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Goodwill and Purchased Intangible Assets - Additional Information (Details) |  | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Oct. 01, 2022 USD ($) | Dec. 31, 2022 USD ($) | Sep. 30, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2023 USD ($) ReportingUnit | Dec. 31, 2022 USD ($) | Sep. 30, 2021 USD ($) | Oct. 01, 2023
Acquired Finite Lived Intangible Assets [Line Items] |  |  |  |  |  |  |  |
Minimum weighted-average cost of capital (as a percent) | 11.50% |  |  |  |  |  |  | 12.00%
Maximum weighted-average cost of capital (as a percent) | 13.00% |  |  |  |  |  |  | 14.50%
Terminal growth rate (as a percent) | 3.00% |  |  |  |  |  |  | 3.00%
Goodwill |  | $ 1,042,000,000 |  | $ 1,049,000,000 | $ 1,416,400,000 | $ 1,042,000,000 |  |
Goodwill impairment charge | $ 0 |  | $ 2,100,000 |  |  | $ 2,100,000 |  |
Impairment Of Intangible Asset Indefinite Lived Excluding Goodwill Statement Of Income Or Comprehensive Income Extensible Enumeration Not Disclosed Flag | false |  |  |  |  |  |  |
Weighted- Average Life (in years) |  |  |  |  | 12 years 6 months | 14 years 2 months 12 days |  |
Net |  | 69,600,000 |  |  | $ 443,500,000 | $ 69,600,000 |  |
Amortization of purchased intangible assets |  |  |  | 2,800,000 | 41,700,000 | 11,600,000 | $ 9,600,000 |
2024 |  |  |  |  | 62,700,000 |  |  |
2025 |  |  |  |  | 54,200,000 |  |  |
2026 |  |  |  |  | 51,400,000 |  |  |
2027 |  |  |  |  | 51,400,000 |  |  |
2028 |  |  |  |  | $ 48,900,000 |  |  |
Number of reporting units | ReportingUnit |  |  |  |  | 1 |  |  |
Defense |  |  |  |  |  |  |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |  |  |  |  |  |  |
Reporting unit, percentage of fair value in excess of carrying amount |  |  |  |  |  |  |  | 10.00%
Goodwill |  | 44,400,000 |  | $ 44,400,000 | $ 44,400,000 | 44,400,000 |  |
Impairment of indefinite-lived intangible assets |  | 5,600,000 |  |  |  | $ 5,600,000 |  |
Cost of Sales |  |  |  |  |  |  |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |  |  |  |  |  |  |
Amortization of purchased intangible assets |  |  |  |  | $ 8,900,000 |  |  |
Distribution network |  |  |  |  |  |  |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |  |  |  |  |  |  |
Weighted- Average Life (in years) |  |  |  |  | 39 years 2 months 12 days | 39 years 2 months 12 days |  |
Net |  | $ 18,300,000 |  |  | $ 16,900,000 | $ 18,300,000 |  |
JLG Industries Inc And Its Wholly Owned Subsidiaries |  |  |  |  |  |  |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |  |  |  |  |  |  |
Percentage of recorded goodwill and indefinite-lived intangible assets concentrated within the JLG reporting unit in the access segment (as a percent) |  |  |  |  | 75.00% |  |  |
Pierce | Distribution network |  |  |  |  |  |  |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |  |  |  |  |  |  |
Weighted- Average Life (in years) |  |  |  |  | 40 years |  |  |
Net |  |  |  |  | $ 16,900,000 |  |  |

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