ACL for Loans - Prior Period Additional Information (Details) - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Financing Receivable, Allowance for Credit Loss [Line Items]        
Adversely classified loans to total loans   1.79%    
Non-accrual Loans $ 26,522,000 $ 38,050,000    
The ratio of non-accrual loans to total loans 0.91% 1.24%    
Total Recorded Investment in Impaired Loans $ 34,640,000 $ 48,318,000    
Interest income that was not recognized on loans that were deem impaired 1,400,000 1,400,000 $ 1,000,000  
Total non accruing impaired loans 26,200,000 10,300,000    
Impaired non-accrual loans   38,000,000    
Total Troubled Debt Restructure (TDR) loans 16,400,000 17,700,000    
TDR loans on accrual status 8,600,000 10,300,000    
TDR loans included in non-performing loans 7,800,000 7,500,000    
Charge-offs associated with new TDRs 0 1,100,000    
Allowance for credit losses 47,704,000 $ 44,565,000 $ 33,614,000 $ 33,849,000
Allowance for loan losses to total loans ratio   1.45%    
Pass        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Non-accrual Loans $ 3,000 $ 137,000