Goodwill and Other Intangible Assets - Summary of Intangible Assets Subject to Amortization (Detail) - USD ($) $ in Thousands	Apr. 30, 2020	Oct. 31, 2019
Finite Lived Intangible Assets [Line Items]
Carrying Amount	$ 741,800	$ 744,337
Accumulated Amortization	324,923	298,762
Net Book Value	416,877	445,575
Customer Relationships [Member]
Finite Lived Intangible Assets [Line Items]
Carrying Amount	478,457	480,007
Accumulated Amortization	191,300	173,996
Net Book Value	287,157	306,011
Patent/Technology Costs [Member]
Finite Lived Intangible Assets [Line Items]
Carrying Amount	154,018	154,735
Accumulated Amortization	77,121	71,663
Net Book Value	76,897	83,072
Trade Names [Member]
Finite Lived Intangible Assets [Line Items]
Carrying Amount	96,437	96,655
Accumulated Amortization	44,495	41,303
Net Book Value	51,942	55,352
Non-compete Agreements [Member]
Finite Lived Intangible Assets [Line Items]
Carrying Amount	11,490	11,540
Accumulated Amortization	10,614	10,406
Net Book Value	876	1,134
Other [Member]
Finite Lived Intangible Assets [Line Items]
Carrying Amount	1,398	1,400
Accumulated Amortization	1,393	1,394
Net Book Value	$ 5	$ 6