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FIRST BANCORP. (Holding Company Only) Financial Information - Statements of Financial Condition (Detail) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023 | Mar. 31, 2023
--- | --- | --- | ---
ASSETS |  |  |
Cash and due from banks | $ 680,734 | $ 661,925 | $ 822,542
Other assets | 258,457 | 229,215 |
Total assets | 18,890,961 | 18,909,549 |
Liabilities: |  |  |
Long-term borrowings | 161,700 | 161,700 |
Accounts payable and other liabilities | 204,033 | 194,255 |
Liabilities | 17,411,244 | 17,411,940 |
Stockholders Equity | 1,479,717 | 1,497,609 | $ 1,405,593
Total liabilities and stockholders' equity | 18,890,961 | 18,909,549 |
Holding Company [Member] |  |  |
ASSETS |  |  |
Cash and due from banks | 11,420 | 11,452 |
Other investment securities | 975 | 825 |
Dividends receivable | 709 | 713 |
Other assets | 679 | 476 |
Total assets | 1,648,172 | 1,663,864 |
Liabilities: |  |  |
Long-term borrowings | 161,700 | 161,700 |
Accounts payable and other liabilities | 6,755 | 4,555 |
Liabilities | 168,455 | 166,255 |
Stockholders Equity | 1,479,717 | 1,497,609 |
Total liabilities and stockholders' equity | 1,648,172 | 1,663,864 |
Holding Company [Member] | Investment In Banking Subsidiary [Member] |  |  |
ASSETS |  |  |
Investments | 1,608,030 | 1,627,172 |
Holding Company [Member] | Non Banking Subsidiary [Member] |  |  |
ASSETS |  |  |
Investments | 21,509 | 18,376 |
Holding Company [Member] | Statutory Trust One [Member] |  |  |
ASSETS |  |  |
Investments | 1,289 | 1,289 |
Holding Company [Member] | Statutory Trust Two [Member] |  |  |
ASSETS |  |  |
Investments | $ 3,561 | $ 3,561 |

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