SECURITIES - Scheduled Maturities of Securities HTM and the Related Weighted Average Yields (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
HTM - Amortized Cost
Amortized cost, More than 1 Year through 5 Years	$ 4,259	$ 208
Amortized cost, More than 5 Years through 10 Yeaars	12,537	17,689
Amortized cost, More than 10 Years	772,782	844,647
Amortized cost, total	$ 789,578	$ 862,544
HTM - Weighted average yield
Weighted average yield, More than 1 Year through 5 Years	0.86%	0.36%
Weighted average yield, More than 5 Years through 10 Yeaars	1.44%	1.12%
Weighted average yield, More than 10 Years	2.26%	2.31%
Weighted average yield, total	2.24%	2.28%
HTM - Estimated Fair Value
Estimated fair value, More than 1 Year through 5 Years	$ 3,972	$ 192
Estimated fair value, More than 5 Years through 10 Yeaars	11,457	16,148
Estimated fair value, More than 10 Years	694,592	756,721
Estimated fair value, total	710,021	773,061
Agency mortgage-backed securities
HTM - Amortized Cost
Amortized cost, More than 1 Year through 5 Years	4,259	208
Amortized cost, More than 5 Years through 10 Yeaars	12,537	17,689
Amortized cost, More than 10 Years	772,782	844,647
Amortized cost, total	789,578	862,544
HTM - Estimated Fair Value
Estimated fair value, More than 1 Year through 5 Years	3,972	192
Estimated fair value, More than 5 Years through 10 Yeaars	11,457	16,148
Estimated fair value, More than 10 Years	694,592	756,721
Estimated fair value, total	$ 710,021	$ 773,061