Annual report pursuant to Section 13 and 15(d)

MORTGAGE BANKING ACTIVITIES - Summary of mortgage servicing rights (Details)

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MORTGAGE BANKING ACTIVITIES - Summary of mortgage servicing rights (Details) - Residential Mortgage [Member]
$ in Thousands
12 Months Ended
Dec. 31, 2021
USD ($)
LoanContracts
Dec. 31, 2020
USD ($)
LoanContracts
Servicing Assets at Fair Value [Line Items]    
Number of Residential Mortgage Loans Serviced for Others | LoanContracts 2,106 1,796
Outstanding Principal Balance of Residential Mortgage Loans Serviced for Others | $ $ 532,967 $ 456,135
Weighted Average Interest Rate 3.59% 3.64%
Remaining contractual term (in months) 317 months 321 months