Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Net income	$ 28,915	$ 32,097	$ 92,654	$ 97,315
Other comprehensive income (loss):
Unrealized holding losses on available-for-sale securities arising during the period	(39,912)	(3,228)	(94,428)	(8,397)
Tax effect	11,471	796	27,178	2,160
Net of tax	(28,441)	(2,432)	(67,250)	(6,237)
Reclassification adjustment for realized gains included in net income	0	0	0	(195)
Tax effect	0	0	0	48
Net of tax	0	0	0	(147)
Reclassification adjustment for realized (gains) losses on cash flow hedges	(1,178)	328	(524)	1,543
Tax effect	343	(90)	159	(434)
Net of tax	(835)	238	(365)	1,109
Unrealized gains on pension plan	0	0	2,187	0
Tax effect	(0)	(0)	567	(0)
Net of tax	0	0	1,620	0
Reclassification adjustment for realized losses on pension plan included in net income	17	75	49	225
Tax effect	(5)	(21)	(14)	(63)
Net of tax	12	54	35	162
Total other comprehensive loss	(17,389)	(783)	(35,088)	(3,770)
Total comprehensive income	11,526	31,314	57,566	93,545
Interest Rate Swap [Member]
Other comprehensive income (loss):
Unrealized gains on cash flow hedges	16,969	1,890	44,253	1,872
Tax effect	(5,094)	(533)	(13,381)	(529)
Net of tax	$ 11,875	$ 1,357	$ 30,872	$ 1,343