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v3.24.3

Significant Accounting Policies - Components of Other Comprehensive Income Loss (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Aug. 31, 2024 | Aug. 31, 2023 | Aug. 31, 2022
Defined benefit pension plans - Net of Tax Amount |  |  |
Other comprehensive income before reclassifications | $ (4.9) | $ 8.9 |
Other comprehensive (loss) income before tax | (1.1) | 14.5 | $ (26.0)
Other comprehensive (loss) income, tax | (1.2) | (1.3) | (1.6)
Other comprehensive (loss) income items, net of tax | (2.3) | 13.2 | (27.6)
Foreign Currency Items |  |  |
Foreign currency translation adjustments - Before Tax Amount |  |  |
Foreign currency translation adjustments | (5.9) | 8.5 | (33.3)
Foreign currency translation adjustments - Tax (Expense) or Benefit |  |  |
Foreign currency translation adjustments | 0.0 | 0.0 | 0.0
Foreign currency translation adjustments - Net of Tax Amount |  |  |
Foreign currency translation adjustments | (5.9) | 8.5 | (33.3)
Defined benefit pension plans - Net of Tax Amount |  |  |
Other comprehensive income before reclassifications | (5.9) | 8.5 |
Other comprehensive (loss) income items, net of tax | (5.9) | 8.5 |
Actuarial amounts |  |  |
Defined benefit pension plans - Before Tax Amounts |  |  |
Actuarial gains, before tax | 1.4 | 0.4 | 0.7
Defined benefit pension plans - Tax (Expense) or Benefit |  |  |
Actuarial amounts | (0.4) | 0.0 | 0.0
Defined benefit pension plans - Net of Tax Amount |  |  |
Actuarial gains, after tax | 1.0 | 0.4 | 0.7
Prior service cost |  |  |
Defined benefit pension plans - Before Tax Amounts |  |  |
Amortization of defined benefit pension items- Prior service cost | 0.1 | 2.6 | 2.9
Defined benefit pension plans - Tax (Expense) or Benefit |  |  |
Amortization of defined benefit pension items- Prior service cost | 0.0 | (0.6) | (0.7)
Defined benefit pension plans - Net of Tax Amount |  |  |
Amortization of defined benefit pension items- Prior service cost | 0.1 | 2.0 | 2.2
Actuarial losses |  |  |
Defined benefit pension plans - Before Tax Amounts |  |  |
Amortization of defined benefit pension items - Actuarial losses | 3.3 | 3.0 | 3.3
Defined benefit pension plans - Tax (Expense) or Benefit |  |  |
Amortization of defined benefit pension items- Actuarial losses | (0.8) | (0.7) | (0.8)
Defined benefit pension plans - Net of Tax Amount |  |  |
Amortization of defined benefit pension items- Actuarial losses | 2.5 | 2.3 | 2.5
Settlement losses |  |  |
Defined benefit pension plans - Before Tax Amounts |  |  |
Amortization of defined benefit pension items- Settlement losses | 0.0 | 0.0 | 0.4
Defined benefit pension plans - Tax (Expense) or Benefit |  |  |
Amortization of defined benefit pension items - Settlement losses | 0.0 | 0.0 | (0.1)
Defined benefit pension plans - Net of Tax Amount |  |  |
Amortization of defined benefit pension items- Settlement losses | 0.0 | 0.0 | 0.3
Defined Benefit Pension Plans |  |  |
Defined benefit pension plans - Before Tax Amounts |  |  |
Total defined benefit plans, net - before tax | 4.8 | 6.0 | 7.3
Defined benefit pension plans - Tax (Expense) or Benefit |  |  |
Total defined benefit plans, net - tax | (1.2) | (1.3) | (1.6)
Defined benefit pension plans - Net of Tax Amount |  |  |
Other comprehensive income before reclassifications | 1.0 | 0.4 |
Total defined benefit plans, net - net of tax | 3.6 | 4.7 | $ 5.7
Other comprehensive (loss) income items, net of tax | $ 3.6 | $ 4.7 |

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