Quarterly report pursuant to Section 13 or 15(d)

Business Acquisitions and Divestitures - Narrative (Details)

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Business Acquisitions and Divestitures - Narrative (Details)
$ / shares in Units, shares in Millions
 1 Months Ended 3 Months Ended 6 Months Ended
Nov. 21, 2019
USD ($)
$ / shares
shares
Dec. 31, 2019
USD ($)
Mar. 31, 2020
USD ($)
Mar. 31, 2020
USD ($)
Jan. 31, 2020
USD ($)
Business Acquisition [Line Items]          
Proceeds from divestiture of businesses   $ 13,100,000      
Milacron          
Business Acquisition [Line Items]          
Business acquisition and integration costs     $ 3,900,000 $ 57,700,000  
Percentage of voting interests acquired 100.00%        
Share price (in dollars per share) | $ / shares $ 11.80        
Exchange ratio of common stock issued (in shares) 0.1612        
Payments to acquire business, gross $ 1,643,000,000.0        
Business acquisition, common stock shares issued (in shares) | shares 11.4        
Repayment of Milacron debt, including accrued interest $ 772,900,000        
Identifiable intangible assets $ 865,000,000.0   815,000,000.0 815,000,000.0 $ (50,000,000.0)
Acquisition cost expensed     300,000 43,200,000  
Burnaby Machine & Mill Equipment Ltd.          
Business Acquisition [Line Items]          
Payments to acquire business, gross       26,200,000  
Discontinued Operations, Disposed of by Sale [Member] | Cimcool          
Business Acquisition [Line Items]          
Contingent consideration     $ 26,000,000.0 26,000,000.0  
Disposal Group, Including Discontinued Operation, Income Tax Expense (Benefit)       13,000,000.0  
Disposal Group, Including Discontinued Operation, Operating Expense       3,800,000  
Discontinued Operations, Disposed of by Sale [Member] | Cimcool | Level 2          
Business Acquisition [Line Items]          
Pre-tax loss       $ 3,000,000.0