LOANS AND LEASES (Details 2) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012	Jun. 30, 2012
Summary of the carrying values of PCI loans
Non-covered loans and leases	$ 3,839,215	$ 3,049,505
Covered loans	581,404	543,327
Total gross loans and leases	4,420,619	3,592,832	3,487,301
Real estate mortgage
Summary of the carrying values of PCI loans
Non-covered loans and leases	2,495,364	1,917,670
Covered loans	537,238	504,900
Total gross loans and leases	3,032,602	2,422,570	1,850,162
Real estate construction
Summary of the carrying values of PCI loans
Non-covered loans and leases	187,193	129,959
Covered loans	26,542	24,645
Total gross loans and leases	213,735	154,604	129,107
Commercial
Summary of the carrying values of PCI loans
Non-covered loans and leases	898,973	787,775
Covered loans	14,096	13,184
Total gross loans and leases	913,069	800,959	707,566
Leases
Summary of the carrying values of PCI loans
Non-covered loans and leases	216,089	174,373
Total gross loans and leases	216,089	174,373	153,793
Consumer
Summary of the carrying values of PCI loans
Non-covered loans and leases	25,523	22,487
Covered loans	3,528	598
Total gross loans and leases	29,051	23,085	17,689
Foreign
Summary of the carrying values of PCI loans
Non-covered loans and leases	16,073	17,241
Total gross loans and leases	16,073	17,241	17,017
Non-PCI Loans and Leases
Summary of the carrying values of PCI loans
Non-covered loans and leases	3,819,576	3,049,505
Covered loans	106,654	25,442
Total gross loans and leases	3,926,230	3,074,947	2,875,334
Non-PCI Loans and Leases | Real estate mortgage
Summary of the carrying values of PCI loans
Non-covered loans and leases	2,477,066	1,917,670
Covered loans	81,124	20,843
Total gross loans and leases	2,558,190	1,938,513
Non-PCI Loans and Leases | Real estate construction
Summary of the carrying values of PCI loans
Non-covered loans and leases	185,888	129,959
Covered loans	11,888
Total gross loans and leases	197,776	129,959
Non-PCI Loans and Leases | Commercial
Summary of the carrying values of PCI loans
Non-covered loans and leases	898,973	787,775
Covered loans	10,536	4,113
Total gross loans and leases	909,509	791,888
Non-PCI Loans and Leases | Leases
Summary of the carrying values of PCI loans
Non-covered loans and leases	216,089	174,373
Total gross loans and leases	216,089	174,373
Non-PCI Loans and Leases | Consumer
Summary of the carrying values of PCI loans
Non-covered loans and leases	25,487	22,487
Covered loans	3,106	486
Total gross loans and leases	28,593	22,973
Non-PCI Loans and Leases | Foreign
Summary of the carrying values of PCI loans
Non-covered loans and leases	16,073	17,241
Total gross loans and leases	16,073	17,241
PCI Loans
Summary of the carrying values of PCI loans
Non-covered loans and leases	19,639
Covered loans	474,750	517,885
Total gross loans and leases	494,389	517,885	611,967
PCI Loans | Real estate mortgage
Summary of the carrying values of PCI loans
Non-covered loans and leases	18,298
Covered loans	456,114	484,057
Total gross loans and leases	474,412	484,057
PCI Loans | Real estate construction
Summary of the carrying values of PCI loans
Non-covered loans and leases	1,305
Covered loans	14,654	24,645
Total gross loans and leases	15,959	24,645
PCI Loans | Commercial
Summary of the carrying values of PCI loans
Covered loans	3,560	9,071
Total gross loans and leases	3,560	9,071
PCI Loans | Consumer
Summary of the carrying values of PCI loans
Non-covered loans and leases	36
Covered loans	422	112
Total gross loans and leases	$ 458	$ 112