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Details of Selected Balance Sheet Accounts - Narrative (Details) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) rig | Dec. 31, 2018 rig
Concentration Risk [Line Items] |  |  |  |
Increase in contract with customer, asset | $ 3,900 | $ 9,800 |  |
Contract with customer, asset, increase due to revenue recognized | 38,900 | 22,800 |  |
Contract with customer, asset, reclassified to receivable | 35,000 | 32,400 |  |
Increased (decreased) deferred revenue | (148) | 25,549 | $ 3,470 |
Contract with customer, liability, revenue recognized | 10,500 | 16,000 |  |
Contract with customer, liability, increase due to billings | 10,400 | 41,600 |  |
Increase (decrease) in contract with customer, liability |  | 25,600 |  |
Impairments of inventories | 3,581 | 31,151 | 0 |
Depreciation | 60,100 | 73,600 | 96,500 |
Impairment of fixed asset | 1,372 | 10,468 | $ 33,697 |
Well Site Services |  |  |  |
Concentration Risk [Line Items] |  |  |  |
Impairments of inventories | 1,500 | 9,000 |  |
Impairment of fixed asset | 1,400 |  |  |
Well Site Services | Well Site Services Drilling Services |  |  |  |
Concentration Risk [Line Items] |  |  |  |
Number of rigs | rig |  |  | 9 | 34
Number of rigs to be disposed of | rig |  |  | 25 |
Impairment of long-lived assets to be disposed of |  |  | $ 25,500 |
Impairment, long-lived asset, held-for-use |  |  | $ 8,200 |
Impairment of fixed asset |  | 5,200 |  |
Well Site Services | Completion Services |  |  |  |
Concentration Risk [Line Items] |  |  |  |
Impairment of fixed asset |  | 3,600 |  |
Downhole Technologies |  |  |  |
Concentration Risk [Line Items] |  |  |  |
Impairments of inventories | $ 2,100 | 5,900 |  |
Impairment of fixed asset |  | $ 1,600 |  |
United States | Geographic Concentration Risk | Accounts Receivable |  |  |  |
Concentration Risk [Line Items] |  |  |  |
Concentration risk, percentage | 73.00% |  |  |
United Kingdom | Geographic Concentration Risk | Accounts Receivable |  |  |  |
Concentration Risk [Line Items] |  |  |  |
Concentration risk, percentage | 14.00% |  |  |

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