CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
Comprehensive income (loss), net of tax
Net income (loss)	$ 7,433		$ (50,192)		$ (92,233)		$ (126,724)
Other comprehensive income (loss):
Interest rate swaps	(413)	[1]	(954)	[1]	2,120	[1]	(3,115)	[1]
Capitalized swap interest	(293)	[2]	(328)	[2]	(1,024)	[2]	(897)	[2]
Other comprehensive income (loss)	(706)		(1,282)		1,096		(4,012)
Comprehensive income (loss)	6,727		(51,474)		(91,137)		(130,736)
Comprehensive (income) loss attributable to noncontrolling interests	(98)		781		(110)		(637)
Comprehensive income (loss) attributable to common stockholders	$ 6,629		$ (50,693)		$ (91,247)		$ (131,373)

[1] Net of deferred tax expense of zero and $0.4 million for the three and nine months ended September 30, 2013, respectively. Net of deferred tax benefit of $0.1 million and $0.2 million for the three and nine months ended September 30, 2012, respectively.

[2] Net of deferred tax benefit of $0.2 million and $0.5 million for the three and nine months ended September 30, 2013, respectively. Net of deferred tax benefit of $0.2 million and $0.5 million for the three and nine months ended September 30, 2012, respectively.