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Summary of Significant Accounting Policies - Corporate Premises and Equipment (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Premises and equipment      
Depreciation $ 3,290 $ 3,740 $ 4,110
Buildings | Minimum      
Premises and equipment      
Property, Plant and Equipment, Useful Life 10 years    
Buildings | Maximum      
Premises and equipment      
Property, Plant and Equipment, Useful Life 40 years    
Equipment, furniture and fixtures | Minimum      
Premises and equipment      
Property, Plant and Equipment, Useful Life 3 years    
Equipment, furniture and fixtures | Maximum      
Premises and equipment      
Property, Plant and Equipment, Useful Life 10 years