Goodwill and Other Intangible Assets - Summary of Intangible Assets Subject to Amortization (Detail) - USD ($) $ in Thousands	Apr. 30, 2018	Oct. 31, 2017
Finite Lived Intangible Assets [Line Items]
Carrying Amount	$ 751,216	$ 736,924
Accumulated Amortization	219,738	189,744
Net Book Value	531,478	547,180
Customer Relationships [Member]
Finite Lived Intangible Assets [Line Items]
Carrying Amount	485,317	480,536
Accumulated Amortization	121,602	102,033
Net Book Value	363,715	378,503
Patent/Technology Costs [Member]
Finite Lived Intangible Assets [Line Items]
Carrying Amount	155,854	150,581
Accumulated Amortization	55,215	48,669
Net Book Value	100,639	101,912
Trade Names [Member]
Finite Lived Intangible Assets [Line Items]
Carrying Amount	96,994	93,281
Accumulated Amortization	31,758	28,366
Net Book Value	65,236	64,915
Non-compete Agreements [Member]
Finite Lived Intangible Assets [Line Items]
Carrying Amount	11,659	11,142
Accumulated Amortization	9,774	9,298
Net Book Value	1,885	1,844
Other [Member]
Finite Lived Intangible Assets [Line Items]
Carrying Amount	1,392	1,384
Accumulated Amortization	1,389	1,378
Net Book Value	$ 3	$ 6