v3.26.3
Disclosure about Fair Value of Financial Instruments - Summary of Carrying Amounts and Estimated Fair Values of Financial Instruments (Details) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
Financial assets:    
Restricted cash $ 141,097 $ 175,861 [1]
Financial liabilities:    
Foreign currency forward contracts, interest rate swaps and cross currency swaps 253,587  
Carrying Amount    
Financial assets:    
Investments in sales-type leases, net 0 497,963
Cash and cash equivalents 2,274,910 5,033,678
Restricted cash 141,097 175,861
Foreign currency forward contracts, interest rate swaps and cross currency swaps 42,548 43,223
Financial liabilities:    
Borrowings under unsecured credit facility and commercial paper programs 1,041,054 0
Senior unsecured notes 14,686,972 16,383,522
Secured debt 3,467,126 2,813,780
Foreign currency forward contracts, interest rate swaps and cross currency swaps 296,135 416,210
Redeemable DownREIT Unitholder interests 0 72,497
Carrying Amount | Mortgage loans receivable    
Financial assets:    
Loans receivable, fair value 2,041,759 998,699
Carrying Amount | Other real estate loans receivable    
Financial assets:    
Loans receivable, fair value 1,005,510 832,511
Carrying Amount | Non-real estate loans receivable    
Financial assets:    
Loans receivable, fair value 281,365 251,055
Fair Value    
Financial assets:    
Investments in sales-type leases, net 0 497,963
Cash and cash equivalents 2,274,910 5,033,678
Restricted cash 141,097 175,861
Foreign currency forward contracts, interest rate swaps and cross currency swaps 42,548 43,223
Financial liabilities:    
Borrowings under unsecured credit facility and commercial paper programs 1,041,054 0
Senior unsecured notes 15,591,239 17,872,001
Secured debt 3,309,542 2,768,807
Foreign currency forward contracts, interest rate swaps and cross currency swaps 296,135 416,210
Redeemable DownREIT Unitholder interests 0 72,497
Fair Value | Mortgage loans receivable    
Financial assets:    
Loans receivable, fair value 2,025,792 1,008,879
Fair Value | Other real estate loans receivable    
Financial assets:    
Loans receivable, fair value 982,865 803,247
Fair Value | Non-real estate loans receivable    
Financial assets:    
Loans receivable, fair value $ 273,478 $ 245,415
[1] The consolidated balance sheet at December 31, 2025 has been derived from the audited financial statements at that date but does not include all of the information and footnotes required by U.S. generally accepted accounting principles for complete financial statements.