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Asset Impairments and Other Restructuring Items - Schedule of Asset Impairments (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Mar. 31, 2021 | Jun. 30, 2020 | Mar. 31, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Impaired Long-Lived Assets Held and Used [Line Items] |  |  |  |  |  |
Impairments of goodwill | $ 0 |  | $ 0 | $ 406,056 | $ 0 | $ 406,056
Impairment of goodwill loss, tax |  |  |  | 19,600 |  |
Impairment of goodwill loss, net of tax |  |  |  | 386,456 |  |
Impairments of fixed and lease assets | 2,794 | $ 650 | 2,992 | 5,198 | 3,444 | 8,190
Impairment of fixed assets, tax |  | 137 | 628 | 1,092 |  |
Impairment of fixed assets, net of tax |  | 513 | 2,364 | 4,106 |  |
Impairments of inventories |  |  |  | 25,230 | 0 | 25,230
Impairment of inventories, tax |  |  |  | 4,736 |  |
Impairment of inventories, net of tax |  |  |  | 20,494 |  |
Severance and restructuring costs | 2,554 | 3,418 | 5,397 | 660 |  |
Severance and facility closure costs, tax | 536 | 717 | 1,133 | 139 |  |
Severance and facility closure costs, net of tax | 2,018 | 2,701 | 4,264 | 521 |  |
Impairment of operating lease assets | 2,794 |  |  |  |  |
Impairment of operating lease assets, net of tax | 587 |  |  |  |  |
Impairment of operating lease assets, tax | 2,207 |  |  |  |  |
Corporate |  |  |  |  |  |
Impaired Long-Lived Assets Held and Used [Line Items] |  |  |  |  |  |
Impairments of goodwill |  |  |  | 0 |  |
Impairments of fixed and lease assets |  | 0 | 0 | 0 |  |
Impairments of inventories |  |  |  | 0 |  |
Severance and restructuring costs | 0 | 1,555 | 216 | 0 |  |
Impairment of operating lease assets | 0 |  |  |  |  |
Offshore/ Manufactured Products |  |  |  |  |  |
Impaired Long-Lived Assets Held and Used [Line Items] |  |  |  |  |  |
Impairments of goodwill |  |  |  |  |  | 86,500
Impairments of inventories |  |  |  |  |  | 16,200
Offshore/ Manufactured Products | Operating Segments |  |  |  |  |  |
Impaired Long-Lived Assets Held and Used [Line Items] |  |  |  |  |  |
Impairments of goodwill |  |  |  | 86,500 |  |
Impairments of fixed and lease assets |  | 0 | 0 | 0 |  |
Impairments of inventories |  |  |  | 16,249 |  |
Severance and restructuring costs | 0 | 282 | 322 | 112 |  |
Impairment of operating lease assets | 0 |  |  |  |  |
Downhole Technologies |  |  |  |  |  |
Impaired Long-Lived Assets Held and Used [Line Items] |  |  |  |  |  |
Impairments of goodwill |  |  |  |  |  | 192,500
Downhole Technologies | Operating Segments |  |  |  |  |  |
Impaired Long-Lived Assets Held and Used [Line Items] |  |  |  |  |  |
Impairments of goodwill |  |  |  | 192,502 |  |
Impairments of fixed and lease assets |  | 0 | 0 | 0 |  |
Impairments of inventories |  |  |  | 0 |  |
Severance and restructuring costs | 203 | 275 | 1,315 | 0 |  |
Impairment of operating lease assets | 0 |  |  |  |  |
Well Site Services |  |  |  |  |  |
Impaired Long-Lived Assets Held and Used [Line Items] |  |  |  |  |  |
Impairments of goodwill |  |  |  |  |  | 127,100
Impairments of inventories |  |  |  |  |  | $ 9,000
Operating lease, liability | 1,900 |  |  |  | $ 1,900 |
Well Site Services | Operating Segments |  |  |  |  |  |
Impaired Long-Lived Assets Held and Used [Line Items] |  |  |  |  |  |
Impairments of goodwill |  |  |  | 127,054 |  |
Impairments of fixed and lease assets |  | 650 | 2,992 | 5,198 |  |
Impairments of inventories |  |  |  | 8,981 |  |
Severance and restructuring costs | 2,351 | $ 1,306 | $ 3,544 | $ 548 |  |
Impairment of operating lease assets | $ 2,794 |  |  |  |  |

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