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v3.23.1

Accumulated other comprehensive loss - Summary of Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Apr. 30, 2023 | Jan. 31, 2023 | Apr. 30, 2022 | Jan. 31, 2022 | Apr. 30, 2023 | Apr. 30, 2022
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |  |  |
Beginning balance | $ 2,446,685 | $ 2,294,375 | $ 2,218,628 | $ 2,159,130 | $ 2,294,375 | $ 2,159,130
Pension and other postretirement plan adjustments, net of tax of ($253) | (173) |  | 2,778 |  | (749) | 5,838
Foreign currency translation adjustments (a) | (290) | 76,821 | (46,901) | (13,358) | 76,531 | (60,259)
Ending balance | 2,497,002 | 2,446,685 | 2,190,616 | 2,218,628 | 2,497,002 | 2,190,616
Amortization of prior service costs and net actuarial losses, tax |  |  |  |  | 253 |
Other Comprehensive Income (Loss), Net Investment Hedge, Tax |  |  |  |  | 1,078 |
Other Comprehensive Income (Loss), Net Investment Hedge, Net of Tax |  |  |  |  | (3,611) |
Accumulated Other Comprehensive Income (Loss) |  |  |  |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |  |  |
Beginning balance | (131,537) | (207,782) | (186,133) | (175,835) | (207,782) | (175,835)
Foreign currency translation adjustments (a) | (290) | 76,821 | (46,901) | (13,358) |  |
Ending balance | (132,000) | (131,537) | $ (198,209) | $ (186,133) | (132,000) | $ (198,209)
Cumulative translation adjustments |  |  |  |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |  |  |
Beginning balance |  | (160,046) |  |  | (160,046) |
Pension and other postretirement plan adjustments, net of tax of ($253) |  |  |  |  | 0 |
Foreign currency translation adjustments (a) |  |  |  |  | 76,531 |
Ending balance | (83,515) |  |  |  | (83,515) |
Pension and postretirement benefit plan adjustments |  |  |  |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |  |  |
Beginning balance |  | $ (47,736) |  |  | (47,736) |
Pension and other postretirement plan adjustments, net of tax of ($253) |  |  |  |  | (749) |
Foreign currency translation adjustments (a) |  |  |  |  | 0 |
Ending balance | $ (48,485) |  |  |  | $ (48,485) |

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