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Loans - Narrative (Details) | 3 Months Ended | 6 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Jun. 30, 2022 USD ($) loan | Jun. 30, 2021 loan | Jun. 30, 2022 USD ($) loan | Jun. 30, 2021 loan | Dec. 31, 2021 USD ($) loan | Dec. 31, 2020 USD ($) loan
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Purchase credit deteriorated loans | $ 3,604,338,000 |  | $ 3,604,338,000 |  | $ 2,967,247,000 |
Interest income on non-accrual loans | 7,000 |  | 27,000 |  | 80,000 |
Troubled debt restructurings | 0 |  | 0 |  | 104,000 |
Allowance for troubled debt restructurings | 0 |  | 0 |  | 0 |
Additional lending amount to customers whose loan terms has been modified in troubled debt restructuring | $ 0 |  | $ 0 |  | 0 |
Number of loans modified as troubled debt restructurings | loan | 0 | 0 | 0 | 0 |  |
Number of loans modified as troubled debt restructuring subsequently defaulted | loan | 0 | 0 | 0 | 0 |  |
Threshold amount to individually classify loans by credit risk | $ 250,000 |  | $ 250,000 |  |  |
PCD Loans |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Purchase credit deteriorated loans | 34,929,000 |  | $ 34,929,000 |  | 9,861,000 |
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 | 351,260,000 |  | $ 351,260,000 |  |  |
Net processing fees recognized on loans originated under first round |  |  | 12,024,000 |  |  |
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 | 156,398,000 |  | 156,398,000 |  |  |
Net processing fees recognized on loans originated under second round |  |  | 8,976,000 |  |  |
Loans outstanding | 644,000 |  | 644,000 |  |  |
Remaining fees on loans outstanding | $ 46,000 |  | $ 46,000 |  |  |

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