LOANS AND ALLOWANCE FOR LOAN LOSSES (Purchased Impaired Commercial and Consumer Loan Portfolios by Class) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013	Dec. 31, 2012
Schedule of purchased impaired commercial and consumer loan portfolios, by class
Current	$ 5,035,622	$ 2,994,187
Total	131,107	3,622	3,973
Commercial Construction [Member]
Schedule of purchased impaired commercial and consumer loan portfolios, by class
Current	288,992	212,079
Total	5,446
Commercial Real Estate - Owner Occupied [Member]
Schedule of purchased impaired commercial and consumer loan portfolios, by class
Current	835,160	497,955
Total	31,619
Commercial Real Estate - Non-Owner Occupied [Member]
Schedule of purchased impaired commercial and consumer loan portfolios, by class
Current	1,411,204	753,507
Total	41,412
Raw Land and Lots [Member]
Schedule of purchased impaired commercial and consumer loan portfolios, by class
Current	196,668	181,045
Total	9,453	2,457
Single Family Investment Real Estate [Member]
Schedule of purchased impaired commercial and consumer loan portfolios, by class
Current	370,626	233,053
Total	19,661	275
Commercial and Industrial [Member]
Schedule of purchased impaired commercial and consumer loan portfolios, by class
Current	380,640	211,134
Total	4,944
Other Commercial [Member]
Schedule of purchased impaired commercial and consumer loan portfolios, by class
Current	77,086	52,226
Total	2,358
Indirect Auto [Member]
Schedule of purchased impaired commercial and consumer loan portfolios, by class
Current	183,351	171,998
Total		7
Mortgage [Member]
Schedule of purchased impaired commercial and consumer loan portfolios, by class
Current	468,929	225,649
Total	10,974
Consumer Construction [Member]
Schedule of purchased impaired commercial and consumer loan portfolios, by class
Current	75,074	48,776
Total	533
HELOCs [Member]
Schedule of purchased impaired commercial and consumer loan portfolios, by class
Current	488,491	277,013
Total	2,847	787
Other Consumer [Member]
Schedule of purchased impaired commercial and consumer loan portfolios, by class
Current	196,679	69,174
Total	1,860	96
Purchased Impaired [Member]
Schedule of purchased impaired commercial and consumer loan portfolios, by class
30-89 Days Past Due	11,971	40
Greater than 90 Days	12,585	31
Current	106,551	3,551
Total	131,107	3,622	3,973	4,565
Purchased Impaired [Member] | Commercial Construction [Member]
Schedule of purchased impaired commercial and consumer loan portfolios, by class
30-89 Days Past Due	72
Greater than 90 Days	692
Current	4,682
Total	5,446
Purchased Impaired [Member] | Commercial Real Estate - Owner Occupied [Member]
Schedule of purchased impaired commercial and consumer loan portfolios, by class
30-89 Days Past Due	1,694
Greater than 90 Days	984
Current	28,941
Total	31,619
Purchased Impaired [Member] | Commercial Real Estate - Non-Owner Occupied [Member]
Schedule of purchased impaired commercial and consumer loan portfolios, by class
30-89 Days Past Due	4,079
Greater than 90 Days	2,404
Current	34,929
Total	41,412
Purchased Impaired [Member] | Raw Land and Lots [Member]
Schedule of purchased impaired commercial and consumer loan portfolios, by class
30-89 Days Past Due	478
Greater than 90 Days	158
Current	8,817	2,457
Total	9,453	2,457
Purchased Impaired [Member] | Single Family Investment Real Estate [Member]
Schedule of purchased impaired commercial and consumer loan portfolios, by class
30-89 Days Past Due	968
Greater than 90 Days	1,537
Current	17,156	275
Total	19,661	275
Purchased Impaired [Member] | Commercial and Industrial [Member]
Schedule of purchased impaired commercial and consumer loan portfolios, by class
30-89 Days Past Due	418
Greater than 90 Days	373
Current	4,153
Total	4,944
Purchased Impaired [Member] | Other Commercial [Member]
Schedule of purchased impaired commercial and consumer loan portfolios, by class
30-89 Days Past Due	434
Greater than 90 Days	772
Current	1,152
Total	2,358
Purchased Impaired [Member] | Indirect Auto [Member]
Schedule of purchased impaired commercial and consumer loan portfolios, by class
30-89 Days Past Due
Greater than 90 Days
Current		7
Total		7
Purchased Impaired [Member] | Mortgage [Member]
Schedule of purchased impaired commercial and consumer loan portfolios, by class
30-89 Days Past Due	3,475
Greater than 90 Days	4,061
Current	3,438
Total	10,974
Purchased Impaired [Member] | Consumer Construction [Member]
Schedule of purchased impaired commercial and consumer loan portfolios, by class
30-89 Days Past Due
Greater than 90 Days	533
Total	533
Purchased Impaired [Member] | HELOCs [Member]
Schedule of purchased impaired commercial and consumer loan portfolios, by class
30-89 Days Past Due	285
Greater than 90 Days	767	31
Current	1,795	756
Total	2,847	787
Purchased Impaired [Member] | Other Consumer [Member]
Schedule of purchased impaired commercial and consumer loan portfolios, by class
30-89 Days Past Due	68	40
Greater than 90 Days	304
Current	1,488	56
Total	$ 1,860	$ 96