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Stock-Based Compensation (Narrative) (Details) (USD $)
3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 0 Months Ended 6 Months Ended 12 Months Ended 0 Months Ended 9 Months Ended 0 Months Ended 3 Months Ended 9 Months Ended
Sep. 29, 2013
Sep. 23, 2012
Sep. 29, 2013
Sep. 23, 2012
Sep. 29, 2013
Stock Options [Member]
Sep. 23, 2012
Stock Options [Member]
Sep. 29, 2013
Restricted Stock Units (RSUs) [Member]
Sep. 23, 2012
Restricted Stock Units (RSUs) [Member]
Sep. 29, 2013
Time-Vested Cash Unit Awards [Member]
Sep. 23, 2012
Time-Vested Cash Unit Awards [Member]
Sep. 29, 2013
Time-Vested Cash Unit Awards [Member]
Sep. 23, 2012
Time-Vested Cash Unit Awards [Member]
Feb. 27, 2013
Monte Carlo Simulation RSU February 27, 2013 [Member]
May 28, 2013
Monte Carlo Simulation RSU May 28, 2013 [Member]
Sep. 29, 2013
Monte Carlo Simulation Cash-Based Award May 2, 2013 [Member]
Jul. 24, 2012
LTIP Second Half 2012 Plan [Member]
Jun. 30, 2013
LTIP Second Half 2012 Plan [Member]
Dec. 30, 2012
LTIP Second Half 2012 Plan [Member]
Apr. 30, 2013
LTIP Second Half 2012 Plan [Member]
May 28, 2013
LTIP 2013 Plan [Member]
Feb. 27, 2013
LTIP 2013 Plan [Member]
Sep. 29, 2013
LTIP 2013 Plan [Member]
May 02, 2013
May 2, 2013 Cash-Based Award [Member]
Sep. 29, 2013
May 2, 2013 Cash-Based Award [Member]
Sep. 29, 2013
May 2, 2013 Cash-Based Award [Member]
Sep. 29, 2013
LTIP 2011 Plan [Member]
Sep. 29, 2013
LTIP 2012 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                                      
Share-based compensation expense $ 1,300,000 $ 900,000 $ 5,100,000 $ 3,600,000                           $ 600,000       $ 29,000          
Allocated Share Based Compensation Expense Reversal                                 100,000                 300,000 200,000
Awards vested                                     74,321                
Grant date price of vested shares                                     7.59                
Share-based compensation expense net of tax 1,200,000 800,000 5,000,000 3,500,000                                              
Tax benefit from option exercise     400,000 800,000                                              
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value             $ 12.19                 $ 7.59       $ 11.56 $ 11.91            
Total intrinsic value of options exercised         700,000 100,000                                          
Total fair value of restricted stock awards             4,200,000 2,100,000                                      
Unrecognized compensation cost         1,200,000   3,700,000                             200,000          
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Maximum Units Outstanding Achievable                                           26,400          
Weighted-average period over which unrecognized compensation cost will be recognized (years)         1 year 9 months 18 days   1 year 6 months                                        
Deferred compensation arrangement liability, current and noncurrent                 700,000 700,000 700,000 700,000                              
Deferred compensation arrangement with individual, share-based compensation expense                 300,000 300,000 900,000 800,000                              
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate     50.79% 52.08%                 47.01% 45.23%                          
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate     0.835% 0.75%                 0.35% 0.41%                          
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate     0.00% 0.00%                 0.00% 0.00%                          
Cash-based Compensation Arrangement by Cash-based Payment Award, Established Target Cash Amount                                             400,000        
Cash-based Compensation Arrangement by Cash-based Payment Award, Fair Value                                                 0.0079    
Allocated Cash-based Compensation Expense                                               $ 50,000      
Cash-based Compensation Arrangement by Cash-based Payment Award, Fair Value Assumptions, Expected Volatility Rate                             46.63%                        
Cash-based Compensation Arrangement by Cash-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate                             0.42%                        
Cash-based Compensation Arrangement by Cash-based Payment Award, Fair Value Assumptions, Expected Dividend Rate                             0.00%