CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2017	Mar. 31, 2016
Comprehensive income, net of tax:
Net income (loss)		$ 5,659	$ 143,765
Other comprehensive income (loss):
Interest rate swaps (a)	[1]	433	(9,808)
Capitalized swap interest expense (b)	[2]	(75)	(63)
Other comprehensive income (loss)		358	(9,871)
Comprehensive income		6,017	133,894
Comprehensive income attributable to common stockholders		$ 6,017	$ 133,894

[1] Amounts are shown net of deferred tax expense of $0.3 million and deferred tax benefit of $5.3 million for the three months ended March 31, 2017 and 2016, respectively.

[2] Net of deferred tax benefit of $0.1 million for both the three months ended March 31, 2017 and 2016, respectively.