Revenue and Customers - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Operating revenues	$ 3,057,818	$ 2,589,018	$ 1,413,847
Contract drilling services
Disaggregation of Revenue [Line Items]
Operating revenues	2,918,767	2,461,715	1,332,841
Floaters
Disaggregation of Revenue [Line Items]
Operating revenues	2,349,644	2,010,113	997,819
Jackups
Disaggregation of Revenue [Line Items]
Operating revenues	$ 569,123	$ 451,602	$ 335,022