LOANS AND LEASES (Details 3) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Allowance for Loan and Lease Losses:
Balance, beginning of period	$ 94,519	$ 110,577	$ 91,968	$ 116,588
Charge-offs	(4,698)	(8,045)	(5,787)	(10,696)
Recoveries	2,664	263	3,627	1,477
Provision (negative provision)	(1,842)	729	835	(3,845)
Balance, end of period	90,643	103,524	90,643	103,524
Loans and Leases:
Total gross loans and leases	4,420,619	3,487,301	4,420,619	3,487,301	3,592,832
Real estate mortgage
Allowance for Loan and Lease Losses:
Balance, beginning of period	37,265	42,210	38,700	50,205
Charge-offs	(3,237)	(2,583)	(3,559)	(4,773)
Recoveries	1,336	43	1,513	372
Provision (negative provision)	(3,560)	2,566	(4,850)	(3,568)
Balance, end of period	31,804	42,236	31,804	42,236
Amount of the allowance applicable to loans and leases:
Individually evaluated for impairment	3,548	6,221	3,548	6,221
Collectively evaluated for impairment	28,256	36,015	28,256	36,015
Loans and Leases:
Total gross loans and leases	3,032,602	1,850,162	3,032,602	1,850,162	2,422,570
Individually evaluated for impairment	96,293	103,252	96,293	103,252
Collectively evaluated for impairment	2,461,897	1,746,910	2,461,897	1,746,910
Real estate construction
Allowance for Loan and Lease Losses:
Balance, beginning of period	3,300	6,475	3,221	8,697
Recoveries	12	14	335	24
Provision (negative provision)	120	(993)	(124)	(3,225)
Balance, end of period	3,432	5,496	3,432	5,496
Amount of the allowance applicable to loans and leases:
Individually evaluated for impairment	62	1,197	62	1,197
Collectively evaluated for impairment	3,370	4,299	3,370	4,299
Loans and Leases:
Total gross loans and leases	213,735	129,107	213,735	129,107	154,604
Individually evaluated for impairment	14,966	32,607	14,966	32,607
Collectively evaluated for impairment	182,810	96,500	182,810	96,500
Commercial
Allowance for Loan and Lease Losses:
Balance, beginning of period	21,053	23,556	20,661	23,308
Charge-offs	(1,370)	(1,352)	(2,078)	(2,223)
Recoveries	1,297	190	1,704	1,014
Provision (negative provision)	3,185	(415)	3,878	(120)
Balance, end of period	24,165	21,979	24,165	21,979
Amount of the allowance applicable to loans and leases:
Individually evaluated for impairment	7,270	6,363	7,270	6,363
Collectively evaluated for impairment	16,895	15,616	16,895	15,616
Loans and Leases:
Total gross loans and leases	913,069	707,566	913,069	707,566	800,959
Individually evaluated for impairment	23,031	23,111	23,031	23,111
Collectively evaluated for impairment	886,478	684,455	886,478	684,455
Leases
Allowance for Loan and Lease Losses:
Balance, beginning of period	2,006	458	1,493
Charge-offs			(114)
Provision (negative provision)	90	40	717	498
Balance, end of period	2,096	498	2,096	498
Amount of the allowance applicable to loans and leases:
Collectively evaluated for impairment	2,096	498	2,096	498
Loans and Leases:
Total gross loans and leases	216,089	153,793	216,089	153,793	174,373
Individually evaluated for impairment	244	244	244	244
Collectively evaluated for impairment	215,845	153,549	215,845	153,549
Consumer
Allowance for Loan and Lease Losses:
Balance, beginning of period	1,494	1,908	1,726	2,768
Charge-offs	(27)	(34)	(36)	(233)
Recoveries	19	16	42	47
Provision (negative provision)	181	(155)	(65)	(847)
Balance, end of period	1,667	1,735	1,667	1,735
Amount of the allowance applicable to loans and leases:
Individually evaluated for impairment	240	255	240	255
Collectively evaluated for impairment	1,427	1,480	1,427	1,480
Loans and Leases:
Total gross loans and leases	29,051	17,689	29,051	17,689	23,085
Individually evaluated for impairment	698	495	698	495
Collectively evaluated for impairment	27,895	17,194	27,895	17,194
Foreign
Allowance for Loan and Lease Losses:
Balance, beginning of period	98	160	98	335
Recoveries				20
Provision (negative provision)	(16)	(43)	(16)	(238)
Balance, end of period	82	117	82	117
Amount of the allowance applicable to loans and leases:
Collectively evaluated for impairment	82	117	82	117
Loans and Leases:
Total gross loans and leases	16,073	17,017	16,073	17,017	17,241
Collectively evaluated for impairment	16,073	17,017	16,073	17,017
Non-PCI Loans
Allowance for Loan and Lease Losses:
Balance, beginning of period	65,216	74,767	65,899	85,313
Charge-offs	(4,634)	(3,969)	(5,787)	(7,229)
Recoveries	2,664	263	3,594	1,477
Provision (negative provision)		1,000	(460)	(7,500)
Balance, end of period	63,246	72,061	63,246	72,061
Amount of the allowance applicable to loans and leases:
Individually evaluated for impairment	11,120	14,036	11,120	14,036
Collectively evaluated for impairment	52,126	58,025	52,126	58,025
Loans and Leases:
Total gross loans and leases	3,926,230	2,875,334	3,926,230	2,875,334	3,074,947
Individually evaluated for impairment	135,232	159,709	135,232	159,709
Collectively evaluated for impairment	3,790,998	2,715,625	3,790,998	2,715,625
Non-PCI Loans | Real estate mortgage
Loans and Leases:
Total gross loans and leases	2,558,190		2,558,190		1,938,513
Non-PCI Loans | Real estate construction
Loans and Leases:
Total gross loans and leases	197,776		197,776		129,959
Non-PCI Loans | Commercial
Loans and Leases:
Total gross loans and leases	909,509		909,509		791,888
Non-PCI Loans | Leases
Loans and Leases:
Total gross loans and leases	216,089		216,089		174,373
Non-PCI Loans | Consumer
Loans and Leases:
Total gross loans and leases	28,593		28,593		22,973
Non-PCI Loans | Foreign
Loans and Leases:
Total gross loans and leases	16,073		16,073		17,241
PCI Loans
Allowance for Loan and Lease Losses:
Balance, beginning of period	29,303	35,810	26,069	31,275
Charge-offs	(64)	(4,076)		(3,467)
Recoveries			33
Provision (negative provision)	(1,842)	(271)	1,295	3,655
Balance, end of period	27,397	31,463	27,397	31,463
Amount of the allowance applicable to loans and leases:
Acquired with deteriorated credit quality	27,397	31,463	27,397	31,463
Loans and Leases:
Total gross loans and leases	494,389	611,967	494,389	611,967	517,885
Acquired with deteriorated credit quality	494,389	611,967	494,389	611,967
PCI Loans | Real estate mortgage
Loans and Leases:
Total gross loans and leases	474,412		474,412		484,057
PCI Loans | Real estate construction
Loans and Leases:
Total gross loans and leases	15,959		15,959		24,645
PCI Loans | Commercial
Loans and Leases:
Total gross loans and leases	3,560		3,560		9,071
PCI Loans | Consumer
Loans and Leases:
Total gross loans and leases	$ 458		$ 458		$ 112