Annual report pursuant to Section 13 and 15(d)

ACQUISITIONS (Outstanding Principal Balance and Carrying Amount of Acquired Impaired Loans) (Details)

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ACQUISITIONS (Outstanding Principal Balance and Carrying Amount of Acquired Impaired Loans) (Details) - Purchased Impaired [Member] - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Jan. 01, 2014
Business Acquisition [Line Items]      
Total $ 73,737 $ 105,788  
StellarOne Bank [Member]      
Business Acquisition [Line Items]      
Contractually required principal and interest payments     $ 214,803
Nonaccretable difference     (34,696)
Cash flows expected to be collected     180,107
Accretable difference     (34,653)
Total     $ 145,454