Goodwill and other intangible assets - Summary of Changes in Carrying Amount of Goodwill (Detail) $ in Thousands	6 Months Ended
Apr. 30, 2024 USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 2,784,201
Acquisitions	(6,360)
Currency effect	5,068
Ending balance	2,782,909
Industrial Precision Solutions
Goodwill [Roll Forward]
Beginning balance	1,208,996
Acquisitions	(6,360)
Currency effect	3,577
Ending balance	1,206,213
Advanced Technology Solutions
Goodwill [Roll Forward]
Beginning balance	401,347
Acquisitions	0
Currency effect	740
Ending balance	402,087
Medical Fluid Systems
Goodwill [Roll Forward]
Beginning balance	1,173,858
Acquisitions	0
Currency effect	751
Ending balance	$ 1,174,609

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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