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Other Operating Expense - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Jun. 30, 2021
Dec. 31, 2020
Other Operating Expense [Line Items]            
Restructuring charge $ 0.8 $ 15.8 $ 18.3      
Anticipated future cash payments 10.3   10.3   $ 12.5 $ 14.2
Other operating expense $ 0.8 15.8 $ 16.0 $ 43.6    
Asset impairment   $ 9.4        
Terminated Merger | Woodward, Inc            
Other Operating Expense [Line Items]            
Other operating expense       $ (43.6)