Corporate Indebtedness - Junior Subordinated Deferrable Interest Debentures and Principal Maturities (Details)	1 Months Ended	12 Months Ended
Jun. 30, 2005 USD ($)	Dec. 31, 2022 USD ($) quarter
Principal Repayments and Joint Venture Debt
2023		$ 265,975,000
2024		937,237,000
2025		470,000,000
2026		0
2027		3,712,750,000
Thereafter		150,000,000
Repayments of principal		$ 5,535,962,000
Trust Preferred Securities
Debt Instrument [Line Items]
Proceeds from issuance of debt	$ 100,000,000
Trust Preferred Securities \| LIBOR
Debt Instrument [Line Items]
Interest rate added to base rate (as a percent)		125.00%
Interest payment deferment, number of consecutive quarters \| quarter		8
Joint venture
Principal Repayments and Joint Venture Debt
2023		$ 1,155,465,000
2024		894,655,000
2025		1,466,750,000
2026		226,224,000
2027		299,417,000
Thereafter		2,130,404,000
Repayments of principal		6,172,915,000
Joint venture \| Mortgages and other loans payable
Scheduled Amortization
2023		5,827,000
2024		4,488,000
2025		0
2026		0
2027		0
Thereafter		0
Future Amortization of Debt		10,315,000
Principal Repayments and Joint Venture Debt
2023		260,148,000
2024		332,749,000
2025		370,000,000
2026		0
2027		2,262,750,000
Thereafter		0
Repayments of principal		3,225,647,000
Joint venture \| Revolving Credit Facility
Principal Repayments and Joint Venture Debt
2023		0
2024		0
2025		0
2026		0
2027		450,000,000
Thereafter		0
Repayments of principal		450,000,000
Joint venture \| Unsecured Term Loans
Principal Repayments and Joint Venture Debt
2023		0
2024		600,000,000
2025		0
2026		0
2027		1,000,000,000
Thereafter		50,000,000
Repayments of principal		1,650,000,000
Joint venture \| Trust Preferred Securities
Principal Repayments and Joint Venture Debt
2023		0
2024		0
2025		0
2026		0
2027		0
Thereafter		100,000,000
Repayments of principal		100,000,000
Joint venture \| Senior Unsecured Notes
Principal Repayments and Joint Venture Debt
2023		0
2024		0
2025		100,000,000
2026		0
2027		0
Thereafter		0
Repayments of principal		$ 100,000,000

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The total expected future amortization of debt.

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The amount of amortization of debt expected to be recognized after the fifth full fiscal year following the date of the most recent balance sheet.

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The amount of amortization of debt expected to be recognized during the fifth full fiscal year following the date of the most recent balance sheet.

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The amount of amortization of debt expected to be recognized during the first full fiscal year following the date of the most recent balance sheet.

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The amount of amortization of debt expected to be recognized during the fourth full fiscal year following the date of the most recent balance sheet.

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Total amount of long-term debt maturing in future periods.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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