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CREDIT QUALITY ASSESSMENT - Collateral Dependent Loans (Detail) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Mar. 31, 2020
Dec. 31, 2019
Credit Loss [Abstract]        
Collateral dependent loans individually evaluated for credit loss with an allowance $ 32,241 $ 20,717    
Collateral dependent loans individually evaluated for credit loss without an allowance 49,757 77,001    
Total individually evaluated collateral dependent loans 81,998 97,718    
Allowance for credit losses related to loans evaluated individually 13,101 11,405    
Allowance for credit losses related to loans evaluated collectively 117,260 153,962    
Total allowance for credit losses $ 130,361 $ 165,367 $ 85,800 $ 56,132