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Pension and Other Postretirement Plans | 3 Months Ended
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Jan. 31, 2018
Compensation And Retirement Disclosure [Abstract] |
Pension and Other Postretirement Plans |
6. | Pension and other postretirement plans
The components of net periodic pension cost for the three months ended January 31, 2018 and January 31, 2017 were:
|  | U.S. |  |  | International |
Three Months Ended |  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
Service cost |  | $ | 3,821 |  |  | $ | 3,058 |  |  | $ | 510 |  |  | $ | 534 |
Interest cost |  |  | 3,500 |  |  |  | 3,211 |  |  |  | 410 |  |  |  | 348 |
Expected return on plan assets |  |  | (5,491 | ) |  |  | (5,177 | ) |  |  | (380 | ) |  |  | (285 | )
Amortization of prior service cost (credit) |  |  | (8 | ) |  |  | 12 |  |  |  | (80 | ) |  |  | (70 | )
Amortization of net actuarial loss |  |  | 2,156 |  |  |  | 2,327 |  |  |  | 529 |  |  |  | 599 |
Total benefit cost |  | $ | 3,978 |  |  | $ | 3,431 |  |  | $ | 989 |  |  | $ | 1,126 |
The components of other postretirement benefit cost for the three months ended January 31, 2018 and January 31, 2017 were:
|  | U.S. |  |  | International |
Three Months Ended |  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
Service cost |  | $ | 221 |  |  | $ | 221 |  |  | $ | 5 |  |  | $ | 5 |
Interest cost |  |  | 628 |  |  |  | 587 |  |  |  | 5 |  |  |  | 5 |
Amortization of prior service cost (credit) |  |  | (25 | ) |  |  | (41 | ) |  |  | — |  |  |  | — |
Amortization of net actuarial (gain) loss |  |  | 249 |  |  |  | 229 |  |  |  | (5 | ) |  |  | (4 | )
Total benefit cost |  | $ | 1,073 |  |  | $ | 996 |  |  | $ | 5 |  |  | $ | 6 |

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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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -URI http://asc.fasb.org/topic&trid=2235017 + Details
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