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LONG-TERM DEBT - Narrative (Detail)
Dec. 31, 2022
USD ($)
bank
Dec. 31, 2021
USD ($)
Line of Credit Facility [Line Items]    
Collateral for all outstanding loans $ 1,000,000,000  
Additional availability at the FHLB based on qualifying collateral 909,600,000  
Letters of credit 1,000,000  
Letters of credit non-deposit 1,200,000  
Available unsecured lines of credit $ 30,000,000  
Number of correspondent banks | bank 2  
Borrowings under lines of credit $ 0 $ 0
FHLB fixed rate advances maturing    
Line of Credit Facility [Line Items]    
New long term borrowings 0 0
Line of Credit | Federal Home Loan Bank Program    
Line of Credit Facility [Line Items]    
Available unsecured lines of credit $ 45,300,000 $ 150,000,000