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STOCKHOLDERS' EQUITY - Additional Information (Detail) - USD ($) |  |  | 3 Months Ended | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Oct. 27, 2022 | Nov. 30, 2021 | Sep. 30, 2022 | Mar. 31, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021 | Apr. 27, 2022 | Dec. 31, 2021 | Apr. 26, 2021
Class Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Dividends declared per common share |  |  | $ 0.12 |  | $ 0.07 | $ 0.34 | $ 0.21 |  |  |
Preferred Stock Shares Authorized |  |  | 50,000,000 |  |  | 50,000,000 |  |  |  |
Preferred stock, par value |  |  | $ 1.00 |  |  | $ 1.00 |  |  |  |
Liquidation value per share, Preferred stock |  | $ 25 |  |  |  |  |  |  |  |
Treasury Stock Shares Acquired |  |  |  |  |  | 16,066,747 |  |  |  |
Treasury Stock Shares |  |  | 37,405,457 |  |  | 37,405,457 |  |  | 21,836,611 |
Legal surplus reserve rate |  |  |  |  |  | 10.00% |  |  |  |
Puerto Rico Banking Law Description |  |  |  |  |  | The Puerto Rico Banking Law provides that, when the expenditures of a Puerto Rico commercial bank are greater than receipts, the excess of the expenditures over receipts must be charged against the undistributed profits of the bank, and the balance, if any, must be charged against the legal surplus reserve, as a reduction thereof. If the legal surplus reserve is not sufficient to cover such balance in whole or in part, the outstanding amount must be charged against the capital account and the Bank cannot pay dividends until it can replenish the legal surplus reserve to an amount of at least 20% of the original capital contributed. |  |  |  |
Legal Surplus Amount Additions |  |  |  |  |  | $ 0 |  |  |  |
Stock Repurchase Program Authorized Amount 1 |  |  |  |  |  |  |  | $ 350,000,000 |  |
Preferred Stock Shares Outstanding |  |  | 0 |  |  | 0 |  |  |  |
Shares Paid For Tax Withholding For Share Based Compensation |  |  |  |  |  | 202,649 | 213,757 |  |  |
Cash dividends declared on preferred stock |  |  | $ 0 |  | $ 669,000 | $ 0 | $ 2,007,000 |  |  |
Cash dividends declared on common stock |  |  | 22,700,000 |  | $ 14,600,000 | $ 65,900,000 | $ 44,900,000 |  |  |
Restricted stock forfeited |  |  |  |  |  | 15,108 |  |  |  |
Difference between liquidation value and net carrying value |  | $ 1,200,000 |  |  |  |  |  |  |  |
Legal surplus amount |  |  | $ 137,600,000 |  |  | $ 137,600,000 |  |  | $ 137,600,000 |
Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Stock Redeemed Or Called During Period Shares |  | 1,444,146 |  |  |  |  |  |  |  |
New Stock Repurchase Program [Member] |  |  |  |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Treasury Stock Shares Acquired |  |  | 5,385,138 |  |  | 12,454,401 |  |  |  |
Common stock repurchased price per share |  |  | $ 13.93 |  |  | $ 14.05 |  |  |  |
Stock Repurchase Program Authorized Amount 1 |  |  |  |  |  |  |  | $ 350,000,000 |  |
Stock Repurchase Program Remaining Authorized Repurchase Amount 1 |  |  | $ 175,000,000 |  |  | $ 175,000,000 |  |  |  |
Common stock repurchases value |  |  | $ 75,000,000 |  |  | $ 175,000,000 |  |  |  |
Previous Stock Repurchase Program [Member] |  |  |  |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Treasury Stock Shares Acquired |  |  |  | 3,409,697 |  |  |  |  |  |
Common stock repurchased price per share |  |  |  | $ 14.66 |  |  |  |  |  |
Stock Repurchase Program Authorized Amount 1 |  |  |  |  |  |  |  |  |  | $ 300,000,000
Preferred Stock, Liquidation Preference, Value |  | $ 36,100,000 |  |  |  |  |  |  |  |
Common stock repurchases value |  |  |  | $ 50,000,000 |  |  |  |  |  |
Stock Repurchases Programs [Member] |  |  |  |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Treasury Stock Shares Acquired |  |  |  |  |  | 15,864,098 |  |  |  |
Common stock repurchases value |  |  |  |  |  | $ 225,000,000.0 |  |  |  |
Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Dividends declared per common share | $ 0.12 |  |  |  |  |  |  |  |  |
Dividend Payable Date To Be Paid Day Month And Year | Dec. 09, 2022 |  |  |  |  |  |  |  |  |
Dividends Payable Date Of Record Day Month And Year | Nov. 25, 2022 |  |  |  |  |  |  |  |  |
Dividends Payable Date Declared Day Month And Year | Oct. 27, 2022 |  |  |  |  |  |  |  |  |

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