021
USD ($)
$ / shares
shares
Class of Stock [Line Items]            
Number of quarterly dividends in arrearage before preferred shareholders can elect additional board members | dividend       6    
Number of additional board members the preferred shareholders can elect in the case of an excess arrearage of quarterly dividends | board_member       2    
Amount of preferred dividends in arrears | $       $ 0    
Affirmative vote of outstanding shares of a series of Preferred Shares required for any material and adverse amendment to the terms of series, percent       66.67%    
Affirmative vote of outstanding shares of all Preferred Shares, voting as a single class, required to issue shares ranking senior to Preferred Shares, percent       66.67%    
Redemption price per share (in USD per share)       $ 25.00    
Number of shares authorized for repurchase (in shares) | shares       35,000,000    
Number of shares repurchased to date | shares       23,700,000    
Shares repurchased pursuant to authorization (in shares) | shares       0 0 0
Increase in regular common dividend (as percent) 50.00%          
Common stock, quarterly dividends (in USD per share) $ 3.00 $ 2.00        
Common stock, annual dividends (in USD per share) $ 12.00 $ 8.00        
Common stock dividends paid in aggregate | $       $ 2,111,000,000 $ 3,714,000,000 $ 1,402,000,000
Distributions to common shareholders and restricted share unitholders (in USD per share)       $ 12.00 $ 21.15 $ 8.00
Preferred share dividends | $       $ 194,700,000 $ 194,400,000 $ 186,600,000
Special Dividend            
Class of Stock [Line Items]            
Special cash dividend | $         $ 2,300,000,000  
Common stock, dividends, per share, cash paid (in USD per share)     $ 13.15      
v3.24.0.1
Shareholders' Equity (Schedule of Issuance and Repurchases of Common Shares) (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Class of Stock [Line Items]      
Gross Proceeds $ 0 $ 242,832 $ 1,147,455
Allocation of Income to Preferred Shares Holders in Connection with Redemption $ 0 $ 0 $ 28,914
Cumulative Preferred Shares      
Class of Stock [Line Items]      
Issuance price per share (in USD per share)   $ 25.00 $ 25.00
Preferred shares per depositary share (in shares)   0.001 0.001
Shares issued (in shares) 0    
Series S Preferred Stock      
Class of Stock [Line Items]      
Shares issued (in shares)   10,000  
Gross Proceeds   $ 250,000  
Issuance Costs   $ 7,168  
P, Q and R      
Class of Stock [Line Items]      
Shares issued (in shares)     47,300
Gross Proceeds     $ 1,182,500
Issuance Costs     35,045
C, D and E      
Class of Stock [Line Items]      
Aggregate Redemption Amount     875,000
Allocation of Income to Preferred Shares Holders in Connection with Redemption     $ 28,914
v3.24.0.1
Shareholders' Equity (Activity of Issuance of Common Shares) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Stockholders' Equity Note [Abstract]      
Employee stock-based compensation and exercise of stock options (in shares) 405,059 283,190 552,713
Employee stock-based compensation and exercise of stock options $ 53,386 $ 35,405 $ 95,860
v3.24.0.1
Shareholders' Equity (Schedule of Distribution Classification) (Details)
3 Months Ended
Dec. 31, 2023
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Stockholders' Equity Note [Abstract]        
Ordinary Dividends 100.00% 100.00% 100.00% 100.00%
Capital Gain Distributions 0.00% 0.00% 0.00% 0.00%
Total 100.00% 100.00% 100.00% 100.00%
v3.24.0.1
Related Party Transactions (Details)
$ in Millions
12 Months Ended
Dec. 31, 2023
USD ($)
storage_facility
adult_children
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Related Party Transaction [Line Items]      
Tenants reinsurance premiums earned by subsidiaries | $ $ 2.1 $ 2.2 $ 2.1
Hughes Owned Canadian Facilities | Canada | Related Party      
Related Party Transaction [Line Items]      
Number of self-storage facilities | storage_facility 65    
Number of Ms. Gustavson's adult children owning remaining equity in LLC | adult_children 2    
Ownership interest by parent 0.00%    
Tamara Hughes Gustavson | Hughes Owned Canadian Facilities | Canada | Related Party      
Related Party Transaction [Line Items]      
Ownership interest of noncontrolling owners (less than) 0.10%    
v3.24.0.1
Share-Based Compensation (Narrative) (Details) - USD ($)
$ in Thousands
12 Months Ended
Apr. 26, 2021
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Acceleration of share-based payment arrangement   $ 3,200 $ 14,900 $ 15,900
Share-based compensation expense   41,566 56,703 59,865
Compensation cost not yet recognized   $ 14,700    
Average remaining contractual lives (in years)   4 years    
Non-Management Trustee        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock options granted (in shares)   60,000    
Stock Options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Expiration period (in years)   10 years    
Share-based compensation expense   $ 14,900 $ 19,900 $ 25,100
Stock options outstanding, aggregate intrinsic value   $ 249,300    
Average remaining contractual lives (in years)   5 years    
Compensation recognition period (in years)   2 years    
Aggregate intrinsic value for stock options exercisable   $ 183,100    
Performance Target, Stock Options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock options granted (in shares)   117,168 77,683 245,000
Award performance period   3 years 3 years 3 years
Percentage of target options originally granted (as percent)   200.00% 200.00%  
Performance target (as percent)       125.00%
Percentage of total payout, target options originally granted (as percent)   150.00%    
Deferred Stock Units (DSUs)        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Granted (in shares)   2,085    
Granted DSUs (in shares)   867    
Restricted share units outstanding (in shares)   10,769 9,551  
Unrestricted Common Stock        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Granted (in shares)   884    
Minimum | Stock Options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period (in years)   3 years    
Maximum | Stock Options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period (in years)   5 years    
2021 Equity and Performance-Based Incentive Compensation Plan        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of additional shares authorized (in shares) 3,000,000      
Number of shares available for grant (in shares)   1,364,578    
v3.24.0.1
Share-Based Compensation (Schedule of Share-Based Compensation Expense) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Share-Based Payment Arrangement [Abstract]      
