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INVESTMENT SECURITIES (Schedule of Amortized Cost and Fair Value of Securities Classified by Contractual Maturity) (Details) - USD ($)
$ in Thousands
Mar. 31, 2024
Dec. 31, 2023
Held-to-maturity Securities, Amortized Cost    
Due within 1 year $ 20,021  
After 1 year through 5 years 17,969 $ 37,984
After 5 years though 10 years 1,046 1,112
After 10 years 421,213 429,764
Amortized Cost, total 460,249 468,860
Held-to-maturity Securities, Fair Value    
Due within 1 year 19,299  
After 1 year through 5 years 16,289 35,507
After 5 years though 10 years 974 1,044
After 10 years 356,618 367,701
Fair Value, total 393,180 404,252
Available-for-sale Securities, Amortized Cost    
After 1 year through 5 years 72,958 65,822
After 5 years though 10 years 19,320 22,163
After 10 years 487,782 451,005
Amortized Cost, total 580,060 538,990
Available-for-sale Securities, Fair Value    
After 1 year through 5 years 67,179 60,757
After 5 years though 10 years 17,724 21,174
After 10 years 412,886 379,276
Fair Value, total 497,789 461,207
Securities pledged 180,900 845,700
Securities encumbered $ 68,100 $ 60,000