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Premises and Equipment (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Premises and equipment      
Total premises and equipment $ 116,175 $ 118,665  
Accumulated depreciation and amortization (69,137) (69,292)  
Net premises and equipment 47,038 49,373  
Depreciation and amortization of properties and equipment 5,093 5,673 $ 5,786
Land      
Premises and equipment      
Total premises and equipment 15,500 15,505  
Buildings and improvements      
Premises and equipment      
Total premises and equipment 61,257 60,488  
Furniture and equipment      
Premises and equipment      
Total premises and equipment $ 39,418 $ 42,672