Quarterly report pursuant to Section 13 or 15(d)

SECURITIES AND OTHER INVESTMENTS (Schedule of Amortized Cost and Estimated Fair Value of Securities) (Details)

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SECURITIES AND OTHER INVESTMENTS (Schedule of Amortized Cost and Estimated Fair Value of Securities) (Details) - USD ($)
$ in Thousands
Jun. 30, 2024
Dec. 31, 2023
AFS Securities [Abstract]    
Due in one year or less, Amortized Cost $ 44,020 $ 52,427
Due in one year or less, Estimated Fair Value 43,708 51,936
Due after one year through five years, Amortized Cost 209,438 150,271
Due after one year through five years, Estimated Fair Value 207,620 149,545
Due after five years through ten years, Amortized Cost 332,192 282,309
Due after five years through ten years, Estimated Fair Value 309,850 261,720
Due after ten years, Amortized Cost 2,390,772 2,130,529
Due after ten years, Estimated Fair Value 1,994,545 1,768,060
Total AFS securities 2,976,422 2,615,536
Total AFS securities, Estimated Fair Value 2,555,723 2,231,261
HTM Securities [Abstract]    
Due in one year or less, Carrying Value 5,333 3,065
Due in one year or less, Estimated Fair Value 5,291 3,058
Due after one year through five years, Carrying Value 14,017 34,093
Due after one year through five years, Estimated Fair Value 14,151 34,613
Due after five years through ten years, Carrying Value 83,225 45,919
Due after five years through ten years, Estimated Fair Value 80,084 45,263
Due after ten years, Carrying Value 707,875 754,301
Due after ten years, Estimated Fair Value 666,946 725,140
Total HTM Securities 810,450 837,378
Total HTM securities, Estimated Fair Value $ 766,472 $ 808,074