CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net income	$ 17,299	$ 21,682
Change in securities available-for-sale:
Unrealized holding gain on securities available-for-sale arising during the period	13,219	10,960
Reclassification adjustment for gains included in net income	0	(23)
Net securities gain activity during the period	13,219	10,937
Tax effect	(2,775)	(2,297)
Net of tax amount	10,444	8,640
Defined benefit pension plans:
Amortization of net actuarial loss	63	50
Net gain activity during the period	63	50
Tax effect	(16)	(12)
Net of tax amount	47	38
Total other comprehensive income, net of tax	10,491	8,678
Comprehensive income	$ 27,790	$ 30,360