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Premises and Equipment (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Property, Plant and Equipment [Line Items]      
Total cost $ 191,147 $ 174,967  
Less accumulated depreciation and amortization (55,055) (54,465)  
Total premises and equipment 136,092 120,502  
Depreciation 6,187 5,838 $ 5,836
Land      
Property, Plant and Equipment [Line Items]      
Total cost 45,398 38,584  
Buildings      
Property, Plant and Equipment [Line Items]      
Total cost 112,622 103,232  
Furniture and equipment      
Property, Plant and Equipment [Line Items]      
Total cost 31,099 30,097  
Leasehold improvements      
Property, Plant and Equipment [Line Items]      
Total cost $ 2,028 $ 3,054