LOANS AND ALLOWANCE FOR LOAN LOSSES (Loans Stated at Face Amount, Net of Unearned Income) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013
Loans stated at face amount, net of unearned income
Loans, net of unearned income	$ 5,274,198	$ 3,039,368	$ 2,973,547
Commercial Construction [Member]
Loans stated at face amount, net of unearned income
Loans, net of unearned income	329,364	213,675
Commercial Real Estate - Owner Occupied [Member]
Loans stated at face amount, net of unearned income
Loans, net of unearned income	885,806	500,764
Commercial Real Estate - Non-Owner Occupied [Member]
Loans stated at face amount, net of unearned income
Loans, net of unearned income	1,457,825	755,905
Raw Land and Lots [Member]
Loans stated at face amount, net of unearned income
Loans, net of unearned income	233,207	187,529
Single Family Investment Real Estate [Member]
Loans stated at face amount, net of unearned income
Loans, net of unearned income	386,471	237,640
Commercial and Industrial [Member]
Loans stated at face amount, net of unearned income
Loans, net of unearned income	390,072	215,702
Other Commercial [Member]
Loans stated at face amount, net of unearned income
Loans, net of unearned income	80,790	52,490
Mortgage [Member]
Loans stated at face amount, net of unearned income
Loans, net of unearned income	510,539	237,414
Consumer Construction [Member]
Loans stated at face amount, net of unearned income
Loans, net of unearned income	45,855	48,984
Indirect Auto [Member]
Loans stated at face amount, net of unearned income
Loans, net of unearned income	175,913	174,843
Indirect Marine [Member]
Loans stated at face amount, net of unearned income
Loans, net of unearned income	41,037	38,633
HELOCs [Member]
Loans stated at face amount, net of unearned income
Loans, net of unearned income	496,592	281,579
Credit Card [Member]
Loans stated at face amount, net of unearned income
Loans, net of unearned income	22,316	23,211
Other Consumer [Member]
Loans stated at face amount, net of unearned income
Loans, net of unearned income	$ 218,411	$ 70,999