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Income Taxes - Narrative (Details)
 12 Months Ended
Dec. 31, 2020
USD ($)
state
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Income Tax Examination [Line Items]        
Amount recognized as a component of income tax expense related low-income housing tax credit $ 400,000 $ 300,000 $ 100,000  
Investments related to low-income housing tax credits 4,200,000 4,000,000.0    
Impairment losses recognized from forfeiture or ineligibility 0      
State valuation allowance 2,932,000 2,932,000    
Deferred Tax Assets, Net $ 29,804,000 14,379,000    
Number of states the company files income tax returns in | state 29      
Unrecognized tax benefits $ 3,157,000 1,497,000 1,301,000 $ 1,244,000
Unrecognized tax benefits that would impact effective tax rate 3,100,000 1,100,000 $ 900,000  
Reduction in unrecognized tax benefit that is reasonably possible due to a lapse of statute of limitations $ 300,000      
Duration of unrecognized tax benefits 12 months      
Income Tax Examination, Penalties and Interest Accrued $ 900,000      
Other Assets        
Income Tax Examination [Line Items]        
Deferred Tax Assets, Net $ 29,800,000 $ 14,400,000