Share-based compensation cost capitalized $ 2,400 $ 4,100 $ 3,900
Share-based Payment Arrangement, Expensed, Amount [Line Items]      
Share-based compensation expense 41,566 56,703 59,865
Self-storage cost of operations      
Share-based Payment Arrangement, Expensed, Amount [Line Items]      
Share-based compensation expense 13,636 17,950 20,544
Ancillary cost of operations      
Share-based Payment Arrangement, Expensed, Amount [Line Items]      
Share-based compensation expense 1,289 888 1,561
Real estate acquisition and development expense      
Share-based Payment Arrangement, Expensed, Amount [Line Items]      
Share-based compensation expense 1,242 11,204 4,031
General and administrative      
Share-based Payment Arrangement, Expensed, Amount [Line Items]      
Share-based compensation expense $ 25,399 $ 26,661 $ 33,729
v3.24.0.1
Share-Based Compensation (Share-Based Payment Arrangement, Option, Activity) (Details) - $ / shares
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Number of Options      
Number of options outstanding, beginning balance (in shares) 3,164,483 3,039,951 2,961,167
Granted (in shares) 240,425 203,933 560,000
Special dividend adjustment (in shares)   104,348  
Exercised (in shares) (306,651) (183,749) (471,216)
Cancelled (in shares) (47,036) 0 (10,000)
Number of options outstanding, ending balance (in shares) 3,051,221 3,164,483 3,039,951
Number of options exercisable (in shares) 1,983,530    
Weighted Average Exercise Price per Share      
Number of options outstanding, beginning balance (in USD per share) $ 217.75 $ 216.04 $ 210.59
Granted (in USD per share) 270.79 331.46 234.29
Exercised (in USD per share) (173.26) (191.74) (203.30)
Cancelled (in USD per share) (245.86) 0 (228.94)
Number of options outstanding, ending balance (in USD per share) 225.97 $ 217.75 $ 216.04
Number of options exercisable (in USD per share) $ 213.55    
Service-Based      
Number of Options      
Number of options outstanding, beginning balance (in shares) 1,854,041 1,899,951 2,231,167
Granted (in shares) 60,000 65,000 140,000
Special dividend adjustment (in shares)   62,512  
Exercised (in shares) (272,250) (173,422) (471,216)
Cancelled (in shares) (12,049) 0 0
Number of options outstanding, ending balance (in shares) 1,629,742 1,854,041 1,899,951
Number of options exercisable (in shares) 1,475,764    
Weighted Average Exercise Price per Share      
Number of options outstanding, beginning balance (in USD per share) $ 209.53 $ 208.16 $ 204.60
Granted (in USD per share) 286.81 398.97 248.54
Exercised (in USD per share) (167.15) (189.95) (203.30)
Cancelled (in USD per share) (293.81) 0 0
Number of options outstanding, ending balance (in USD per share) 218.83 $ 209.53 $ 208.16
Number of options exercisable (in USD per share) $ 210.75    
Performance-Based      
Number of Options      
Number of options outstanding, beginning balance (in shares) 1,310,442 1,140,000 730,000
Granted (in shares) 180,423 138,933 420,000
Special dividend adjustment (in shares)   41,836  
Exercised (in shares) (34,401) (10,327) 0
Cancelled (in shares) (34,987) 0 (10,000)
Number of options outstanding, ending balance (in shares) 1,421,477 1,310,442 1,140,000
Number of options exercisable (in shares) 507,766    
Weighted Average Exercise Price per Share      
Number of options outstanding, beginning balance (in USD per share) $ 229.39 $ 229.16 $ 228.94
Granted (in USD per share) 265.46 299.88 229.53
Exercised (in USD per share) (221.68) (221.68) 0
Cancelled (in USD per share) (229.34) 0 (228.94)
Number of options outstanding, ending balance (in USD per share) 234.16 $ 229.39 $ 229.16
Number of options exercisable (in USD per share) $ 221.68    
v3.24.0.1
Share-Based Compensation (Share-Based Compensation Valuation Assumptions) (Details)
$ / shares in Units, $ in Thousands
12 Months Ended
Aug. 04, 2022
$ / shares
Dec. 31, 2023
USD ($)
$ / shares
shares
Dec. 31, 2022
USD ($)
$ / shares
shares
Dec. 31, 2021
USD ($)
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Aggregate exercise date intrinsic value of options exercised during the year | $   $ 35,662 $ 27,210 $ 44,613
Average estimated value of options granted during the year (in USD per share) | $ / shares   $ 56.86 $ 87.57 $ 62.66
Anti-dilution adjustments of outstanding stock options, conversion ratio 1.03275      
Special Dividend        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Common stock, dividends, per share, cash paid (in USD per share) | $ / shares $ 13.15      
Share-Based Payment Arrangement, Option, Valued With Black-Scholes Method        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Expected life of options in years, based upon historical experience (in years)   6 years 6 years 5 years
Risk-free interest rate   3.50% 2.90% 0.80%
Expected volatility, based upon historical volatility   24.40% 22.90% 24.10%
Expected dividend yield   4.20% 2.00% 2.90%
Share-Based Payment Arrangement, Option, Valued With Monte-Carlo Simulation Method        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Expected life of options in years, based upon historical experience (in years)   7 years 7 years 5 years
Risk-free interest rate   3.50% 1.80% 0.90%
Expected volatility, based upon historical volatility   23.80% 22.60% 26.50%
Expected dividend yield   4.10% 2.30% 2.90%
Performance-Based        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock options granted (in shares) | shares     61,250 180,000
Stock option granted for payout adjustments (in shares) | shares   63,257    
v3.24.0.1
Share-Based Compensation (Restricted Share Units) (Narrative) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based compensation expense $ 41,566 $ 56,703 $ 59,865
Restricted Share Units      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based compensation expense $ 28,200 $ 39,900 $ 37,600
Granted (in shares) 115,185 73,560 189,318
Unrecognized compensation cost $ 72,500    
Compensation recognition period (in years) 3 years    
Performance Target, Restricted Share Units      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Granted (in shares) 37,211 21,985 37,000
Award performance period 3 years 3 years  
Percentage of target options originally granted (as percent) 200.00% 200.00%  
Performance target (as percent) 125.00%    
Minimum | Restricted Share Units      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period (in years) 5 years    
Maximum | Restricted Share Units      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period (in years) 8 years    
v3.24.0.1
Share-Based Compensation (Share-Based Compensation Restricted Units) (Details) - $ / shares
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Service-Based      
