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Long-term Debt - Schedule of Long-term Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Nov. 19, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Total long-term debt	$ 710,000		$ 2,711,573
Senior unsecured notes
Debt Instrument [Line Items]
Total principal of senior unsecured notes	0		1,982,568
Less: unamortized deferred financing costs on senior unsecured notes	0		(15,618)
Senior unsecured notes | 6.50% senior unsecured notes due November 1, 2021
Debt Instrument [Line Items]
Total principal of senior unsecured notes	$ 0	$ 43,600	71,835
Debt stated interest rate (percent)	6.50%	6.50%
Senior unsecured notes | 6.875% senior unsecured notes due March 15, 2022
Debt Instrument [Line Items]
Total principal of senior unsecured notes	$ 0	$ 834,500	890,980
Debt stated interest rate (percent)		6.875%
Senior unsecured notes | 6.875% senior unsecured notes due January 15, 2023
Debt Instrument [Line Items]
Total principal of senior unsecured notes	0	$ 307,700	351,953
Debt stated interest rate (percent)		6.875%
Senior unsecured notes | 6.25% senior unsecured notes due May 1, 2026
Debt Instrument [Line Items]
Total principal of senior unsecured notes	$ 0	$ 395,100	400,000
Debt stated interest rate (percent)	6.25%	6.25%
Senior unsecured notes | 2.625% senior unsecured convertible notes due September 15, 2023
Debt Instrument [Line Items]
Total principal of senior unsecured notes	$ 0	$ 244,800	267,800
Less: unamortized debt discount on senior unsecured convertible notes	$ 0		(50,877)
Debt stated interest rate (percent)	2.625%	2.625%
Revolving credit facility | Credit Facility | Predecessor Credit Facility
Debt Instrument [Line Items]
Total principal of senior unsecured notes	$ 0		337,000
Revolving credit facility | Credit Facility | Oasis Credit Facility
Debt Instrument [Line Items]
Total principal of senior unsecured notes	260,000		0
Revolving credit facility | Credit Facility | OMP Credit Facility
Debt Instrument [Line Items]
Total principal of senior unsecured notes	$ 450,000		$ 458,500

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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.

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Contractual interest rate for funds borrowed, under the debt agreement.

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