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v3.22.2.2

Summary of Significant Accounting Policies - Amounts Reclassified out of Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Aug. 31, 2022 | Aug. 31, 2021 | Aug. 31, 2020
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] |  |  |
Interest and foreign exchange | $ 57.4 | $ 43.3 | $ 43.6
Total before tax | (60.6) | 8.6 | (124.8)
Tax expense | 18.1 | (40.2) | $ 40.2
Unrealized (Gain) Loss on Derivative Financial Instruments | Reclassification out of Accumulated Other Comprehensive loss |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] |  |  |
Total before tax | 6.1 | 6.7 |
Tax expense | (1.4) | (1.7) |
Net of tax | 4.7 | 5.0 |
Unrealized (Gain) Loss on Derivative Financial Instruments | Reclassification out of Accumulated Other Comprehensive loss | Foreign Exchange Contracts |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] |  |  |
Revenue and Cost of revenue | 1.2 | 1.4 |
Unrealized (Gain) Loss on Derivative Financial Instruments | Reclassification out of Accumulated Other Comprehensive loss | Interest rate swap contracts |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] |  |  |
Interest and foreign exchange | $ 4.9 | $ 5.3 |

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