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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