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
Jun. 30, 2022
Dec. 31, 2021
Available-for-sale securities    
Less Than 12 Months, Fair Value $ 441,908 $ 492,998
Less Than 12 Months, Unrealized Losses 35,317 7,105
Greater Than 12 Months, Fair Value 112,744 17,986
Greater Than 12 Months, Unrealized Losses 7,279 355
Total Fair Value 554,652 510,984
Total Unrealized Losses 42,596 7,460
Held-to-maturity, Debt Securities    
Less Than 12 Months, Fair Value 480,117 228,892
Less Than 12 Months, Unrealized Losses 27,770 2,721
Greater Than 12 Months, Fair Value 14,578 0
Greater Than 12 Months, Unrealized Losses 1,591 0
Total Fair Value 494,695 228,892
Total Unrealized Losses 29,361 2,721
U.S. Government Treasury [Member]    
Available-for-sale securities    
Less Than 12 Months, Fair Value 115,930 172,206
Less Than 12 Months, Unrealized Losses 7,757 2,606
Greater Than 12 Months, Fair Value 61,965 0
Greater Than 12 Months, Unrealized Losses 4,034 0
Total Fair Value 177,895 172,206
Total Unrealized Losses 11,791 2,606
Held-to-maturity, Debt Securities    
Less Than 12 Months, Fair Value 284,789 113,877
Less Than 12 Months, Unrealized Losses 13,375 1,622
Greater Than 12 Months, Fair Value 4,919 0
Greater Than 12 Months, Unrealized Losses 296 0
Total Fair Value 289,708 113,877
Total Unrealized Losses 13,671 1,622
U.S. Government Agency [Member]    
Available-for-sale securities    
Less Than 12 Months, Fair Value 129,675 127,484
Less Than 12 Months, Unrealized Losses 7,137 1,786
Greater Than 12 Months, Fair Value 43,349 17,986
Greater Than 12 Months, Unrealized Losses 2,451 355
Total Fair Value 173,024 145,470
Total Unrealized Losses 9,588 2,141
States and Political Subdivisions [Member]    
Available-for-sale securities    
Less Than 12 Months, Fair Value 40,323 42,122
Less Than 12 Months, Unrealized Losses 5,229 811
Greater Than 12 Months, Fair Value 437 0
Greater Than 12 Months, Unrealized Losses 40 0
Total Fair Value 40,760 42,122
Total Unrealized Losses 5,269 811
Mortgage-Backed Securities [Member]    
Available-for-sale securities    
Less Than 12 Months, Fair Value 73,829 81,832
Less Than 12 Months, Unrealized Losses 7,909 598
Greater Than 12 Months, Fair Value 3,801 0
Greater Than 12 Months, Unrealized Losses 446 0
Total Fair Value 77,630 81,832
Total Unrealized Losses 8,355 598
Held-to-maturity, Debt Securities    
Less Than 12 Months, Fair Value 195,328 115,015
Less Than 12 Months, Unrealized Losses 14,395 1,099
Greater Than 12 Months, Fair Value 9,659 0
Greater Than 12 Months, Unrealized Losses 1,295 0
Total Fair Value 204,987 115,015
Total Unrealized Losses 15,690 1,099
Corporate Debt Securities [Member]    
Available-for-sale securities    
Less Than 12 Months, Fair Value 82,151 69,354
Less Than 12 Months, Unrealized Losses 7,285 1,304
Greater Than 12 Months, Fair Value 3,192 0
Greater Than 12 Months, Unrealized Losses 308 0
Total Fair Value 85,343 69,354
Total Unrealized Losses $ 7,593 $ 1,304