Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2014

Accounting Policies [Abstract]

Accumulated Other Comprehensive Income

The following details the components of AOCI and related tax effects for the three years ended December 31, 2014. Amounts included in AOCI exclusively relate to our derivative activity. See footnote 10 for additional information on the discontinuance of hedge accounting (in thousands).

	Gross			Tax Effect			Net of Tax
Accumulated other comprehensive income at December 31, 2011	$	254,678		$	(98,051	)	$	156,627
Contract settlements reclassified to income		(236,305	)		91,871			(144,434	)
Change in unrealized deferred hedging gains		119,182			(47,466	)		71,716
Accumulated other comprehensive income at December 31, 2012		137,555			(53,646	)		83,909
Contract settlements reclassified to income		(120,443	)		46,973			(73,470	)
Change in unrealized deferred hedging losses		(6,890	)		2,687			(4,203	)
Accumulated other comprehensive income at December 31, 2013		10,222			(3,986	)		6,236
Contract settlements reclassified to income		(10,222	)		3,986			(6,236	)
Accumulated other comprehensive income at December 31, 2014	$	¾		$	¾		$	¾