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Long-Term Debt - OMP Debt (Details) - USD ($)		1 Months Ended	11 Months Ended	12 Months Ended
Long-Term Debt - OMP Debt (Details) - USD ($)	Mar. 30, 2021	Dec. 31, 2020	Nov. 19, 2020	Dec. 31, 2021	Dec. 31, 2019
Debt Instrument [Line Items]
Long-term debt, net		$ 260,000,000		$ 392,524,000
Proceeds from issuance of senior unsecured notes		0	$ 0	850,000,000	$ 0
OMP Credit Facility \| Line of credit
Debt Instrument [Line Items]
Long-term debt, net		450,000,000		203,000,000
Outstanding letters of credit		$ 0		$ 5,500,000
OMP Senior Notes \| Unsecured Debt
Debt Instrument [Line Items]
Long-term debt, gross	$ 450,000,000
Debt stated interest rate (percent)	8.00%
Proceeds from issuance of senior unsecured notes	$ 440,100,000