Property and Equipment - Schedule of Property and Equipment, at Cost (Details) - USD ($) $ in Thousands |
Sep. 30, 2026 |
Dec. 31, 2025 |
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| Property, Plant, and Equipment [Line Items] | ||
| Property and equipment, at cost | $ 7,159,641 | $ 6,639,045 |
| Drilling equipment and facilities | ||
| Property, Plant, and Equipment [Line Items] | ||
| Property and equipment, at cost | 6,659,138 | 6,332,098 |
| Construction in progress | ||
| Property, Plant, and Equipment [Line Items] | ||
| Property and equipment, at cost | 403,170 | 215,637 |
| Other | ||
| Property, Plant, and Equipment [Line Items] | ||
| Property and equipment, at cost | $ 97,333 | $ 91,310 |
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- Definition Amount, before accumulated depreciation, depletion, and amortization, of property, plant, and equipment. Includes, but is not limited to, land and land improvement; building; machinery and equipment; furniture and fixture; and work of art, historical treasure, or similar asset classified as collection. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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