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, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Investments in Joint Ventures [Abstract]
Total assets		$ 729,300		$ 729,300		$ 748,000
Total third-party debt		521,000		521,000		527,000
Total equity		183,500		183,500		$ 195,300
Total revenues		30,500	$ 29,400	89,900	$ 85,200
Net income		3,900	3,100	10,200	8,700
Equity in income (1)	[1]	$ 1,866	$ 1,574	$ 5,052	$ 4,487

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