Marketable Securities (Tables)

9 Months Ended

Dec. 26, 2020

Marketable Securities [Abstract]

Schedule of Available-for-sale Securities

The following table is a summary of available-for-sale securities at December 26, 2020 (in thousands):

As of December 26, 2020	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value (Net Carrying Amount)
Corporate debt securities	$	347,642	$	5,484	$	(11)	$	353,115
Non-U.S. government securities	12,681		218		—		12,899
Agency discount notes	3,760		6		—		3,766
Total securities	$	364,083	$	5,708	$	(11)	$	369,780

The following table is a summary of available-for-sale securities at March 28, 2020 (in thousands):

As of March 28, 2020	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value (Net Carrying Amount)
Corporate debt securities	$	286,668	$	1,157	$	(3,993)	$	283,832
Non-U.S. government securities	12,483		260		—		12,743
U.S. Treasury securities	8,839		167		—		9,006
Total securities	$	307,990	$	1,584	$	(3,993)	$	305,581

Schedule of Cost and Estimated Fair Value of Available-for-sale Securities by Contractual Maturity

The cost and estimated fair value of available-for-sale securities by contractual maturities were as follows (in thousands):

	December 26, 2020				March 28, 2020
	Amortized		Estimated		Amortized		Estimated
	Cost		Fair Value		Cost		Fair Value
Within 1 year	$	42,680	$	43,289	$	22,012	$	22,008
After 1 year	321,403		326,491		285,978		283,573
Total	$	364,083	$	369,780	$	307,990	$	305,581