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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.

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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References No definition available. + Details
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- Definition Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 55 -Paragraph 69C -URI https://asc.fasb.org/extlink&oid=123466577&loc=SL123495737-112612 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 55 -Paragraph 69B -URI https://asc.fasb.org/extlink&oid=123466577&loc=SL123495735-112612 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI https://asc.fasb.org/extlink&oid=123594938&loc=d3e13433-108611 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1D -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495340-112611 + Details
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- Definition Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as current. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(2)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (f) -URI https://asc.fasb.org/extlink&oid=124098289&loc=d3e6676-107765 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 45 -Paragraph 1A -URI https://asc.fasb.org/extlink&oid=123594786&loc=SL75136599-209740 + Details
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- Definition Amount of cash restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(1)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 8 -URI https://asc.fasb.org/extlink&oid=126999549&loc=SL98516268-108586 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(1)(a)) -URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(2)) -URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910 + Details
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