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Loans and Investments - Charge-offs and Recoveries Narratives (Details) $ in Thousands | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2023 USD ($) loan | Mar. 31, 2022 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($)
Loans and Investments |  |  |  |
Interest income recognized on nonaccrual loans | $ 600 | $ 0 |  |
Allowance for credit losses | 153,077 | $ 116,382 | $ 132,559 | $ 113,241
Loans collateralized by a land development project |  |  |  |
Loans and Investments |  |  |  |
Allowance for credit losses | $ 71,400 |  | $ 71,400 |
Six loans collateralized by a land development project |  |  |  |
Loans and Investments |  |  |  |
Number of loans with unpaid principal balance | loan | 6 |  |  |
Unpaid principal balance on loans | $ 121,400 |  |  |
Five loans collateralized by a land development project |  |  |  |
Loans and Investments |  |  |  |
Number of loans with unpaid principal balance | loan | 5 |  |  |
Unpaid principal balance on loans | $ 112,000 |  |  |
Weighted average accrual rate of interest (as a percent) | 7.91% |  |  |

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