Investments in Joint Ventures (Aggregate Balance Sheet And Statement Of Income Data For Unconsolidated Joint Ventures) (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Investments in Joint Ventures [Abstract]
Total assets		$ 731,600		$ 731,600		$ 748,000
Total third-party debt		524,200		524,200		527,000
Total equity		187,000		187,000		$ 195,300
Total revenues		29,900	$ 28,300	59,500	$ 55,800
Net income		3,400	2,900	6,300	5,600
Equity in income (1)	[1]	$ 1,689	$ 1,531	$ 3,186	$ 2,913

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