Consolidated Statements of Comprehensive Income (Parentheticals) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Net unrealized gain (loss) on cashflow hedge	$ 22,203	$ 6,743	$ (808)
Net unrealized gain (loss) on cashflow hedge, deferred tax	(5,329)	(1,618)	194
Net unrealized gain (loss) on securities fair value hedge	7,663	(550)
Net unrealized gain (loss) on securities fair value hedge, deferred tax	(1,839)	132
OCI, Debt securities, available-for-sale, unealized holding gain (loss), before adjustment and tax	(52,327)	(6,510)	4,830
OCI, Debt securities, available-for-sale, unealized holding gain (loss), before adjustment, tax	12,558	1,562	(1,159)
Other comprehensive income (loss), reclassification adjustment from AOCI for sale of securities, before tax	(708)	425	3,472
Other comprehensive income (loss), reclassification adjustment from AOCI for sale of securities, tax	170	(102)	(833)
Net change in actuarial gain (loss) on post-retirement benefits plan, before tax	214	64	(116)
Net change in actuarial gain (loss) on post-retirement benefits plan, tax	(51)	(15)	28
Net change in actuarial gain (loss) on defined-benefit pension plan, before tax	(70)	301	(78)
Net change in actuarial gain (loss) on defined-benefit pension plan, tax	$ 17	$ (72)	$ 19