Consolidated Statements Of Comprehensive (Loss) Income (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Consolidated Statements Of Comprehensive (Loss) Income [Abstract]
Net Income (Loss)	$ 49,948,000	$ 22,218,000	$ (26,968,000)
Other Comprehensive Income (Loss)
Change in Fair Value of Derivative Instruments	2,694,000	1,073,000	(367,000)
Less: Reclassification Adjustment for Change in Fair Value of Derivative Instruments Included in Net Income	(1,284,000)	(1,708,000)	(446,000)
Comprehensive Income (Loss)	51,358,000	21,583,000	(27,781,000)
Less: Comprehensive (Income) Loss Attributable to Noncontrolling Interests	(335,000)	158,000	1,734,000
Less: Preferred Distributions	(14,611,000)	(14,000,000)	(10,499,000)
Less: Extinguishment of Issuance Costs Upon Redemption of Series A Preferred Shares	(2,250,000)
Comprehensive Income (Loss) Attributable to Common Shareholders	$ 34,162,000	$ 7,741,000	$ (36,546,000)