Business Combination Finite-Lived Intangible Assets Acquired as Part of Business Combination (Details) - Solarflare acquisition [Member] $ in Thousands	12 Months Ended
	Mar. 28, 2020 USD ($)
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	$ 106,000
Trademarks and Trade Names [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	$ 2,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	2 years
Developed Technology Rights [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	$ 34,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	5 years
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	$ 40,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	5 years
In Process Research and Development [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	$ 30,000