Financial Results of Discontinued Operation (Detail) (USD $) In Thousands, unless otherwise specified	2 Months Ended	3 Months Ended	8 Months Ended	9 Months Ended
Mar. 23, 2013	Apr. 28, 2012	Mar. 23, 2013	Apr. 28, 2012
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue	$ 732	$ 11,922	$ 22,266	$ 40,486
Cost of revenue	71	5,455	8,802	17,152
Operating expenses	1,816	5,603	14,452	16,579
Income tax expense	134	300	1,385	2,710
Net income (loss) from discontinued operations, net of tax	(1,289)	564	(2,373)	4,045
Gain on sale of discontinued operations, net of tax	7,084	0	7,084	0
Total discontinued operations	$ 5,795	$ 564	$ 4,711	$ 4,045

Amount of gain (loss), after tax expense or benefit and not previously recognized, resulting from the sale of a business component.

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