Marketable Securities (Tables)

9 Months Ended

Dec. 29, 2018

Marketable Securities [Abstract]

Schedule of Available-for-sale Securities

The following table is a summary of available-for-sale securities at December 29, 2018 (in thousands):

As of December 29, 2018	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value (Net Carrying Amount)
Corporate debt securities	$	212,338	$	142	$	(1,703	)	$	210,777
Non-US government securities	13,704		2		(84		)	13,622
Agency discount notes	459		—		(2		)	457
Total securities	$	226,501	$	144	$	(1,789	)	$	224,856

The following table is a summary of available-for-sale securities at March 31, 2018 (in thousands):

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As of March 31, 2018	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value (Net Carrying Amount)
Corporate debt securities	$	185,636	$	4	$	(2,318	)	$	183,322
Non-US government securities	14,730		—		(111		)	14,619
Certificates of deposit	500		—		—			500
Agency discount notes	459		—		(4		)	455
Total securities	$	201,325	$	4	$	(2,433	)	$	198,896

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

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

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	December 29, 2018				March 31, 2018
	Amortized		Estimated		Amortized		Estimated
	Cost		Fair Value		Cost		Fair Value
Within 1 year	$	60,157	$	59,793	$	26,560	$	26,397
After 1 year	166,344		165,063		174,765		172,499
Total	$	226,501	$	224,856	$	201,325	$	198,896