Number of Restricted Share Units      
Restricted share units outstanding, beginning balance (in shares) 407,812 524,572 552,788
Granted (in shares) 77,974 51,575 143,068
Vested (in shares) (132,909) (146,138) (138,420)
Forfeited (in shares) (30,229) (22,197) (32,864)
Restricted share units outstanding, ending balance (in shares) 322,648 407,812 524,572
Weighted-Average Grant-Date Fair Value      
Restricted share units outstanding, beginning balance (in USD per share) $ 258.34 $ 249.90 $ 218.11
Granted (in USD per share) 296.19 293.43 336.06
Vested (in USD per share) (245.19) (240.71) (216.63)
Forfeited (in USD per share) (266.60) (256.50) (221.32)
Restricted share units outstanding, ending balance (in USD per share) $ 272.14 $ 258.34 $ 249.90
Performance-Based      
Number of Restricted Share Units      
Restricted share units outstanding, beginning balance (in shares) 68,235 46,250 0
Granted (in shares) 37,211 21,985 46,250
Vested (in shares) (9,250)    
Forfeited (in shares) (2,183)    
Restricted share units outstanding, ending balance (in shares) 94,013 68,235 46,250
Weighted-Average Grant-Date Fair Value      
Restricted share units outstanding, beginning balance (in USD per share) $ 336.33 $ 275.12 $ 0
Granted (in USD per share) 295.61 465.11 275.12
Vested (in USD per share) (275.12)    
Forfeited (in USD per share) (300.86)    
Restricted share units outstanding, ending balance (in USD per share) $ 327.06 $ 336.33 $ 275.12
Restricted Share Units      
Number of Restricted Share Units      
Restricted share units outstanding, beginning balance (in shares) 476,047 570,822 552,788
Granted (in shares) 115,185 73,560 189,318
Vested (in shares) (142,159) (146,138) (138,420)
Forfeited (in shares) (32,412) (22,197) (32,864)
Restricted share units outstanding, ending balance (in shares) 416,661 476,047 570,822
Weighted-Average Grant-Date Fair Value      
Restricted share units outstanding, beginning balance (in USD per share) $ 269.52 $ 251.95 $ 218.11
Granted (in USD per share) 296.01 344.74 321.17
Vested (in USD per share) (247.13) (240.71) (216.63)
Forfeited (in USD per share) (268.91) (256.50) (221.32)
Restricted share units outstanding, ending balance (in USD per share) $ 284.53 $ 269.52 $ 251.95
v3.24.0.1
Share-Based Compensation (Schedule of Share-Based Payment Award, Restricted Stock Units, Valuation Assumptions) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Restricted Share Units      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Fair value of vested shares on vesting date $ 41,999 $ 47,244 $ 37,430
Cash paid for taxes upon vesting in lieu of issuing common shares $ 13,950 $ 16,827 $ 13,069
Common shares issued upon vesting (in shares) 96,657 99,009 81,325
Time from the valuation date to the end of the Performance Period (in years) 3 years 3 years  
Risk-free interest rate 3.80% 1.60%  
Expected volatility, based upon historical volatility 28.20% 26.50%  
Expected dividend yield 4.10% 2.30%  
Granted (in shares) 115,185 73,560 189,318
Performance-Based Restricted Stock Units Adjustment      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Granted (in shares)     9,250
v3.24.0.1
Net Income per Common Share (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Earnings Per Share [Abstract]      
Antidilutive securities excluded from computation of earnings per share (in shares) 375,577 147,344  
Numerator for basic and dilutive net income per common share – net income allocable to common shareholders $ 1,948,741 $ 4,142,288 $ 1,732,444
Denominator for basic net income per share - weighted average common shares outstanding (in shares) 175,472,000 175,257,000 174,858,000
Net effect of dilutive stock options - based on treasury stock method (in shares) 671,000 1,023,000 710,000
Denominator for dilutive net income per share - weighted average common shares outstanding (in shares) 176,143,000 176,280,000 175,568,000
Basic (in USD per share) $ 11.11 $ 23.64 $ 9.91
Diluted (in USD per share) $ 11.06 $ 23.50 $ 9.87
v3.24.0.1
Segment Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Segment Reporting Information [Line Items]      
Revenue $ 4,517,690 $ 4,182,163 $ 3,415,824
Depreciation and amortization (970,056) (888,146) (713,428)
Real estate acquisition and development expense (26,451) (28,744) (12,923)
General and administrative (80,632) (71,672) (75,966)
Interest and other income 85,590 40,567 12,306
Interest expense (201,132) (136,319) (90,774)
Equity in earnings of unconsolidated real estate entities 27,897 106,981 232,093
Foreign currency exchange (loss) gain (51,197) 98,314 111,787
Gain on sale of real estate 17,178 1,503 13,683
Gain on sale of equity investment in PS Business Parks, Inc. 0 2,128,860 0
Income tax expense (10,821) (14,326) (12,365)
Net income 2,160,120 4,366,274 1,959,639
Operating Segments      
Segment Reporting Information [Line Items]      
Net income 2,399,688 2,241,110 1,781,798
Segment Reconciling Items      
Segment Reporting Information [Line Items]      
Real estate acquisition and development expense (26,451) (28,744) (12,923)
General and administrative (80,632) (71,672) (75,966)
Interest and other income 85,590 40,567 12,306
Interest expense (201,132) (136,319) (90,774)
Equity in earnings of unconsolidated real estate entities 27,897 106,981 232,093
Foreign currency exchange (loss) gain (51,197) 98,314 111,787
Gain on sale of real estate 17,178 1,503 13,683
Gain on sale of equity investment in PS Business Parks, Inc. 0 2,128,860 0
Income tax expense (10,821) (14,326) (12,365)
Self-Storage Operations Reportable Segment | Operating Segments      
Segment Reporting Information [Line Items]      
Revenue 4,259,613 3,946,028 3,203,566
Cost of operations (1,061,950) (980,209) (852,030)
Net operating income 3,197,663 2,965,819 2,351,536
Depreciation and amortization (970,056) (888,146) (713,428)
Net income 2,227,607 2,077,673 1,638,108
Ancillary Operations | Operating Segments      
Segment Reporting Information [Line Items]      
Revenue 258,077 236,135 212,258
Net operating income 172,081 163,437 143,690
Cost of operations $ (85,996) $ (72,698) $ (68,568)
v3.24.0.1
Commitments and Contingencies (Details)
certificate in Millions
Dec. 31, 2023
USD ($)
certificate
Commitments and Contingencies Disclosure [Abstract]  
Deductible for general liability $ 2,000,000
Deductible for property loss 25,000,000
Reduced deductible for property loss 5,000,000
Aggregate loss threshold for reduced deductible for property loss 35,000,000
Minimum loss per occurrence to reach aggregate loss threshold for reduced deductible for property loss 5,000,000
Aggregate limit for property loss coverage 75,000,000
