CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net income	$ 11,197	$ 11,277	$ 23,676	$ 34,776
Other comprehensive income:
Change in net unrealized holding (losses) gains on available-for-sale securities and I/O strips	(1,783)	1,041	4,838	10,245
Deferred income taxes	517	(304)	(1,403)	(3,032)
Change in net unamortized unrealized gain on securities available-for-sale that were reclassified to securities held-to-maturity	(13)	(13)	(39)	(52)
Deferred income taxes	4	4	12	16
Reclassification adjustment for gains realized in income		(330)	(270)	(878)
Deferred income taxes		98	79	260
Change in unrealized (losses) gains on securities and I/O strips, net of deferred income taxes	(1,275)	496	3,217	6,559
Change in net pension and other benefit plan liability adjustment	101	11	251	34
Deferred income taxes	(30)	(3)	(74)	(10)
Change in pension and other benefit plan liability, net of deferred income taxes	71	8	177	24
Other comprehensive (losses) income	(1,204)	504	3,394	6,583
Total comprehensive income	$ 9,993	$ 11,781	$ 27,070	$ 41,359