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INVESTMENT SECURITIES - Summary of Investment Securities With Unrealized Losses (Detail)
$ in Thousands
Dec. 31, 2022
USD ($)
security
Dec. 31, 2021
USD ($)
security
Number of Securities    
Less Than 12 Months | security 63 37
12 Months or More | security 46 3
Total | security 109 40
Fair Value    
Less Than 12 Months $ 295,839 $ 190,192
12 Months or More 206,080 34,180
Total 501,919 224,372
Unrealized Losses    
Less Than 12 Months 20,185 3,693
12 Months or More 29,855 162
Total $ 50,040 $ 3,855
U.S. Treasury securities    
Number of Securities    
Less Than 12 Months | security 0 3
12 Months or More | security 3 0
Total | security 3 3
Fair Value    
Less Than 12 Months $ 0 $ 19,702
12 Months or More 17,291 0
Total 17,291 19,702
Unrealized Losses    
Less Than 12 Months 0 382
12 Months or More 2,779 0
Total $ 2,779 $ 382
States and political subdivisions    
Number of Securities    
Less Than 12 Months | security 29 12
12 Months or More | security 17 0
Total | security 46 12
Fair Value    
Less Than 12 Months $ 135,579 $ 45,522
12 Months or More 60,102 0
Total 195,681 45,522
Unrealized Losses    
Less Than 12 Months 13,809 673
12 Months or More 14,621 0
Total $ 28,430 $ 673
GSE residential MBSs    
Number of Securities    
Less Than 12 Months | security 5 9
12 Months or More | security 10 0
Total | security 15 9
Fair Value    
Less Than 12 Months $ 26,100 $ 37,899
12 Months or More 33,302 0
Total 59,402 37,899
Unrealized Losses    
Less Than 12 Months 925 578
12 Months or More 3,451 0
Total $ 4,376 $ 578
GSE residential CMOs    
Number of Securities    
Less Than 12 Months | security 8 7
12 Months or More | security 9 0
Total | security 17 7
Fair Value    
Less Than 12 Months $ 28,732 $ 41,163
12 Months or More 39,646 0
Total 68,378 41,163
Unrealized Losses    
Less Than 12 Months 1,884 944
12 Months or More 5,184 0
Total $ 7,068 $ 944
Non-agency CMOs    
Number of Securities    
Less Than 12 Months | security 4 3
12 Months or More | security 2 0
Total | security 6 3
Fair Value    
Less Than 12 Months $ 26,555 $ 24,661
12 Months or More 8,639 0
Total 35,194 24,661
Unrealized Losses    
Less Than 12 Months 1,135 978
12 Months or More 1,648 0
Total $ 2,783 $ 978
Asset-backed    
Number of Securities    
Less Than 12 Months | security 17 3
12 Months or More | security 5 3
Total | security 22 6
Fair Value    
Less Than 12 Months $ 78,873 $ 21,245
12 Months or More 47,100 34,180
Total 125,973 55,425
Unrealized Losses    
Less Than 12 Months 2,432 138
12 Months or More 2,172 162
Total $ 4,604 $ 300