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STOCKHOLDERS’ EQUITY (Narrative) (Details) - USD ($) | 3 Months Ended | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Jan. 31, 2024 | Dec. 31, 2023 | Jan. 31, 2022
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |
Common stock | $ 59,885,000 |  | $ 59,885,000 |  |  | $ 59,885,000 |
Legal surplus | 164,990,000 |  | 164,990,000 |  |  | 150,967,000 |
Transfer to legal surplus | $ 4,400,000 | $ 4,200,000 | $ 14,000,000.0 | $ 12,900,000 |  |  |
Shares repurchased during period (in shares) | 2,600 | 73,600 | 671,800 | 743,699 |  |  |
Common shares repurchased as part of the stock repurchase programs | $ 104,000 | $ 2,186,000 | $ 24,386,000 | $ 18,653,000 |  |  |
Share repurchased, average price per share (in dollars per share) |  |  | $ 36.30 |  |  |  |
Shares purchased (in shares) |  |  | 0 | 0 |  |  |
January 2022 Stock Repurchase Program |  |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |
Stock repurchase program, authorized amount |  |  |  |  |  |  | $ 100,000,000
Stock repurchase program, remaining authorized repurchase amount | 17,200,000 |  | $ 17,200,000 |  |  |  |
Shares repurchased during period (in shares) |  |  |  | 743,699 |  |  |
Common shares repurchased as part of the stock repurchase programs |  |  |  | $ 18,700,000 |  |  |
Share repurchased, average price per share (in dollars per share) |  |  |  | $ 25.08 |  |  |
January 2024 Stock Repurchase Program |  |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |
Stock repurchase program, authorized amount | 50,000,000.0 |  | 50,000,000.0 |  | $ 50,000,000 |  |
Stock repurchase program, remaining authorized repurchase amount | $ 25,600,000 |  | $ 25,600,000 |  |  |  |
Stock repurchase program, remaining number of shares authorized to be repurchased (in shares) | 570,223 |  | 570,223 |  |  |  |
Share price (in dollars per share) | $ 44.92 |  | $ 44.92 |  |  |  |
Common stock |  |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |
Accumulated common stock issuance costs charged against paid in capital | $ 13,600,000 |  | $ 13,600,000 |  |  | $ 13,600,000 |

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- Definition The total amount transferred during the period from retained earnings to the statutory reserve (legal surplus) as required by the Banking Act of the Commonwealth of Puerto Rico. The amount to be transferred should be a minimum of 10% of the bank's net income until the reserve account equals the total paid-in-capital on common and preferred stock. + References No definition available. + Details
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