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Discontinued Operations - Narratives (Details) - Spinoff - Exterran Corporation - USD ($) $ in Thousands | 12 Months Ended |
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Dec. 31, 2020 | Dec. 31, 2018 | Dec. 31, 2019
Discontinued Operations |  |  |
Proceeds under terms of separation and distribution agreement | $ 700 | $ 18,700 |
Deferred tax liabilities | 7,868 |  | $ 8,508
Indemnification asset | $ 7,868 |  | $ 8,508

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