Debt - Interest Rates (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
New Ultraco Debt Facility
Debt Instrument [Line Items]
Commitment fee percentage	40.00%	40.00%	40.00%	40.00%
Norwegian Bond Debt Facility
Debt Instrument [Line Items]
Interest rate		8.25%		8.25%
Super Senior Facility
Debt Instrument [Line Items]
Commitment fee percentage		40.00%		40.00%
Super Senior Facility | Senior Subordinated Notes
Debt Instrument [Line Items]
Interest rate		2.58%		2.58%
Holdco Revolving Credit Facility
Debt Instrument [Line Items]
Interest rate		6.15%		5.61%
Commitment fee percentage		40.00%		40.00%
Minimum | Convertible Bond Debt
Debt Instrument [Line Items]
Interest rate	5.00%	5.00%	5.00%	5.00%
Minimum | New Ultraco Debt Facility
Debt Instrument [Line Items]
Interest rate	3.93%	2.61%	2.35%	2.60%
Minimum | Super Senior Facility | Senior Subordinated Notes
Debt Instrument [Line Items]
Interest rate		2.24%		2.24%
Minimum | Holdco Revolving Credit Facility
Debt Instrument [Line Items]
Interest rate		2.55%		2.55%
Weighted Average | Convertible Bond Debt
Debt Instrument [Line Items]
Interest rate	5.25%	10.14%	5.35%	10.14%
Weighted Average | New Ultraco Debt Facility
Debt Instrument [Line Items]
Interest rate		3.39%		3.28%
Weighted Average | New Ultraco Debt Facility | Senior Subordinated Notes
Debt Instrument [Line Items]
Interest rate	4.80%		3.85%
Weighted Average | Norwegian Bond Debt Facility
Debt Instrument [Line Items]
Interest rate		9.05%		9.02%
Maximum | New Ultraco Debt Facility
Debt Instrument [Line Items]
Interest rate	5.39%	2.68%	5.39%	2.72%
Maximum | Holdco Revolving Credit Facility
Debt Instrument [Line Items]
Interest rate		2.60%		2.60%