Revenue and Customers - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Disaggregation of Revenue [Line Items]
Operating revenues	$ 697,450	$ 305,872	$ 1,946,039	$ 791,255
Contract drilling services
Disaggregation of Revenue [Line Items]
Operating revenues	671,004	289,494	1,852,474	746,992
Floaters
Disaggregation of Revenue [Line Items]
Operating revenues	549,130	217,923	1,519,346	561,826
Jackups
Disaggregation of Revenue [Line Items]
Operating revenues	$ 121,874	$ 71,571	$ 333,128	$ 185,166