Consolidated Statements Of Comprehensive (Loss) Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Net (loss) income	$ 31,296	$ 39,570	$ 198,905	$ 96,767
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	0
Comprehensive (loss) income	$ 31,296	$ 39,570	$ 198,905	$ 96,767