v3.4.0.3
Acquisitions - Schedule of Aggregate Purchase Price Allocated to Tangible and Identifiable Intangible Assets Acquired and Liabilities Assumed (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jan. 01, 2016
Apr. 01, 2016
Apr. 03, 2015
Dec. 09, 2015
Oct. 02, 2015
Consideration:          
Cash paid upon closing, net of cash acquired   $ 85,516 $ 208,369    
Goodwill   117,835     $ 93,346
BinOptics Corporation [Member]          
Business Acquisition [Line Items]          
Current assets $ 22,574        
Intangible assets 137,300        
Other assets 9,194        
Total assets acquired 169,068        
Liabilities assumed:          
Debt 2,535        
Deferred income taxes 33,444        
Other liabilities 13,106        
Total liabilities assumed 49,085        
Net assets acquired 119,983        
Consideration:          
Cash paid upon closing, net of cash acquired 208,352        
Goodwill 88,369        
BinOptics Corporation [Member] | Allocation [Member]          
Business Acquisition [Line Items]          
Current assets 23,674        
Intangible assets 136,900        
Other assets 9,194        
Total assets acquired 169,768        
Liabilities assumed:          
Debt 2,535        
Deferred income taxes 33,345        
Other liabilities 13,106        
Total liabilities assumed 48,986        
Net assets acquired 120,782        
Consideration:          
Cash paid upon closing, net of cash acquired 208,352        
Goodwill 87,570        
BinOptics Corporation [Member] | Allocation Adjustments [Member]          
Business Acquisition [Line Items]          
Current assets (1,100)        
Intangible assets 400        
Total assets acquired (700)        
Liabilities assumed:          
Deferred income taxes 99        
Total liabilities assumed 99        
Net assets acquired (799)        
Consideration:          
Goodwill $ 799        
Aeroflex/Metelics Inc [Member]          
Business Acquisition [Line Items]          
Current assets   13,415      
Intangible assets   19,700      
Other assets   6,249      
Total assets acquired   39,364      
Liabilities assumed:          
Other liabilities   7,401      
Total liabilities assumed   7,401      
Net assets acquired   31,963      
Consideration:          
Cash paid upon closing, net of cash acquired   38,000      
Goodwill   6,037      
Aeroflex/Metelics Inc [Member] | Allocation [Member]          
Business Acquisition [Line Items]          
Current assets   15,250      
Intangible assets   19,700      
Other assets   6,249      
Total assets acquired   41,199      
Liabilities assumed:          
Other liabilities   7,401      
Total liabilities assumed   7,401      
Net assets acquired   33,798      
Consideration:          
Cash paid upon closing, net of cash acquired   38,000      
Goodwill   4,202      
Aeroflex/Metelics Inc [Member] | Allocation Adjustments [Member]          
Business Acquisition [Line Items]          
Current assets   (1,835)      
Total assets acquired   (1,835)      
Liabilities assumed:          
Net assets acquired   (1,835)      
Consideration:          
Goodwill   1,835      
FiBest Limited [Member]          
Business Acquisition [Line Items]          
Current assets   10,850      
Intangible assets   45,650      
Other assets   3,334      
Total assets acquired   59,834      
Liabilities assumed:          
Debt   11,627   $ 11,600  
Deferred income taxes   12,932      
Other liabilities   3,968      
Total liabilities assumed   28,527      
Net assets acquired   31,307      
Consideration:          
Cash paid upon closing, net of cash acquired   47,517      
Goodwill   $ 16,210