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v3.22.1

Loans - Narrative (Details) | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2022 USD ($) loan | Mar. 31, 2021 loan | Dec. 31, 2021 USD ($) loan | Dec. 31, 2020 USD ($) loan
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Purchase credit deteriorated loans | $ 3,607,374,000 |  | $ 2,967,247,000 |
Interest income on non-accrual loans | 20,000 |  | 80,000 |
Troubled debt restructurings | 102,000 |  | 104,000 |
Allowance for troubled debt restructurings | 0 |  | 0 |
Additional lending amount to customers whose loan terms has been modified in troubled debt restructuring | $ 0 |  | 0 |
Number of loans modified as troubled debt restructurings | loan | 0 | 0 |  |
Number of loans modified as troubled debt restructuring subsequently defaulted | loan | 0 | 0 |  |
Threshold amount to individually classify loans by credit risk | $ 250,000 |  |  |
PCD Loans |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Purchase credit deteriorated loans | $ 37,895,000 |  | $ 9,861,000 |
Commercial Real Estate Loans |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Number of commercial real estate loans | loan | 1 |  | 1 |
Principal amount of commercial real estate loan | $ 3,500,000 |  | $ 3,500,000 |
PPP |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loan interest rate | 1.00% |  |  |
Maturities of loans originated under first round (in years) | 2 years |  |  |
Maturities of loans originated under second round (in years) | 5 years |  |  |
Loans outstanding originated under first round |  |  |  | $ 351,260,000
Fees on loans originated under first round |  |  |  | $ 12,024,000
Number of loans originated under first round | loan |  |  |  | 3,070
Forgiven loans originated under first round | $ 350,529,000 |  |  |
Net processing fees recognized on loans originated under first round | 12,022,000 |  |  |
Loans outstanding originated under second round |  |  | 157,042,000 |
Fees on loans originated during second round |  |  | $ 9,022,000 |
Number of loans originated under second round | loan |  |  | 2,601 |
Forgiven loans originated during second round | 150,850,000 |  |  |
Net processing fees recognized on loans originated under second round | 8,713,000 |  |  |
Loans outstanding | 6,923,000 |  |  |
Remaining fees on loans outstanding | $ 311,000 |  |  |

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