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Commitments, Contingencies and Concentrations of Credit Risk (Tables)
12 Months Ended
Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]  
Summary of Commitments and Contingent Liabilities
At December 31, 2021, the following commitments and contingent liabilities existed which are not reflected in the accompanying consolidated financial statements (in thousands):
December 31, 2021
Unused consumer and residential construction loan lines of credit (primarily floating-rate)$358,586 
Unused commercial and commercial construction loan lines of credit (primarily floating-rate)1,011,233 
Other commitments to extend credit:
Fixed-rate350,114 
Adjustable-rate1,770 
Floating-rate319,134