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Derivative Financial Instruments (Details)
3 Months Ended9 Months Ended3 Months Ended9 Months Ended9 Months Ended
Oct. 02, 2011
USD ($)
Oct. 03, 2010
USD ($)
Oct. 02, 2011
USD ($)
Oct. 03, 2010
USD ($)
Jan. 02, 2011
USD ($)
Oct. 02, 2011
Interest rate swap derivative assets [Member]
Fair Value Hedging [Member]
USD ($)
Oct. 03, 2010
Interest rate swap derivative assets [Member]
Fair Value Hedging [Member]
USD ($)
Oct. 02, 2011
Interest rate swap derivative assets [Member]
Fair Value Hedging [Member]
USD ($)
Oct. 03, 2010
Interest rate swap derivative assets [Member]
Fair Value Hedging [Member]
USD ($)
Oct. 02, 2011
Senior Note Due 2017 [Member]
USD ($)
Oct. 20, 2009
Senior Note Due 2017 [Member]
Oct. 02, 2011
Maximum [Member]
Oct. 02, 2011
Minimum [Member]
Derivative Instruments, Gain (Loss) [Line Items]             
Gains recognized and recorded in earnings related to fair value hedge     $ 3,700,000$ 3,300,000$ 4,800,000$ 9,200,000    
Interest Rate Swaps [Line Items]             
Percentage Rate of Senior Note         7.75%7.75%  
Interest Rate Swap Notional Amount100,000,000 100,000,000      100,000,000   
Notional amount coincide with the terms of the non-recourse debt50,900,000 50,900,000          
Rate of fix margin over LIBOR           4.29%4.16%
Derivative Financial Instruments (Textual) [Abstract]             
Number of Interest Rate Swap Agreements  4          
Fair value of the swap assets included as Other Non-Current Assets8,100,000 8,100,000 3,300,000        
Ineffective portion of Fair value interest rate swap  00         
Fixed interest rate on cash flow interest rate derivative9.70% 9.70%          
Net unrealized loss recognized in the periods and recorded in accumulated other comprehensive income, net of tax700,000200,0001,000,000(300,000)         
Fair value of the swap assets recorded as a component of other assets200,000 200,000 1,800,000        
Ineffective portion of Cash Flow Hedge interest rate swap  $ 0