Aggregate limit for general liability coverage 102,000,000
Tenant insurance program against claims, maximum amount 5,000
Third-party insurance coverage for claims paid exceeding amount for individual event 15,000,000
Third-party limit for insurance coverage claims paid for individual event $ 5,000,000
Number of tenant certificate holders participating in insurance program, approximate | certificate 1.3
Aggregate coverage of tenants participating in insurance program $ 6,200,000,000
Construction commitments 164,800,000
Construction commitments 2024 149,300,000
Construction commitments 2025 15,500,000
Various lease commitments 65,400,000
Various lease commitments 2024 4,000,000
Various lease commitments 2025 4,000,000
Various lease commitments 2026 4,000,000
Various lease commitments 2027 2,600,000
Various lease commitments 2028 2,500,000
Various lease commitments thereafter $ 48,300,000
v3.24.0.1
SCHEDULE III - REAL ESTATE AND ACCUMULATED DEPRECIATION (Details)
ft² in Thousands, $ in Thousands
Dec. 31, 2023
USD ($)
ft²
storage_facility
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 3,044
Net Rentable Square Feet | ft² 218,071
2023 Encum- brances $ 1,833
Initial Cost, Land 5,542,781
Initial Cost, Building & Improvements 17,177,947
Costs Subsequent to Acquisition 4,744,510
Gross Carrying Amount, Land 5,628,488
Gross Carrying Amount, Buildings 21,836,750
Gross Carrying Amount, Total 27,465,238
Accumulated Depreciation $ 9,423,974
Minimum  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
Estimated useful lives of buildings and improvements (in years) 5 years
Maximum  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
Estimated useful lives of buildings and improvements (in years) 25 years
Commercial and non-operating real estate  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
2023 Encum- brances $ 0
Initial Cost, Land 13,194
Initial Cost, Building & Improvements 26,143
Costs Subsequent to Acquisition 136,325
Gross Carrying Amount, Land 13,348
Gross Carrying Amount, Buildings 162,314
Gross Carrying Amount, Total 175,662
Accumulated Depreciation $ 69,331
Los Angeles | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 230
Net Rentable Square Feet | ft² 17,257
2023 Encum- brances $ 306
Initial Cost, Land 559,185
Initial Cost, Building & Improvements 1,068,073
Costs Subsequent to Acquisition 541,531
Gross Carrying Amount, Land 565,340
Gross Carrying Amount, Buildings 1,603,449
Gross Carrying Amount, Total 2,168,789
Accumulated Depreciation $ 994,124
Dallas/Ft. Worth | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 211
Net Rentable Square Feet | ft² 18,907
2023 Encum- brances $ 0
Initial Cost, Land 361,873
Initial Cost, Building & Improvements 2,184,105
Costs Subsequent to Acquisition 256,575
Gross Carrying Amount, Land 364,101
Gross Carrying Amount, Buildings 2,438,452
Gross Carrying Amount, Total 2,802,553
Accumulated Depreciation $ 521,797
Houston | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 165
Net Rentable Square Feet | ft² 13,894
2023 Encum- brances $ 0
Initial Cost, Land 272,737
Initial Cost, Building & Improvements 902,137
Costs Subsequent to Acquisition 303,823
Gross Carrying Amount, Land 272,058
Gross Carrying Amount, Buildings 1,206,639
Gross Carrying Amount, Total 1,478,697
Accumulated Depreciation $ 422,909
Chicago | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 143
Net Rentable Square Feet | ft² 9,310
2023 Encum- brances $ 0
Initial Cost, Land 156,554
Initial Cost, Building & Improvements 519,539
Costs Subsequent to Acquisition 170,469
Gross Carrying Amount, Land 159,391
Gross Carrying Amount, Buildings 687,171
Gross Carrying Amount, Total 846,562
Accumulated Depreciation $ 449,618
San Francisco | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 141
Net Rentable Square Feet | ft² 9,197
2023 Encum- brances $ 0
Initial Cost, Land 245,623
Initial Cost, Building & Improvements 557,398
Costs Subsequent to Acquisition 319,345
Gross Carrying Amount, Land 258,373
Gross Carrying Amount, Buildings 863,993
Gross Carrying Amount, Total 1,122,366
Accumulated Depreciation $ 591,695
Washington DC | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 119
Net Rentable Square Feet | ft² 8,458
2023 Encum- brances $ 0
Initial Cost, Land 423,176
Initial Cost, Building & Improvements 1,329,933
Costs Subsequent to Acquisition 213,344
Gross Carrying Amount, Land 438,682
Gross Carrying Amount, Buildings 1,527,771
Gross Carrying Amount, Total 1,966,453
Accumulated Depreciation $ 502,381
Atlanta | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 115
Net Rentable Square Feet | ft² 7,710
2023 Encum- brances $ 1,527
Initial Cost, Land 143,692
Initial Cost, Building & Improvements 434,433
Costs Subsequent to Acquisition 120,141
Gross Carrying Amount, Land 144,055
Gross Carrying Amount, Buildings 554,211
Gross Carrying Amount, Total 698,266
Accumulated Depreciation $ 331,367
Orlando/Daytona | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 109
Net Rentable Square Feet | ft² 6,430
2023 Encum- brances $ 0
Initial Cost, Land 174,624
Initial Cost, Building & Improvements 573,412
Costs Subsequent to Acquisition 92,255
Gross Carrying Amount, Land 180,105
Gross Carrying Amount, Buildings 660,186
Gross Carrying Amount, Total 840,291
Accumulated Depreciation $ 214,161
New York | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 106
Net Rentable Square Feet | ft² 7,892
2023 Encum- brances $ 0
Initial Cost, Land 314,288
Initial Cost, Building & Improvements 736,217
Costs Subsequent to Acquisition 299,222
Gross Carrying Amount, Land 320,626
Gross Carrying Amount, Buildings 1,029,101
Gross Carrying Amount, Total 1,349,727
Accumulated Depreciation $ 584,340
Seattle/Tacoma | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 102
Net Rentable Square Feet | ft² 7,266
2023 Encum- brances $ 0
Initial Cost, Land 246,108
Initial Cost, Building & Improvements 634,810
Costs Subsequent to Acquisition 218,764
Gross Carrying Amount, Land 248,369
Gross Carrying Amount, Buildings 851,313
Gross Carrying Amount, Total 1,099,682
Accumulated Depreciation $ 447,887
Miami | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 100
Net Rentable Square Feet | ft² 7,508
2023 Encum- brances $ 0
Initial Cost, Land 259,200
Initial Cost, Building & Improvements 563,334
Costs Subsequent to Acquisition 183,251
Gross Carrying Amount, Land 261,093
Gross Carrying Amount, Buildings 744,692
Gross Carrying Amount, Total 1,005,785
Accumulated Depreciation $ 431,641
Denver | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 70
Net Rentable Square Feet | ft² 5,290
2023 Encum- brances $ 0
Initial Cost, Land 120,117
Initial Cost, Building & Improvements 323,262
