Mortgages, Notes and Loans Payable, Net (Summary of Mortgages, Notes and Loans Payable) (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Feb. 28, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Mortgages, notes and loans payable	$ 1,767,218		$ 1,945,344
Unamortized bond discounts	0		(4,355)
Unamortized deferred financing costs	(44,335)		(28,442)
Total mortgages, notes and loans payable, net	4,395,187		4,287,369
Secured mortgages, notes and loans payable
Debt Instrument [Line Items]
Fixed-rate debt	588,203		590,517
Amount of variable-rate debt swapped to fixed rate	650,500		649,900
Special Improvement District bonds
Debt Instrument [Line Items]
Fixed-rate debt	34,101		$ 34,305
Senior Notes due 2025 \| Senior Notes
Debt Instrument [Line Items]
Interest rate (as a percent)		5.375%	5.375%
Fixed-rate debt	0		$ 1,000,000
Senior Notes due 2028 \| Senior Notes
Debt Instrument [Line Items]
Interest rate (as a percent)			5.375%
Fixed-rate debt	$ 750,000		$ 750,000
Senior Notes due 2029 \| Senior Notes
Debt Instrument [Line Items]
Interest rate (as a percent)	4.125%	4.125%
Fixed-rate debt	$ 650,000		0
Senior Notes due 2031 \| Senior Notes
Debt Instrument [Line Items]
Interest rate (as a percent)	4.375%	4.375%
Fixed-rate debt	$ 650,000		0
Interest rate cap \| Secured mortgages, notes and loans payable
Debt Instrument [Line Items]
Mortgages, notes and loans payable	$ 117,700		$ 75,000

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of all notes and loans payable (with maturities initially due after one year or beyond the operating cycle if longer).

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The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

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