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Adoption of Accounting Standards - Reserve for Unfunded Commitments (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Jan. 31, 2023 | Jan. 01, 2023 | Dec. 31, 2022 | Mar. 31, 2022 | Dec. 31, 2021
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New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value) | $ 2,668,681 |  |  | $ 14,922 |  |
Less: allowance for credit losses | (28,464) |  |  | (16,643) | $ (14,710) | $ (13,944)
Loans, net | $ 2,640,217 |  |  |  |  |
Loan Risk Rating |  |  |  | 2,556,107 |  |
Allowance for credit losses |  |  |  | (16,643) |  |
Loans, net |  |  |  | 2,539,464 |  |
Reserve for Unfunded Commitments |  |  |  | 316 |  |
Cumulative Effect, Period of Adoption, Adjusted Balance | Accounting Standards Update 2016-13 |  |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value) |  | $ 2,556,267 |  |  |  |
Less: allowance for credit losses |  | (27,434) |  |  |  |
Loans, net |  | 2,528,833 |  |  |  |
Reserve for Unfunded Commitments |  | $ 581 |  |  |  |
Cumulative Effect, Period of Adoption, Adjustment |  |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |
Less: allowance for credit losses |  |  |  | $ (10,791) |  |
Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2016-13 |  |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |
Loans held for investment ($9,526 (2023) and $8,437 (2022), at fair value) |  |  | $ 160 |  |  |
Less: allowance for credit losses |  |  | (10,791) |  |  |
Loans, net |  |  | (10,631) |  |  |
Reserve for Unfunded Commitments |  |  | $ 265 |  |  |

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