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Pension and Other Postretirement Plans | 9 Months Ended
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Jul. 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 and nine months ended July 31, 2018 and July 31, 2017 were:
|  | U.S. |  |  | International |
Three Months Ended |  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
Service cost |  | $ | 3,438 |  |  | $ | 3,104 |  |  | $ | 510 |  |  | $ | 604 |
Interest cost |  |  | 3,580 |  |  |  | 3,180 |  |  |  | 408 |  |  |  | 401 |
Expected return on plan assets |  |  | (5,491 | ) |  |  | (5,143 | ) |  |  | (379 | ) |  |  | (334 | )
Amortization of prior service cost (credit) |  |  | (5 | ) |  |  | 12 |  |  |  | (80 | ) |  |  | (76 | )
Amortization of net actuarial loss |  |  | 2,353 |  |  |  | 2,366 |  |  |  | 527 |  |  |  | 664 |
Settlement loss |  |  | — |  |  |  | 648 |  |  |  | — |  |  |  | — |
Total benefit cost |  | $ | 3,875 |  |  | $ | 4,167 |  |  | $ | 986 |  |  | $ | 1,259 |
|  | U.S. |  |  | International |
Nine Months Ended |  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
Service cost |  | $ | 10,314 |  |  | $ | 9,346 |  |  | $ | 1,548 |  |  | $ | 1,763 |
Interest cost |  |  | 10,739 |  |  |  | 9,635 |  |  |  | 1,241 |  |  |  | 1,169 |
Expected return on plan assets |  |  | (16,472 | ) |  |  | (15,585 | ) |  |  | (1,152 | ) |  |  | (978 | )
Amortization of prior service cost (credit) |  |  | (17 | ) |  |  | 35 |  |  |  | (242 | ) |  |  | (223 | )
Amortization of net actuarial loss |  |  | 7,059 |  |  |  | 7,150 |  |  |  | 1,604 |  |  |  | 1,926 |
Settlement loss |  |  | — |  |  |  | 648 |  |  |  | — |  |  |  | — |
Total benefit cost |  | $ | 11,623 |  |  | $ | 11,229 |  |  | $ | 2,999 |  |  | $ | 3,657 |
The components of other postretirement benefit cost for the three and nine months ended July 31, 2018 and July 31, 2017 were:
|  | U.S. |  |  | International |
Three Months Ended |  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
Service cost |  | $ | 180 |  |  | $ | 188 |  |  | $ | 5 |  |  | $ | 5 |
Interest cost |  |  | 619 |  |  |  | 576 |  |  |  | 5 |  |  |  | 5 |
Amortization of prior service credit |  |  | (24 | ) |  |  | (41 | ) |  |  | — |  |  |  | — |
Amortization of net actuarial (gain) loss |  |  | 264 |  |  |  | 217 |  |  |  | (5 | ) |  |  | (4 | )
Total benefit cost |  | $ | 1,039 |  |  | $ | 940 |  |  | $ | 5 |  |  | $ | 6 |
|  | U.S. |  |  | International |
Nine Months Ended |  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
Service cost |  | $ | 553 |  |  | $ | 563 |  |  | $ | 15 |  |  | $ | 15 |
Interest cost |  |  | 1,897 |  |  |  | 1,728 |  |  |  | 15 |  |  |  | 15 |
Amortization of prior service credit |  |  | (74 | ) |  |  | (123 | ) |  |  | — |  |  |  | — |
Amortization of net actuarial (gain) loss |  |  | 809 |  |  |  | 651 |  |  |  | (15 | ) |  |  | (13 | )
Total benefit cost |  | $ | 3,185 |  |  | $ | 2,819 |  |  | $ | 15 |  |  | $ | 17 |

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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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