Segment Information - Operating revenues (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) segment	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Segment Information
Number of reportable segments | segment	5
Operating revenues	$ 2,653,766	$ 2,017,548	$ 2,134,043
U.S. Drilling
Segment Information
Operating revenues	1,100,614	669,656	713,057
Canada Drilling
Segment Information
Operating revenues		39,336	54,753
International Drilling
Segment Information
Operating revenues	1,199,282	1,043,197	1,131,673
Drilling Solutions
Segment Information
Operating revenues	243,349	172,473	149,834
Rig Technologies
Segment Information
Operating revenues	195,129	149,273	131,555
Operating segments | U.S. Drilling
Segment Information
Operating revenues	1,100,614	669,656	713,057
Operating segments | Canada Drilling
Segment Information
Operating revenues		39,336	54,753
Operating segments | International Drilling
Segment Information
Operating revenues	1,199,282	1,043,197	1,131,673
Operating segments | Drilling Solutions
Segment Information
Operating revenues	243,349	172,473	149,834
Operating segments | Rig Technologies
Segment Information
Operating revenues	195,129	149,273	131,555
Other reconciling items
Segment Information
Operating revenues	$ (84,608)	$ (56,387)	$ (46,829)