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Summary of Significant Accounting Policies - Concentrations of Credit Risk and Significant Customers (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Jun. 25, 2021	Jun. 26, 2020	Mar. 26, 2021	Mar. 27, 2021
Concentration Risk [Line Items]
Operating lease right-of-use assets	$ 17,439		$ 0
Total operating lease liabilities	$ 17,694
Accounting Standards Update 2016-02
Concentration Risk [Line Items]
Operating lease right-of-use assets				$ 18,403
Total operating lease liabilities				$ 18,759
Revenue Benchmark | Geographic Concentration Risk | Non-US
Concentration Risk [Line Items]
Concentration risk, percentage	85.70%	88.70%
Revenue Benchmark | Geographic Concentration Risk | Greater China
Concentration Risk [Line Items]
Concentration risk, percentage	22.70%	27.90%
Revenue Benchmark | Geographic Concentration Risk | Japan
Concentration Risk [Line Items]
Concentration risk, percentage	18.80%	20.50%
Revenue Benchmark | Geographic Concentration Risk | South Korea
Concentration Risk [Line Items]
Concentration risk, percentage	11.70%	11.80%
Sanken | Trade Accounts Receivable | Customer Concentration Risk
Concentration Risk [Line Items]
Concentration risk, percentage	23.20%		22.70%
Sanken | Revenue Benchmark | Customer Concentration Risk
Concentration Risk [Line Items]
Concentration risk, percentage	18.80%	20.50%

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