CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited)
Net income	$ 15,795	$ 18,069	$ 51,115	$ 45,756
Other comprehensive income (loss):
Change in net unrealized holding gains (losses) on available-for-sale securities and I/O strips	(243)	(13,188)	(701)	(20,317)
Deferred income taxes	70	3,824	203	5,891
Change in unrealized gains (losses) on securities and I/O strips, net of deferred income taxes	(173)	(9,364)	(498)	(14,426)
Change in net pension and other benefit plan liability adjustment	(35)	104	(104)	311
Deferred income taxes	(3)	(34)	(11)	(101)
Change in pension and other benefit plan liability, net of deferred income taxes	(38)	70	(115)	210
Other comprehensive income (loss)	(211)	(9,294)	(613)	(14,216)
Total comprehensive income	$ 15,584	$ 8,775	$ 50,502	$ 31,540