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BUSINESS COMBINATIONS (Details) - USD ($)
$ in Thousands
Feb. 02, 2016
Apr. 30, 2016
Oct. 31, 2015
Business Acquisition [Line Items]      
Goodwill   $ 267,681 $ 256,434
TeraXion High Speed Photonics Components      
Business Acquisition [Line Items]      
Payments to acquire TeraXion Inc. $ 32,000    
Inventory 119    
Fixed assets 1,381    
Goodwill 10,083    
Total purchase consideration 32,000    
TeraXion High Speed Photonics Components | Developed Technology      
Business Acquisition [Line Items]      
Developed and In-process technology $ 16,468    
Acquired finite-lived intangible assets, useful life 5 years    
TeraXion High Speed Photonics Components | In-process research and development      
Business Acquisition [Line Items]      
Developed and In-process technology $ 3,949