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Current ratio of credit facility.

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No definition available.

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Debt Instrument, Variable Interest Rate, Payable Assessment Period

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Funded debt to consolidated EBITDA ratio

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Interest Coverage Ratio

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Interest rate in addition to LIBOR.

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Loan origination fees paid to date. These fees are being amortized over the life of the agreement.

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No definition available.

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- Definition

Net leverage ratio

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Oil and Gas Property, Full Cost Method, Discount Percentage

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Percentage of New Common Stock received as an equity fee

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- Definition

Percentage of collateral pledged

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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No definition available.

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Description of the interest rate as being fixed or variable, and, if variable, identification of the index or rate on which the interest rate is based and the number of points or percentage added to that index or rate to set the rate, and other pertinent information, such as frequency of rate resets.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Amount of the required periodic payments applied to interest.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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Amount debtor-in-possession financing arranged (but not necessarily all borrowed).

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No definition available.

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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No definition available.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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- Definition

Discussion of whether the borrowings under the credit facility are secured or unsecured and, if secured, a description of collateral (for example, accounts receivable less than 120 days old, finished goods inventory).

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

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Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions).

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

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Long-Term Debt And Other Long-Term Liabilities (Narrative) (Details) - USD ($) $ in Thousands				1 Months Ended	2 Months Ended	8 Months Ended	9 Months Ended
	Sep. 03, 2020	May 15, 2020	May 02, 2018	Sep. 30, 2020	Aug. 31, 2020	Aug. 31, 2020	Sep. 30, 2020	Sep. 30, 2019	May 26, 2020	May 22, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Write off of debt issuance cost				$ 0	$ 0	$ (2,426)		$ 0
Present worth discounted							10.00%
Debt Instrument, Periodic Payment, Interest		$ 21,500
6.625% Senior Subordinated Notes Due 2021 [Member]
Debt Instrument [Line Items]
Debt instrument maturity date							May 15, 2021
Predecessor Credit Agreement [Member]
Debt Instrument [Line Items]
Commitment fee percentage under credit facility							0.375%
Origination, agency and syndication and other related fees with the credit agreement				$ 3,300			$ 3,300
Write off of debt issuance cost							$ (2,400)
Payable assessment term for LIBOR							90 days
LIBOR interest rate plus one percent							LIBOR plus 1.00% plus a margin
Predecessor Credit Agreement [Member] \| Minimum [Member]
Debt Instrument [Line Items]
LIBOR plus interest rate							1.50%
Predecessor Credit Agreement [Member] \| Maximum [Member]
Debt Instrument [Line Items]
LIBOR plus interest rate							2.50%
Predecessor Credit Agreement [Member] \| Proved developed producing total value of our oil and gas properties [Member]
Debt Instrument [Line Items]
Percentage of collateral pledged				80.00%			80.00%
Present worth discounted							8.00%
Superior Credit Agreement [Member]
Debt Instrument [Line Items]
Credit facility maximum credit amount				$ 250,000			$ 250,000
Commitment fee percentage under credit facility							0.375%
Origination, agency and syndication and other related fees with the credit agreement				1,700			$ 1,700
Superior Credit Agreement, Term							5 years
Credit facility current credit amount				200,000			$ 200,000
Superior Credit Agreement, Interest Rate Description							annual interest at a rate, at Superior’s option, equal to (a) LIBOR plus the applicable margin of 2.00% to 3.25% or (b) the alternate base rate (greater of (i) the federal funds rate plus 0.5%, (ii) the prime rate, and (iii) the Thirty-Day LIBOR Rate (as defined in the Superior credit agreement plus the applicable margin of 1.00% to 2.25%.
Superior Credit Agreement [Member] \| Long-term Debt
Debt Instrument [Line Items]
Long-term Line of Credit				12,000			$ 12,000				$ 16,500
Superior Credit Agreement [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Consolidated EBITDA to interest expense ratio							2.50 to 1.00
Superior Credit Agreement [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Funded debt to consolidated EBITDA ratio							4.00 to 1.00
DIP credit facility [Member]
Debt Instrument [Line Items]
Debtor-in-Possession Financing, Amount Arranged									$ 18,000	$ 36,000
Percentage of New Common Stock received as an equity fee	500.00%
Exit Credit Agreement [Member] \| Secured Debt [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Credit facility maximum credit amount	$ 140,000
Successor Exit Facility
Debt Instrument [Line Items]
Current ratio of credit facility	0.50
Interest Coverage Ratio	2.50
Successor Exit Facility \| Long-term Debt
Debt Instrument [Line Items]
Long-term Line of Credit				$ 131,600			$ 131,600				$ 0
Successor Exit Facility \| September 1, 2020 to March 31, 2021 [Member]
Debt Instrument [Line Items]
Net leverage ratio	4.00
Successor Exit Facility \| April 1, 2021 to June 30, 2022 [Member]
Debt Instrument [Line Items]
Net leverage ratio	3.75
Successor Exit Facility \| July 1, 2022 to September 30, 2022 [Member]
Debt Instrument [Line Items]
Net leverage ratio	3.50
Successor Exit Facility \| Revolving Credit Facility [Member] \| Eurodollar [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	5.25%
Successor Exit Facility \| Revolving Credit Facility [Member] \| Alternate Base Rate [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	4.25%
Successor Exit Facility \| Term loan [Member] \| Eurodollar [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	6.25%
Successor Exit Facility \| Term loan [Member] \| Alternate Base Rate [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	5.25%
Successor Exit Facility \| Letter of Credit [Member]
Debt Instrument [Line Items]
Letters of Credit Outstanding, Amount	$ 6,700
Successor Exit Facility \| Secured Debt [Member]
Debt Instrument [Line Items]
Debt instrument maturity date	Mar. 01, 2024
Successor Exit Facility \| Secured Debt [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Long-term Line of Credit	$ 92,000
Successor Exit Facility \| Secured Debt [Member] \| Term loan [Member]
Debt Instrument [Line Items]
Credit facility maximum credit amount	40,000
Long-term Line of Credit	$ 40,000
Pledge agreement [Member] \| Predecessor Credit Agreement [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Collateral			we granted a security interest in the limited liability membership interests and other equity interests we own in Superior