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Pension and other postretirement plans - Net Periodic Benefit Cost (Detail) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Jan. 31, 2024 | Jan. 31, 2023
Pension Plans | International |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Service cost | $ 237 | $ 275
Interest cost | 689 | 603
Expected return on plan assets | (417) | (377)
Amortization of prior service credit | (2) | (13)
Amortization of net actuarial (gain) loss | 9 | 20
Total benefit cost | 516 | 508
Pension Plans | United States |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Service cost | 2,507 | 2,744
Interest cost | 4,752 | 4,175
Expected return on plan assets | (6,652) | (6,529)
Amortization of prior service credit | 0 | 0
Amortization of net actuarial (gain) loss | 0 | 0
Total benefit cost | 607 | 390
Postretirement Benefit Costs | International |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Service cost | 1 | 1
Interest cost | 3 | 3
Amortization of net actuarial (gain) loss | (14) | (16)
Total benefit cost | (10) | (12)
Postretirement Benefit Costs | United States |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Service cost | 70 | 100
Interest cost | 754 | 765
Amortization of net actuarial (gain) loss | (147) | 0
Total benefit cost | $ 677 | $ 865

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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 -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480482/715-20-55-17 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 3A -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480535/715-20-45-3A Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 18 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480482/715-20-55-18 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (h)(5) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a)(5) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-6 + 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 -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480482/715-20-55-17 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 3A -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480535/715-20-45-3A Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 18 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480482/715-20-55-18 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (h)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-6 + Details
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