LOANS (covered) - Carrying Value of Purchased Impaired and Nonimpaired Loans (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Covered	$ 518,524	$ 748,116
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Covered	52,276	102,126
Real estate-construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Covered	8,692	10,631
Real estate-commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Covered	312,798	465,555
Real estate - residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Covered	84,418	100,694
Installment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Covered	6,135	8,674
Home equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Covered	51,692	57,458
Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Covered	2,513	2,978
Loans Accounted for Under FASB ASC Topic 310-30
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Covered	457,093	674,157
Loans Accounted for Under FASB ASC Topic 310-30 | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Covered	51,077	94,775
Loans Accounted for Under FASB ASC Topic 310-30 | Real estate-construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Covered	8,692	10,631
Loans Accounted for Under FASB ASC Topic 310-30 | Real estate-commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Covered	306,345	458,066
Loans Accounted for Under FASB ASC Topic 310-30 | Real estate - residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Covered	84,418	100,694
Loans Accounted for Under FASB ASC Topic 310-30 | Installment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Covered	5,552	7,911
Loans Accounted for Under FASB ASC Topic 310-30 | Home equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Covered	1,009	2,080
Loans Accounted for Under FASB ASC Topic 310-30 | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Covered	0	0
Loans Excluded from FASB ASC Topic 310-30
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Covered	61,431	73,959
Loans Excluded from FASB ASC Topic 310-30 | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Covered	1,199	7,351
Loans Excluded from FASB ASC Topic 310-30 | Real estate-construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Covered	0	0
Loans Excluded from FASB ASC Topic 310-30 | Real estate-commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Covered	6,453	7,489
Loans Excluded from FASB ASC Topic 310-30 | Real estate - residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Covered	0	0
Loans Excluded from FASB ASC Topic 310-30 | Installment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Covered	583	763
Loans Excluded from FASB ASC Topic 310-30 | Home equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Covered	50,683	55,378
Loans Excluded from FASB ASC Topic 310-30 | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Covered	$ 2,513	$ 2,978