REVENUE FROM CONTRACTS WITH CUSTOMERS - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Revenue from External Customer [Line Items]
Contract With Customer Liability	$ 1,443	$ 2,151	$ 2,476	$ 2,071
Revenues	851,093	711,548	657,653
Decrease in Contract with Customer, Liability	(700)	(300)	(300)
Additions To Contract Liability	$ 0	0	730
Required Visa Debit Portfolio Ratio	50.00%
Other non-interest income	$ 48,937	41,834	39,909
Insurance commissions [Member]
Revenue from External Customer [Line Items]
Revenues	$ 3,300	3,300	$ 3,000
Other non-interest income		5,000
Revenue Sharing [Member]
Revenue from External Customer [Line Items]
Term of contract liability	10 years
Credit Card [Member]
Revenue from External Customer [Line Items]
Revenues	$ 400
Evertec - 2015 Contract Liability [Member]
Revenue from External Customer [Line Items]
Contract With Customer Liability	$ 1,100	$ 1,400