Consolidated Balance Sheets - Successor [Member] - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Current Assets:
Cash and cash equivalents	$ 7,806	$ 303
Accounts receivable	27,263	17,490
Fair value of commodity derivatives	5,148	458
Other current assets	2,352	3,228
Total Current Assets	42,569	21,479
Property and Equipment:
Property and Equipment, Full Cost Method, including $50,377 and $33,354 of unproved property costs not being amortized	712,166	517,074
Less - Accumulated depreciation, depletion, and amortization	(216,769)	(169,879)
Property and Equipment, Net	495,397	347,195
Other Long-Term Assets	13,304	8,625
Total Assets	551,270	377,299
Current Liabilities:
Accounts payable and accrued liabilities	44,437	40,434
Fair value of commodity derivatives	5,075	15,823
Accrued capital costs	10,883	11,954
Accrued interest	2,106	1,721
Undistributed oil and gas revenues	12,996	9,192
Total Current Liabilities	75,497	79,124
Long-Term Debt	265,325	198,000
Asset Retirement Obligation	8,678	22,291
Other Long-Term Liabilities	8,312	1,829
Stockholders' Equity:
Preferred Stock, Value, Outstanding	0	0
Common Stock, Value, Issued	116	101
Additional paid-in capital	279,111	232,917
Treasury Stock, Value	1,452	675
Retained earnings (Accumulated deficit)	(84,317)	(156,288)
Total Stockholders' Equity (Deficit)	193,458	76,055
Total Liabilities and Stockholders' Equity	$ 551,270	$ 377,299

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.