Disclosure about Fair Value of Financial Instruments - Carrying Amounts and Estimated Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Financial assets:
Equity securities	$ 66
Restricted cash	66,894	$ 90,611	[1]
Foreign currency forward contracts, interest rate swaps and cross currency swaps	107,377
Equity warrants	30,269
Carrying Amount
Financial assets:
Equity securities	66	111
Cash and cash equivalents	571,902	631,681
Restricted cash	66,894	90,611
Foreign currency forward contracts, interest rate swaps and cross currency swaps	148,206	191,357
Equity warrants	30,269	30,436
Financial liabilities:
Senior unsecured notes	12,486,229	12,437,273
Secured debt	2,474,837	2,110,815
Foreign currency forward contracts, interest rate swaps and cross currency swaps	40,829	55,727
Redeemable DownREIT Unitholder interests	61,957	75,355
Carrying Amount | Mortgage loans receivable
Financial assets:
Loans receivable, fair value	718,961	697,906
Carrying Amount | Other real estate loans receivable
Financial assets:
Loans receivable, fair value	235,195	192,938
Carrying Amount | Non-real estate loans receivable
Financial assets:
Loans receivable, fair value	297,513	289,168
Fair Value
Financial assets:
Equity securities	66	111
Cash and cash equivalents	571,902	631,681
Restricted cash	66,894	90,611
Foreign currency forward contracts, interest rate swaps and cross currency swaps	148,206	191,357
Equity warrants	30,269	30,436
Financial liabilities:
Senior unsecured notes	11,629,220	11,381,873
Secured debt	2,451,673	2,054,889
Foreign currency forward contracts, interest rate swaps and cross currency swaps	40,829	55,727
Redeemable DownREIT Unitholder interests	61,957	75,355
Fair Value | Mortgage loans receivable
Financial assets:
Loans receivable, fair value	759,712	739,159
Fair Value | Other real estate loans receivable
Financial assets:
Loans receivable, fair value	235,573	190,977
Fair Value | Non-real estate loans receivable
Financial assets:
Loans receivable, fair value	$ 285,404	$ 277,601

[1] The consolidated balance sheet at December 31, 2022 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.