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Stock-Based Compensation Summary of Non-Vested Stock Activity (Details) (USD $)
3 Months Ended 9 Months Ended
Sep. 30, 2012
Oct. 02, 2011
Sep. 30, 2012
Oct. 02, 2011
Jan. 01, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Stock-based compensation $ 309,000 $ 273,000 $ 588,000 $ 795,000  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number 937,220,000   937,220,000   385,426,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period     835,673,000    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value $ 5.87   $ 7.98    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period     (262,067,000)    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value     $ 7.62    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period     (21,812,000)    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period, Weighted Average Grant Date Fair Value     $ 9.32    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value $ 7.85   $ 7.85   $ 7.54
Segment, Continuing Operations [Member]
         
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Stock-based compensation     $ 588,000    
Board of Directors Chairman [Member]
         
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period     200,000