Loans and Allowance for Credit Losses on Loans - Major Classifications - Loan Concentrations (Details) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
|
| Real estate | Loan receivables | Customer Concentration Risk | ||
| Loans | ||
| Loans receivable as a percentage of total portfolio | 71.60% | 72.50% |