Quarterly report pursuant to Section 13 or 15(d)

BORROWINGS (Narrative) (Details)

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BORROWINGS (Narrative) (Details) (USD $)
 3 Months Ended 6 Months Ended 6 Months Ended 1 Months Ended 5 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Dec. 31, 2013
Jun. 30, 2014
Acquisitions, Prior To 2006 [Member]
Jun. 30, 2014
LIBOR [Member]
May 31, 2014
LIBOR [Member]
Jun. 30, 2014
LIBOR [Member]
Acquisitions, Prior To 2006 [Member]
Jun. 30, 2014
StellarOne Bank [Member]
Remaining available balance for the federal funds lines $ 90,000,000   $ 90,000,000   $ 93,500,000          
Securities pledged as collateral for FHLB advances 1,500,000,000   1,500,000,000   805,200,000          
Trust preferred capital notes principal balance           58,500,000       32,000,000
Remaining fair value discount on acquired trust preferred capital notes                   7,300,000
Remaining fair value discount on subordinated debt           897,000        
Subordinated debt interest rate basis           LIBOR plus 1.45%        
LIBOR rate plus 1.5%             1.50% 1.50% 1.45%  
Subordinated debt maturity date           Apr. 01, 2016        
Subordinated debt           17,500,000        
Prepayment penalty     19,600,000              
Loans from Other Federal Home Loan Banks                   70,000,000
Remaining fair value premium on acquired FHLB advances                   2,600,000
Prepayment penalty amortization expense 444,000 433,000 881,000 859,000            
Collateral dependent line of credit with the FHLB $ 1,500,000,000   $ 1,500,000,000   $ 1,100,000,000