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Description of Business, Basis of Presentation and Significant Accounting Policies and Recently Issued Accounting Pronouncements - Additional Information (Details)
 12 Months Ended
Dec. 31, 2022
USD ($)
branch
segment
Dec. 31, 2021
USD ($)
tranch
Dec. 31, 2020
USD ($)
Business Description and Basis of Presentation [Line Items]      
Total contractual lease payments $ 25,000    
Number of certified development entities | tranch   3  
Required funding percentage   85.00%  
Number of operating segments | segment 1    
Minimum | Building and Building Improvements      
Business Description and Basis of Presentation [Line Items]      
Useful lives 15 years    
Minimum | Furniture, fixtures and equipment      
Business Description and Basis of Presentation [Line Items]      
Useful lives 3 years    
Maximum | Building and Building Improvements      
Business Description and Basis of Presentation [Line Items]      
Useful lives 39 years    
Maximum | Furniture, fixtures and equipment      
Business Description and Basis of Presentation [Line Items]      
Useful lives 7 years    
Heritage Bank      
Business Description and Basis of Presentation [Line Items]      
Number of branches operating | branch 50    
Investment Tax Credit Carryforward | Subsidiaries      
Business Description and Basis of Presentation [Line Items]      
Qualified equity investments   $ 25,000,000 $ 9,800,000