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Business (Narrative) (Details)
$ in Millions
Jan. 13, 2017
Facility
Dec. 31, 2017
Nov. 17, 2017
USD ($)
Tectum, Inc. [Member]      
Business And Basis Of Presentation [Line Items]      
Number of manufacturing facility | Facility 2    
EMEA and Pacific Rim Business [Member]      
Business And Basis Of Presentation [Line Items]      
Consideration to be received in connection with sale of businesses | $     $ 330.0
WAVE [Member]      
Business And Basis Of Presentation [Line Items]      
Equity interest percentage   50.00%