Fair Value Measurements (Tables)

9 Months Ended

May 04, 2013

Fair Value Disclosures [Abstract]

Company's Assets and Liabilities Measured at Fair Value on Recurring Basis

The Company’s assets and liabilities measured at fair value on a recurring basis were as follows:

	May 4, 2013
(in thousands)	Level 1		Level 2		Level 3			Fair Value
Short-term marketable securities	$	21,522	$	—	$	—		$	21,522
Long-term marketable securities		45,053		16,088		—			61,141
	$	66,575	$	16,088	$	—		$	82,663
Contingent consideration	$	—	$	—	$	(23,533	)	$	(23,533	)

	August 25, 2012
(in thousands)	Level 1		Level 2			Level 3		Fair Value
Short-term marketable securities	$	22,515	$	—		$	—	$	22,515
Long-term marketable securities		40,424		13,275			—		53,699
	$	62,939	$	13,275		$	—	$	76,214
Derivative instruments	$	—	$	(4,915	)	$	—	$	(4,915	)

Change in Contingent Consideration Liability at Fair Value on Recurring Basis

The change in the contingent consideration liability, which is a Level 3 liability measured at fair value on a recurring basis, is summarized as follows:

(in thousands)	Twelve Weeks  Ended May 4, 2013			Thirty-Six Weeks  Ended May 4, 2013
Fair value – beginning of period	$	(23,005	)	$	—
Fair value of contingent consideration issued during the period		—			(22,678	)
Change in fair value		(528	)		(855	)
Fair value – end of period	$	(23,533	)	$	(23,533	)