Corporate Indebtedness - Junior Subordinated Deferrable Interest Debentures and Principal Maturities (Details)	1 Months Ended
Jun. 30, 2005 USD ($) quarter	Mar. 31, 2023 USD ($)
Principal Repayments and Joint Venture Debt
Remaining 2023		$ 264,502,000
2024		962,237,000
2025		470,000,000
2026		0
2027		3,752,750,000
Thereafter		150,000,000
Total principal repayments		5,599,489,000
Trust Preferred Securities
Debt Instrument [Line Items]
Proceeds from issuance of debt	$ 100,000,000
LIBOR \| Trust Preferred Securities
Debt Instrument [Line Items]
Interest rate added to base rate (as a percent)	1.25%
Interest payment deferment, number of consecutive quarters \| quarter	8
Joint venture
Principal Repayments and Joint Venture Debt
Remaining 2023		1,146,281,000
2024		927,320,000
2025		1,585,610,000
2026		107,137,000
2027		299,417,000
Thereafter		2,130,404,000
Total principal repayments		6,196,169,000
Joint venture \| Trust Preferred Securities
Principal Repayments and Joint Venture Debt
Remaining 2023		0
2024		0
2025		0
2026		0
2027		0
Thereafter		100,000,000
Total principal repayments		100,000,000
Joint venture \| Mortgages and other loans payable
Scheduled Amortization
Remaining 2023		4,353,000
2024		4,488,000
2025		0
2026		0
2027		0
Thereafter		0
Total amortization of debt		8,841,000
Principal Repayments and Joint Venture Debt
Remaining 2023		260,149,000
2024		332,749,000
2025		370,000,000
2026		0
2027		2,262,750,000
Thereafter		0
Total principal repayments		3,225,648,000
Joint venture \| Revolving Credit Facility
Principal Repayments and Joint Venture Debt
Remaining 2023		0
2024		0
2025		0
2026		0
2027		490,000,000
Thereafter		0
Total principal repayments		490,000,000
Joint venture \| Unsecured Term Loans
Principal Repayments and Joint Venture Debt
Remaining 2023		0
2024		625,000,000
2025		0
2026		0
2027		1,000,000,000
Thereafter		50,000,000
Total principal repayments		1,675,000,000
Joint venture \| Senior Unsecured Notes
Principal Repayments and Joint Venture Debt
Remaining 2023		0
2024		0
2025		100,000,000
2026		0
2027		0
Thereafter		0
Total principal repayments		$ 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 fourth 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 second 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 third 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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The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

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