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Stock-Based Compensation And Other Stock Plans (Employee Stock Purchase Plan) (Narrative) (Detail) (Employee Stock Purchase Plan [Member], USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of common stock	33,596	89,699	112,944
Shares reserved for issuance	1,015,066
Employee contributions for purchase of common stock	$ 2.3
Compensation expense	$ 0.5	$ 1.0	$ 1.8

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Employee Contributions For Purchase Of Common Stock

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No definition available.

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Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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Aggregate number of common shares reserved for future issuance.

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