Investment Securities (Tables)

9 Months Ended

Feb. 27, 2016

Investment Securities [Abstract]

Schedule Of Investment Securities

February 27, 2016	Amortized Cost		Unrealized Gains		Unrealized Losses		Estimated Fair Value
US government and agency obligations	$	10,989	$	2	$	-	$	10,991
Municipal bonds		79,951		226		-		80,177
Commercial paper		2,992		-		3		2,989
Corporate bonds		267,802		-		1,327		266,475
Foreign government obligations		2,056		-		-		2,056
Asset backed securities		12,687		-		1		12,686
Mutual funds		3,561		-		25		3,536
Total current investment securities	$	380,038	$	228	$	1,356	$	378,910
Mutual funds		1,493		386		-		1,879
Total noncurrent investment securities	$	1,493	$	386	$	-	$	1,879

May 30, 2015	Amortized Cost		Unrealized Gains		Unrealized Losses		Estimated Fair Value
US government and agency obligations	$	9,609	$	21	$	-	$	9,630
Municipal bonds		76,228		83		-		76,311
Certificates of deposit		2,001		1		-		2,002
Commercial paper		7,491		5		-		7,496
Corporate bonds		136,411		-		47		136,364
Foreign government obligations		1,042		3		-		1,045
Asset backed securities		14,356		-		4		14,352
Mutual funds		2,758		3		-		2,761
Total current investment securities	$	249,896	$	116	$	51	$	249,961
Mutual funds		1,199		548		-		1,747
Total noncurrent investment securities	$	1,199	$	548	$	-	$	1,747

Schedule Of Contractual Maturities Of Investment Securities

		Estimated Fair Value
Within one year	$	206,189
1-5 years		169,185
Total	$	375,374