Quarterly report pursuant to Section 13 or 15(d)

INVESTMENT SECURITIES (Unrealized Losses on Investment Securities) (Details)

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INVESTMENT SECURITIES (Unrealized Losses on Investment Securities) (Details) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Available-for-sale securities    
Less Than 12 Months, Fair Value $ 40,038 $ 99,073
Less Than 12 Months, Unrealized Losses 569 4,411
Greater Than 12 Months, Fair Value 335,807 290,012
Greater Than 12 Months, Unrealized Losses 34,691 37,535
Total Fair Value 375,845 389,085
Total Unrealized Losses 35,260 41,946
Held-to-maturity, Debt Securities    
Less Than 12 Months, Fair Value 14,187 266,275
Less Than 12 Months, Unrealized Losses 403 17,832
Greater Than 12 Months, Fair Value 596,563 345,643
Greater Than 12 Months, Unrealized Losses 39,171 30,219
Total Fair Value 610,750 611,918
Total Unrealized Losses 39,574 48,051
U.S. Government Treasury [Member]    
Available-for-sale securities    
Less Than 12 Months, Fair Value 994 983
Less Than 12 Months, Unrealized Losses 0 0
Greater Than 12 Months, Fair Value 19,481 19,189
Greater Than 12 Months, Unrealized Losses 1,611 1,928
Total Fair Value 20,475 20,172
Total Unrealized Losses 1,611 1,928
Held-to-maturity, Debt Securities    
Less Than 12 Months, Fair Value 4,827 177,552
Less Than 12 Months, Unrealized Losses 106 11,018
Greater Than 12 Months, Fair Value 432,346 254,181
Greater Than 12 Months, Unrealized Losses 20,166 14,623
Total Fair Value 437,173 431,733
Total Unrealized Losses 20,272 25,641
U.S. Government Agency [Member]    
Available-for-sale securities    
Less Than 12 Months, Fair Value 29,035 63,112
Less Than 12 Months, Unrealized Losses 354 2,572
Greater Than 12 Months, Fair Value 133,057 113,004
Greater Than 12 Months, Unrealized Losses 9,777 10,291
Total Fair Value 162,092 176,116
Total Unrealized Losses 10,131 12,863
States and Political Subdivisions [Member]    
Available-for-sale securities    
Less Than 12 Months, Fair Value 0 1,425
Less Than 12 Months, Unrealized Losses 0 2
Greater Than 12 Months, Fair Value 39,905 38,760
Greater Than 12 Months, Unrealized Losses 5,663 6,853
Total Fair Value 39,905 40,185
Total Unrealized Losses 5,663 6,855
Mortgage-Backed Securities [Member]    
Available-for-sale securities    
Less Than 12 Months, Fair Value 0 6,594
Less Than 12 Months, Unrealized Losses 0 959
Greater Than 12 Months, Fair Value 68,892 60,458
Greater Than 12 Months, Unrealized Losses 10,137 10,467
Total Fair Value 68,892 67,052
Total Unrealized Losses 10,137 11,426
Held-to-maturity, Debt Securities    
Less Than 12 Months, Fair Value 9,360 88,723
Less Than 12 Months, Unrealized Losses 297 6,814
Greater Than 12 Months, Fair Value 164,217 91,462
Greater Than 12 Months, Unrealized Losses 19,005 15,596
Total Fair Value 173,577 180,185
Total Unrealized Losses 19,302 22,410
Corporate Debt Securities [Member]    
Available-for-sale securities    
Less Than 12 Months, Fair Value 10,009 26,959
Less Than 12 Months, Unrealized Losses 215 878
Greater Than 12 Months, Fair Value 74,472 58,601
Greater Than 12 Months, Unrealized Losses 7,503 7,996
Total Fair Value 84,481 85,560
Total Unrealized Losses $ 7,718 $ 8,874