FAIR VALUE - RECONCILIATION USING SIGNIFICANT UNOBSERVABLE INPUTS (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Assets measured on recurring basis, unobservable input reconciliation      
Balance, beginning of period $ 3,405    
Purchases   $ 3,405  
Balance, end of period   3,405  
Proceeds from Sale of Mortgage Loans Held-for-sale 214,760 167,209 $ 82,015
Private label mortgage backed security      
Assets measured on recurring basis, unobservable input reconciliation      
Balance, beginning of period 5,132 5,250 5,485
Net change in unrealized gain (loss) (9) (125) 475
Recovery of actual losses previously recorded   35 141
Principal paydowns (346) (28) (851)
Balance, end of period 4,777 5,132 $ 5,250
Trust preferred security      
Assets measured on recurring basis, unobservable input reconciliation      
Balance, beginning of period 3,405    
Net change in unrealized gain (loss) (205)    
Balance, end of period $ 3,200 $ 3,405