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Pension and other postretirement plans - Net Periodic Benefit Cost (Detail) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Jan. 31, 2023 | Jan. 31, 2022
Pension Plans | International |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Service cost | $ 275 | $ 489
Interest cost | 603 | 298
Expected return on plan assets | (377) | (393)
Amortization of prior service cost (credit) | (13) | (18)
Amortization of net actuarial (gain) loss | 20 | 607
Total benefit cost | 508 | 983
Pension Plans | United States |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Service cost | 2,744 | 5,187
Interest cost | 4,175 | 3,583
Expected return on plan assets | (6,529) | (7,878)
Amortization of prior service cost (credit) | 0 | 12
Amortization of net actuarial (gain) loss | 0 | 2,766
Total benefit cost | 390 | 3,670
Postretirement Benefit Costs | International |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Service cost | 1 | 3
Interest cost | 3 | 3
Amortization of net actuarial (gain) loss | (16) | (12)
Total benefit cost | (12) | (6)
Postretirement Benefit Costs | United States |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Service cost | 100 | 195
Interest cost | 765 | 488
Amortization of net actuarial (gain) loss | 0 | 263
Total benefit cost | $ 865 | $ 946

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- Definition Amount of prior service cost (credit) recognized in net periodic benefit cost (credit) of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI https://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(5) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 45 -Paragraph 3A -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=123453770&loc=SL108413299-114919 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 18 -URI https://asc.fasb.org/extlink&oid=123450688&loc=d3e4587-114921 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a)(5) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e2709-114920 + Details
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- Definition Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI https://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 18 -URI https://asc.fasb.org/extlink&oid=123450688&loc=d3e4587-114921 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(3) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 45 -Paragraph 3A -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=123453770&loc=SL108413299-114919 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a)(3) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e2709-114920 + Details
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