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Segment Information - Adjusted operating income (loss) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Segment Information |  |  |
Adjusted operating income (loss) | $ 194,414 | $ (80,787) | $ (171,461)
Operating segments |  |  |
Segment Information |  |  |
Adjusted operating income (loss) | 194,414 | (80,787) | (171,461)
Operating segments | U.S. Drilling |  |  |
Segment Information |  |  |
Adjusted operating income (loss) | 108,506 | (76,492) | (96,176)
Operating segments | Canada Drilling |  |  |
Segment Information |  |  |
Adjusted operating income (loss) | 13 | 2,893 | (11,766)
Operating segments | International Drilling |  |  |
Segment Information |  |  |
Adjusted operating income (loss) | (879) | (40,117) | (56,205)
Operating segments | Drilling Solutions |  |  |
Segment Information |  |  |
Adjusted operating income (loss) | 77,868 | 32,771 | 6,167
Operating segments | Rig Technologies |  |  |
Segment Information |  |  |
Adjusted operating income (loss) | $ 8,906 | $ 158 | $ (13,481)

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