Marketable Securities (Tables)

3 Months Ended

Jun. 29, 2019

Marketable Securities [Abstract]

Schedule of Available-for-sale Securities

The following table is a summary of available-for-sale securities at March 30, 2019 (in thousands):

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As of March 30, 2019	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value (Net Carrying Amount)
Corporate debt securities	$	215,098	$	1,027	$	(600	)	$	215,525
Non-U.S. government securities	13,209		8		(40		)	13,177
Agency discount notes	450		—		(1		)	449
Total securities	$	228,757	$	1,035	$	(641	)	$	229,151

The following table is a summary of available-for-sale securities at June 29, 2019 (in thousands):

As of June 29, 2019	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value (Net Carrying Amount)
Corporate debt securities	$	236,150	$	2,474	$	(102	)	$	238,522
Non-U.S. government securities	15,147		109		(7		)	15,249
U.S. Treasury securities	3,623		35		—			3,658
Total securities	$	254,920	$	2,618	$	(109	)	$	257,429

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):

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	June 29, 2019				March 30, 2019
	Amortized		Estimated		Amortized		Estimated
	Cost		Fair Value		Cost		Fair Value
Within 1 year	$	52,415	$	52,350	$	70,490	$	70,183
After 1 year	202,505		205,079		158,267		158,968
Total	$	254,920	$	257,429	$	228,757	$	229,151