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COMMITMENTS AND CONTINGENCIES - Revolving Credit Facility (Details) (Revolving credit facility, Bank of America, N.A. and Wells Fargo Capital Finance, LLC, USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 29, 2013
Revolving Credit Facility [Line Items]  
Maximum borrowing capacity $ 80
Revolving credit facility, letter of credit 6.7
Fee percentage on unused capacity 0.25%
Excess Liquidity Greater than $40 million | Minimum
 
Revolving Credit Facility [Line Items]  
Revolving credit facility, excess liquidity 40
Excess Liquidity Between $20 million and $40 million | Minimum
 
Revolving Credit Facility [Line Items]  
Revolving credit facility, excess liquidity 20
Excess Liquidity Between $20 million and $40 million | Maximum
 
Revolving Credit Facility [Line Items]  
Revolving credit facility, excess liquidity 40
Excess Liquidity Less than $20 million | Maximum
 
Revolving Credit Facility [Line Items]  
Revolving credit facility, excess liquidity 20
Prime Rate Loans | Excess Liquidity Greater than $40 million
 
Revolving Credit Facility [Line Items]  
Basis spread on variable rate 0.50%
Prime Rate Loans | Excess Liquidity Between $20 million and $40 million
 
Revolving Credit Facility [Line Items]  
Basis spread on variable rate 0.75%
Prime Rate Loans | Excess Liquidity Less than $20 million
 
Revolving Credit Facility [Line Items]  
Basis spread on variable rate 1.00%
LIBOR Rate Loans
 
Revolving Credit Facility [Line Items]  
Additional basis rate on LIBOR margin 0.125%
LIBOR Rate Loans | Excess Liquidity Greater than $40 million
 
Revolving Credit Facility [Line Items]  
Basis spread on variable rate 1.50%
LIBOR Rate Loans | Excess Liquidity Between $20 million and $40 million
 
Revolving Credit Facility [Line Items]  
Basis spread on variable rate 1.75%
LIBOR Rate Loans | Excess Liquidity Less than $20 million
 
Revolving Credit Facility [Line Items]  
Basis spread on variable rate 2.00%
Liquidity requirement component
 
Revolving Credit Facility [Line Items]  
Revolving credit facility, unused portion 73.3
Cash and cash equivalents under control agreements 110.6
Revolving credit facility, total liquidity 183.9
Liquidity requirement component | Minimum
 
Revolving Credit Facility [Line Items]  
Revolving credit facility, liquidity requirement 12
Percent of eligible accounts receivable
 
Revolving Credit Facility [Line Items]  
Revolving credit facility borrowing limits, % of accounts receivable 85.00%
Liquidation value of pledged real estate
 
Revolving Credit Facility [Line Items]  
Revolving credit facility borrowing limits, pledged real estate 15
Revolving credit facility borrowing limits, quarterly reduction of pledged real estate 0.4
Revolving credit facility borrowing limits, liquidation value of pledged real estate $ 13.1