Investments In Joint Ventures (Aggregate Balance Sheet And Statement Of Income Data For Unconsolidated Joint Ventures) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Schedule of Equity Method Investments [Line Items]
Assets		$ 9,327,935	$ 7,976,784
Liabilities		4,271,014	3,710,529
Stockholders' Equity Attributable to Parent		4,986,620	4,197,490
Net income		661,508	312,376	$ 128,579
Equity in income of joint ventures		3,048	9,777	8,052
Equity Method Investment, Nonconsolidated Investee or Group of Investees
Schedule of Equity Method Investments [Line Items]
Assets		0	679,100
Liabilities		0	513,800
Stockholders' Equity Attributable to Parent		0	131,900
Revenues		37,200	139,000	128,500
Net income		7,100	21,300	15,800
Equity in income of joint ventures	[1]	$ 3,000	$ 9,800	$ 8,100

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