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Revolving Credit Facilities (Detail Textuals) (USD $)
In Millions, unless otherwise specified
 1 Months Ended 9 Months Ended 9 Months Ended
Jul. 29, 2011
Revolving credit facility
Aug. 01, 2011
Revolving credit facility
Jul. 22, 2011
Revolving credit facility
Sep. 29, 2012
U.S
Revolving credit facility
Dec. 31, 2011
U.S
Revolving credit facility
Sep. 29, 2012
U.S
Letters of credit
Dec. 31, 2011
U.S
Letters of credit
Sep. 29, 2012
Canada
Revolving credit facility
Dec. 31, 2011
Canada
Revolving credit facility
Line of Credit Facility [Line Items]                  
Date of the final maturity of revolving credit facility       Jan. 07, 2014       Aug. 12, 2014  
Borrowing balance of credit facility       $ 181.3 $ 93.4 $ 45.0 $ 2.7 $ 3.9 $ 1.1
Revolving credit facility excess availability       110.3 115.7     1.8 2.6
Interest rate on revolving credit facility       4.00% 4.20%     4.00% 4.00%
Collateralized letter of credit securing certain insurance obligations           1      
Additional uncommitted accordion U.S. credit facility       100          
Revolving credit facility maximum borrowing capacity       500          
Percentage of revolving credit facility excess availability threshold       15.00%          
Revolving credit facility excess availability threshold       30          
U.S. revolving credit facility maximum borrowing capacity less the uncommitted accordion feature       400          
Minimum amount of excess availability required not to reduce outstanding borrowings by customer remittances to our lockbox       35          
Lowest level of fiscal month-end availability revolving credit facility       94          
Offering of common stock to stockholders via the rights offering     60            
Approximate gross proceeds from fully subscribed rights offering of common stock 60                
Payment on the U.S. revolving credit facility as a result of the rights offering 50                
Additional payment on the U.S. revolving credit facility   6              
Revolving credit facility fixed charge coverage ratio requirement       1.1 to 1.0          
Canadian minimum adjusted tangible net worth covenant               $ 3.9  
Canadian capital expenditures maximum percentage limit covenant               120.00%