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Consolidated Statements of Comprehensive Income (Unaudited) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Statement Of Income And Comprehensive Income [Abstract]    
Net Income $ 6,651 $ 5,014
Other Comprehensive Income, net of tax:    
Net unrealized gains (losses) on available-for-sale securities 1,335 (255)
Net unrealized gains on cash flow hedges 79  
Defined benefit plan adjustments 55 45
Foreign currency translation 1,242 1,228
Other Comprehensive Income, net of tax 2,711 1,018
Comprehensive Income, net of tax $ 9,362 $ 6,032