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Business Combination - Narrative (Details) - USD ($)
$ in Thousands
9 Months Ended
Dec. 28, 2019
Mar. 30, 2019
Business Acquisition [Line Items]    
Goodwill $ 619,196 $ 340,718
Solarflare    
Business Acquisition [Line Items]    
Consideration transferred including equity interest in acquiree held prior to combination 400,000  
Fair value of equity interest in acquiree 8,400  
Cash acquired 6,765  
Acquisition related costs 4,200  
Goodwill $ 237,163