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Leases - Right of Use Asset Balance for Operating Leases Disaggregated by Segment and Type of Lease (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021 | Sep. 30, 2021
--- | --- | --- | ---
Lessee Lease Description [Line Items] |  |  |
Right of use asset balance | $ 209.2 | $ 204.5 | $ 194.7
Operating Segments | Access Equipment |  |  |
Lessee Lease Description [Line Items] |  |  |
Right of use asset balance | 80.8 | 96.9 | 89.8
Operating Segments | Defense |  |  |
Lessee Lease Description [Line Items] |  |  |
Right of use asset balance | 46.8 | 54.4 | 57.6
Operating Segments | Fire & Emergency |  |  |
Lessee Lease Description [Line Items] |  |  |
Right of use asset balance | 11.1 | 13.7 | 7.9
Operating Segments | Commercial |  |  |
Lessee Lease Description [Line Items] |  |  |
Right of use asset balance | 54.4 | 19.1 | 18.4
Corporate and Intersegment Eliminations |  |  |
Lessee Lease Description [Line Items] |  |  |
Right of use asset balance | 16.1 | 20.4 | 21.0
Real Estate Leases |  |  |
Lessee Lease Description [Line Items] |  |  |
Right of use asset balance | 195.4 | 185.7 | 174.2
Real Estate Leases | Operating Segments | Access Equipment |  |  |
Lessee Lease Description [Line Items] |  |  |
Right of use asset balance | 77.2 | 92.4 | 84.3
Real Estate Leases | Operating Segments | Defense |  |  |
Lessee Lease Description [Line Items] |  |  |
Right of use asset balance | 45.7 | 52.6 | 55.6
Real Estate Leases | Operating Segments | Fire & Emergency |  |  |
Lessee Lease Description [Line Items] |  |  |
Right of use asset balance | 10.0 | 12.2 | 6.2
Real Estate Leases | Operating Segments | Commercial |  |  |
Lessee Lease Description [Line Items] |  |  |
Right of use asset balance | 52.9 | 16.9 | 15.9
Real Estate Leases | Corporate and Intersegment Eliminations |  |  |
Lessee Lease Description [Line Items] |  |  |
Right of use asset balance | 9.6 | 11.6 | 12.2
Equipment Leases |  |  |
Lessee Lease Description [Line Items] |  |  |
Right of use asset balance | 13.8 | 18.8 | 20.5
Equipment Leases | Operating Segments | Access Equipment |  |  |
Lessee Lease Description [Line Items] |  |  |
Right of use asset balance | 3.6 | 4.5 | 5.5
Equipment Leases | Operating Segments | Defense |  |  |
Lessee Lease Description [Line Items] |  |  |
Right of use asset balance | 1.1 | 1.8 | 2.0
Equipment Leases | Operating Segments | Fire & Emergency |  |  |
Lessee Lease Description [Line Items] |  |  |
Right of use asset balance | 1.1 | 1.5 | 1.7
Equipment Leases | Operating Segments | Commercial |  |  |
Lessee Lease Description [Line Items] |  |  |
Right of use asset balance | 1.5 | 2.2 | 2.5
Equipment Leases | Corporate and Intersegment Eliminations |  |  |
Lessee Lease Description [Line Items] |  |  |
Right of use asset balance | $ 6.5 | $ 8.8 | $ 8.8

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount of lessee's right to use underlying asset under operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977 + Details
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