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, 2022	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Operating revenues	$ 77,481	$ 770,325	$ 1,413,847	$ 964,272
Contract drilling services
Disaggregation of Revenue [Line Items]
Operating revenues	74,051	708,131	1,332,841	909,236
Floaters
Disaggregation of Revenue [Line Items]
Operating revenues	50,057	482,283	997,819	491,407
Jackups
Disaggregation of Revenue [Line Items]
Operating revenues	$ 23,994	$ 225,848	$ 335,022	$ 417,829