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Stock-Based Compensation (Details) (USD $)	3 Months Ended
	Mar. 30, 2013 Installment	Mar. 31, 2012
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 1,269,000	$ 1,074,000
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense related to stock awards	$ 7,933,000
Recognition period	1 year 10 months 24 days
Number of annual installments in which stock awards vest	3
Performance Based Restricted Stock Units [Abstract]
Performance-based Restricted Stock Units, Terms of Award	On March 6, 2013, the Company granted to executive officers of the Company performance-based restricted stock units (RSUs), which represented, in aggregate, the right to receive 60,360 shares (the target RSU amount), subject to adjustment, with a grant date fair value of $25.98 per share. The RSUs are subject to adjustment based on the achievement of the performance measure selected for the 2013 fiscal year, which is a specified target for adjusted earnings before interest, taxes, depreciation, and amortization (adjusted EBITDA) generated from continuing operations for the 2013 fiscal year. The RSUs are adjusted by comparing the actual adjusted EBITDA for the performance period to the target adjusted EBITDA. Actual adjusted EBITDA between 50% and 100% of the target adjusted EBITDA results in an adjustment of 50% to 100% of the RSU amount. Actual adjusted EBITDA between 100% and 115% of the target adjusted EBITDA results in an adjustment using a straight-line linear scale between 100% and 150% of the RSU amount. If actual adjusted EBITDA is below 50% of the target adjusted EBITDA for the 2013 fiscal year, all RSUs will be forfeited. In the first quarter of 2013, the Company recognized compensation expense based on the probable number of RSUs expected to vest, which was 100% of the target RSU amount. Following the adjustment, the RSUs will be subject to additional time-based vesting, and will vest in three equal annual installments on March 10 of 2014, 2015, and 2016, provided that the executive officer is employed by the Company on the applicable vesting dates.
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSUs granted (in shares)	60,360
Grant date fair value (in dollars per share)	$ 25.98
Officers [Member] | Stock Options [Member]
Summary of stock option activity [Roll Forward]
Granted (in shares)	92,912
Non employee directors [Member] | Restricted Stock Units (RSUs) [Member]
Summary of changes in unvested RSU's [Roll Forward]
Granted (in shares)	61,657

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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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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Description of pertinent provisions of equity-based compensation awards that have actual or potential impact upon the company's financial statements.

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