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SECURITIES (Held to maturity securities) (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Jun. 30, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Dec. 31, 2020
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 830,247		$ 84,709
Gross Unrealized Gains	1,761		9,430
Gross Unrealized Losses	(49,203)		0
Estimated Fair Value	782,805		94,139
Allowance for Credit Losses	0		0
Obligations of states and political subdivisions
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	830,247		84,709
Gross Unrealized Gains	1,761		9,430
Gross Unrealized Losses	(49,203)		0
Estimated Fair Value	782,805		94,139
Allowance for Credit Losses	$ 0	$ 0	$ 0	$ 0	$ (51)	$ (51)