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Business Combination (Narrative) (Details) - Mayasa [Member] - USD ($)
$ in Millions
Dec. 31, 2019
Nov. 29, 2019
Business Combination    
Finite lived intangible assets acquired   $ 22.3
Trade names and trademarks [Member]    
Business Combination    
Indefinite lived intangible assets acquired   36.0
Goodwill and acquisition intangibles [Member]    
Business Combination    
Provisional goodwill and intangibles related to Mayasa acquisition $ 128.1  
Goodwill [Member]    
Business Combination    
Residual goodwill   $ 75.6