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CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Other comprehensive income:        
Net unrealized gain (loss) on available-for-sale securities, tax expense (benefit) $ 127 $ (357) $ 1,021 $ 1,975
Net realized (gain) loss on sale of available-for-sale securities included in net income, tax (expense) benefit (27) (104) (75) (325)
Change in nonqualified pension plan unrecognized net loss and unrecognized prior service cost, tax benefit $ 0 $ 15 $ 0 $ 43