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Pension and Defined Contribution Plans - Domestic and International Pension Plans (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Aug. 31, 2024 | Aug. 31, 2023 | Aug. 31, 2022
Amounts recognized in the consolidated balance sheets consist of: |  |  |
Non-current assets | $ 13.3 | $ 12.4 |
Non-current liabilities | $ (37.5) | $ (38.4) |
Pensions plans in which plan assets exceed benefit obligation: |  |  |
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Settlement Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Other Nonoperating Income (Expense) | Other Nonoperating Income (Expense) |
Pension Plan | Domestic Plans |  |  |
Change in benefit obligation: |  |  |
Benefit obligation at beginning of year | $ 159.8 | $ 176.0 |
Service cost | 3.6 | 3.8 | $ 4.4
Interest cost | 7.8 | 7.4 | 5.3
Actuarial losses (gains) | 3.7 | (16.2) |
Benefits paid | (11.1) | (11.2) |
Other | 0.0 | 0.0 |
Benefit obligation at end of year | 163.8 | 159.8 | 176.0
Change in plan assets: |  |  |
Fair value of plan assets at beginning of year | 132.7 | 141.5 |
Actual return (loss) on plan assets | 9.5 | (1.3) |
Employer contributions | 3.4 | 3.7 |
Benefits paid | (11.1) | (11.2) |
Other | 0.0 | 0.0 |
Fair value of plan assets at end of year | 134.5 | 132.7 | 141.5
Funded status at end of year: |  |  |
Funded status at the end of year | (29.3) | (27.1) |
Amounts recognized in the consolidated balance sheets consist of: |  |  |
Non-current assets | 8.4 | 10.1 |
Current liabilities | (4.2) | (3.4) |
Non-current liabilities | (33.5) | (33.8) |
Net amount recognized in consolidated balance sheets | (29.3) | (27.1) |
Accumulated benefit obligation | 162.5 | 158.9 |
Pre-tax amounts in accumulated other comprehensive loss: |  |  |
Prior service cost | (0.1) | (0.1) |
Net actuarial loss | (43.5) | (44.3) |
Amounts in accumulated other comprehensive loss | (43.6) | (44.4) |
Pension Plan | Domestic Plans | Pensions plans in which benefit obligation exceeds plan assets: |  |  |
Pensions plans in which benefit obligation exceeds plan assets: |  |  |
Projected benefit obligation | 37.7 | 37.2 |
Accumulated benefit obligation | 36.4 | 36.3 |
Plan assets | 0.0 | 0.0 |
Pension Plan | Domestic Plans | Pensions plans in which plan assets exceed benefit obligation: |  |  |
Pensions plans in which plan assets exceed benefit obligation: |  |  |
Projected benefit obligation | 126.1 | 122.6 |
Accumulated benefit obligation | 126.1 | 122.6 |
Plan assets | 134.5 | 132.7 |
Pension Plan | International Plans |  |  |
Change in benefit obligation: |  |  |
Benefit obligation at beginning of year | 34.6 | 31.5 |
Service cost | 0.9 | 0.8 | 0.4
Interest cost | 2.0 | 1.6 | 0.9
Actuarial losses (gains) | (0.1) | (1.2) |
Benefits paid | (1.9) | (1.9) |
Other | (1.5) | 3.8 |
Benefit obligation at end of year | 34.0 | 34.6 | 31.5
Change in plan assets: |  |  |
Fair value of plan assets at beginning of year | 32.1 | 28.5 |
Actual return (loss) on plan assets | 3.2 | (5.2) |
Employer contributions | 0.0 | 7.9 |
Benefits paid | (1.3) | (1.9) |
Other | 0.6 | 2.8 |
Fair value of plan assets at end of year | 34.6 | 32.1 | $ 28.5
Funded status at end of year: |  |  |
Funded status at the end of year | 0.6 | (2.5) |
Amounts recognized in the consolidated balance sheets consist of: |  |  |
Non-current assets | 4.9 | 2.3 |
Current liabilities | (0.3) | (0.2) |
Non-current liabilities | (4.0) | (4.6) |
Net amount recognized in consolidated balance sheets | 0.6 | (2.5) |
Accumulated benefit obligation | 31.8 | 31.9 |
Pre-tax amounts in accumulated other comprehensive loss: |  |  |
Prior service cost | 0.0 | (0.1) |
Net actuarial loss | (8.8) | (13.4) |
Amounts in accumulated other comprehensive loss | (8.8) | (13.5) |
Pension Plan | International Plans | Pensions plans in which benefit obligation exceeds plan assets: |  |  |
Pensions plans in which benefit obligation exceeds plan assets: |  |  |
Projected benefit obligation | 4.3 | 5.6 |
Accumulated benefit obligation | 2.9 | 3.5 |
Plan assets | 0.0 | 0.8 |
Pension Plan | International Plans | Pensions plans in which plan assets exceed benefit obligation: |  |  |
Pensions plans in which plan assets exceed benefit obligation: |  |  |
Projected benefit obligation | 29.7 | 29.0 |
Accumulated benefit obligation | 28.9 | 28.4 |
Plan assets | $ 34.6 | $ 31.3 |

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- Definition Amount of plan asset for defined benefit pension plan with projected benefit obligation in excess of plan assets. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480482/715-20-55-17 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-3 + Details
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