INCOME TAXES (Details 3) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Deferred Tax Assets:
Book allowance for loan losses in excess of tax specific charge-offs	$ 45,840	$ 31,602
Interest on nonaccrual loans	444	473
Deferred compensation	4,541	3,727
Premises and equipment, principally due to differences in depreciation	3,643	2,457
OREO valuation allowance	9,784	7,398
Assets acquired in FDIC-assisted acquisition	16,375	19,170
State tax benefit	2,368	247
Accrued liabilities	16,629	10,126
Other	7,846	10,934
Goodwill	6,595	3,846
Deferred loan fees and costs	378
Unrealized loss on securities available-for-sale	2,424
Gross deferred tax assets	116,867	89,980
Deferred Tax Liabilities:
Core deposit and customer relationship intangibles	6,022	5,004
Deferred loan fees and costs		296
Unrealized gain on securities available-for-sale		23,824
FHLB stock and dividends	7,123	7,557
Unrealized income from FDIC-assisted acquisition	24,086	23,614
Gross deferred tax liabilities	37,231	60,295
Total net deferred tax asset	79,636	29,685
Unrecognized net tax benefit	$ 0	$ 0	$ 0