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Pension and Other Postretirement Plans | 9 Months Ended
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Jul. 31, 2017
Compensation And Retirement Disclosure [Abstract] |
Pension and Other Postretirement Plans |
7. | Pension and other postretirement plans
The components of net periodic pension cost for the three and nine months ended July 31, 2017 and July 31, 2016 were:
|  | U.S. |  |  | International |
Three Months Ended |  | 2017 |  |  | 2016 |  |  | 2017 |  |  | 2016 |
Service cost |  | $ | 3,104 |  |  | $ | 2,873 |  |  | $ | 604 |  |  | $ | 723 |
Interest cost |  |  | 3,180 |  |  |  | 3,983 |  |  |  | 401 |  |  |  | 600 |
Expected return on plan assets |  |  | (5,143 | ) |  |  | (4,917 | ) |  |  | (334 | ) |  |  | (368 | )
Amortization of prior service cost (credit) |  |  | 12 |  |  |  | 19 |  |  |  | (76 | ) |  |  | (25 | )
Amortization of net actuarial loss |  |  | 2,366 |  |  |  | 2,120 |  |  |  | 664 |  |  |  | 468 |
Settlement loss |  |  | 648 |  |  |  | — |  |  |  | — |  |  |  | — |
Total benefit cost |  | $ | 4,167 |  |  | $ | 4,078 |  |  | $ | 1,259 |  |  | $ | 1,398 |
|  | U.S. |  |  | International |
Nine Months Ended |  | 2017 |  |  | 2016 |  |  | 2017 |  |  | 2016 |
Service cost |  | $ | 9,346 |  |  | $ | 8,618 |  |  | $ | 1,763 |  |  | $ | 2,143 |
Interest cost |  |  | 9,635 |  |  |  | 11,949 |  |  |  | 1,169 |  |  |  | 1,822 |
Expected return on plan assets |  |  | (15,585 | ) |  |  | (14,750 | ) |  |  | (978 | ) |  |  | (1,133 | )
Amortization of prior service cost (credit) |  |  | 35 |  |  |  | 57 |  |  |  | (223 | ) |  |  | (70 | )
Amortization of net actuarial loss |  |  | 7,150 |  |  |  | 6,360 |  |  |  | 1,926 |  |  |  | 1,404 |
Settlement loss |  |  | 648 |  |  |  | — |  |  |  | — |  |  |  | — |
Total benefit cost |  | $ | 11,229 |  |  | $ | 12,234 |  |  | $ | 3,657 |  |  | $ | 4,166 |
The components of other postretirement benefit cost for the three and nine months ended July 31, 2017 and July 31, 2016 were:
|  | U.S. |  |  | International |
Three Months Ended |  | 2017 |  |  | 2016 |  |  | 2017 |  |  | 2016 |
Service cost |  | $ | 188 |  |  | $ | 212 |  |  | $ | 5 |  |  | $ | 4 |
Interest cost |  |  | 576 |  |  |  | 731 |  |  |  | 5 |  |  |  | 5 |
Amortization of prior service cost (credit) |  |  | (41 | ) |  |  | (67 | ) |  |  | — |  |  |  | — |
Amortization of net actuarial (gain) loss |  |  | 217 |  |  |  | 171 |  |  |  | (4 | ) |  |  | (6 | )
Total benefit cost |  | $ | 940 |  |  | $ | 1,047 |  |  | $ | 6 |  |  | $ | 3 |
|  | U.S. |  |  | International |
Nine Months Ended |  | 2017 |  |  | 2016 |  |  | 2017 |  |  | 2016 |
Service cost |  | $ | 563 |  |  | $ | 637 |  |  | $ | 15 |  |  | $ | 12 |
Interest cost |  |  | 1,728 |  |  |  | 2,192 |  |  |  | 15 |  |  |  | 17 |
Amortization of prior service cost (credit) |  |  | (123 | ) |  |  | (201 | ) |  |  | — |  |  |  | — |
Amortization of net actuarial (gain) loss |  |  | 651 |  |  |  | 514 |  |  |  | (13 | ) |  |  | (18 | )
Total benefit cost |  | $ | 2,819 |  |  | $ | 3,142 |  |  | $ | 17 |  |  | $ | 11 |

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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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