Costs Subsequent to Acquisition 115,449
Gross Carrying Amount, Land 120,838
Gross Carrying Amount, Buildings 437,990
Gross Carrying Amount, Total 558,828
Accumulated Depreciation $ 204,831
Minneapolis/St. Paul | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 68
Net Rentable Square Feet | ft² 5,456
2023 Encum- brances $ 0
Initial Cost, Land 128,142
Initial Cost, Building & Improvements 332,631
Costs Subsequent to Acquisition 141,412
Gross Carrying Amount, Land 131,696
Gross Carrying Amount, Buildings 470,489
Gross Carrying Amount, Total 602,185
Accumulated Depreciation $ 186,863
Philadelphia | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 67
Net Rentable Square Feet | ft² 4,484
2023 Encum- brances $ 0
Initial Cost, Land 66,271
Initial Cost, Building & Improvements 297,576
Costs Subsequent to Acquisition 95,223
Gross Carrying Amount, Land 65,292
Gross Carrying Amount, Buildings 393,778
Gross Carrying Amount, Total 459,070
Accumulated Depreciation $ 202,399
Charlotte | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 66
Net Rentable Square Feet | ft² 4,587
2023 Encum- brances $ 0
Initial Cost, Land 103,717
Initial Cost, Building & Improvements 353,560
Costs Subsequent to Acquisition 94,617
Gross Carrying Amount, Land 107,030
Gross Carrying Amount, Buildings 444,864
Gross Carrying Amount, Total 551,894
Accumulated Depreciation $ 172,976
Tampa | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 62
Net Rentable Square Feet | ft² 4,752
2023 Encum- brances $ 0
Initial Cost, Land 89,937
Initial Cost, Building & Improvements 250,135
Costs Subsequent to Acquisition 95,517
Gross Carrying Amount, Land 97,800
Gross Carrying Amount, Buildings 337,789
Gross Carrying Amount, Total 435,589
Accumulated Depreciation $ 173,600
Detroit | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 54
Net Rentable Square Feet | ft² 3,963
2023 Encum- brances $ 0
Initial Cost, Land 77,077
Initial Cost, Building & Improvements 289,354
Costs Subsequent to Acquisition 73,053
Gross Carrying Amount, Land 78,483
Gross Carrying Amount, Buildings 361,001
Gross Carrying Amount, Total 439,484
Accumulated Depreciation $ 155,132
Phoenix | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 53
Net Rentable Square Feet | ft² 3,825
2023 Encum- brances $ 0
Initial Cost, Land 108,051
Initial Cost, Building & Improvements 367,874
Costs Subsequent to Acquisition 48,863
Gross Carrying Amount, Land 108,042
Gross Carrying Amount, Buildings 416,746
Gross Carrying Amount, Total 524,788
Accumulated Depreciation $ 156,365
Baltimore | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 50
Net Rentable Square Feet | ft² 3,919
2023 Encum- brances $ 0
Initial Cost, Land 136,598
Initial Cost, Building & Improvements 775,086
Costs Subsequent to Acquisition 58,286
Gross Carrying Amount, Land 136,722
Gross Carrying Amount, Buildings 833,248
Gross Carrying Amount, Total 969,970
Accumulated Depreciation $ 167,074
Portland | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 50
Net Rentable Square Feet | ft² 2,917
2023 Encum- brances $ 0
Initial Cost, Land 65,013
Initial Cost, Building & Improvements 225,043
Costs Subsequent to Acquisition 55,281
Gross Carrying Amount, Land 65,671
Gross Carrying Amount, Buildings 279,666
Gross Carrying Amount, Total 345,337
Accumulated Depreciation $ 138,095
Oklahoma City | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 48
Net Rentable Square Feet | ft² 3,493
2023 Encum- brances $ 0
Initial Cost, Land 69,100
Initial Cost, Building & Improvements 310,648
Costs Subsequent to Acquisition 28,922
Gross Carrying Amount, Land 69,100
Gross Carrying Amount, Buildings 339,570
Gross Carrying Amount, Total 408,670
Accumulated Depreciation $ 49,755
West Palm Beach | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 46
Net Rentable Square Feet | ft² 3,833
2023 Encum- brances $ 0
Initial Cost, Land 156,788
Initial Cost, Building & Improvements 221,479
Costs Subsequent to Acquisition 119,973
Gross Carrying Amount, Land 157,496
Gross Carrying Amount, Buildings 340,744
Gross Carrying Amount, Total 498,240
Accumulated Depreciation $ 177,442
San Antonio | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 40
Net Rentable Square Feet | ft² 2,827
2023 Encum- brances $ 0
Initial Cost, Land 54,753
Initial Cost, Building & Improvements 224,313
Costs Subsequent to Acquisition 40,978
Gross Carrying Amount, Land 54,711
Gross Carrying Amount, Buildings 265,333
Gross Carrying Amount, Total 320,044
Accumulated Depreciation $ 95,103
Austin | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 39
Net Rentable Square Feet | ft² 3,123
2023 Encum- brances $ 0
Initial Cost, Land 72,382
Initial Cost, Building & Improvements 212,110
Costs Subsequent to Acquisition 56,840
Gross Carrying Amount, Land 74,404
Gross Carrying Amount, Buildings 266,928
Gross Carrying Amount, Total 341,332
Accumulated Depreciation $ 119,942
Raleigh | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 39
Net Rentable Square Feet | ft² 2,813
2023 Encum- brances $ 0
Initial Cost, Land 90,683
Initial Cost, Building & Improvements 224,341
Costs Subsequent to Acquisition 49,943
Gross Carrying Amount, Land 91,672
Gross Carrying Amount, Buildings 273,295
Gross Carrying Amount, Total 364,967
Accumulated Depreciation $ 94,764
Indianapolis | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 37
Net Rentable Square Feet | ft² 2,450
2023 Encum- brances $ 0
Initial Cost, Land 46,160
Initial Cost, Building & Improvements 171,251
Costs Subsequent to Acquisition 31,225
Gross Carrying Amount, Land 47,160
Gross Carrying Amount, Buildings 201,476
Gross Carrying Amount, Total 248,636
Accumulated Depreciation $ 65,018
Norfolk | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 36
Net Rentable Square Feet | ft² 2,199
2023 Encum- brances $ 0
Initial Cost, Land 47,939
Initial Cost, Building & Improvements 125,410
Costs Subsequent to Acquisition 34,521
Gross Carrying Amount, Land 47,378
Gross Carrying Amount, Buildings 160,492
Gross Carrying Amount, Total 207,870
Accumulated Depreciation $ 89,683
Sacramento | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 36
Net Rentable Square Feet | ft² 2,120
2023 Encum- brances $ 0
Initial Cost, Land 32,023
Initial Cost, Building & Improvements 92,323
Costs Subsequent to Acquisition 44,386
Gross Carrying Amount, Land 32,507
Gross Carrying Amount, Buildings 136,225
Gross Carrying Amount, Total 168,732
Accumulated Depreciation $ 96,150
Columbia | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 35
Net Rentable Square Feet | ft² 2,236
2023 Encum- brances $ 0
Initial Cost, Land 39,521
Initial Cost, Building & Improvements 165,797
Costs Subsequent to Acquisition 26,242
Gross Carrying Amount, Land 40,280
