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Stock Incentive Plans (Details) (USD $)
3 Months Ended9 Months Ended
Sep. 09, 2011
Sep. 10, 2010
Sep. 09, 2011
months
Sep. 10, 2010
Stock Incentive Plans (Textuals) [Abstract]    
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period11,872   
Deferred Compensation Arrangement with Individual, Shares Issued17,808   
Deferred Compensation Arrangement with Individual, Fair Value of Shares Issued$ 325,000   
Stock Options [Member]
    
Stock Incentive Plans (Textuals) [Abstract]    
Stock option and Incentive plan, shares authorized8,000,000 8,000,000 
Share Based Compensation Arrangement by Share Based Payment Award Number of Shares Issued or Committed to Issue3,111,837 3,111,837 
Restricted Stock [Member]
    
Summary of Restricted Stock Awards    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number  1,548,698 
Weighted-average grant date fair value, Beginning balance  $ 5.49 
Number of shares, Granted  302,645 
Weighted-average grant date fair value, Granted  $ 11.60 
Number of shares, Additional shares from dividends  10,669 
Weighted-average grant date fair value, Additional shares from dividends  $ 10.52 
Number of shares, Forfeited  (2,910) 
Weighted-average grant date fair value, Forfeited$ 6.50 $ 6.50 
Number of shares, Vested  (847,799) 
Weighted-average grant date fair value, Vested  $ 6.01 
Number of shares, Ending Balance1,011,303 1,011,303 
Weighted-average grant date fair value, Ending balance$ 6.94 $ 6.94 
Share Based Compensation Arrangement by Share Based Payment Award Restricted Stock Awards Expected to Vest One Year from Balance Sheet (shares)689,427 689,427 
Share Based Compensation Arrangement by Share Based Payment Award Restricted Stock Awards Expected to Vest Two Years from Balance Sheet Date (in shares)221,142 221,142 
Share Based Compensation Arrangement by Share Based Payment Award Restricted Stock Awards Expected to Vest Three Years from Balance Sheet Date (in shares)100,734 100,734 
Summary of Stock Appreciation Rights and Dividend Equivalent Rights    
Share based payment, vesting period  3 years 
Stock Incentive Plans (Textuals) [Abstract]    
Unrecognized compensation cost4,900,000 4,900,000 
Unrecognized compensation expense related to compensation awards, period for recognition (in months)  24 
Share based payment, vesting period  3 years 
Compensation expense900,000700,0002,600,0002,200,000
Market Stock Units [Member]
    
Summary of Restricted Stock Awards    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number  84,854 
Weighted-average grant date fair value, Beginning balance  $ 9.87 
Number of shares, Granted  72,599 
Weighted-average grant date fair value, Granted  $ 13.43 
Number of shares, Additional shares from dividends  2,402 
Weighted-average grant date fair value, Additional shares from dividends  $ 10.52 
Number of shares, Ending Balance159,855 159,855 
Weighted-average grant date fair value, Ending balance$ 11.50 $ 11.50 
Summary of Stock Appreciation Rights and Dividend Equivalent Rights    
Share based payment, vesting period  3 years 
Stock Incentive Plans (Textuals) [Abstract]    
Unrecognized compensation cost1,200,000 1,200,000 
Unrecognized compensation expense related to compensation awards, period for recognition (in months)  26 
Share based payment, vesting period  3 years 
Compensation expense$ 100,000$ 100,000$ 400,000$ 200,000
Number of Trading Days of Average Closing Price of Common Stock on Vesting Date used to Calculate Total Shareholder Return (in days)  30 
Number Of Trading Days Of Average Closing Price Of Common Stock On Grant Date Used To Calculate Total Stockholder Return (in days)  30 
Threshold Percentage Of No Payout If Stockholder Return Is Less Then Target Return  50.00% 
Maximum Possible Payout to Executive Officer as a Percentage of the Target Award  150.00%