Restructuring and Other Charges - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Mar. 31, 2021	Mar. 31, 2021
Restructuring Cost and Reserve [Line Items]
Restructuring charges		$ 2.9
Other Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges		0.4
Access Equipment
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ (1.6)	3.2
Commercial
Restructuring Cost and Reserve [Line Items]
Restructuring charges		0.1
Access Equipment Restructuring Plan 1 | Access Equipment
Restructuring Cost and Reserve [Line Items]
Restructuring charges	(1.6)	3.2
Access Equipment Restructuring Plan 1 | Access Equipment | Restructuring Related Charges
Restructuring Cost and Reserve [Line Items]
Restructuring charges	3.8	7.0
Access Equipment Restructuring Plan 1 | Access Equipment | Accelerated Depreciation
Restructuring Cost and Reserve [Line Items]
Restructuring charges		2.8
Access Equipment Restructuring Plan 1 | Access Equipment | Inventory Obsolescence
Restructuring Cost and Reserve [Line Items]
Restructuring charges	3.4	3.8
Access Equipment Restructuring Plan 1 | Access Equipment | Other Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0.4	0.4
Commercial Restructuring Plan | Commercial
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 0.1	$ 0.1