Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets and Goodwill Intangible Assets (Details)

v3.20.2
Intangible Assets and Goodwill Intangible Assets (Details) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Jun. 30, 2020
Jun. 30, 2020
Sep. 30, 2019
Jan. 31, 2020
Nov. 21, 2019
Intangible Assets [Line Items]          
Intangible asset impairment   $ 10,200,000      
Finite-Lived Intangible Assets, Gross $ 1,186,400,000 1,186,400,000 $ 600,100,000    
Finite-Lived Intangible Assets, Accumulated Amortization (331,600,000) (331,600,000) (270,700,000)    
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months 71,600,000 71,600,000      
Intangible Assets, Gross (Excluding Goodwill) 1,425,200,000   725,600,000    
Finite-Lived Intangible Assets, Amortization Expense, Year Two 65,800,000 65,800,000      
Finite-Lived Intangible Assets, Amortization Expense, Year Three 64,800,000 64,800,000      
Finite-Lived Intangible Assets, Amortization Expense, Year Four 64,300,000 64,300,000      
Finite-Lived Intangible Assets, Amortization Expense, Year Five 64,200,000 64,200,000      
Trade names          
Intangible Assets [Line Items]          
Indefinite-lived Intangible Assets (Excluding Goodwill) 238,800,000 $ 238,800,000 125,500,000    
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]          
Intangible asset impairment   $ 8,600,000      
Finite-Lived Intangible Assets, Gross 200,000 200,000 200,000    
Finite-Lived Intangible Assets, Accumulated Amortization (200,000) (200,000) (200,000)    
Customer relationships          
Intangible Assets [Line Items]          
Finite-Lived Intangible Assets, Gross 948,300,000 948,300,000 464,200,000    
Finite-Lived Intangible Assets, Accumulated Amortization (206,000,000.0) (206,000,000.0) (169,200,000)    
Technology, including patents          
Intangible Assets [Line Items]          
Intangible asset impairment   1,600,000      
Finite-Lived Intangible Assets, Gross 157,000,000.0 157,000,000.0 76,800,000    
Finite-Lived Intangible Assets, Accumulated Amortization (59,100,000) (59,100,000) (49,400,000)    
Computer Software, Intangible Asset [Member]          
Intangible Assets [Line Items]          
Finite-Lived Intangible Assets, Gross 70,800,000 70,800,000 58,700,000    
Finite-Lived Intangible Assets, Accumulated Amortization (56,200,000) (56,200,000) (51,700,000)    
Backlog          
Intangible Assets [Line Items]          
Finite-Lived Intangible Assets, Gross 10,000,000.0 10,000,000.0 0    
Finite-Lived Intangible Assets, Accumulated Amortization (10,000,000.0) (10,000,000.0) 0    
Other Intangible Assets [Member]          
Intangible Assets [Line Items]          
Finite-Lived Intangible Assets, Gross 100,000 100,000 200,000    
Finite-Lived Intangible Assets, Accumulated Amortization (100,000) (100,000) $ (200,000)    
Milacron          
Intangible Assets [Line Items]          
Identifiable intangible assets 815,000,000.0 815,000,000.0   $ (50,000,000.0) $ 865,000,000.0
Discontinued Operations, Disposed of by Sale [Member] | Cimcool          
Intangible Assets [Line Items]          
Disposal Group, Including Discontinued Operation, Intangible Assets $ 122,100,000 $ 122,100,000