Consolidated Statements of Comprehensive Income (Parenthetical) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Statement of Comprehensive Income [Abstract]      
Unrealized (losses) gains arising during the period, net of taxes $ 287 $ (635) $ 119
Reclassification adjustment for (gains) losses included in net earnings, net of tax $ 12 $ (17)