Fair Value Measurements (Details) (USD $)	Dec. 31, 2013	Jul. 03, 2013	Dec. 31, 2012	Aug. 19, 2010
Quoted Prices in Active Markets (Level 1)
Net valuation of the Company's derivatives subject to fair value measurement on a recurring basis
Commodity Derivatives Fair Value	$ 0		$ 0
Significant Other Observable Inputs (Level 2)
Net valuation of the Company's derivatives subject to fair value measurement on a recurring basis
Commodity Derivatives Fair Value	(1,096,000)		597,000
Significant Unobservable Inputs (Level 3)
Net valuation of the Company's derivatives subject to fair value measurement on a recurring basis
Commodity Derivatives Fair Value	0		0
Ten Percent Senior Notes [Member]
Net valuation of the Company's derivatives subject to fair value measurement on a recurring basis
Book value of notes	350,000,000	200,000,000	150,000,000	150,000,000
Stated interest rate		10.00%		10.00%
Ten Percent Senior Notes [Member] | Significant Other Observable Inputs (Level 2)
Net valuation of the Company's derivatives subject to fair value measurement on a recurring basis
Estimated fair value of the Notes	$ 364,000,000		$ 155,300,000