Fair Value Measurements (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Fair Value of Financial Instruments
Marketable securities available-for-sale	$ 21,899	$ 24,146
Interest rate cap and swap agreements (included in Other assets)	17,493	1,896
Interest rate cap and swap agreements (included in Other liabilities)		29,912
Debt and preferred equity investments	1,134,080	1,088,723
Carrying Value
Fair Value of Financial Instruments
Debt and preferred equity investments	1,134,080	1,088,723
Fixed rate debt	3,086,297	3,274,324
Variable rate debt	820,148	801,051
Total	3,906,445	4,075,375
Fair Value
Fair Value of Financial Instruments
Marketable securities available-for-sale	21,899	24,146
Total	3,874,747	4,137,135
Estimated fair value of debt and preferred equity investments, low end of range	1,000,000	1,000,000
Estimated fair value of debt and preferred equity investments, high end of range	1,100,000	1,100,000
Level 1
Fair Value of Financial Instruments
Interest rate cap and swap agreements (included in Other assets)	0	0
Interest rate cap and swap agreements (included in Other liabilities)		0
Level 2
Fair Value of Financial Instruments
Interest rate cap and swap agreements (included in Other assets)	17,493	1,896
Interest rate cap and swap agreements (included in Other liabilities)		29,912
Level 3
Fair Value of Financial Instruments
Marketable securities available-for-sale	0	0
Interest rate cap and swap agreements (included in Other assets)	0	0
Interest rate cap and swap agreements (included in Other liabilities)		0
Level 3 \| Fair Value
Fair Value of Financial Instruments
Fixed rate debt	3,060,475	3,336,463
Variable rate debt	814,272	800,672
Marketable securities available-for-sale \| Level 1
Fair Value of Financial Instruments
Marketable securities available-for-sale	0	0
Commercial mortgage-backed securities
Fair Value of Financial Instruments
Marketable securities available-for-sale	21,899	24,146
Commercial mortgage-backed securities \| Level 2
Fair Value of Financial Instruments
Marketable securities available-for-sale	$ 21,899	$ 24,146

Represents the high end of the range of estimated fair value for investments in mortgage loans on real estate.

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- Definition

Represents the low end of the range of estimated fair value for investments in mortgage loans on real estate.

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No definition available.

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Fair value, before 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 elected not to be offset. Excludes assets not subject to a master netting arrangement.

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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.

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The balance represents the amount of loans that are secured by real estate mortgages, offset by the reserve to cover probable credit losses on the loan portfolio.

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