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SUBORDINATED DEBENTURES (Detailed information) (Detail) - USD ($)
$ in Thousands
Dec. 31, 2019
Nov. 05, 2019
Dec. 31, 2018
Dec. 31, 2003
Subordinated debentures [Line Items]:        
Subordinated Debt $ 209,406   $ 37,425  
Subordinated Debt [Member]        
Subordinated debentures [Line Items]:        
Subordinated Debt 200,000 $ 175,000 25,000  
Purchase accounting premium 1,894   2,023  
Debt issuance costs (2,885) $ (2,900) 0  
Trust preferred capital notes [Member]        
Subordinated debentures [Line Items]:        
Subordinated Debt 10,310   10,310 $ 10,300
Purchase accounting premium $ 87   $ 92