Goodwill and other intangible assets - Summary of Intangible Assets Subject to Amortization (Detail) - USD ($) $ in Thousands	Jul. 31, 2024	Oct. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Carrying  Amount	$ 1,154,232	$ 1,135,513
Accumulated Amortization	525,468	462,769
Net Book  Value	628,764	672,744
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Carrying  Amount	811,392	794,706
Accumulated Amortization	327,906	287,585
Net Book  Value	483,486	507,121
Patent/technology costs
Finite-Lived Intangible Assets [Line Items]
Carrying  Amount	207,113	204,905
Accumulated Amortization	128,990	112,994
Net Book  Value	78,123	91,911
Trade name
Finite-Lived Intangible Assets [Line Items]
Carrying  Amount	126,820	125,692
Accumulated Amortization	59,861	52,488
Net Book  Value	66,959	73,204
Non-compete agreements
Finite-Lived Intangible Assets [Line Items]
Carrying  Amount	8,486	10,028
Accumulated Amortization	8,290	9,521
Net Book  Value	196	507
Other
Finite-Lived Intangible Assets [Line Items]
Carrying  Amount	421	182
Accumulated Amortization	421	181
Net Book  Value	$ 0	$ 1