Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Successor [Member]
Property and Equipment
Proved oil and gas properties	$ 518,289
Unproved oil and gas properties	47,310
Furniture, fixtures, and other equipment	3,726
Less - Accumulated depreciation, depletion, and amortization	(160,117)
Net Furniture, Fixtures and other equipment	409,208
Accounts Payable and Accrued Liabilities
Trade accounts payable	5,056
Accrued operating expenses	3,126
Accrued payroll costs	3,513
Asset retirement obligation - current portion	2,922
Accrued non-income based taxes	6,505
Accrued price risk liabilities	5,373
Accrued corporate and legal fees	4,472
Other payables	2,427
Total accounts payable and accrued liabilities	$ 33,394
Predecessor [Member]
Property and Equipment
Proved oil and gas properties		$ 5,972,666
Unproved oil and gas properties		18,839
Furniture, fixtures, and other equipment		44,252
Less - Accumulated depreciation, depletion, and amortization		(5,577,854)
Net Furniture, Fixtures and other equipment		457,903
Accounts Payable and Accrued Liabilities
Trade accounts payable		0
Accrued operating expenses		0
Accrued payroll costs		0
Asset retirement obligation - current portion		7,165
Accrued non-income based taxes		0
Accrued price risk liabilities		0
Accrued corporate and legal fees		0
Other payables		498
Total accounts payable and accrued liabilities		$ 7,663