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Restructuring Charges - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended	6 Months Ended
	Jan. 01, 2012 Restructuring Fiscal Twenty Eleven Plan	Jul. 03, 2011 Restructuring Fiscal Twenty Zero Nine Plan
Restructuring Cost and Reserve [Line Items]
Percentage of revenue from legacy products	60.00%
Accrued restructuring and other exit costs, reversed		$ (325)

Amount of any reversal and other adjustment made during the period to the amount of a previously accrued liability for a specified type of restructuring cost, excluding adjustments for costs incurred during the period, costs settled during the period, and foreign currency translation adjustments.

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