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Business Segments - Additional Information (Detail) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2021 USD ($) Rigs | Jun. 30, 2020 USD ($) | Dec. 31, 2021 USD ($) Rigs Segment | Dec. 31, 2020 USD ($) Customer | Dec. 31, 2019 USD ($) Customer
Segment Reporting Information [Line Items] |  |  |  |  |
Number of reportable business segments | Segment |  |  | 3 |  |
Impairment charge of drilling equipment |  | $ 8,300 |  |  |
Total operating revenues |  |  | $ 1,357,081 | $ 1,124,249 | $ 2,470,685
Long-lived assets | $ 2,331,755 |  | 2,331,755 | $ 2,761,041 |
Major Customer |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Number of customers accounted for 10% or more of consolidated revenues | Customer |  |  |  | 0 | 0
One customer [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total operating revenues |  |  | $ 216,000 |  |
Consolidated Revenue, Percentage |  |  | 16.00% |  |
COLOMBIA |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Long-lived assets | 39,300 |  | $ 39,300 |  |
Rigs and Spare Rig Components That Would No Longer Be Marketed |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Impairment charge of drilling equipment | $ 220,000 | $ 8,300 |  |  | $ 173,000
Contract Drilling |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Marketable land-based drilling rigs | Rigs | 184 |  | 184 |  |
Total operating revenues |  |  | $ 664,030 | $ 669,126 | $ 1,308,350
Contract Drilling | COLOMBIA |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total operating revenues |  |  | $ 15,800 |  |

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