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OPERATING LEASES (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
OPERATING LEASES      
Net rent expense $ 9,881 $ 10,132 $ 10,374
Net occupancy
      
OPERATING LEASES      
Rent expense charged to operating expenses 9,840 10,053 10,286
Less sublease income (52) (25) (74)
Net rent expense 9,788 10,028 10,212
Equipment expense
      
OPERATING LEASES      
Rent expense charged to operating expenses $ 93 $ 104 $ 162
Minimum
      
OPERATING LEASES      
Period for which option to extend the lease term is available 5 years    
Maximum
      
OPERATING LEASES      
Period for which option to extend the lease term is available 15 years