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Goodwill and Other Intangible Assets - Summary of Intangible Assets Subject to Amortization (Detail) - USD ($)
$ in Thousands
Apr. 30, 2016
Oct. 31, 2015
Finite Lived Intangible Assets [Line Items]    
Carrying Amount $ 394,772 $ 392,684
Accumulated Amortization 130,071 115,258
Net Book Value 264,701 277,426
Customer Relationships [Member]    
Finite Lived Intangible Assets [Line Items]    
Carrying Amount 202,918 201,282
Accumulated Amortization 64,872 56,315
Net Book Value 138,046 144,967
Patent/Technology Costs [Member]    
Finite Lived Intangible Assets [Line Items]    
Carrying Amount 98,172 98,063
Accumulated Amortization 35,992 32,764
Net Book Value 62,180 65,299
Trade Names [Member]    
Finite Lived Intangible Assets [Line Items]    
Carrying Amount 83,225 83,022
Accumulated Amortization 19,665 17,003
Net Book Value 63,560 66,019
Non-compete Agreements [Member]    
Finite Lived Intangible Assets [Line Items]    
Carrying Amount 9,068 8,952
Accumulated Amortization 8,158 7,819
Net Book Value 910 1,133
Other [Member]    
Finite Lived Intangible Assets [Line Items]    
Carrying Amount 1,389 1,365
Accumulated Amortization 1,384 1,357
Net Book Value $ 5 $ 8