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Comprehensive Income (Tables) | 6 Months Ended
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Feb. 28, 2023
Equity [Abstract] |
Schedule of Changes in Each Component of Accumulated Other Comprehensive Loss | The following table presents the changes in each component of accumulated other comprehensive loss net of tax during the periods presented (in millions):
| Foreign Currency Items |  | Defined Benefit Pension Plans |  | Accumulated Other Comprehensive Loss Items
Balance at August 31, 2022 | $ | (73.5) |  |  | $ | (52.3) |  |  | $ | (125.8) |
Other comprehensive loss before reclassifications | (2.6) |  |  | — |  |  | (2.6) |
Amounts reclassified from accumulated other comprehensive loss (1) | — |  |  | 2.1 |  |  | 2.1 |
Net current period other comprehensive (loss) income | (2.6) |  |  | 2.1 |  |  | (0.5) |
Balance at February 28, 2023 | $ | (76.1) |  |  | $ | (50.2) |  |  | $ | (126.3) |
| Foreign Currency Items |  | Defined Benefit Pension Plans |  | Accumulated Other Comprehensive Loss Items
Balance at August 31, 2021 | $ | (40.2) |  |  | $ | (58.0) |  |  | $ | (98.2) |
Other comprehensive loss before reclassifications | (7.1) |  |  | — |  |  | (7.1) |
Amounts reclassified from accumulated other comprehensive loss (1) | — |  |  | 2.4 |  |  | 2.4 |
Net current period other comprehensive (loss) income | (7.1) |  |  | 2.4 |  |  | (4.7) |
Balance at February 28, 2022 | $ | (47.3) |  |  | $ | (55.6) |  |  | $ | (102.9) |
_______________________________________ (1) The before tax amounts of the defined benefit pension plan items are included in net periodic pension cost. See the Pension and Defined Contribution Plans footnote for additional details.
Schedule of Tax Expense or Benefit Allocated to Each Component of Other Comprehensive Income (Loss) | The following table summarizes the tax expense or benefit allocated to each component of other comprehensive income (loss) for the periods presented (in millions):
| Three Months Ended
| February 28, 2023 |  | February 28, 2022
| Before Tax Amount |  | Tax (Expense) Benefit |  | Net of Tax Amount |  | Before Tax Amount |  | Tax (Expense) Benefit |  | Net of Tax Amount
Foreign currency translation adjustments | $ | (1.1) |  |  | $ | — |  |  | $ | (1.1) |  |  | $ | 4.8 |  |  | $ | — |  |  | $ | 4.8 |
Defined benefit pension plans: |  |  |  |  |  |  |  |  |  |  |
Amortization of defined benefit pension items: |  |  |  |  |  |  |  |  |  |  |
Prior service cost | 0.6 |  |  | (0.1) |  |  | 0.5 |  |  | 0.7 |  |  | (0.2) |  |  | 0.5 |
Actuarial losses | 0.7 |  |  | (0.2) |  |  | 0.5 |  |  | 0.9 |  |  | (0.2) |  |  | 0.7 |
Total defined benefit pension plans, net | 1.3 |  |  | (0.3) |  |  | 1.0 |  |  | 1.6 |  |  | (0.4) |  |  | 1.2 |
Other comprehensive (loss) income | $ | 0.2 |  |  | $ | (0.3) |  |  | $ | (0.1) |  |  | $ | 6.4 |  |  | $ | (0.4) |  |  | $ | 6.0 |
| Six Months Ended
| February 28, 2023 |  | February 28, 2022
| Before Tax Amount |  | Tax (Expense) Benefit |  | Net of Tax Amount |  | Before Tax Amount |  | Tax (Expense) Benefit |  | Net of Tax Amount
Foreign currency translation adjustments | $ | (2.6) |  |  | $ | — |  |  | $ | (2.6) |  |  | $ | (7.1) |  |  | $ | — |  |  | $ | (7.1) |
Defined benefit pension plans: |  |  |  |  |  |  |  |  |  |  |
Amortization of defined benefit pension items: |  |  |  |  |  |  |  |  |  |  |
Prior service cost | 1.3 |  |  | (0.3) |  |  | 1.0 |  |  | 1.4 |  |  | (0.4) |  |  | 1.0 |
Actuarial losses | 1.5 |  |  | (0.4) |  |  | 1.1 |  |  | 1.8 |  |  | (0.4) |  |  | 1.4 |
Total defined benefit pension plans, net | 2.8 |  |  | (0.7) |  |  | 2.1 |  |  | 3.2 |  |  | (0.8) |  |  | 2.4 |
Other comprehensive loss | $ | 0.2 |  |  | $ | (0.7) |  |  | $ | (0.5) |  |  | $ | (3.9) |  |  | $ | (0.8) |  |  | $ | (4.7) |

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- Definition Tabular disclosure of components of comprehensive income (loss). Includes, but is not limited to, foreign currency translation adjustments, foreign currency transactions designated as economic hedges of a net investment in foreign entity, gain (loss) and prior service cost (credit) for pension plans and other postretirement benefit plans. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=126968391&loc=d3e526-108580 + Details
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