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Lease Commitments - Additional Information (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Aug. 31, 2022 | Aug. 31, 2021 | Aug. 31, 2020
Lessor and Lessee, Lease, Description [Line Items] |  |  |
Accumulated depreciation | $ 596.7 | $ 556.1 |
Depreciation expense | $ 70.7 | 75.3 | $ 86.6
Finance lease option to extend | options to extend up to 15 years |  |
Leasing & Management Services |  |  |
Lessor and Lessee, Lease, Description [Line Items] |  |  |
Operating lease rental revenues | $ 66.8 | $ 69.4 | $ 38.7
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 | $ 18.1 | $ 17.1 | $ 11.2
Minimum |  |  |
Lessor and Lessee, Lease, Description [Line Items] |  |  |
Sublease period | 1 year |  |
Financing lease remaining lease term | 1 year |  |
Maximum |  |  |
Lessor and Lessee, Lease, Description [Line Items] |  |  |
Sublease period | 14 years |  |
Financing lease remaining lease term | 76 years |  |
Equipment on Operating Lease |  |  |
Lessor and Lessee, Lease, Description [Line Items] |  |  |
Accumulated depreciation | $ 48.6 | 34.4 | 33.4
Depreciation expense | $ 22.0 | $ 13.8 | $ 11.6

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- Definition Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(14)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Description of terms and conditions of option to extend lessee's operating lease. Includes, but is not limited to, information about option recognized as part of right-of-use asset and lease liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918673-209980 + Details
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