Marketable Securities (Tables)

6 Months Ended

Sep. 23, 2017

Marketable Securities [Abstract]

Schedule of Available-for-sale Securities

The following table is a summary of available-for-sale securities at September 23, 2017 (in thousands):

As of September 23, 2017	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value (Net Carrying Amount)
Corporate debt securities	$	135,219	$	103	$	(89	)	$	135,233
Non-US government securities	11,817		—		(14		)	11,803
US Treasury securities	998		—		—			998
Certificates of deposit	500		—		—			500
Agency discount notes	459		—		—			459
Total securities	$	148,993	$	103	$	(103	)	$	148,993

The following table is a summary of available-for-sale securities at March 25, 2017 (in thousands):

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As of March 25, 2017	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value (Net Carrying Amount)
Corporate debt securities	33,350		$	—	$	(20	)	$	33,330
Commercial paper	66,518		—		(35		)	66,483
Total securities	$	99,868	$	—	$	(55	)	$	99,813

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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	September 23, 2017				March 25, 2017
	Amortized		Estimated		Amortized		Estimated
	Cost		Fair Value		Cost		Fair Value
Within 1 year	$	15,454	$	15,446	$	99,868	$	99,813
After 1 year	133,539		133,547		—		—
Total	$	148,993	$	148,993	$	99,868	$	99,813