Quarterly report pursuant to Section 13 or 15(d)

BORROWINGS (Narrative) (Details)

v3.19.3
BORROWINGS (Narrative) (Details) - USD ($)
$ in Thousands
 9 Months Ended
Aug. 29, 2019
Feb. 01, 2019
Aug. 23, 2012
Sep. 30, 2019
Dec. 31, 2018
Jan. 01, 2018
Dec. 31, 2016
Subordinated Borrowing [Line Items]              
Remaining available balance for the federal funds lines       $ 647,000 $ 382,000    
Remaining available balance of alternate line of credit       25,000 25,000    
Maximum collateral dependent line of credit with the FHLB       5,100,000 4,000,000    
Subordinated debt       158,500     $ 150,000
Prepayment penalty     $ 19,600        
Unamortized prepayment penalty $ 7,400            
Trust Preferred Capital Notes              
Subordinated Borrowing [Line Items]              
Trust preferred capital notes principal balance       150,500      
Remaining fair value discount on acquired notes       15,100      
Subordinated Debt              
Subordinated Borrowing [Line Items]              
Remaining fair value discount on acquired notes       $ 1,400 $ 1,600    
Fixed interest rate on debt instrument             5.00%
Maturity Date       Dec. 15, 2026      
Subordinated Debt | LIBOR              
Subordinated Borrowing [Line Items]              
Spread on LIBOR       3.175%      
Acquisitions, Prior To 2006              
Subordinated Borrowing [Line Items]              
Trust preferred capital notes principal balance       $ 58,500      
Stellarone and Xenith | Trust Preferred Capital Notes              
Subordinated Borrowing [Line Items]              
Trust preferred capital notes principal balance       87,000      
Access National Bank              
Subordinated Borrowing [Line Items]              
Trust preferred capital notes principal balance   $ 5,000          
Xenith              
Subordinated Borrowing [Line Items]              
Subordinated debt           $ 8,500  
Xenith | Subordinated Debt              
Subordinated Borrowing [Line Items]              
Remaining fair value discount on acquired notes       $ 77   $ 259  
Fixed interest rate on debt instrument           6.75%