Gross Carrying Amount, Buildings 191,280
Gross Carrying Amount, Total 231,560
Accumulated Depreciation $ 53,940
Columbus | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 32
Net Rentable Square Feet | ft² 2,443
2023 Encum- brances $ 0
Initial Cost, Land 55,843
Initial Cost, Building & Improvements 143,208
Costs Subsequent to Acquisition 33,589
Gross Carrying Amount, Land 55,950
Gross Carrying Amount, Buildings 176,690
Gross Carrying Amount, Total 232,640
Accumulated Depreciation $ 61,850
Kansas City | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 31
Net Rentable Square Feet | ft² 2,121
2023 Encum- brances $ 0
Initial Cost, Land 20,212
Initial Cost, Building & Improvements 114,080
Costs Subsequent to Acquisition 54,757
Gross Carrying Amount, Land 20,412
Gross Carrying Amount, Buildings 168,637
Gross Carrying Amount, Total 189,049
Accumulated Depreciation $ 75,990
Boston | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 29
Net Rentable Square Feet | ft² 2,038
2023 Encum- brances $ 0
Initial Cost, Land 85,717
Initial Cost, Building & Improvements 223,625
Costs Subsequent to Acquisition 42,014
Gross Carrying Amount, Land 86,283
Gross Carrying Amount, Buildings 265,073
Gross Carrying Amount, Total 351,356
Accumulated Depreciation $ 136,437
St. Louis | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 27
Net Rentable Square Feet | ft² 1,749
2023 Encum- brances $ 0
Initial Cost, Land 22,546
Initial Cost, Building & Improvements 85,838
Costs Subsequent to Acquisition 40,671
Gross Carrying Amount, Land 23,395
Gross Carrying Amount, Buildings 125,660
Gross Carrying Amount, Total 149,055
Accumulated Depreciation $ 77,098
Las Vegas | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 26
Net Rentable Square Feet | ft² 1,743
2023 Encum- brances $ 0
Initial Cost, Land 32,147
Initial Cost, Building & Improvements 129,839
Costs Subsequent to Acquisition 24,005
Gross Carrying Amount, Land 31,395
Gross Carrying Amount, Buildings 154,596
Gross Carrying Amount, Total 185,991
Accumulated Depreciation $ 64,709
San Diego | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 24
Net Rentable Square Feet | ft² 2,183
2023 Encum- brances $ 0
Initial Cost, Land 89,782
Initial Cost, Building & Improvements 162,043
Costs Subsequent to Acquisition 54,101
Gross Carrying Amount, Land 92,292
Gross Carrying Amount, Buildings 213,634
Gross Carrying Amount, Total 305,926
Accumulated Depreciation $ 121,509
Nashville/Bowling Green | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 22
Net Rentable Square Feet | ft² 1,435
2023 Encum- brances $ 0
Initial Cost, Land 31,362
Initial Cost, Building & Improvements 100,045
Costs Subsequent to Acquisition 33,215
Gross Carrying Amount, Land 31,360
Gross Carrying Amount, Buildings 133,262
Gross Carrying Amount, Total 164,622
Accumulated Depreciation $ 41,120
Memphis | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 22
Net Rentable Square Feet | ft² 1,418
2023 Encum- brances $ 0
Initial Cost, Land 27,627
Initial Cost, Building & Improvements 167,899
Costs Subsequent to Acquisition 15,346
Gross Carrying Amount, Land 28,980
Gross Carrying Amount, Buildings 181,892
Gross Carrying Amount, Total 210,872
Accumulated Depreciation $ 28,898
Cincinnati | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 21
Net Rentable Square Feet | ft² 1,241
2023 Encum- brances $ 0
Initial Cost, Land 19,385
Initial Cost, Building & Improvements 67,782
Costs Subsequent to Acquisition 29,599
Gross Carrying Amount, Land 19,303
Gross Carrying Amount, Buildings 97,463
Gross Carrying Amount, Total 116,766
Accumulated Depreciation $ 41,676
Mobile | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 19
Net Rentable Square Feet | ft² 1,097
2023 Encum- brances $ 0
Initial Cost, Land 24,147
Initial Cost, Building & Improvements 95,838
Costs Subsequent to Acquisition 9,590
Gross Carrying Amount, Land 23,974
Gross Carrying Amount, Buildings 105,601
Gross Carrying Amount, Total 129,575
Accumulated Depreciation $ 20,429
Colorado Springs | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 17
Net Rentable Square Feet | ft² 1,172
2023 Encum- brances $ 0
Initial Cost, Land 13,667
Initial Cost, Building & Improvements 64,569
Costs Subsequent to Acquisition 26,394
Gross Carrying Amount, Land 13,664
Gross Carrying Amount, Buildings 90,966
Gross Carrying Amount, Total 104,630
Accumulated Depreciation $ 38,685
Fort Myers/Naples | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 16
Net Rentable Square Feet | ft² 1,209
2023 Encum- brances $ 0
Initial Cost, Land 33,789
Initial Cost, Building & Improvements 113,782
Costs Subsequent to Acquisition 12,180
Gross Carrying Amount, Land 34,023
Gross Carrying Amount, Buildings 125,728
Gross Carrying Amount, Total 159,751
Accumulated Depreciation $ 31,735
Greensville/Spartanburg/Asheville | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 16
Net Rentable Square Feet | ft² 998
2023 Encum- brances $ 0
Initial Cost, Land 12,910
Initial Cost, Building & Improvements 68,856
Costs Subsequent to Acquisition 12,940
Gross Carrying Amount, Land 13,826
Gross Carrying Amount, Buildings 80,880
Gross Carrying Amount, Total 94,706
Accumulated Depreciation $ 28,410
Louisville | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 16
Net Rentable Square Feet | ft² 970
2023 Encum- brances $ 0
Initial Cost, Land 24,868
Initial Cost, Building & Improvements 50,185
Costs Subsequent to Acquisition 10,346
Gross Carrying Amount, Land 24,867
Gross Carrying Amount, Buildings 60,532
Gross Carrying Amount, Total 85,399
Accumulated Depreciation $ 24,018
Richmond | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 16
Net Rentable Square Feet | ft² 808
2023 Encum- brances $ 0
Initial Cost, Land 21,121
Initial Cost, Building & Improvements 56,202
Costs Subsequent to Acquisition 10,092
Gross Carrying Amount, Land 20,926
Gross Carrying Amount, Buildings 66,489
Gross Carrying Amount, Total 87,415
Accumulated Depreciation $ 27,542
Milwaukee | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 15
Net Rentable Square Feet | ft² 964
2023 Encum- brances $ 0
Initial Cost, Land 13,189
Initial Cost, Building & Improvements 32,071
Costs Subsequent to Acquisition 11,262
Gross Carrying Amount, Land 13,158
Gross Carrying Amount, Buildings 43,364
Gross Carrying Amount, Total 56,522
Accumulated Depreciation $ 38,449
Jacksonville | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 15
Net Rentable Square Feet | ft² 922
2023 Encum- brances $ 0
Initial Cost, Land 14,454
Initial Cost, Building & Improvements 47,415
Costs Subsequent to Acquisition 16,595
Gross Carrying Amount, Land 14,503
Gross Carrying Amount, Buildings 63,961
Gross Carrying Amount, Total 78,464
