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Segment Information - Capital expenditures (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Segment Information |  |  |
Capital expenditures | $ 552,908 | $ 381,487 | $ 243,689
Operating segments | U.S. Drilling |  |  |
Segment Information |  |  |
Capital expenditures | 136,311 | 118,017 | 53,875
Operating segments | Canada Drilling |  |  |
Segment Information |  |  |
Capital expenditures |  |  | 2,938
Operating segments | International Drilling |  |  |
Segment Information |  |  |
Capital expenditures | 357,609 | 222,099 | 173,078
Operating segments | Drilling Solutions |  |  |
Segment Information |  |  |
Capital expenditures | 25,721 | 19,946 | 9,919
Operating segments | Rig Technologies |  |  |
Segment Information |  |  |
Capital expenditures | 21,229 | 15,660 | 2,790
Other reconciling items |  |  |
Segment Information |  |  |
Capital expenditures | $ 12,038 | $ 5,765 | $ 1,089

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