Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets and Goodwill - Schedule of Impairment Charges (Details)

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Intangible Assets and Goodwill - Schedule of Impairment Charges (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Mar. 31, 2021
Mar. 31, 2020
Finite-Lived Intangible Assets [Line Items]        
Goodwill impairment   $ 72.3   $ 72.3
Goodwill and Intangible Asset Impairment $ 0.0 82.5 $ 0.0 82.5
Advanced Process Solutions        
Finite-Lived Intangible Assets [Line Items]        
Goodwill impairment   72.3   72.3
Goodwill and Intangible Asset Impairment   73.0   73.0
Molding Technology Solutions        
Finite-Lived Intangible Assets [Line Items]        
Goodwill impairment   0.0   0.0
Goodwill and Intangible Asset Impairment   9.5   9.5
Trade names        
Finite-Lived Intangible Assets [Line Items]        
Intangible asset impairment   8.6   8.6
Trade names | Advanced Process Solutions        
Finite-Lived Intangible Assets [Line Items]        
Intangible asset impairment   0.7   0.7
Trade names | Molding Technology Solutions        
Finite-Lived Intangible Assets [Line Items]        
Intangible asset impairment   7.9   7.9
Technology, including patents        
Finite-Lived Intangible Assets [Line Items]        
Intangible asset impairment   1.6   1.6
Technology, including patents | Advanced Process Solutions        
Finite-Lived Intangible Assets [Line Items]        
Intangible asset impairment   0.0   0.0
Technology, including patents | Molding Technology Solutions        
Finite-Lived Intangible Assets [Line Items]        
Intangible asset impairment   $ 1.6   $ 1.6