Cash Equivalents and Marketable Securities (Tables)

6 Months Ended

Jan. 26, 2013

Aggregate Cash and Cash Equivalents, Short and Long Term Investments

As of January 26, 2013 and July 31, 2012, aggregate cash and cash equivalents and short and long term investments consisted of (in thousands):

January 26, 2013:	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Market Value
Cash and cash equivalents	$	36,544	$	—	$	—		$	36,544
Government securities		27,939		2		(1	)		27,940
Total	$	64,483	$	2	$	(1	)	$	64,484
July 31, 2012:	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Market Value
Cash and cash equivalents	$	136,654	$	—	$	—		$	136,654
Government securities		302,695		66		(22	)		302,739
Total	$	439,349	$	66	$	(22	)	$	439,393