Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets and Goodwill Intangible Assets (Details)

v3.20.4
Intangible Assets and Goodwill Intangible Assets (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Dec. 31, 2020
Sep. 30, 2020
Dec. 31, 2019
Nov. 21, 2019
Intangible Assets [Line Items]        
Finite-Lived Intangible Assets, Gross $ 1,014.5 $ 1,001.1    
Finite-Lived Intangible Assets, Accumulated Amortization (278.2) (267.2)    
Intangible Assets, Gross (Excluding Goodwill) 1,244.1 1,227.9    
Trade names        
Intangible Assets [Line Items]        
Indefinite-lived Intangible Assets (Excluding Goodwill) $ 229.6 226.8    
Minimum        
Intangible Assets [Line Items]        
Finite-Lived Intangible Asset, Useful Life 3 years      
Maximum        
Intangible Assets [Line Items]        
Finite-Lived Intangible Asset, Useful Life 21 years      
Trade names        
Intangible Assets [Line Items]        
Finite-Lived Intangible Assets, Gross $ 0.2 0.2    
Finite-Lived Intangible Assets, Accumulated Amortization (0.2) (0.2)    
Customer relationships        
Intangible Assets [Line Items]        
Finite-Lived Intangible Assets, Gross 809.2 787.6    
Finite-Lived Intangible Assets, Accumulated Amortization (166.8) (151.8)    
Technology, including patents        
Intangible Assets [Line Items]        
Finite-Lived Intangible Assets, Gross 139.7 137.6    
Finite-Lived Intangible Assets, Accumulated Amortization (55.3) (51.0)    
Computer Software, Intangible Asset [Member]        
Intangible Assets [Line Items]        
Finite-Lived Intangible Assets, Gross 65.4 65.6    
Finite-Lived Intangible Assets, Accumulated Amortization (55.9) (54.1)    
Backlog        
Intangible Assets [Line Items]        
Finite-Lived Intangible Assets, Gross 0.0   $ 10.0  
Finite-Lived Intangible Assets, Accumulated Amortization 0.0   $ (10.0)  
Other Intangible Assets [Member]        
Intangible Assets [Line Items]        
Finite-Lived Intangible Assets, Gross 0.0 0.1    
Finite-Lived Intangible Assets, Accumulated Amortization 0.0 $ (0.1)    
Molding Technology Solutions        
Intangible Assets [Line Items]        
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill $ 815.0     $ 815.0