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Pension and Defined Contribution Plans (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Aug. 31, 2019 | Aug. 31, 2018 | Aug. 31, 2017
Amounts recognized in the consolidated balance sheets consist of: |  |  |
Non-current assets | $ 0.0 | $ 1.6 |
Non-current liabilities | (99.7) | (64.6) |
Domestic Plans | Pension Plan |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Net periodic pension cost | 0.4 | 0.0 | $ 0.0
Change in Benefit Obligation: |  |  |
Benefit obligation at beginning of year | 203.2 | 215.5 |
Service cost | 2.9 | 2.7 | 3.5
Interest cost | 7.7 | 7.3 | 6.9
Amendments | 11.4 | 0.0 |
Actuarial losses (gains) | 26.2 | (14.3) |
Settlement gain | (3.4) | 0.0 |
Benefits paid | (8.8) | (8.0) |
Other | 0.0 | 0.0 |
Benefit obligation at end of year | 239.2 | 203.2 | 215.5
Change in plan assets: |  |  |
Fair value of plan assets at beginning of year | 149.4 | 136.8 |
Actual return on plan assets | 9.0 | 11.3 |
Employer contributions | 5.3 | 9.3 |
Benefits paid | (12.2) | (8.0) |
Other | 0.0 | 0.0 |
Fair value of plan assets at end of year | 151.5 | 149.4 | 136.8
Funded status at end of year: |  |  |
Funded status at the end of year | (87.7) | (53.8) |
Amounts recognized in the consolidated balance sheets consist of: |  |  |
Non-current assets | 0.0 | 1.6 |
Current liabilities | (1.8) | (5.3) |
Non-current liabilities | (85.9) | (50.1) |
Net amount recognized in consolidated balance sheets | (87.7) | (53.8) |
Accumulated benefit obligation | 239.2 | 202.7 |
Pre-tax amounts in accumulated other comprehensive loss: |  |  |
Prior service cost | (12.4) | (4.6) |
Net actuarial loss | (83.4) | (58.8) |
Amounts in accumulated other comprehensive loss | (95.8) | (63.4) |
Estimated amounts that will be amortized from accumulated comprehensive income over the next fiscal year: |  |  |
Prior service cost | 4.0 | 3.1 |
Net actuarial loss | 4.1 | 2.9 |
International Plans | Pension Plan |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Net periodic pension cost | 0.0 | 0.0 | 0.0
Change in Benefit Obligation: |  |  |
Benefit obligation at beginning of year | 45.5 | 53.5 |
Service cost | 0.2 | 0.2 | 0.2
Interest cost | 1.3 | 1.3 | 1.1
Amendments | 0.0 | 0.0 |
Actuarial losses (gains) | 3.2 | (4.5) |
Settlement gain | 0.0 | 0.0 |
Benefits paid | (2.6) | (5.5) |
Other | (3.0) | 0.5 |
Benefit obligation at end of year | 44.6 | 45.5 | 53.5
Change in plan assets: |  |  |
Fair value of plan assets at beginning of year | 30.9 | 34.1 |
Actual return on plan assets | 3.1 | 0.9 |
Employer contributions | 1.2 | 1.2 |
Benefits paid | (2.6) | (5.5) |
Other | (1.9) | 0.2 |
Fair value of plan assets at end of year | 30.7 | 30.9 | $ 34.1
Funded status at end of year: |  |  |
Funded status at the end of year | (13.9) | (14.6) |
Amounts recognized in the consolidated balance sheets consist of: |  |  |
Non-current assets | 0.0 | 0.0 |
Current liabilities | (0.1) | (0.1) |
Non-current liabilities | (13.8) | (14.5) |
Net amount recognized in consolidated balance sheets | (13.9) | (14.6) |
Accumulated benefit obligation | 44.6 | 45.5 |
Pre-tax amounts in accumulated other comprehensive loss: |  |  |
Prior service cost | 0.0 | 0.0 |
Net actuarial loss | (13.0) | (12.9) |
Amounts in accumulated other comprehensive loss | (13.0) | (12.9) |
Estimated amounts that will be amortized from accumulated comprehensive income over the next fiscal year: |  |  |
Prior service cost | 0.0 | 0.0 |
Net actuarial loss | 1.4 | 1.5 |
Pensions plans in which benefit obligation exceeds plan assets: | Domestic Plans | Pension Plan |  |  |
Change in Benefit Obligation: |  |  |
Benefit obligation at beginning of year | 119.2 |  |
Benefit obligation at end of year | 239.2 | 119.2 |
Change in plan assets: |  |  |
Fair value of plan assets at beginning of year | 63.8 |  |
Fair value of plan assets at end of year | 151.5 | 63.8 |
Amounts recognized in the consolidated balance sheets consist of: |  |  |
Accumulated benefit obligation | 239.2 | 118.7 |
Pensions plans in which benefit obligation exceeds plan assets: | International Plans | Pension Plan |  |  |
Change in Benefit Obligation: |  |  |
Benefit obligation at beginning of year | 45.5 |  |
Benefit obligation at end of year | 44.6 | 45.5 |
Change in plan assets: |  |  |
Fair value of plan assets at beginning of year | 30.9 |  |
Fair value of plan assets at end of year | 30.6 | 30.9 |
Amounts recognized in the consolidated balance sheets consist of: |  |  |
Accumulated benefit obligation | 44.6 | 45.5 |
Pensions plans in which plan assets exceed benefit obligation: | Domestic Plans | Pension Plan |  |  |
Change in Benefit Obligation: |  |  |
Benefit obligation at beginning of year | 84.0 |  |
Benefit obligation at end of year | 0.0 | 84.0 |
Change in plan assets: |  |  |
Fair value of plan assets at beginning of year | 85.6 |  |
Fair value of plan assets at end of year | 0.0 | 85.6 |
Amounts recognized in the consolidated balance sheets consist of: |  |  |
Accumulated benefit obligation | 0.0 | 84.0 |
Pensions plans in which plan assets exceed benefit obligation: | International Plans | Pension Plan |  |  |
Change in Benefit Obligation: |  |  |
Benefit obligation at beginning of year | 0.0 |  |
Benefit obligation at end of year | 0.0 | 0.0 |
Change in plan assets: |  |  |
Fair value of plan assets at beginning of year | 0.0 |  |
Fair value of plan assets at end of year | 0.0 | 0.0 |
Amounts recognized in the consolidated balance sheets consist of: |  |  |
Accumulated benefit obligation | $ 0.0 | $ 0.0 |

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- Definition Amount of payment to participant under defined benefit plan which decreases plan assets. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 60 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6414203&loc=d3e39716-114964 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(5) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) plan assets of defined benefit plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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- Definition Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e2709-114920 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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