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v3.19.3

Long-Term Debt - Additional Information (Details) | 9 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2019 USD ($) day $ / shares | Nov. 04, 2019 USD ($) | Aug. 16, 2019 USD ($) | May 06, 2019 USD ($) | May 05, 2019 USD ($) | Apr. 15, 2019 USD ($) | Dec. 31, 2018 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |
Total long-term debt | $ 2,798,859,000 |  |  |  |  |  | $ 2,735,276,000
Unsecured Senior Notes |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Long-term debt, fair value | 1,792,400,000 |  |  |  |  |  |
Senior Notes | 2022 and 2023 Notes |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Total long-term debt | 1,267,600,000 |  |  |  |  |  |
Senior Notes | 2.625% senior unsecured convertible notes due September 15, 2023 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Total long-term debt | $ 300,000,000.0 |  |  |  |  |  |
Stated interest rate (as percent) | 2.625% |  |  |  |  |  |
Debt issued | $ 300,000,000.0 |  |  |  |  |  |
Debt conversion rate per $1000 principal (in shares per $1000) | 0.076365 |  |  |  |  |  |
Debt conversion price (in dollars per share) | $ / shares | $ 13.10 |  |  |  |  |  |
Senior Notes | Notes |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Unsecured debt | $ 1,739,400,000 |  |  |  |  |  |
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% |  |  |  |  |  |
Senior Notes | Debt Conversion Scenario 1 | 2.625% senior unsecured convertible notes due September 15, 2023 |  |  |  |  |  |  |
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 | Debt Conversion Scenario 2 | 2.625% senior unsecured convertible notes due September 15, 2023 |  |  |  |  |  |  |
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% |  |  |  |  |  |
Revolving Credit Facility | Credit Facility |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Line of credit facility amount | $ 3,000,000,000.0 |  |  |  |  |  |
Credit facility borrowing base |  |  |  |  |  | $ 1,600,000,000.0 |
Line of credit facility, current borrowing capacity |  |  |  |  |  | 1,350,000,000.0 |
Revolving Credit Facility | Credit Facility | Subsequent Event |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Credit facility borrowing base |  | $ 1,300,000,000.0 |  |  |  |  |
Line of credit facility, current borrowing capacity |  | $ 1,100,000,000.0 |  |  |  |  |
Revolving Credit Facility | Credit Facility | Oasis Credit Facility |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Total long-term debt | $ 406,000,000.0 |  |  |  |  |  |
Weighted average interest rate (as percent) | 3.80% |  |  |  |  |  |
Letters of credit outstanding | $ 14,000,000.0 |  |  |  |  |  |
Line of credit facility, remaining borrowing capacity | 930,000,000.0 |  |  |  |  |  |
Revolving Credit Facility | Credit Facility | OMP Credit Facility |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Total long-term debt | 431,000,000.0 |  |  |  |  |  |
Credit facility borrowing base | $ 575,000,000.0 |  | $ 575,000,000.0 | $ 475,000,000.0 | $ 400,000,000.0 |  |
Weighted average interest rate (as percent) | 4.10% |  |  |  |  |  |
Letters of credit outstanding | $ 8,200,000 |  |  |  |  |  |
Line of credit facility, remaining borrowing capacity | $ 135,800,000 |  |  |  |  |  |
Maximum borrowing capacity subject to certain conditions |  |  | $ 775,000,000.0 | $ 675,000,000.0 |  |  |
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 | Credit Facility | LIBOR | Minimum |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Commitment fee percentage | 0.375% |  |  |  |  |  |
Revolving Credit Facility | Credit Facility | LIBOR | 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 |

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