LOANS AND ALLOWANCE FOR LOAN LOSSES (Loans Receivables Related Risk Rating Excluding Purchased Impaired Loans) (Details) (Excluding Purchased Impaired [Member], USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	$ 3,555,761	$ 2,160,973
Commercial Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	299,121	213,675
Commercial Real Estate - Owner Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	828,905	500,764
Commercial Real Estate - Non-Owner Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	1,384,262	755,905
Raw Land and Lots [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	201,753	185,072
Single Family Investment Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	388,635	237,365
Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	375,971	215,702
Other Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	77,114	52,490
1-3 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	729,113	533,049
1-3 [Member] | Commercial Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	20,850	24,399
1-3 [Member] | Commercial Real Estate - Owner Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	174,759	149,632
1-3 [Member] | Commercial Real Estate - Non-Owner Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	294,645	224,702
1-3 [Member] | Raw Land and Lots [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	12,356	8,648
1-3 [Member] | Single Family Investment Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	62,225	38,327
1-3 [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	131,104	68,748
1-3 [Member] | Other Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	33,174	18,593
4 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	2,548,189	1,340,160
4 [Member] | Commercial Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	250,160	148,251
4 [Member] | Commercial Real Estate - Owner Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	609,379	324,394
4 [Member] | Commercial Real Estate - Non-Owner Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	1,004,064	453,279
4 [Member] | Raw Land and Lots [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	124,968	98,927
4 [Member] | Single Family Investment Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	299,539	168,564
4 [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	225,795	123,585
4 [Member] | Other Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	34,284	23,160
5 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	108,145	95,557
5 [Member] | Commercial Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	13,214	20,370
5 [Member] | Commercial Real Estate - Owner Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	16,544	10,017
5 [Member] | Commercial Real Estate - Non-Owner Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	40,097	21,953
5 [Member] | Raw Land and Lots [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	14,568	14,132
5 [Member] | Single Family Investment Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	9,874	12,302
5 [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	6,811	8,254
5 [Member] | Other Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	7,037	8,529
6 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	60,488	109,392
6 [Member] | Commercial Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	11,597	13,772
6 [Member] | Commercial Real Estate - Owner Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	18,255	10,926
6 [Member] | Commercial Real Estate - Non-Owner Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	13,246	46,084
6 [Member] | Raw Land and Lots [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	3,797	16,439
6 [Member] | Single Family Investment Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	7,175	11,522
6 [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	5,194	8,752
6 [Member] | Other Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	1,224	1,897
7 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	109,826	80,274
7 [Member] | Commercial Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	3,300	6,883
7 [Member] | Commercial Real Estate - Owner Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	9,968	5,795
7 [Member] | Commercial Real Estate - Non-Owner Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	32,210	9,887
7 [Member] | Raw Land and Lots [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	46,064	46,926
7 [Member] | Single Family Investment Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	9,822	6,650
7 [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	7,067	3,822
7 [Member] | Other Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating	1,395	311
8 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating		2,541
8 [Member] | Commercial Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating
8 [Member] | Commercial Real Estate - Owner Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating
8 [Member] | Commercial Real Estate - Non-Owner Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating
8 [Member] | Raw Land and Lots [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating
8 [Member] | Single Family Investment Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating
8 [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating		2,541
8 [Member] | Other Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivables related risk rating