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Acquisitions - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Oct. 17, 2018
Jan. 02, 2018
Mar. 31, 2017
Feb. 16, 2017
Feb. 01, 2017
Jan. 03, 2017
Oct. 31, 2019
Oct. 31, 2018
Oct. 31, 2017
Business Acquisition [Line Items]                  
Acquisition of businesses, net of cash acquired             $ 12,486 $ 50,586 $ 805,943
Goodwill             1,614,739 1,608,018 1,589,210
Advanced Technology Systems [Member]                  
Business Acquisition [Line Items]                  
Goodwill             $ 1,203,278 $ 1,194,969 $ 1,172,857
2017 Acquisition [Member]                  
Business Acquisition [Line Items]                  
Goodwill     $ 434,123            
Customer Relationships [Member]                  
Business Acquisition [Line Items]                  
Intangible assets amortization period             14 years    
Trade Names [Member]                  
Business Acquisition [Line Items]                  
Intangible assets amortization period             15 years    
Non-compete Agreements [Member]                  
Business Acquisition [Line Items]                  
Intangible assets amortization period             3 years    
Cladach Nua Teoranta [Member] | 2018 Acquisition [Member]                  
Business Acquisition [Line Items]                  
Acquired percent of the outstanding shares 100.00%                
Acquisition of businesses, net of cash acquired $ 5,236                
Acquisition of business, earn-out liability 1,131                
Goodwill 3,776                
Identifiable intangible assets 697                
Cladach Nua Teoranta [Member] | Customer Relationships [Member] | 2018 Acquisition [Member]                  
Business Acquisition [Line Items]                  
Identifiable intangible assets $ 58                
Intangible assets amortization period 6 years                
Cladach Nua Teoranta [Member] | Trade Names [Member] | 2018 Acquisition [Member]                  
Business Acquisition [Line Items]                  
Identifiable intangible assets $ 70                
Intangible assets amortization period 9 years                
Cladach Nua Teoranta [Member] | Technology-Based Intangible Assets [Member] | 2018 Acquisition [Member]                  
Business Acquisition [Line Items]                  
Identifiable intangible assets $ 499                
Intangible assets amortization period 7 years                
Cladach Nua Teoranta [Member] | Non-compete Agreements [Member] | 2018 Acquisition [Member]                  
Business Acquisition [Line Items]                  
Identifiable intangible assets $ 70                
Intangible assets amortization period 3 years                
Sonoscan, Inc. [Member] | 2018 Acquisition [Member]                  
Business Acquisition [Line Items]                  
Acquired percent of the outstanding shares   100.00%              
Acquisition of businesses, net of cash acquired   $ 46,018              
Goodwill   22,775              
Identifiable intangible assets   7,910              
Cash acquired from business acquisition   655              
Sonoscan, Inc. [Member] | Customer Relationships [Member] | 2018 Acquisition [Member]                  
Business Acquisition [Line Items]                  
Identifiable intangible assets   $ 1,700              
Intangible assets amortization period   7 years              
Sonoscan, Inc. [Member] | Trade Names [Member] | 2018 Acquisition [Member]                  
Business Acquisition [Line Items]                  
Identifiable intangible assets   $ 3,300              
Intangible assets amortization period   11 years              
Sonoscan, Inc. [Member] | Technology-Based Intangible Assets [Member] | 2018 Acquisition [Member]                  
Business Acquisition [Line Items]                  
Identifiable intangible assets   $ 2,500              
Intangible assets amortization period   7 years              
Sonoscan, Inc. [Member] | Non-compete Agreements [Member] | 2018 Acquisition [Member]                  
Business Acquisition [Line Items]                  
Identifiable intangible assets   $ 410              
Intangible assets amortization period   5 years              
Vention [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]                  
Business Acquisition [Line Items]                  
Acquisition of businesses, net of cash acquired     705,000            
Goodwill     434,123            
Identifiable intangible assets     286,000            
Cash acquired from business acquisition     3,313            
Acquisition of businesses, Cash and other closing adjustments     10,726            
Business combination, goodwill, tax deductible amount     37,200            
Vention [Member] | Customer Relationships [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]                  
Business Acquisition [Line Items]                  
Identifiable intangible assets     $ 240,000            
Intangible assets amortization period     14 years            
Vention [Member] | Trade Names [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]                  
Business Acquisition [Line Items]                  
Identifiable intangible assets     $ 2,000            
Intangible assets amortization period     6 years            
