LOANS AND LEASES (Details 10) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013
Credit risk rating categories for PCI loans by portfolio segment
Total gross loans and leases	$ 4,161,085	$ 4,313,335	$ 3,470,687
Real estate mortgage
Credit risk rating categories for PCI loans by portfolio segment
Total gross loans and leases	2,642,104	2,795,998
Real estate construction
Credit risk rating categories for PCI loans by portfolio segment
Total gross loans and leases	249,919	219,517
Commercial
Credit risk rating categories for PCI loans by portfolio segment
Total gross loans and leases	952,279	972,981
Consumer
Credit risk rating categories for PCI loans by portfolio segment
Total gross loans and leases	67,047	55,070
PCI Loans
Credit risk rating categories for PCI loans by portfolio segment
Total gross loans and leases	332,516	382,796	487,489
PCI Loans | Real estate mortgage
Credit risk rating categories for PCI loans by portfolio segment
Total gross loans and leases	321,532	371,134
PCI Loans | Real estate construction
Credit risk rating categories for PCI loans by portfolio segment
Total gross loans and leases	9,846	10,427
PCI Loans | Commercial
Credit risk rating categories for PCI loans by portfolio segment
Total gross loans and leases	873	974
PCI Loans | Consumer
Credit risk rating categories for PCI loans by portfolio segment
Total gross loans and leases	265	261
Nonclassified | PCI Loans
Credit risk rating categories for PCI loans by portfolio segment
Total gross loans and leases	197,672	221,060
Nonclassified | PCI Loans | Real estate mortgage
Credit risk rating categories for PCI loans by portfolio segment
Total gross loans and leases	193,554	216,092
Nonclassified | PCI Loans | Real estate construction
Credit risk rating categories for PCI loans by portfolio segment
Total gross loans and leases	3,663	4,399
Nonclassified | PCI Loans | Commercial
Credit risk rating categories for PCI loans by portfolio segment
Total gross loans and leases	455	569
Classified | PCI Loans
Credit risk rating categories for PCI loans by portfolio segment
Total gross loans and leases	134,844	161,736
Classified | PCI Loans | Real estate mortgage
Credit risk rating categories for PCI loans by portfolio segment
Total gross loans and leases	127,978	155,042
Classified | PCI Loans | Real estate construction
Credit risk rating categories for PCI loans by portfolio segment
Total gross loans and leases	6,183	6,028
Classified | PCI Loans | Commercial
Credit risk rating categories for PCI loans by portfolio segment
Total gross loans and leases	418	405
Classified | PCI Loans | Consumer
Credit risk rating categories for PCI loans by portfolio segment
Total gross loans and leases	$ 265	$ 261