Marketable Securities (Tables)

12 Months Ended

Mar. 30, 2014

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)
March 30, 2014
U.S. government and agency securities	$	49,237	$	16	$	(55	)	$	49,198
Corporate debt obligations		74,386		200		(72	)		74,514
Mortgage-backed securities		32,778		191		(187	)		32,782
Municipal bonds		24,989		133		(9	)		25,113
Other debt securities		5,178		3		(5	)		5,176
	$	186,568	$	543	$	(328	)	$	186,783
March 31, 2013
U.S. government and agency securities	$	113,033	$	327	$	(1	)	$	113,359
Corporate debt obligations		153,460		1,429		(30	)		154,859
Mortgage-backed securities		50,852		473		(44	)		51,281
Municipal bonds		39,661		211		—			39,872
Other debt securities		602		1		—			603
	$	357,608	$	2,441	$	(75	)	$	359,974

Schedule of Amortized Cost and Estimated Fair Value of Debt Securities

The amortized cost and estimated fair value of debt securities as of March 30, 2014, 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	$	25,933	$	25,953
Due after one year through three years		118,551		118,756
Due after three years through five years		18,255		18,205
Due after five years		23,829		23,869
	$	186,568	$	186,783

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 March 30, 2014 and March 31, 2013.

	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)
March 30, 2014
U.S. government and agency securities	$	26,879	$	(55	)	$	—	$	—		$	26,879	$	(55	)
Corporate debt obligations		19,906		(72	)		—		—			19,906		(72	)
Mortgage-backed securities		11,261		(145	)		2,838		(42	)		14,099		(187	)
Municipal bonds		3,322		(9	)		—		—			3,322		(9	)
Other debt securities		2,955		(5	)		—		—			2,955		(5	)
	$	64,323	$	(286	)	$	2,838	$	(42	)	$	67,161	$	(328	)
March 31, 2013
U.S. government and agency securities	$	4,502	$	(1	)	$	—	$	—		$	4,502	$	(1	)
Corporate debt obligations		24,203		(30	)		—		—			24,203		(30	)
Mortgage-backed securities		10,048		(44	)		—		—			10,048		(44	)
	$	38,753	$	(75	)	$	—	$	—		$	38,753	$	(75	)