STOCKHOLDERS' EQUITY - Additional Information (Detail) - USD ($)		3 Months Ended		12 Months Ended
	Apr. 25, 2024	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023	Jul. 24, 2023	Dec. 31, 2022
Class Of Stock [Line Items]
Dividends declared per common share		$ 0.16	$ 0.14
Preferred Stock Shares Authorized		50,000,000
Preferred stock, par value		$ 1.00
Treasury Stock Shares Acquired		3,142,589	3,865,375
Treasury Stock Shares		56,956,069	43,874,418	54,360,304		40,954,057
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
Legal Surplus Amount		$ 199,576,000		$ 199,576,000
Preferred Stock Shares Outstanding		0		0
Stock Issued During Period Shares Treasury Stock Reissued		548,729	970,429
Shares Paid For Tax Withholding For Share Based Compensation		136,038	287,835
Dividends paid on common stock		$ 26,900,000	$ 25,400,000
Common stock per share paid		$ 0.16	$ 0.14
Stock Repurchase Program Announced July 24, 2023 [Member]
Class Of Stock [Line Items]
Treasury Stock Shares Acquired				3,006,551
Common stock repurchased price per share				$ 16.63
Stock Repurchase Program Authorized Amount 1					$ 225,000,000
Stock Repurchase Program Remaining Authorized Repurchase Amount 1		$ 100,000,000.0
Common stock repurchase value				$ 50,000,000.0
Subsequent Event [Member]
Class Of Stock [Line Items]
Dividends declared per common share	$ 0.16
Dividend Payable Date To Be Paid Day Month And Year	Jun. 14, 2024
Dividends Payable Date Of Record Day Month And Year	May 30, 2024
Dividends Payable Date Declared Day Month And Year	Apr. 25, 2024