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v3.20.1

Long-Term Debt - Additional Information (Details) | 3 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Mar. 31, 2020 USD ($) day $ / shares | Mar. 31, 2019 USD ($) | Jul. 01, 2020 USD ($) | Jun. 01, 2020 USD ($) | Apr. 24, 2020 USD ($) | Apr. 23, 2020 USD ($) | Dec. 31, 2019 USD ($) | Apr. 15, 2019 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Total long-term debt | $ 2,777,932,000 |  |  |  |  |  | $ 2,711,573,000 |
Gain on extinguishment of debt | 83,887,000 | $ 0 |  |  |  |  |  |
Unsecured Senior Notes |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Long-term debt, fair value | 331,500,000 |  |  |  |  |  |  |
Senior Notes |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Aggregate principal amount of debt repurchased | 133,900,000 |  |  |  |  |  |  |
Cost of debt repurchased | 52,900,000 |  |  |  |  |  |  |
Gain on extinguishment of debt | 80,200,000 |  |  |  |  |  |  |
Write-off of deferred finance cost | 800,000 |  |  |  |  |  |  |
Senior Notes | 2022 and 2023 Notes |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Total long-term debt | 1,142,200,000 |  |  |  |  |  |  |
Senior Notes | 2.625% senior unsecured convertible notes due September 15, 2023 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Total long-term debt | $ 244,800,000 |  |  |  |  |  |  |
Stated interest rate (as percent) | 2.625% |  |  |  |  |  |  |
Aggregate principal amount of debt repurchased | $ 23,000,000.0 |  |  |  |  |  |  |
Cost of debt repurchased | 15,200,000 |  |  |  |  |  |  |
Gain on extinguishment of debt | 3,700,000 |  |  |  |  |  |  |
Write-off of deferred finance cost | 200,000 |  |  |  |  |  |  |
Amortization of debt discount | 4,200,000 |  |  |  |  |  |  |
Equity component of convertible debt | 300,000 |  |  |  |  |  |  |
Debt issued | $ 244,800,000 |  |  |  |  |  |  |
Debt conversion rate per $1000 principal (in shares per $1000) | 0.076365 |  |  |  |  |  |  |
Debt conversion price (in dollars per share) | $ / shares | $ 13.10 |  |  |  |  |  |  |
Senior Notes | 2.625% senior unsecured convertible notes due September 15, 2023 | Debt Conversion Scenario 1 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Number of trading days | day | 20 |  |  |  |  |  |  |
Number of consecutive trading days | day | 30 |  |  |  |  |  |  |
Stock price relative to conversion price (percent) | 130.00% |  |  |  |  |  |  |
Senior Notes | 2.625% senior unsecured convertible notes due September 15, 2023 | Debt Conversion Scenario 2 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Number of trading days | day | 5 |  |  |  |  |  |  |
Number of consecutive trading days | day | 5 |  |  |  |  |  |  |
Stock price relative to product of sale price and conversion rate (percent) | 98.00% |  |  |  |  |  |  |
Senior Notes | 6.50% senior unsecured notes due November 1, 2021 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Stated interest rate (as percent) | 6.50% |  |  |  |  |  |  |
Aggregate principal amount of debt repurchased | $ 28,200,000 |  |  |  |  |  |  |
Senior Notes | 6.875% senior unsecured notes due March 15, 2022 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Stated interest rate (as percent) | 6.875% |  |  |  |  |  |  |
Aggregate principal amount of debt repurchased | $ 56,500,000 |  |  |  |  |  |  |
Senior Notes | 6.875% senior unsecured notes due January 15, 2023 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Stated interest rate (as percent) | 6.875% |  |  |  |  |  |  |
Aggregate principal amount of debt repurchased | $ 44,200,000 |  |  |  |  |  |  |
Senior Notes | 6.25% senior unsecured notes due May 1, 2026 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Stated interest rate (as percent) | 6.25% |  |  |  |  |  |  |
Aggregate principal amount of debt repurchased | $ 4,900,000 |  |  |  |  |  |  |
Senior Notes | Notes |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Unsecured debt | $ 1,580,900,000 |  |  |  |  |  |  |
Senior Notes | Notes | Minimum |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Stated interest rate (as percent) | 6.25% |  |  |  |  |  |  |
Senior Notes | Notes | Maximum |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Stated interest rate (as percent) | 6.875% |  |  |  |  |  |  |
Revolving Credit Facility | Credit Facility |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Line of credit facility amount | $ 3,000,000,000.0 |  |  |  |  |  |  |
Line of credit facility, remaining borrowing capacity | 559,100,000 |  |  |  |  |  |  |
Revolving Credit Facility | Credit Facility | Expected |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Credit facility borrowing base |  |  | $ 600,000,000.0 | $ 612,500,000 |  |  |  |
Revolving Credit Facility | Credit Facility | Subsequent Event |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Credit facility borrowing base |  |  |  |  | $ 625,000,000.0 | $ 1,300,000,000.0 |  |
Line of credit facility, current borrowing capacity |  |  |  |  | 625,000,000.0 | $ 1,100,000,000.0 |  |
Revolving Credit Facility | Credit Facility | Oasis Credit Facility |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Total long-term debt | 522,000,000.0 |  |  |  |  |  |  |
Line of credit facility, current borrowing capacity | $ 1,100,000,000.0 |  |  |  |  |  |  |
Weighted average interest rate (as percent) | 2.70% |  |  |  |  |  |  |
Letters of credit outstanding | $ 18,900,000 |  |  |  |  |  |  |
Interest charges | 29,300,000 |  |  |  |  |  |  |
Revolving Credit Facility | Credit Facility | Oasis Credit Facility | Subsequent Event |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Cash on hand threshold for prepayments |  |  |  |  | $ 60,000,000 |  |  |
Company's maximum ratio -Total Debt to EBITDA |  |  |  |  | 4.00 |  |  |
Revolving Credit Facility | Credit Facility | OMP Credit Facility |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Total long-term debt | 487,500,000 |  |  |  |  |  |  |
Credit facility borrowing base | $ 575,000,000.0 |  |  |  |  |  |  |
Weighted average interest rate (as percent) | 2.90% |  |  |  |  |  |  |
Letters of credit outstanding | $ 1,700,000 |  |  |  |  |  |  |
Interest charges | 25,900,000 |  |  |  |  |  |  |
Line of credit facility, remaining borrowing capacity | $ 85,800,000 |  |  |  |  |  |  |
Revolving Credit Facility | Credit Facility | OMP Credit Facility | Minimum |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Commitment fee percentage | 0.375% |  |  |  |  |  |  |
Revolving Credit Facility | Credit Facility | OMP Credit Facility | Maximum |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Commitment fee percentage | 0.50% |  |  |  |  |  |  |
Revolving Credit Facility | Swingline Loan |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Credit facility borrowing base |  |  |  |  |  |  |  | $ 50,000,000.0
Revolving Credit Facility | Swingline Loan | Subsequent Event |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Credit facility borrowing base |  |  |  |  | $ 100,000,000.0 |  |  |

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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. + 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)(3) -URI http://asc.fasb.org/extlink&oid=109500613&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(a)(16)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 Reference 3: 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=6876686&loc=d3e534808-122878 Reference 4: 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=6877327&loc=d3e13212-122682 + Details
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