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Business Segment Information - Schedule of Income (Loss) from Continuing Operations by Product Lines and Reportable Segments (Parenthetical) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Segment Reporting Information [Line Items] |  |  |  |
Restructuring charges | $ 0.2 | $ 10.2 | $ 3.1 | $ 10.2
Access Equipment |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Restructuring charges | 0.2 | $ 7.6 | 3.4 | $ 7.6
Other costs related to restructuring plans | $ 1.1 |  | $ 8.1 |

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