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Dispositions - Narrative (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Mar. 31, 2021
--- | --- | ---
Business Acquisition [Line Items] |  |
Gain on disposition of business | $ 88,400 |
Assets | 889,926 | $ 843,959
ABZ and Quadrant Valves | Disposal Group, Held-for-sale or Disposed of by Sale, Not Discontinued Operations |  |
Business Acquisition [Line Items] |  |
Consideration for disposal group | 104,600 |
Assets | 15,000 |
Accrued liabilities | $ 1,200 |

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