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Pension Plans (Tables) | 6 Months Ended
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Feb. 28, 2021
Retirement Benefits [Abstract] |
Schedule of Net Periodic Pension Cost | Net periodic pension cost included the following components before tax for the periods presented (in millions):
| Three Months Ended |  | Six Months Ended
| February 28, 2021 |  | February 29, 2020 |  | February 28, 2021 |  | February 29, 2020
Service cost | $ | 1.3 |  |  | $ | 1.1 |  |  | $ | 2.5 |  |  | $ | 2.3 |
Interest cost | 1.5 |  |  | 1.9 |  |  | 3.1 |  |  | 3.7 |
Expected return on plan assets | (3.3) |  |  | (3.1) |  |  | (6.6) |  |  | (6.2) |
Amortization of prior service cost | 0.7 |  |  | 1.0 |  |  | 1.4 |  |  | 2.0 |
Recognized actuarial loss | 1.3 |  |  | 1.4 |  |  | 2.7 |  |  | 2.8 |
Net periodic pension cost | $ | 1.5 |  |  | $ | 2.3 |  |  | $ | 3.1 |  |  | $ | 4.6 |

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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + 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 (h) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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