Accumulated Depreciation $ 40,554
Greensboro | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 15
Net Rentable Square Feet | ft² 911
2023 Encum- brances $ 0
Initial Cost, Land 15,590
Initial Cost, Building & Improvements 43,181
Costs Subsequent to Acquisition 16,298
Gross Carrying Amount, Land 17,679
Gross Carrying Amount, Buildings 57,390
Gross Carrying Amount, Total 75,069
Accumulated Depreciation $ 33,648
Birmingham | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 15
Net Rentable Square Feet | ft² 606
2023 Encum- brances $ 0
Initial Cost, Land 6,316
Initial Cost, Building & Improvements 25,567
Costs Subsequent to Acquisition 16,677
Gross Carrying Amount, Land 6,204
Gross Carrying Amount, Buildings 42,356
Gross Carrying Amount, Total 48,560
Accumulated Depreciation $ 31,601
Charleston | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 14
Net Rentable Square Feet | ft² 978
2023 Encum- brances $ 0
Initial Cost, Land 16,947
Initial Cost, Building & Improvements 56,793
Costs Subsequent to Acquisition 26,117
Gross Carrying Amount, Land 17,923
Gross Carrying Amount, Buildings 81,934
Gross Carrying Amount, Total 99,857
Accumulated Depreciation $ 36,810
Chattanooga | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 13
Net Rentable Square Feet | ft² 846
2023 Encum- brances $ 0
Initial Cost, Land 10,030
Initial Cost, Building & Improvements 45,578
Costs Subsequent to Acquisition 9,066
Gross Carrying Amount, Land 9,832
Gross Carrying Amount, Buildings 54,842
Gross Carrying Amount, Total 64,674
Accumulated Depreciation $ 21,705
Salt Lake City | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 13
Net Rentable Square Feet | ft² 802
2023 Encum- brances $ 0
Initial Cost, Land 20,454
Initial Cost, Building & Improvements 41,607
Costs Subsequent to Acquisition 6,647
Gross Carrying Amount, Land 20,103
Gross Carrying Amount, Buildings 48,605
Gross Carrying Amount, Total 68,708
Accumulated Depreciation $ 18,945
Honolulu | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 12
Net Rentable Square Feet | ft² 896
2023 Encum- brances $ 0
Initial Cost, Land 69,611
Initial Cost, Building & Improvements 127,041
Costs Subsequent to Acquisition 23,033
Gross Carrying Amount, Land 70,528
Gross Carrying Amount, Buildings 149,157
Gross Carrying Amount, Total 219,685
Accumulated Depreciation $ 85,116
New Orleans | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 12
Net Rentable Square Feet | ft² 861
2023 Encum- brances $ 0
Initial Cost, Land 14,096
Initial Cost, Building & Improvements 72,425
Costs Subsequent to Acquisition 13,077
Gross Carrying Amount, Land 14,264
Gross Carrying Amount, Buildings 85,334
Gross Carrying Amount, Total 99,598
Accumulated Depreciation $ 34,714
Savannah | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 12
Net Rentable Square Feet | ft² 700
2023 Encum- brances $ 0
Initial Cost, Land 33,094
Initial Cost, Building & Improvements 42,465
Costs Subsequent to Acquisition 5,987
Gross Carrying Amount, Land 31,766
Gross Carrying Amount, Buildings 49,780
Gross Carrying Amount, Total 81,546
Accumulated Depreciation $ 25,473
Omaha | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 11
Net Rentable Square Feet | ft² 940
2023 Encum- brances $ 0
Initial Cost, Land 17,965
Initial Cost, Building & Improvements 69,085
Costs Subsequent to Acquisition 5,467
Gross Carrying Amount, Land 17,965
Gross Carrying Amount, Buildings 74,552
Gross Carrying Amount, Total 92,517
Accumulated Depreciation $ 13,693
Hartford/New Haven | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 11
Net Rentable Square Feet | ft² 693
2023 Encum- brances $ 0
Initial Cost, Land 6,778
Initial Cost, Building & Improvements 19,959
Costs Subsequent to Acquisition 27,641
Gross Carrying Amount, Land 8,443
Gross Carrying Amount, Buildings 45,935
Gross Carrying Amount, Total 54,378
Accumulated Depreciation $ 37,212
Cleveland/Akron | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 10
Net Rentable Square Feet | ft² 631
2023 Encum- brances $ 0
Initial Cost, Land 5,916
Initial Cost, Building & Improvements 30,775
Costs Subsequent to Acquisition 9,494
Gross Carrying Amount, Land 6,309
Gross Carrying Amount, Buildings 39,876
Gross Carrying Amount, Total 46,185
Accumulated Depreciation $ 16,296
Augusta | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 10
Net Rentable Square Feet | ft² 586
2023 Encum- brances $ 0
Initial Cost, Land 9,833
Initial Cost, Building & Improvements 35,451
Costs Subsequent to Acquisition 5,190
Gross Carrying Amount, Land 9,833
Gross Carrying Amount, Buildings 40,641
Gross Carrying Amount, Total 50,474
Accumulated Depreciation $ 10,833
Buffalo/Rochester | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 9
Net Rentable Square Feet | ft² 462
2023 Encum- brances $ 0
Initial Cost, Land 6,785
Initial Cost, Building & Improvements 17,954
Costs Subsequent to Acquisition 7,251
Gross Carrying Amount, Land 6,783
Gross Carrying Amount, Buildings 25,207
Gross Carrying Amount, Total 31,990
Accumulated Depreciation $ 17,283
Boise | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 7
Net Rentable Square Feet | ft² 671
2023 Encum- brances $ 0
Initial Cost, Land 16,756
Initial Cost, Building & Improvements 71,912
Costs Subsequent to Acquisition 2,221
Gross Carrying Amount, Land 16,756
Gross Carrying Amount, Buildings 74,133
Gross Carrying Amount, Total 90,889
Accumulated Depreciation $ 6,900
Reno | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 7
Net Rentable Square Feet | ft² 559
2023 Encum- brances $ 0
Initial Cost, Land 5,487
Initial Cost, Building & Improvements 18,704
Costs Subsequent to Acquisition 6,980
Gross Carrying Amount, Land 5,487
Gross Carrying Amount, Buildings 25,684
Gross Carrying Amount, Total 31,171
Accumulated Depreciation $ 15,473
Tucson | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 7
Net Rentable Square Feet | ft² 439
2023 Encum- brances $ 0
Initial Cost, Land 9,403
Initial Cost, Building & Improvements 25,491
Costs Subsequent to Acquisition 8,990
Gross Carrying Amount, Land 9,884
Gross Carrying Amount, Buildings 34,000
Gross Carrying Amount, Total 43,884
Accumulated Depreciation $ 24,851
Wichita | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 7
Net Rentable Square Feet | ft² 433
2023 Encum- brances $ 0
Initial Cost, Land 2,017
Initial Cost, Building & Improvements 6,691
Costs Subsequent to Acquisition 8,834
Gross Carrying Amount, Land 2,130
Gross Carrying Amount, Buildings 15,412
Gross Carrying Amount, Total 17,542
Accumulated Depreciation $ 12,945
Monterey/Salinas | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 7
Net Rentable Square Feet | ft² 329
2023 Encum- brances $ 0
Initial Cost, Land 8,465
