CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (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
Comprehensive income (loss), net of tax:
Net income (loss)	$ 45,615		$ 7,433		$ (55,449)		$ (92,233)
Other comprehensive income (loss):
Interest rate swaps	784	[1]	(413)	[1]	902	[1]	2,120	[1]
Capitalized swap interest	(180)	[2]	(293)	[2]	(357)	[2]	(1,024)	[2]
Other comprehensive income (loss)	604		(706)		545		1,096
Comprehensive income (loss)	46,219		6,727		(54,904)		(91,137)
Comprehensive income attributable to noncontrolling interests			(98)		(12)		(110)
Comprehensive income (loss) attributable to common stockholders	$ 46,219		$ 6,629		$ (54,916)		$ (91,247)

[1] Net of deferred tax expense of $0.1 million and $0.2 million for the three months and nine months ended September 30, 2014, respectively. Net of deferred tax expense of $0.4 million for both the three and nine months ended September 30, 2013.

[2] Net of deferred tax benefit of $0.1 million and $0.2 million for the three and nine months ended September 30, 2014, respectively. Net of deferred tax benefit of $0.2 million and $0.5 million for the three and nine months ended September 30, 2013, respectively.