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v3.21.1

LONG-TERM DEBT (Narrative) (Details) | 3 Months Ended |  |  |
--- | --- | --- | --- | ---
Mar. 31, 2021 USD ($) day | Mar. 31, 2020 USD ($) | Dec. 31, 2020 USD ($) | Oct. 08, 2020 USD ($) | Dec. 31, 2019 USD ($)
Debt Instrument [Line Items] |  |  |  |  |
Debtor-in-possession financing, letters of credit outstanding | $ 262,500,000 |  |  |  |
Debtor-in-possession financing, amount arranged | 105,000,000 |  |  |  |
Debtor-in-possession financing, borrowings outstanding | $ 157,500,000 |  |  |  |
Debtor-in-possession financing, number of business days after petition date to terminate | day | 3 |  |  |  |
Debtor-in-possession financing, number of dates after the entry of the interim order to terminate | day | 35 |  |  |  |
Interest capitalized | $ 0 | $ 187,000 |  |  |
Oil and Gas Properties |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest capitalized | 0 | $ 200,000 |  |  |
Senior Notes | Carry Value |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Carrying value of notes | 1,800,000,000 |  |  |  |
Senior Notes | Fair Value | Level 1 |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Carrying value of notes | $ 1,600,000,000 |  |  |  |
DIP credit facility | Revolving Credit Agreement |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Weight average interest rate | 5.50% |  |  |  |
DIP credit facility | Revolving Credit Agreement | Eurodollar |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Variable interest rate | 4.50% |  |  |  |
DIP credit facility | Revolving Credit Agreement | Base Rate |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Variable interest rate | 3.50% |  |  |  |
Revolving Credit Agreement | DIP credit facility |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term debt | $ 157,500,000 |  | $ 157,500,000 |  |
Remaining borrowing capacity | 76,500,000 |  |  |  |
Revolving Credit Agreement | Pre-petition revolving credit facility |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term debt | 316,759,000 |  | $ 292,910,000 |  |
Revolving Credit Agreement | Pre-petition revolving credit facility | Nova Scotia, Amegy, KeyBank |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term debt | 316,800,000 |  |  |  |
Remaining borrowing capacity | 0 |  |  |  |
Letter of Credit | DIP credit facility |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Credit facility outstanding | $ 28,500,000 |  |  |  |
Letter of Credit | DIP credit facility | Revolving Credit Agreement |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Commitment fee percentage | 0.20% |  |  |  |
Letter of Credit | Pre-petition revolving credit facility | Nova Scotia, Amegy, KeyBank |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Credit facility outstanding | $ 121,200,000 |  |  |  |
Proceeds from line of credit | 26,100,000 |  |  |  |
Letter of Credit | Pre-petition revolving credit facility | Nova Scotia, Amegy, KeyBank | Prepaid Expenses and Other Current Assets |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Credit facility outstanding | $ 99,100,000 |  |  |  |
Revolving Credit Facility | DIP credit facility | Revolving Credit Agreement |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Commitment fee percentage | 0.50% |  |  |  |
Revolving Credit Facility | Pre-petition revolving credit facility |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Elected commitment amount |  |  |  | $ 580,000,000 | $ 700,000,000
Repayments of lines of credit | $ 2,200,000 |  |  |  |
Revolving Credit Facility | Pre-petition revolving credit facility | Revolving Credit Agreement | Nova Scotia, Amegy, KeyBank |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Weight average interest rate | 3.12% |  |  |  |

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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details
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- Definition Amount debtor-in-possession financing arranged (but not necessarily all borrowed). + References No definition available. + Details
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- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 + Details
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- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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