Consolidated Statements Of Comprehensive (Loss) Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ 9,639	$ 94,960	$ 35,804	$ 167,609
Other comprehensive income, before tax:
Gains on hedging instrument	0	0	0	0
Other comprehensive income, before tax:	0	0	0	0
Income tax expense related to gains on hedging instrument	0	0	0	0
Other comprehensive income, net of tax:	0	0	0
Comprehensive income	$ 9,639	$ 94,960	$ 35,804	$ 167,609