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Restructuring and Other Charges - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Sep. 30, 2020	Sep. 30, 2018
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 13.0	$ 10.2	$ 14.4
Access Equipment
Restructuring Cost and Reserve [Line Items]
Restructuring charges			10.4	$ 4.7
Commercial
Restructuring Cost and Reserve [Line Items]
Restructuring charges			1.5	$ 5.4
Access Equipment Restructuring Plan 1 | Access Equipment
Restructuring Cost and Reserve [Line Items]
Restructuring charges			10.4
Access Equipment Restructuring Plan 1 | Access Equipment | Restructuring Actions
Restructuring Cost and Reserve [Line Items]
Restructuring charges			4.7
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			1.6
Access Equipment Restructuring Plan 1 | Access Equipment | Other Operational Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges			0.3
Commercial Restructuring Plan | Commercial
Restructuring Cost and Reserve [Line Items]
Restructuring charges			1.5
Commercial Restructuring Plan | Commercial | Accelerated Depreciation
Restructuring Cost and Reserve [Line Items]
Restructuring charges			$ 4.1

X

- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 5.P.3)
-URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140864-122747

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 5.P.4(b))
-URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747

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+ References

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