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Business Combination (Details) - USD ($)
$ in Thousands
12 Months Ended
Mar. 28, 2020
Mar. 30, 2019
Business Acquisition [Line Items]    
Goodwill $ 619,196 $ 340,718
Solarflare acquisition [Member]    
Business Acquisition [Line Items]    
Business Combination, Consideration Transferred, Including Equity Interest in Acquiree Held Prior to Combination 400,000  
Business Combination, Step Acquisition, Equity Interest in Acquiree, Fair Value 8,400  
Cash and cash equivalents 6,765  
Business Combination, Acquisition Related Costs 4,200  
Goodwill 237,163  
Intangibles acquired 106,000  
Deephi Tech Acquisition [Member]    
Business Acquisition [Line Items]    
Goodwill 237,200  
Intangibles acquired 106,000  
Airrays GmbH [Member]    
Business Acquisition [Line Items]    
Goodwill 14,100  
Business combination, consideration 29,000  
Intangibles acquired 18,200  
NGCodec, Inc. [Member]    
Business Acquisition [Line Items]    
Goodwill 28,900  
Business combination, consideration 54,000  
Intangibles acquired $ 26,700