Segment Information - Operating revenues (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) segment	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Segment Information
Number of reportable segments | segment	5
Operating revenues	$ 3,005,981	$ 2,653,766	$ 2,017,548
Operating segments | U.S. Drilling
Segment Information
Operating revenues	1,207,629	1,100,614	669,656
Operating segments | Canada Drilling
Segment Information
Operating revenues			39,336
Operating segments | International Drilling
Segment Information
Operating revenues	1,345,249	1,199,282	1,043,197
Operating segments | Drilling Solutions
Segment Information
Operating revenues	301,757	243,349	172,473
Operating segments | Rig Technologies
Segment Information
Operating revenues	242,768	195,129	149,273
Other reconciling items
Segment Information
Operating revenues	$ (91,422)	$ (84,608)	$ (56,387)