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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Statement of Comprehensive Income [Abstract]        
Net income $ 17,527 $ 7,683 $ 21,778 $ 19,563
Unrealized gains and losses:        
Unrealized holding gains (losses) on available-for-sale securities arising during the period (1,780) 224 (6,799) 913
Tax effect 445 (88) 1,737 (356)
Net of tax (1,335) 136 (5,062) 557
Reclassification adjustment for realized gains included in net income (1,596)
Tax effect 579
Net of tax (1,017)
Unrealized gains (losses) on cash flow hedges 178 (203) 1,094 (43)
Tax effect (49) 82 (307) 17
Net of tax 129 (121) 787 (26)
Unrealized pension plan gains and losses:        
Unrealized pension plan losses before reclassifications 236 (2)
Tax effect (67) 1
Net of tax 169 (1)
Reclassification adjustment for amortization included in net income 92 103 183 206
Tax effect (26) (42) (51) (84)
Net of tax 66 61 132 122
Total other comprehensive (loss) income (1,140) 76 (3,974) (365)
Total comprehensive income $ 16,387 $ 7,759 $ 17,804 $ 19,198