Investments in Joint Ventures (Aggregate Balance Sheet And Statement Of Income Data For Unconsolidated Joint Ventures) (Details) - USD ($) $ in Thousands		3 Months Ended			9 Months Ended
		Sep. 30, 2022		Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Schedule of Equity Method Investments [Line Items]
Fees earned for property and asset management, construction, development, and other services to joint ventures				$ 1,800	$ 1,700	$ 4,900
Assets		$ 9,414,125			9,414,125		$ 7,976,784
Liabilities		4,305,763			4,305,763		3,710,529
Equity		5,037,993			5,037,993		4,197,490
Net income		31,550		30,605	614,037	94,517
Income (Loss) from Equity Method Investments	[1]	0	[2]	2,500	3,048	6,652
Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member]
Schedule of Equity Method Investments [Line Items]
Assets		0			0		679,100
Liabilities		0			0		513,800
Equity		0			0		$ 131,900
Revenues		0	[2]	35,400	37,200	102,600
Net income		$ 0	[2]	$ 5,400	$ 7,100	$ 13,800

[1] Equity in income excludes our ownership interest of fee income from various services provided by us to the Funds.

[2] We consolidated the operations of the Funds as of April 1, 2022 and therefore results are $0 for the three months ended September 30, 2022.