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Goodwill and Other Intangible Assets - Summary of Intangible Assets Subject to Amortization (Detail) - USD ($)
$ in Thousands
Jul. 31, 2017
Oct. 31, 2016
Finite Lived Intangible Assets [Line Items]    
Carrying Amount $ 737,042 $ 401,659
Accumulated Amortization 176,505 141,357
Net Book Value 560,537 260,302
Customer Relationships [Member]    
Finite Lived Intangible Assets [Line Items]    
Carrying Amount 480,164 207,493
Accumulated Amortization 93,229 71,608
Net Book Value 386,935 135,885
Patent/Technology Costs [Member]    
Finite Lived Intangible Assets [Line Items]    
Carrying Amount 150,716 97,640
Accumulated Amortization 45,886 37,873
Net Book Value 104,830 59,767
Trade Names [Member]    
Finite Lived Intangible Assets [Line Items]    
Carrying Amount 93,581 85,271
Accumulated Amortization 26,843 22,140
Net Book Value 66,738 63,131
Non-compete Agreements [Member]    
Finite Lived Intangible Assets [Line Items]    
Carrying Amount 11,191 9,855
Accumulated Amortization 9,160 8,347
Net Book Value 2,031 1,508
Other [Member]    
Finite Lived Intangible Assets [Line Items]    
Carrying Amount 1,390 1,400
Accumulated Amortization 1,387 1,389
Net Book Value $ 3 $ 11