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Portfolio Loans - Summarize TDRs (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2021
USD ($)
contract
Dec. 31, 2020
USD ($)
contract
Dec. 31, 2019
USD ($)
contract
Financing Receivable, Impaired [Line Items]      
Number of Contracts | contract   8 4
Rate Modification      
Financing Receivable, Impaired [Line Items]      
Recorded Investment   $ 781 $ 527
Payment Modification      
Financing Receivable, Impaired [Line Items]      
Recorded Investment   $ 986  
Commercial      
Financing Receivable, Impaired [Line Items]      
Number of Contracts | contract 1 3 2
Commercial | Rate Modification      
Financing Receivable, Impaired [Line Items]      
Recorded Investment $ 364 $ 130 $ 342
Commercial real estate      
Financing Receivable, Impaired [Line Items]      
Number of Contracts | contract   1 1
Commercial real estate | Rate Modification      
Financing Receivable, Impaired [Line Items]      
Recorded Investment   $ 651  
Retail real estate      
Financing Receivable, Impaired [Line Items]      
Number of Contracts | contract   4 1
Retail real estate | Rate Modification      
Financing Receivable, Impaired [Line Items]      
Recorded Investment     $ 185
Retail real estate | Payment Modification      
Financing Receivable, Impaired [Line Items]      
Recorded Investment   $ 986