Initial Cost, Building & Improvements 24,151
Costs Subsequent to Acquisition 7,845
Gross Carrying Amount, Land 8,455
Gross Carrying Amount, Buildings 32,006
Gross Carrying Amount, Total 40,461
Accumulated Depreciation $ 26,472
Evansville | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 5
Net Rentable Square Feet | ft² 326
2023 Encum- brances $ 0
Initial Cost, Land 2,340
Initial Cost, Building & Improvements 14,316
Costs Subsequent to Acquisition 1,686
Gross Carrying Amount, Land 2,312
Gross Carrying Amount, Buildings 16,030
Gross Carrying Amount, Total 18,342
Accumulated Depreciation $ 6,174
Huntsville/Decatur | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 5
Net Rentable Square Feet | ft² 298
2023 Encum- brances $ 0
Initial Cost, Land 9,161
Initial Cost, Building & Improvements 13,481
Costs Subsequent to Acquisition 3,848
Gross Carrying Amount, Land 9,108
Gross Carrying Amount, Buildings 17,382
Gross Carrying Amount, Total 26,490
Accumulated Depreciation $ 7,747
Dayton | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 5
Net Rentable Square Feet | ft² 284
2023 Encum- brances $ 0
Initial Cost, Land 1,074
Initial Cost, Building & Improvements 8,975
Costs Subsequent to Acquisition 5,283
Gross Carrying Amount, Land 1,073
Gross Carrying Amount, Buildings 14,259
Gross Carrying Amount, Total 15,332
Accumulated Depreciation $ 8,624
Fort Wayne | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 4
Net Rentable Square Feet | ft² 271
2023 Encum- brances $ 0
Initial Cost, Land 3,487
Initial Cost, Building & Improvements 11,003
Costs Subsequent to Acquisition 3,695
Gross Carrying Amount, Land 3,487
Gross Carrying Amount, Buildings 14,698
Gross Carrying Amount, Total 18,185
Accumulated Depreciation $ 7,042
Providence | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 4
Net Rentable Square Feet | ft² 248
2023 Encum- brances $ 0
Initial Cost, Land 2,644
Initial Cost, Building & Improvements 26,118
Costs Subsequent to Acquisition 4,000
Gross Carrying Amount, Land 2,644
Gross Carrying Amount, Buildings 30,118
Gross Carrying Amount, Total 32,762
Accumulated Depreciation $ 8,544
Lansing | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 4
Net Rentable Square Feet | ft² 233
2023 Encum- brances $ 0
Initial Cost, Land 2,048
Initial Cost, Building & Improvements 22,897
Costs Subsequent to Acquisition 1,755
Gross Carrying Amount, Land 2,048
Gross Carrying Amount, Buildings 24,652
Gross Carrying Amount, Total 26,700
Accumulated Depreciation $ 3,210
Roanoke | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 4
Net Rentable Square Feet | ft² 223
2023 Encum- brances $ 0
Initial Cost, Land 5,093
Initial Cost, Building & Improvements 18,091
Costs Subsequent to Acquisition 1,591
Gross Carrying Amount, Land 5,093
Gross Carrying Amount, Buildings 19,682
Gross Carrying Amount, Total 24,775
Accumulated Depreciation $ 5,425
Palm Springs | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 3
Net Rentable Square Feet | ft² 242
2023 Encum- brances $ 0
Initial Cost, Land 8,309
Initial Cost, Building & Improvements 18,065
Costs Subsequent to Acquisition 3,282
Gross Carrying Amount, Land 8,309
Gross Carrying Amount, Buildings 21,347
Gross Carrying Amount, Total 29,656
Accumulated Depreciation $ 14,206
Flint | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 3
Net Rentable Square Feet | ft² 191
2023 Encum- brances $ 0
Initial Cost, Land 2,734
Initial Cost, Building & Improvements 19,228
Costs Subsequent to Acquisition 666
Gross Carrying Amount, Land 2,733
Gross Carrying Amount, Buildings 19,895
Gross Carrying Amount, Total 22,628
Accumulated Depreciation $ 2,588
Rochester | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 3
Net Rentable Square Feet | ft² 155
2023 Encum- brances $ 0
Initial Cost, Land 2,142
Initial Cost, Building & Improvements 10,787
Costs Subsequent to Acquisition 3,799
Gross Carrying Amount, Land 2,075
Gross Carrying Amount, Buildings 14,653
Gross Carrying Amount, Total 16,728
Accumulated Depreciation $ 4,719
Shreveport | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 2
Net Rentable Square Feet | ft² 150
2023 Encum- brances $ 0
Initial Cost, Land 817
Initial Cost, Building & Improvements 3,030
Costs Subsequent to Acquisition 3,476
Gross Carrying Amount, Land 741
Gross Carrying Amount, Buildings 6,582
Gross Carrying Amount, Total 7,323
Accumulated Depreciation $ 5,329
Springfield/Holyoke | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 2
Net Rentable Square Feet | ft² 144
2023 Encum- brances $ 0
Initial Cost, Land 1,428
Initial Cost, Building & Improvements 3,380
Costs Subsequent to Acquisition 2,599
Gross Carrying Amount, Land 1,427
Gross Carrying Amount, Buildings 5,980
Gross Carrying Amount, Total 7,407
Accumulated Depreciation $ 5,330
Santa Barbara | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 2
Net Rentable Square Feet | ft² 98
2023 Encum- brances $ 0
Initial Cost, Land 5,733
Initial Cost, Building & Improvements 9,106
Costs Subsequent to Acquisition 1,183
Gross Carrying Amount, Land 5,733
Gross Carrying Amount, Buildings 10,289
Gross Carrying Amount, Total 16,022
Accumulated Depreciation $ 7,172
Topeka | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 2
Net Rentable Square Feet | ft² 94
2023 Encum- brances $ 0
Initial Cost, Land 225
Initial Cost, Building & Improvements 1,419
Costs Subsequent to Acquisition 2,167
Gross Carrying Amount, Land 225
Gross Carrying Amount, Buildings 3,586
Gross Carrying Amount, Total 3,811
Accumulated Depreciation $ 3,342
Joplin | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 1
Net Rentable Square Feet | ft² 56
2023 Encum- brances $ 0
Initial Cost, Land 264
Initial Cost, Building & Improvements 904
Costs Subsequent to Acquisition 1,067
Gross Carrying Amount, Land 264
Gross Carrying Amount, Buildings 1,971
Gross Carrying Amount, Total 2,235
Accumulated Depreciation $ 1,738
Syracuse | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 1
Net Rentable Square Feet | ft² 55
2023 Encum- brances $ 0
Initial Cost, Land 545
Initial Cost, Building & Improvements 1,279
Costs Subsequent to Acquisition 1,413
Gross Carrying Amount, Land 545
Gross Carrying Amount, Buildings 2,692
Gross Carrying Amount, Total 3,237
Accumulated Depreciation $ 2,155
Modesto/Fresno/Stockton | Self-storage facilities  
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]  
No. of Facilities | storage_facility 1
Net Rentable Square Feet | ft² 33
2023 Encum- brances $ 0
Initial Cost, Land 44
Initial Cost, Building & Improvements 206
Costs Subsequent to Acquisition 1,399
Gross Carrying Amount, Land 193
Gross Carrying Amount, Buildings 1,456
Gross Carrying Amount, Total 1,649
Accumulated Depreciation $ 1,167