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Loans and Allowance for Credit Losses (Loans by Class of Loan Portfolio) (Details) $ in Thousands | Sep. 30, 2023 USD ($) | Jul. 01, 2023 USD ($) | Jun. 30, 2023 USD ($) | Dec. 31, 2022 USD ($) | Sep. 30, 2022 USD ($) | Jun. 30, 2022 USD ($) | Dec. 31, 2021 USD ($)
--- | --- | --- | --- | --- | --- | --- | ---
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |  |
Loans | $ 4,617,719 |  |  | $ 2,556,107 |  |  |
% of Total Loans | 1.0000 |  |  | 1.0000 |  |  |
Less: allowance for credit losses | $ (57,051) | $ (36,361) | $ (29,014) | $ (16,643) | $ (16,277) | $ (15,483) | $ (13,944)
Loans, net | 4,560,668 |  |  | 2,539,464 |  |  |
Construction |  |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |  |
Loans | $ 328,750 |  |  | $ 246,319 |  |  |
% of Total Loans | 0.0712 |  |  | 0.0964 |  |  |
Less: allowance for credit losses | $ (3,831) | (2,419) | (2,386) | $ (2,973) | (3,032) | (3,345) | (2,454)
Residential real estate |  |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |  |
Loans | $ 1,439,464 |  |  | $ 810,497 |  |  |
% of Total Loans | 0.3117 |  |  | 0.3171 |  |  |
Less: allowance for credit losses | $ (19,175) | (13,167) | (9,151) | $ (2,622) | (3,008) | (2,778) | (2,858)
Commercial real estate |  |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |  |
Loans | $ 2,283,521 |  |  | $ 1,065,409 |  |  |
% of Total Loans | 0.4945 |  |  | 0.4168 |  |  |
Less: allowance for credit losses | $ (22,800) | (11,332) | (10,267) | $ (4,899) | (5,009) | (4,441) | (4,598)
Commercial |  |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |  |
Loans | $ 229,474 |  |  | $ 147,856 |  |  |
% of Total Loans | 0.0497 |  |  | 0.0578 |  |  |
Less: allowance for credit losses | $ (4,337) | (2,398) | (1,956) | $ (1,652) | (1,907) | (1,681) | (2,070)
Consumer |  |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |  |
Loans | $ 330,411 |  |  | $ 286,026 |  |  |
% of Total Loans | 0.0716 |  |  | 0.1119 |  |  |
Less: allowance for credit losses | $ (6,856) | $ (7,045) | (5,254) | $ (4,497) | $ (3,321) | $ (3,238) | $ (1,964)
Credit Cards |  |  |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |  |  |
Loans | $ 6,099 |  |  | $ 0 |  |  |
% of Total Loans | 0.0013 |  |  | 0 |  |  |
Less: allowance for credit losses | $ (52) |  | $ 0 | $ 0 |  |  |

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