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LEASE COMMITMENTS (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Operating Leased Assets [Line Items]      
Rental expense, operating leases $ 6,521 $ 6,017 $ 5,232
Future minimum rental payments:      
2014 7,340    
2015 4,829    
2016 4,099    
2017 3,186    
2018 1,504    
Thereafter 3,219    
Total 24,177    
Galveston office space
     
Operating Leased Assets [Line Items]      
Annual lease payments $ 2,105