Fair Value (Tables)

3 Months Ended

Jun. 29, 2013

Fair Value [Abstract]

Schedule Of Assets And Liabilities Measured On A Recurring Basis

	June 29, 2013
	Fair value measurements
Assets	Level 1			Level 2		Level 3		Total
Money market funds	$	25,729	(1)	$	-	$	-	$	25,729
Municipal bonds		-			82,398		-		82,398
Corporate bonds		-			26,394		-		26,394
Certificates of deposits		5,075			1,406		-		6,481
Commercial paper		-			1,498		-		1,498
Equity mutual funds related to NQDCP		9,685			-		-		9,685
Long-term investments in ARS		-			-		1,900		1,900
Total assets at fair value	$	40,489		$	111,696	$	1,900	$	154,085
Liabilities
Obligation related to NQDCP	$	9,685		$	-	$	-	$	9,685
	March 30, 2013
	Fair value measurements
Assets	Level 1			Level 2		Level 3		Total
Money market funds	$	13,476	(1)	$	-	$	-	$	13,476
Municipal bonds		-			58,658		-		58,658
Corporate bonds		-			25,825		-		25,825
Government agency bonds		-			16,187		-		16,187
Certificate of deposits		3,459			4,300		-		7,759
Commercial Papers					5,745				5,745
Equity mutual funds related to NQDCP		9,673			-		-		9,673
Long-term investments in ARS		-			-		13,800		13,800
Total assets at fair value	$	26,608		$	110,715	$	13,800	$	151,123
Liabilities
Obligation related to NQDCP	$	9,673		$	-	$	-	$	9,673

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(1) Money market funds of $25,729,000 and $13,476,000 were classified as cash equivalents as of June 29, 2013 and March 30, 2013, respectively.

Schedule Of Level 3 Assets

	Three Months Ended
	June 29,		June 30,
	2013		2012
Beginning balance of ARS classified as Level 3	$	13,800	$	25,900
Redemption of investments in ARS at par		(12,950)		(12,750)
Reversals of unrealized losses due to redemptions		970		250
Change in fair value of existing ARS		80		200
Ending balance of ARS classified as Level 3	$	1,900	$	13,600