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Goodwill and Purchased Intangible Assets - Goodwill Allocated to Reportable Segments (Details) - USD ($) $ in Millions | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Goodwill [Line Items] |  |
Gross | $ 2,144.7 | $ 2,150.7
Accumulated Impairment | (1,101.7) | (1,101.7)
Net | 1,043.0 | 1,049.0
Access Equipment |  |
Goodwill [Line Items] |  |
Gross | 1,794.8 | 1,809.7
Accumulated Impairment | (932.1) | (932.1)
Net | 862.7 | 877.6
Defense |  |
Goodwill [Line Items] |  |
Gross | 44.4 | 44.4
Net | 44.4 | 44.4
Fire & Emergency |  |
Goodwill [Line Items] |  |
Gross | 117.0 | 108.1
Accumulated Impairment | (2.0) | (2.0)
Net | 115.0 | 106.1
Commercial |  |
Goodwill [Line Items] |  |
Gross | 188.5 | 188.5
Accumulated Impairment | (167.6) | (167.6)
Net | $ 20.9 | $ 20.9

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(10)(1)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=120320667&loc=SL49117168-202975 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 852 -SubTopic 10 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266 + Details
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