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Basis of Presentation (Details) - Discontinued Operations, Disposed of by Sale - Semiconductor Cryogenics Business
$ in Millions
Jul. 01, 2019
USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]  
Consideration $ 661.1
Net working capital adjustments 6.3
Net proceeds from the sale $ 553.1