FDIC-ASSISTED ACQUIRED LOANS - Impact of Adjustments of Acquired Loans on Financial Results (Details) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2021 USD ($) $ / shares	Mar. 31, 2020 USD ($) $ / shares
Details
Impact of acquired loan pools on net interest income	$ 691	$ 1,866
Impact of acquired loan pools on net interest margin (in basis points)	5	16
Net impact of acquired loan pools to pre-tax income	$ 691	$ 1,866
Net impact of acquired loan pools to net of taxes	$ 533	$ 1,441
Impact of acquired loan pools to diluted earnings per common share | $ / shares	$ 0.04	$ 0.10