COMMITMENTS AND CONTINGENCIES (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Operating Leases      
Lease obligations, initial minimum term (in Duration) 1 year    
Lease obligations, initial maximum term (in Duration) 12 years    
Total rent expense $ 2,261 $ 4,807 $ 3,136
Contractual Commitments      
Maximum term of supply agreements with various food vendors (in Duration) 5 years    
Purchase obligations 69,078    
Advance payments made to suppliers   690  
Impairment of supplier advance $ 0 $ 2,100 $ 0