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RELATED PARTY TRANSACTIONS (Details) - USD ($)
Dec. 31, 2021
Dec. 31, 2020
Related party transactions    
Deposits of related parties $ 3,738,185,000 $ 3,130,534,000
Related parties    
Related party transactions    
Loans to related parties 2,633,000 3,072,000
Deposits of related parties $ 4,023,000 $ 2,596,000