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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, Net, by Type [Abstract]      
Premises and equipment, gross $ 127,154 $ 126,877  
Less accumulated depreciation and amortization (86,675) (84,876)  
Premises and equipment, net 40,479 42,001  
Depreciation and amortization of premises and equipment 3,200 3,500 $ 3,800
Land and Buildings [Member]      
Property, Plant and Equipment, Net, by Type [Abstract]      
Premises and equipment, gross 80,015 80,959  
Leasehold Improvements [Member]      
Property, Plant and Equipment, Net, by Type [Abstract]      
Premises and equipment, gross 4,829 4,805  
Furniture, Fixtures, and Equipment [Member]      
Property, Plant and Equipment, Net, by Type [Abstract]      
Premises and equipment, gross 40,835 40,615  
Construction in Progress [Member]      
Property, Plant and Equipment, Net, by Type [Abstract]      
Premises and equipment, gross $ 1,475 $ 498