Marketable Securities (Tables)

12 Months Ended

Apr. 03, 2016

Investments Debt And Equity Securities [Abstract]

Schedule of Available-for-Sale Securities

The Company’s portfolio of available-for-sale marketable securities consists of the following:

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
	(In thousands)
April 3, 2016
U.S. government and agency securities	$	97,895	$	433	$	(15	)	$	98,313
Corporate debt obligations		98,164		216		(69	)		98,311
Mortgage-backed securities		17,944		86		(53	)		17,977
Municipal bonds		10,355		65		(1	)		10,419
Other debt securities		4,412		8		(1	)		4,419
	$	228,770	$	808	$	(139	)	$	229,439
March 29, 2015
U.S. government and agency securities	$	54,279	$	173	$	(12	)	$	54,440
Corporate debt obligations		99,117		257		(51	)		99,323
Mortgage-backed securities		26,676		182		(36	)		26,822
Municipal bonds		16,647		76		(2	)		16,721
Other debt securities		3,860		8		—			3,868
	$	200,579	$	696	$	(101	)	$	201,174

Schedule of Amortized Cost and Estimated Fair Value of Debt Securities

The amortized cost and estimated fair value of debt securities as of April 3, 2016, by contractual maturity, are presented below.  Expected maturities will differ from contractual maturities because the issuers of securities may have the right to repay obligations without prepayment penalties. Certain debt instruments, although possessing a contractual maturity greater than one year, are classified as short-term marketable securities based on their ability to be traded on active markets and availability for current operations.

	Amortized Cost		Estimated Fair Value
	(In thousands)
Due in one year or less	$	55,154	$	55,192
Due after one year through three years		147,223		147,593
Due after three years through five years		15,851		16,063
Due after five years		10,542		10,591
	$	228,770	$	229,439

Schedule of Unrealized Losses by Investment Category

The following table presents the Company’s marketable securities with unrealized losses by investment category and length of time that individual securities have been in a continuous unrealized loss position as of April 3, 2016 and March 29, 2015.

	Less Than 12 Months					12 Months or Greater					Total
Description of Securities	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
	(In thousands)
April 3, 2016
U.S. government and agency securities	$	23,221	$	(15	)	$	—	$	—		$	23,221	$	(15	)
Corporate debt obligations		31,438		(61	)		741		(8	)		32,179		(69	)
Mortgage-backed securities		8,171		(39	)		1,864		(14	)		10,035		(53	)
Municipal bonds		379		(1	)		—		—			379		(1	)
Other debt securities		1,628		(1	)		—		—			1,628		(1	)
	$	64,837	$	(117	)	$	2,605	$	(22	)	$	67,442	$	(139	)
March 29, 2015
U.S. government and agency securities	$	16,607	$	(12	)	$	—	$	—		$	16,607	$	(12	)
Corporate debt obligations		28,421		(51	)		—		—			28,421		(51	)
Mortgage-backed securities		4,174		(8	)		4,581		(28	)		8,755		(36	)
Municipal bonds		921		(2	)		—		—			921		(2	)
	$	50,123	$	(73	)	$	4,581	$	(28	)	$	54,704	$	(101	)