Goodwill and other intangible assets - Summary of Intangible Assets Subject to Amortization (Detail) - USD ($) $ in Thousands	Jul. 31, 2023	Oct. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Carrying  Amount	$ 803,658	$ 731,065
Accumulated Amortization	453,134	401,663
Net Book  Value	350,524	329,402
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Carrying  Amount	517,147	480,058
Accumulated Amortization	282,598	250,798
Net Book  Value	234,549	229,260
Patent/technology costs
Finite-Lived Intangible Assets [Line Items]
Carrying  Amount	176,396	157,549
Accumulated Amortization	109,783	96,426
Net Book  Value	66,613	61,123
Trade name
Finite-Lived Intangible Assets [Line Items]
Carrying  Amount	99,413	82,759
Accumulated Amortization	50,673	44,707
Net Book  Value	48,740	38,052
Non-compete agreements
Finite-Lived Intangible Assets [Line Items]
Carrying  Amount	10,559	10,253
Accumulated Amortization	9,937	9,290
Net Book  Value	622	963
Other
Finite-Lived Intangible Assets [Line Items]
Carrying  Amount	143	446
Accumulated Amortization	143	442
Net Book  Value	$ 0	$ 4