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Parent Company Only Condensed Financial Statements - Condensed Balance Sheets (Details) - USD ($) $ in Thousands | Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | --- | --- | ---
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Total assets | $ 17,300,884 | $ 15,596,431 |  |
Subordinated Debt | 93,688 | 156,551 |  |
Equity, Attributable to Parent | 2,039,386 | 1,824,002 | $ 1,716,068 | $ 1,522,263
Total liabilities and shareholders' equity | 17,300,884 | 15,596,431 |  |
Parent [Member] |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Cash and Cash Equivalent | 145,359 | 123,956 | $ 100,418 | $ 99,018
Other Assets | 28,295 | 26,664 |  |
Total assets | 2,194,291 | 1,983,887 |  |
Subordinated Debt | 93,688 | 156,551 |  |
Notes Payable to Bank | 58,732 | 0 |  |
Accounts Payable and Accrued Liabilities | 2,485 | 3,334 |  |
Equity, Attributable to Parent | 2,039,386 | 1,824,002 |  |
Total liabilities and shareholders' equity | 2,194,291 | 1,983,887 |  |
Enterprise Bank and Trust [Member] | Parent [Member] |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Investments | 2,006,842 | 1,824,550 |  |
Nonbank Subsidiaries [Member] | Parent [Member] |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Investments | $ 13,795 | $ 8,717 |  |

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