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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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