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PENSION PLANS - Plan Assets Measured at Fair Value Using Level 3 Inputs (Details) (Pension plans, USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 30, 2012
Jan. 02, 2011
Change in Plan Assets    
Fair value of plan assets at beginning of year $ 256,589 $ 264,887
Actual return on plan assets    
Transfers in and/or out of level 3 0  
Fair value of plan assets at end of year 261,811 264,887
Level 3
   
Change in Plan Assets    
Fair value of plan assets at beginning of year 109,042  
Actual return on plan assets    
Assets still held at December 30, 2012 933  
Assets sold during the period 1,371  
Purchases, sales, and settlements (15,304)  
Transfers in and/or out of level 3 1,716  
Fair value of plan assets at end of year 97,758  
Commingled Equity and Fixed Income | Level 3
   
Change in Plan Assets    
Fair value of plan assets at beginning of year 37,546  
Actual return on plan assets    
Assets still held at December 30, 2012 391  
Assets sold during the period 46  
Purchases, sales, and settlements (3,104)  
Transfers in and/or out of level 3 1,716  
Fair value of plan assets at end of year 36,595  
Private Equity Funds | Level 3
   
Change in Plan Assets    
Fair value of plan assets at beginning of year 9,323  
Actual return on plan assets    
Assets still held at December 30, 2012 0  
Assets sold during the period 604  
Purchases, sales, and settlements (6,051)  
Transfers in and/or out of level 3 0  
Fair value of plan assets at end of year 3,876  
Hedge Funds | Level 3
   
Change in Plan Assets    
Fair value of plan assets at beginning of year 45,495  
Actual return on plan assets    
Assets still held at December 30, 2012 542  
Assets sold during the period 0  
Purchases, sales, and settlements 11,250  
Transfers in and/or out of level 3 0  
Fair value of plan assets at end of year 57,287  
Real Estate | Level 3
   
Change in Plan Assets    
Fair value of plan assets at beginning of year 16,678  
Actual return on plan assets    
Assets still held at December 30, 2012 0  
Assets sold during the period 721  
Purchases, sales, and settlements (17,399)  
Transfers in and/or out of level 3 0  
Fair value of plan assets at end of year $ 0