CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME      
Net income $ 32,774 $ 28,726 $ 22,357
Unrealized net gains (losses) on securities:      
Unrealized net holding gains (losses) arising during period 2,902 (14,892) 2,307
Reclassification adjustment for (gains) included in net income (776) (553) (1,597)
Other comprehensive income (loss) , before tax 2,126 (15,445) 710
Income tax expense (benefit) related to items of other comprehensive income 765 (6,359) 292
Other comprehensive income (loss), net of tax 1,361 (9,086) 418
Comprehensive income $ 34,135 $ 19,640 $ 22,775