STOCKHOLDERS' EQUITY - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands			12 Months Ended
	Feb. 08, 2024	Nov. 30, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Jul. 24, 2023	Apr. 27, 2022	Dec. 31, 2020
Class Of Stock [Line Items]
Dividends declared per common share			$ 0.56	$ 0.46	$ 0.31
Preferred Stock Shares Authorized			50,000,000
Preferred stock, par value			$ 1.00
Treasury Stock Shares Acquired			14,340,453	19,619,178	16,954,841
Treasury Stock Shares			54,360,304	40,954,057	21,836,611			4,799,284
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			$ 31,100	$ 30,900	$ 28,300
Legal Surplus Amount			$ 199,576	$ 168,484
Preferred Stock Shares Outstanding			0	0
Stock Issued During Period Shares Treasury Stock Reissued			997,339	516,840	0
Shares Paid For Tax Withholding For Share Based Compensation			289,623	205,807	214,374
Dividends paid on preferred stock					$ 2,500
Dividends paid on common stock			$ 99,600	$ 88,200	65,400
Preferred Stock Redemption Premium			$ 0	$ 0	$ 1,234
Common stock per share paid			$ 0.56	$ 0.46	$ 0.31
Preferred Stock [Member]
Class Of Stock [Line Items]
Liquidation value per share, Preferred stock		$ 25
Preferred Stock, Liquidation Preference, Value		$ 36,100
Stock Redeemed Or Called During Period Shares		1,444,146
Preferred Stock Redemption Premium		$ 1,200
New Stock Repurchase Program [Member]
Class Of Stock [Line Items]
Treasury Stock Shares Acquired			14,050,830
Common stock repurchased price per share			$ 14.23
Stock Repurchase Program Authorized Amount 1							$ 350,000
Common stock repurchase value			$ 200,000
Stock Repurchase Program Announced July 24, 2023 [Member]
Class Of Stock [Line Items]
Treasury Stock Shares Acquired			5,080,832
Common stock repurchased price per share			$ 14.76
Stock Repurchase Program Authorized Amount 1						$ 225,000
Stock Repurchase Program Remaining Authorized Repurchase Amount 1			$ 150,000
Common stock repurchase value			$ 75,000
Subsequent Event [Member]
Class Of Stock [Line Items]
Dividends declared per common share	$ 0.16
Increase Decease Dividends Per Share Declared Percent	14.00%
Increase in dividends per share declared	$ 0.02
Dividend Payable Date To Be Paid Day Month And Year	Mar. 08, 2024
Dividends Payable Date Of Record Day Month And Year	Feb. 23, 2024
Dividends Payable Date Declared Day Month And Year	Feb. 08, 2024
Common Stock, Average Price One [Member] | New Stock Repurchase Program [Member]
Class Of Stock [Line Items]
Treasury Stock Shares Acquired			8,969,998
Common stock repurchased price per share			$ 13.94
Common stock repurchase value			$ 125,000