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Restructuring and Other Charges - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended 12 Months Ended
Jun. 30, 2020
Jun. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Restructuring Cost and Reserve [Line Items]        
Restructuring charges $ 10.2 $ 10.2    
Access Equipment        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges 7.6 7.6    
Commercial        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges $ 1.5 $ 1.5    
Access Equipment Restructuring Plan 1 | Access Equipment | Scenario Forecast        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges     $ 5.3 $ 10.0
Commercial Restructuring Plan | Commercial | Scenario Forecast        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges       $ 9.0