Consolidated Statements of Comprehensive Loss (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Statement of Comprehensive Income [Abstract]
Net loss	$ (16,204)	$ (19,402)	$ (21,849)	$ (29,957)
Other comprehensive income (loss), net of tax:
Change in unrealized loss on derivatives	0	(2)	0	(4)
Reclassification to interest expense	0	29	100	53
Total other comprehensive income	0	27	100	49
Comprehensive loss	(16,204)	(19,375)	(21,749)	(29,908)
Less: Comprehensive loss attributable to noncontrolling interests in consolidated entities	124	175	146	890
Less: Comprehensive loss attributable to redeemable noncontrolling interests in operating partnership	2,585	2,888	4,221	5,145
Comprehensive loss attributable to the Company	$ (13,495)	$ (16,312)	$ (17,382)	$ (23,873)