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Maximum shares authorized under ESPP for sale offer to eligible employees

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Share based compensation arrangement by share based payment award options granted in period total fair value.

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Share Based Compensation Arrangement by Share Based Payment Award Other Than Options Granted in Period Fair Value

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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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As of the balance sheet date, the aggregate unrecognized cost of equity-based awards made to employees under equity-based compensation awards that have yet to vest.

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The weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, using a decimal to express in number of years.

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Description of the period of time over which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, which may be expressed in a variety of ways (for example, in years, month and year).

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The discount rate from market value on purchase date that participants pay for shares.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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Net number of share options (or share units) granted during the period.

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The weighted average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on stock options awarded under the plan during the reporting period.

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The weighted average price as of the beginning of the year at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Number of shares issued during the period as a result of an employee stock purchase plan.

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Number of share options (or share units) exercised during the current period.

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Number of shares that have been repurchased and retired during the period.

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Equity Incentive Plans (Details Textual) (USD $) In Millions, except Share data, unless otherwise specified	6 Months Ended		12 Months Ended
	Jul. 01, 2012 Y	Jul. 03, 2011	Jan. 01, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number	1,017,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price	$ 19.88		$ 19.44
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures	0		554,350
Equity Incentive Plans (Additional Textual) [Abstract]
Common stock available for the issuance of awards	1,509,454
Retirement of common stock, shares	57,457
Share-based compensation arrangement by share based payment award options granted aggregate fair value			$ 5.4
Options granted, Wtd. Avg. Exercise Price	$ 0.00
Shares of common stock issued for employees exercising options	62,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	three
Shares issued due to vesting	108,000		94,530
Stock Issued During Period, Shares, Employee Stock Purchase Plans	16,271
Senior Employee and Director [Member]
Equity Incentive Plans (Additional Textual) [Abstract]
Number of shares authorized amended	285,000
Share based compensation awards other than option [Member]
Equity Incentive Plans (Additional Textual) [Abstract]
Common stock available for the issuance of awards	681,054
Restricted Stock [Member]
Equity Incentive Plans (Additional Textual) [Abstract]
Share based compensation expense	2.1	1.8
Unrecognized compensation costs related to non vested stock option awards	9.9
Expected weighted average period to recognize expense	2.5
Grant Date Fair Value of Equity Awards Issued During Period	5.0		9.3
Number of shares authorized amended			381,010
Stock Options [Member]
Equity Incentive Plans (Additional Textual) [Abstract]
Options granted, Wtd. Avg. Exercise Price			$ 24.71
Shares of common stock issued for employees exercising options			297,406
Share based compensation expense	1.4	1.8
Unrecognized compensation costs related to non vested stock option awards	$ 3.1
Expected weighted average period to recognize expense	2.3
Performance Based Share [Member]
Equity Incentive Plans (Additional Textual) [Abstract]
Number of shares authorized amended	205,000
Employee Stock Purchase Plan [Member]
Equity Incentive Plans (Additional Textual) [Abstract]
Discount on purchase of Common Stock for employee from the current market price	5.00%
Maximum Shares Authorized Under ESPP for Sale Offer to Eligible Employees	500,000
Minimum [Member] \| Restricted Stock [Member]
Equity Incentive Plans (Additional Textual) [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years
Maximum [Member] \| Restricted Stock [Member]
Equity Incentive Plans (Additional Textual) [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	4 years