Goodwill and other intangible assets - Summary of Intangible Assets Subject to Amortization (Detail) - USD ($) $ in Thousands	Apr. 30, 2023	Oct. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Carrying  Amount	$ 803,235	$ 731,065
Accumulated Amortization	438,831	401,663
Net Book  Value	364,404	329,402
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Carrying  Amount	517,081	480,058
Accumulated Amortization	273,771	250,798
Net Book  Value	243,310	229,260
Patent/technology costs
Finite-Lived Intangible Assets [Line Items]
Carrying  Amount	176,103	157,549
Accumulated Amortization	106,124	96,426
Net Book  Value	69,979	61,123
Trade name
Finite-Lived Intangible Assets [Line Items]
Carrying  Amount	99,351	82,759
Accumulated Amortization	48,975	44,707
Net Book  Value	50,376	38,052
Non-compete agreements
Finite-Lived Intangible Assets [Line Items]
Carrying  Amount	10,559	10,253
Accumulated Amortization	9,822	9,290
Net Book  Value	737	963
Other
Finite-Lived Intangible Assets [Line Items]
Carrying  Amount	141	446
Accumulated Amortization	139	442
Net Book  Value	$ 2	$ 4