Debt - Schedule of Interest Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Amortization of debt discount and debt issuance costs	$ 2,130	$ 7,083	$ 6,272
Commitment fees on revolving facilities	994	573	256
Interest Expense, Total	16,981	32,257	35,393
Convertible Debt
Debt Instrument [Line Items]
Line of credit facility, interest expense	5,547	5,738	5,738
Global Ultraco Debt Facility
Debt Instrument [Line Items]
Debt, interest expense	8,310	2,474	0
Global Ultraco Debt Facility | Interest Rate Swap
Debt Instrument [Line Items]
Interest rate gain (loss) reclassified to earnings	1,900	(500)
Norwegian Bond Debt
Debt Instrument [Line Items]
Debt, interest expense	0	11,710	15,298
New Ultraco Debt Facility
Debt Instrument [Line Items]
Debt, interest expense	0	4,335	7,612
New Ultraco Debt Facility | Interest Rate Swap
Debt Instrument [Line Items]
Interest rate gain (loss) reclassified to earnings	(500)	(300)
Holdco Revolving Credit Facility
Debt Instrument [Line Items]
Debt, interest expense	0	314	0
Super Senior Revolver Facility
Debt Instrument [Line Items]
Line of credit facility, interest expense	$ 0	$ 30	$ 216