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Consolidated Statements of Income (Parenthetical) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Income Statement [Abstract]      
Accumulated other comprehensive earnings reclassifications $ 189 $ 988 $ 374
Income tax expense from reclassification $ 66 $ 346 $ 131