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Secondary Market Mortgage Activities - Summary of Secondary Market Mortgage Activities (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Mortgage Banking [Abstract]      
Loans originated for resale $ 95,411 $ 87,528 $ 43,458
Proceeds from sales of loans held for sale 97,179 82,619 43,198
Net gains on sales of loans held for sale 2,737 2,961 990
Loan servicing fees $ 720 $ 726 $ 634