Vention [Member] | Technology-Based Intangible Assets [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]                  
Business Acquisition [Line Items]                  
Identifiable intangible assets     $ 44,000            
Vention [Member] | Technology-Based Intangible Assets Amortized over 14 Years [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]                  
Business Acquisition [Line Items]                  
Identifiable intangible assets     $ 36,000            
Intangible assets amortization period     14 years            
Vention [Member] | Technology-Based Intangible Assets Amortized over 10 Years [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]                  
Business Acquisition [Line Items]                  
Identifiable intangible assets     $ 8,000            
Intangible assets amortization period     10 years            
InterSelect GmbH [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]                  
Business Acquisition [Line Items]                  
Acquired percent of the outstanding shares       100.00%          
Goodwill       $ 3,548          
Identifiable intangible assets       1,879          
Cash acquired from business acquisition       492          
Acquisition of businesses, net of cash acquired       5,432          
InterSelect GmbH [Member] | Customer Relationships [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]                  
Business Acquisition [Line Items]                  
Identifiable intangible assets       $ 1,109          
Intangible assets amortization period       9 years          
InterSelect GmbH [Member] | Trade Names [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]                  
Business Acquisition [Line Items]                  
Identifiable intangible assets       $ 348          
Intangible assets amortization period       12 years          
InterSelect GmbH [Member] | Technology-Based Intangible Assets [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]                  
Business Acquisition [Line Items]                  
Identifiable intangible assets       $ 422          
Intangible assets amortization period       9 years          
Plas-Pak Industries, Inc. [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]                  
Business Acquisition [Line Items]                  
Acquired percent of the outstanding shares         100.00%        
Acquisition of businesses, net of cash acquired         $ 70,798        
Goodwill         24,995        
Identifiable intangible assets         33,800        
Cash acquired from business acquisition         543        
Plas-Pak Industries, Inc. [Member] | Customer Relationships [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]                  
Business Acquisition [Line Items]                  
Identifiable intangible assets         $ 23,700        
Intangible assets amortization period         17 years        
Plas-Pak Industries, Inc. [Member] | Trade Names [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]                  
Business Acquisition [Line Items]                  
Identifiable intangible assets         $ 4,100        
Intangible assets amortization period         12 years        
Plas-Pak Industries, Inc. [Member] | Technology-Based Intangible Assets [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]                  
Business Acquisition [Line Items]                  
Identifiable intangible assets         $ 5,000        
Intangible assets amortization period         9 years        
Plas-Pak Industries, Inc. [Member] | Non-compete Agreements [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]                  
Business Acquisition [Line Items]                  
Identifiable intangible assets         $ 1,000        
Intangible assets amortization period         5 years        
ACE Production Technologies Inc [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]                  
Business Acquisition [Line Items]                  
Goodwill           $ 6,383      
Identifiable intangible assets           5,010      
Acquisition of businesses, net of cash acquired           13,761      
ACE Production Technologies Inc [Member] | Customer Relationships [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]                  
Business Acquisition [Line Items]                  
Identifiable intangible assets           $ 2,800      
Intangible assets amortization period           7 years      
ACE Production Technologies Inc [Member] | Trade Names [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]                  
Business Acquisition [Line Items]                  
Identifiable intangible assets           $ 1,000      
Intangible assets amortization period           11 years      
ACE Production Technologies Inc [Member] | Technology-Based Intangible Assets [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]                  
Business Acquisition [Line Items]                  
Identifiable intangible assets           $ 1,100      
Intangible assets amortization period           7 years      
ACE Production Technologies Inc [Member] | Non-compete Agreements [Member] | 2017 Acquisition [Member] | Advanced Technology Systems [Member]                  
Business Acquisition [Line Items]                  
Identifiable intangible assets           $ 110      
Intangible assets amortization period           3 years