Goodwill and other intangible assets - Summary of Intangible Assets Subject to Amortization (Detail) - USD ($) $ in Thousands	Jan. 31, 2025	Oct. 31, 2024
Finite-Lived Intangible Assets [Line Items]
Carrying  Amount	$ 1,263,139	$ 1,286,588
Accumulated Amortization	558,643	545,742
Net Book  Value	704,496	740,846
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Carrying  Amount	860,096	878,071
Accumulated Amortization	347,178	339,756
Net Book  Value	512,918	538,315
Patent/technology costs
Finite-Lived Intangible Assets [Line Items]
Carrying  Amount	229,069	232,371
Accumulated Amortization	137,419	134,187
Net Book  Value	91,650	98,184
Trade name
Finite-Lived Intangible Assets [Line Items]
Carrying  Amount	165,183	167,144
Accumulated Amortization	65,306	62,887
Net Book  Value	99,877	104,257
Non-compete agreements
Finite-Lived Intangible Assets [Line Items]
Carrying  Amount	8,361	8,502
Accumulated Amortization	8,310	8,412
Net Book  Value	51	90
Other
Finite-Lived Intangible Assets [Line Items]
Carrying  Amount	430	500
Accumulated Amortization	430	500
Net Book  Value	$ 0	$ 0