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CONSOLIDATED STATEMENTS OF OTHER COMPREHENSIVE INCOME (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
CONSOLIDATED STATEMENTS OF OTHER COMPREHENSIVE INCOME    
Net income $ 6,433 $ 7,643
Unrealized net (losses) on securities:    
Unrealized net holding (losses) arising during period (1,480) (196)
Other comprehensive (loss), before tax (1,480) (196)
Income tax (benefit) related to items of other comprehensive income (609) (80)
Other comprehensive (loss), net of tax (871) (116)
Comprehensive income $ 5,562 $ 7,527