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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Income Statement [Abstract]        
Unrealized losses on securities, tax $ 857 $ 292 $ 1,083 $ 610
Reclassification adjustment, tax 37 5 42 728
Other comprehensive loss, tax $ 894 $ 297 $ 1,125 $ 1,338