Quarterly report pursuant to Section 13 or 15(d)

ACCOUNTING POLICIES (Narrative) (Details)

v3.20.2
ACCOUNTING POLICIES (Narrative) (Details)
$ in Thousands
9 Months Ended
Jun. 09, 2020
USD ($)
Feb. 01, 2019
USD ($)
shares
Sep. 30, 2020
USD ($)
item
loan
Sep. 30, 2019
USD ($)
Dec. 31, 2019
USD ($)
Accounting Policies [Line Items]          
Number of bank branches | item     135    
Number of ATM's | item     155    
Goodwill     $ 935,560   $ 935,560
Cash paid in acquisition     0 $ 12  
Issuance of preferred stock     173   $ 0
Net proceeds from issuance of preferred stock     166,356 $ 0  
Available-for-sale Securities          
Accounting Policies [Line Items]          
Accrued interest receivable     55,400    
Held-to-maturity Securities          
Accounting Policies [Line Items]          
Accrued interest receivable     5,100    
Access National Bank          
Accounting Policies [Line Items]          
Number of shares equivalent to each share of acquired entity | shares   0.75      
Company's common shares issued | shares   15,842,026      
Cash paid in acquisition   $ 12      
Paycheck Protection Program (PPP)          
Accounting Policies [Line Items]          
Total value of loans approved by SBA under the CARES Act     1,800,000    
Approved Loan Modification Under the Cares Act     769,600    
Loans issued under the CARES Act     1,700,000    
Loans, recorded investment under the CARES Act     1,600,000    
Loan origination fees Under the CARES Act     $ 32,600    
Paycheck Protection Program (PPP) | Minimum          
Accounting Policies [Line Items]          
Number of loans processed under the CARES Act | loan     11,000    
Series A Preferred Stock          
Accounting Policies [Line Items]          
Net proceeds from issuance of preferred stock $ 166,400