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v3.23.2

Comprehensive Income - Tax Amounts Allocated to Components of Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
May 31, 2023 | May 31, 2022 | May 31, 2023 | May 31, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Other comprehensive (loss) income, before tax | $ 6.7 | $ (0.3) | $ 6.9 | $ (4.2)
Other comprehensive (loss) income, tax (expense) benefit | (0.4) | (0.3) | (1.1) | (1.1)
Other comprehensive income (loss) items, net of tax | 6.3 | (0.6) | 5.8 | (5.3)
Foreign currency translation adjustments |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Other comprehensive (loss) income, before tax | 5.2 | (1.8) | 2.6 | (8.9)
Other comprehensive (loss) income, tax (expense) benefit | 0.0 | 0.0 | 0.0 | 0.0
Other comprehensive income (loss) items, net of tax | 5.2 | (1.8) | 2.6 | (8.9)
Prior service cost |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Amortization of defined benefit pension items, before tax | 0.7 | 0.7 | 2.0 | 2.1
Amortization of defined benefit pension items, tax (expense) benefit | (0.2) | (0.1) | (0.5) | (0.5)
Amortization of defined benefit pension items, net of tax | 0.5 | 0.6 | 1.5 | 1.6
Actuarial losses |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Amortization of defined benefit pension items, before tax | 0.8 | 0.8 | 2.3 | 2.6
Amortization of defined benefit pension items, tax (expense) benefit | (0.2) | (0.2) | (0.6) | (0.6)
Amortization of defined benefit pension items, net of tax | 0.6 | 0.6 | 1.7 | 2.0
Total defined benefit pension plans, net |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Other comprehensive (loss) income, before tax | 1.5 | 1.5 | 4.3 | 4.7
Other comprehensive (loss) income, tax (expense) benefit | (0.4) | (0.3) | (1.1) | (1.1)
Other comprehensive income (loss) items, net of tax | $ 1.1 | $ 1.2 | $ 3.2 | $ 3.6

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