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Lease Commitments - Additional Information (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Aug. 31, 2025 | Aug. 31, 2024 | Aug. 31, 2023
Lessor and Lessee, Lease, Description [Line Items] |  |  |
Accumulated depreciation | $ 716.5 | $ 638.4 |
Depreciation expense | $ 78.3 | 72.4 | $ 71.5
Operating lease option to extend | options to extend up to 10 years |  |
Leasing & Management Services |  |  |
Lessor and Lessee, Lease, Description [Line Items] |  |  |
Operating lease rental revenues | $ 139.2 | $ 121.1 | $ 91.9
Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration] | Revenue from Contract with Customer, Excluding Assessed Tax | Revenue from Contract with Customer, Excluding Assessed Tax | Revenue from Contract with Customer, Excluding Assessed Tax
Car Hire Utilization Arrangements |  |  |
Lessor and Lessee, Lease, Description [Line Items] |  |  |
Operating lease rental revenues | $ 22.3 | $ 19.9 | $ 19.3
Minimum |  |  |
Lessor and Lessee, Lease, Description [Line Items] |  |  |
Sublease period | 1 year |  |
Opreating lease remaining lease term | 1 year |  |
Maximum |  |  |
Lessor and Lessee, Lease, Description [Line Items] |  |  |
Sublease period | 7 years |  |
Opreating lease remaining lease term | 73 years |  |
Equipment on Operating Lease |  |  |
Lessor and Lessee, Lease, Description [Line Items] |  |  |
Accumulated depreciation | $ 123.0 | 93.4 | 68.0
Depreciation expense | $ 36.4 | $ 36.0 | $ 26.0

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