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COMMITMENTS (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Future minimum lease payments and rentals under operating leases [Abstract]      
2013 $ 30,582    
2014 28,668    
2015 25,872    
2016 25,152    
2017 22,863    
Subsequent to 2018 79,156    
Total minimum payments 212,293    
Less total minimum sublease rentals (36)    
Net minimum lease payments 212,257    
Operating Leases, Rent Expense, Net [Abstract]      
Rent expense under operating lease 29,658 30,086 31,472
Minimum [Member]
      
Operating Leased Assets [Line Items]      
Initial lease term 5 years    
Renewal of lease term 1 year    
Maximum [Member]
      
Operating Leased Assets [Line Items]      
Initial lease term 30 years    
Renewal of lease term 25 years    
Property [Member]
      
Operating Leases, Rent Expense, Net [Abstract]      
Minimum 27,633 28,347 29,835
Additional rentals based on sales 0 34 404
Sublease income (137) (292) (491)
Rent expense under operating lease 27,496 28,089 29,748
Equipment [Member]
      
Operating Leases, Rent Expense, Net [Abstract]      
Rent expense under operating lease $ 2,162 $ 1,997 $ 1,724