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Employee Benefit Plans | 6 Months Ended
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Mar. 31, 2020
Defined Benefit Pension Plans And Defined Benefit Postretirement Plans Disclosure [Abstract] |
Employee Benefit Plans |
5. | Employee Benefit Plans
Components of net periodic pension benefit cost were as follows (in millions):
|  | Three Months Ended March 31, |  |  | Six Months Ended March 31, |
|  | 2020 |  |  | 2019 |  |  | 2020 |  |  | 2019 |
Components of net periodic benefit cost |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | 2.6 |  |  | $ | 2.4 |  |  | $ | 5.1 |  |  | $ | 4.8 |
Interest cost |  |  | 4.3 |  |  |  | 4.7 |  |  |  | 8.6 |  |  |  | 9.4 |
Expected return on plan assets |  |  | (5.2 | ) |  |  | (5.0 | ) |  |  | (10.3 | ) |  |  | (10.0 | )
Amortization of prior service cost (benefit) |  |  | 0.4 |  |  |  | 0.5 |  |  |  | 0.8 |  |  |  | 0.9 |
Curtailment |  |  | — |  |  |  | 1.2 |  |  |  | — |  |  |  | 1.2 |
Amortization of net actuarial loss (gain) |  |  | 0.8 |  |  |  | 0.1 |  |  |  | 1.6 |  |  |  | 0.1 |
Expenses paid |  |  | 1.0 |  |  |  | 0.6 |  |  |  | 2.0 |  |  |  | 1.2 |
Net periodic benefit cost |  | $ | 3.9 |  |  | $ | 4.5 |  |  | $ | 7.8 |  |  | $ | 7.6 |
Components of net periodic other post-employment benefit cost were as follows (in millions):
|  | Three Months Ended March 31, |  |  | Six Months Ended March 31, |
|  | 2020 |  |  | 2019 |  |  | 2020 |  |  | 2019 |
Components of net periodic benefit cost |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | 0.8 |  |  | $ | 0.7 |  |  | $ | 1.7 |  |  | $ | 1.5 |
Interest cost |  |  | 0.4 |  |  |  | 0.5 |  |  |  | 0.8 |  |  |  | 1.0 |
Amortization of prior service cost (benefit) |  |  | (0.3 | ) |  |  | (0.3 | ) |  |  | (0.5 | ) |  |  | (0.7 | )
Amortization of net actuarial loss (gain) |  |  | — |  |  |  | — |  |  |  | (0.1 | ) |  |  | (0.1 | )
Net periodic benefit cost |  | $ | 0.9 |  |  | $ | 0.9 |  |  | $ | 1.9 |  |  | $ | 1.7 |
Components of net periodic benefit cost other than “Service cost” and “Expenses paid” are included in “Miscellaneous, net” in the Condensed Consolidated Statements of Income. Administrative expense for the three and six months ended March 31, 2019, which was previously included in “Service cost”, is now reported in “Expenses paid” to improve the comparability between the periods.

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- References No definition available. + Details
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- Definition The entire disclosure for pension and other postretirement benefits. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -URI http://asc.fasb.org/topic&trid=2235017 + Details
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