Property, Plant, and Equipment - Narratives (Details) - USD ($) |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2021 |
Sep. 30, 2020 |
Sep. 30, 2021 |
Sep. 30, 2020 |
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| Property, Plant and Equipment [Line Items] | ||||
| Proceeds from disposal of property and equipment | $ 9,581,000 | $ 4,859,000 | ||
| Gain (loss) on disposal of property and equipment | 4,632,000 | 927,000 | ||
| Comprehensive Income | ||||
| Property, Plant and Equipment [Line Items] | ||||
| Proceeds from disposal of property and equipment | $ 4,900,000 | $ 2,700,000 | 9,500,000 | 4,900,000 |
| Gain (loss) on disposal of property and equipment | 3,000,000 | (600,000) | 4,600,000 | 200,000 |
| Other property and equipment | ||||
| Property, Plant and Equipment [Line Items] | ||||
| Impairment charges | 0 | 0 | ||
| Drilling rigs and related equipment | ||||
| Property, Plant and Equipment [Line Items] | ||||
| Proceeds from disposal of property and equipment | $ 0 | $ 0 | $ 0 | |
| Gain (loss) on disposal of property and equipment | $ 700,000 | |||
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- Definition Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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. No definition available.
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- Definition The charge against earnings resulting from the aggregate write down of tangible assets from their carrying value to their fair value. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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