LONG TERM DEBT - Schedule of Long Term Debt (Details) - USD ($) $ in Thousands |
12 Months Ended | |||
|---|---|---|---|---|
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Oct. 21, 2019 |
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| Line of Credit Facility [Line Items] | ||||
| Principal | $ 949,755 | $ 1,127,733 | ||
| Unamortized debt discounts and premiums | 2,041 | 4,860 | ||
| Unamortized debt issuance costs | (6,953) | (14,432) | ||
| Total debt | 944,843 | 1,118,161 | ||
| Less current portion of long-term debt | (65,000) | 0 | ||
| Total long-term debt | 879,843 | 1,118,161 | ||
| Write-off of debt issuance costs | 1,543 | 0 | $ 0 | |
| Revolving Credit Facility | ||||
| Line of Credit Facility [Line Items] | ||||
| Principal | 532,000 | 580,000 | ||
| Write-off of debt issuance costs | 1,500 | 0 | ||
| Revolving Credit Facility | Other Noncurrent Assets | ||||
| Line of Credit Facility [Line Items] | ||||
| Unamortized debt issuance costs | (6,500) | (9,800) | ||
| 8.5% Second Lien Notes due 2023 | ||||
| Line of Credit Facility [Line Items] | ||||
| Principal | 287,755 | 417,733 | ||
| Total debt | $ 200,000 | |||
| Unsecured Ven Bakken Note | ||||
| Line of Credit Facility [Line Items] | ||||
| Principal | $ 130,000 | $ 130,000 | ||
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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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after accumulated amortization, of debt discount (premium). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition 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. No definition available.
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- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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