Goodwill and Other Intangible Assets - Summary of Intangible Assets Subject to Amortization (Detail) - USD ($) $ in Thousands	Apr. 30, 2017	Oct. 31, 2016
Finite Lived Intangible Assets [Line Items]
Carrying Amount	$ 727,976	$ 401,659
Accumulated Amortization	159,837	141,357
Net Book Value	568,139	260,302
Customer Relationships [Member]
Finite Lived Intangible Assets [Line Items]
Carrying Amount	485,216	207,493
Accumulated Amortization	82,444	71,608
Net Book Value	402,772	135,885
Patent/Technology Costs [Member]
Finite Lived Intangible Assets [Line Items]
Carrying Amount	137,648	97,640
Accumulated Amortization	42,248	37,873
Net Book Value	95,400	59,767
Trade Names [Member]
Finite Lived Intangible Assets [Line Items]
Carrying Amount	92,783	85,271
Accumulated Amortization	25,041	22,140
Net Book Value	67,742	63,131
Non-compete Agreements [Member]
Finite Lived Intangible Assets [Line Items]
Carrying Amount	10,942	9,855
Accumulated Amortization	8,721	8,347
Net Book Value	2,221	1,508
Other [Member]
Finite Lived Intangible Assets [Line Items]
Carrying Amount	1,387	1,400
Accumulated Amortization	1,383	1,389
Net Book Value	$ 4	$ 11