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Fair Value - Financial Instruments Measured at Fair Value on a Recurring Basis (Details) - Recurring basis - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
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Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
Financial Instruments Measured/Discussed at Fair Value |  |
Total Assets | $ 0 | $ 0
DownREIT units | 1,211 | 1,895
Total Liabilities | 6,654,892 | 7,626,455
Significant Other Observable Inputs (Level 2) |  |
Financial Instruments Measured/Discussed at Fair Value |  |
Equity Securities | 27,027 |
Notes Receivable, net | 28,860 |
Total Assets | 56,342 | 3,429
Total Liabilities | 553,591 | 940,779
Significant Unobservable Inputs (Level 3) |  |
Financial Instruments Measured/Discussed at Fair Value |  |
Total Assets | 0 | 0
Total Liabilities | 0 | 0
Cash Flow Hedges Interest Rate Caps | Significant Other Observable Inputs (Level 2) | Interest Rate Swap |  |
Financial Instruments Measured/Discussed at Fair Value |  |
Derivative assets |  | 3,204
Total Fair Value |  |
Financial Instruments Measured/Discussed at Fair Value |  |
Equity Securities | 27,027 |
Notes Receivable, net | 28,860 |
Total Assets | 56,342 | 3,429
DownREIT units | 1,211 | 1,895
Total Liabilities | 7,208,483 | 8,567,234
Total Fair Value | Cash Flow Hedges Interest Rate Caps | Interest Rate Swap |  |
Financial Instruments Measured/Discussed at Fair Value |  |
Derivative assets |  | 3,204
Interest Rate Caps | Significant Other Observable Inputs (Level 2) | Interest Rate Caps |  |
Financial Instruments Measured/Discussed at Fair Value |  |
Derivative assets | 455 | 225
Interest Rate Caps | Total Fair Value | Interest Rate Caps |  |
Financial Instruments Measured/Discussed at Fair Value |  |
Derivative assets | 455 | 225
Unsecured notes | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
Financial Instruments Measured/Discussed at Fair Value |  |
Indebtedness | 6,653,681 | 7,624,560
Unsecured notes | Total Fair Value |  |
Financial Instruments Measured/Discussed at Fair Value |  |
Indebtedness | 6,653,681 | 7,624,560
Secured Debt, Commercial Paper Program and Variable Rate Unsecured Indebtedness | Significant Other Observable Inputs (Level 2) |  |
Financial Instruments Measured/Discussed at Fair Value |  |
Indebtedness | 553,591 |
Secured Debt, Commercial Paper Program and Variable Rate Unsecured Indebtedness | Total Fair Value |  |
Financial Instruments Measured/Discussed at Fair Value |  |
Indebtedness | $ 553,591 |
Secured Debt and Variable Rate Unsecured Indebtedness | Significant Other Observable Inputs (Level 2) |  |
Financial Instruments Measured/Discussed at Fair Value |  |
Indebtedness |  | 940,779
Secured Debt and Variable Rate Unsecured Indebtedness | Total Fair Value |  |
Financial Instruments Measured/Discussed at Fair Value |  |
Indebtedness |  | $ 940,779

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- Definition Units of limited partnership interest in DownREITs which provide the DownREITs limited partners the ability to present all or some of their units for redemption for cash in the amount equal to the fair value of the company's common stock on or about the date of redemption. In lieu of cash redemption, the company may elect to exchange such units for an equal number of shares in the company's common stock. + References No definition available. + Details
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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 22 -URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226052-175313 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 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + 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 Fair value of financial and nonfinancial obligations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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- Definition The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. + References No definition available. + Details
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