Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Predecessor [Member]
Property, Plant and Equipment [Abstract]
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)
Property, Plant and Equipment, Net		457,903
Accounts Payable and Accrued Liabilities [Abstract]
Trade accounts payable		0
Accrued operating expenses		0
Accrued payroll costs		0
Asset retirement obligation - current portion		7,165
Accrued taxes		0
Derivative Liability, Current		0
Accrued Professional Fees, Current		0
Other payables		498
Total accounts payable and accrued liabilities		$ 7,663
Successor [Member]
Property, Plant and Equipment [Abstract]
Proved oil and gas properties	$ 480,499
Unproved oil and gas properties	33,354
Furniture, fixtures, and other equipment	3,221
Less - Accumulated depreciation, depletion, and amortization	(169,879)
Property, Plant and Equipment, Net	347,195
Accounts Payable and Accrued Liabilities [Abstract]
Trade accounts payable	10,563
Accrued operating expenses	2,990
Accrued payroll costs	4,730
Asset retirement obligation - current portion	9,965
Accrued taxes	3,937
Derivative Liability, Current	17,632
Accrued Professional Fees, Current	3,075
Other payables	3,365
Total accounts payable and accrued liabilities	$ 56,257