Fair Value Measurements (Details) - USD ($)	Sep. 30, 2016	Dec. 31, 2015	Jul. 03, 2013	Aug. 19, 2010
Net valuation of the Company's derivatives subject to fair value measurement on a recurring basis
Face Value	$ 280,295,000	$ 350,000,000
Senior Notes | 10% Senior Unsecured Notes due 2017
Net valuation of the Company's derivatives subject to fair value measurement on a recurring basis
Face Value	22,650,000	350,000,000	$ 200,000,000	$ 150,000,000
Senior Notes | 10% Senior Secured Notes due 2021
Net valuation of the Company's derivatives subject to fair value measurement on a recurring basis
Face Value	14,177,000	0
Payment in Kind (PIK) Note | 10% Senior Secured PIK Notes due 2021
Net valuation of the Company's derivatives subject to fair value measurement on a recurring basis
Face Value	243,468,000	0
Quoted Prices in Active Markets (Level 1)
Derivatives, Fair Value [Line Items]
Commodity derivatives at fair value	0	0
Significant Other Observable Inputs (Level 2)
Derivatives, Fair Value [Line Items]
Commodity derivatives at fair value	(228,000)	1,508,000
Significant Unobservable Inputs (Level 3)
Derivatives, Fair Value [Line Items]
Commodity derivatives at fair value	0	0
Fair Value
Net valuation of the Company's derivatives subject to fair value measurement on a recurring basis
Long-term debt, fair value	194,706,000	238,000,000
Fair Value | Senior Notes | 10% Senior Unsecured Notes due 2017
Net valuation of the Company's derivatives subject to fair value measurement on a recurring basis
Long-term debt, fair value	18,799,000	238,000,000
Fair Value | Senior Notes | 10% Senior Secured Notes due 2021
Net valuation of the Company's derivatives subject to fair value measurement on a recurring basis
Long-term debt, fair value	10,349,000	0
Fair Value | Payment in Kind (PIK) Note | 10% Senior Secured PIK Notes due 2021
Net valuation of the Company's derivatives subject to fair value measurement on a recurring basis
Long-term debt, fair value	165,558,000	0
Carrying Value
Net valuation of the Company's derivatives subject to fair value measurement on a recurring basis
Long-term debt, fair value	280,930,000	347,008,000
Carrying Value | Senior Notes | 10% Senior Unsecured Notes due 2017
Net valuation of the Company's derivatives subject to fair value measurement on a recurring basis
Long-term debt, fair value	22,538,000	347,008,000
Carrying Value | Senior Notes | 10% Senior Secured Notes due 2021
Net valuation of the Company's derivatives subject to fair value measurement on a recurring basis
Long-term debt, fair value	15,286,000	0
Carrying Value | Payment in Kind (PIK) Note | 10% Senior Secured PIK Notes due 2021
Net valuation of the Company's derivatives subject to fair value measurement on a recurring basis
Long-term debt, fair value	$ 243,106,000	$ 0