Revenue and Customers - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	1 Months Ended	11 Months Ended	12 Months Ended
	Feb. 05, 2021	Dec. 31, 2021	Dec. 31, 2023	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Operating revenues	$ 77,481	$ 770,325	$ 2,589,018	$ 1,413,847
Contract drilling services
Disaggregation of Revenue [Line Items]
Operating revenues	74,051	708,131	2,461,715	1,332,841
Floaters
Disaggregation of Revenue [Line Items]
Operating revenues	50,057	482,283	2,010,113	997,819
Jackups
Disaggregation of Revenue [Line Items]
Operating revenues	$ 23,994	$ 225,848	$ 451,602	$ 335,022