Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (167)	$ (19,938)	$ 1,108	$ (36,601)
Unrealized gain on interest rate cap agreement:
Unrealized interest rate cap agreement gain arising during the period	0	51	0	81
Reclassification adjustment for amortization of interest expense included in net (loss) income	28	0	130	0
Other comprehensive income	28	51	130	81
Comprehensive (loss) income	(139)	(19,887)	1,238	(36,520)
Comprehensive income attributable to noncontrolling interests	7,308	3,106	10,366	10,790
Dividends on preferred shares	13,669	5,569	26,650	16,707
Comprehensive loss attributable to common shareholders	$ (21,116)	$ (28,562)	$ (35,778)	$ (64,017)