INCOME TAXES (Details 2) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Deferred tax liabilities:
Core deposit intangibles	$ (21,064)	$ (20,257)
Affordable housing partnerships and other investments	(15,888)	(20,558)
Fixed assets	(19,473)	(21,490)
FHLB stock	(14,561)	(26,810)
Deferred loan fees	(2,533)	(3,242)
Purchased loan discounts	(126)	(162)
State taxes	(1,079)	(7,894)
Mortgage servicing assets		(2,329)
Section 597 gain	(49,687)	(96,915)
FDIC receivable	(252,602)	(328,146)
Acquired debt	(11,854)	(12,173)
Other, net	(5,882)	23
Total gross deferred tax (liabilities)	(394,749)	(539,953)
Deferred tax assets:
Allowance for loan losses and REO reserves	116,064	111,985
Deferred compensation	17,146	23,475
Mortgage servicing assets	368
Purchased loan premium	544	624
Unrealized loss on securities	81,712	60,383
Net operating loss carryforwards	993	698
Acquired loans and REOs	394,208	516,578
Other, net	39,581	12,295
Total gross deferred tax assets	650,616	726,038
Valuation allowance	(337)	(372)
Net deferred tax (liabilities) assets	255,530	185,713
Federal
Deferred tax liabilities:
Core deposit intangibles	(16,422)	(15,755)
Affordable housing partnerships and other investments	(14,158)	(16,221)
Fixed assets	(15,594)	(17,201)
FHLB stock	(11,337)	(17,670)
Deferred loan fees	(1,976)	(2,523)
Purchased loan discounts	(98)	(126)
State taxes	(1,079)	(7,894)
Mortgage servicing assets		(1,812)
Section 597 gain	(48,370)	(94,231)
FDIC receivable	(245,907)	(318,741)
Acquired debt	(10,812)	(10,812)
Other, net	(6,805)	(604)
Total gross deferred tax (liabilities)	(372,558)	(503,590)
Deferred tax assets:
Allowance for loan losses and REO reserves	93,018	93,924
Deferred compensation	13,322	18,213
Mortgage servicing assets	287
Purchased loan premium	424	485
Unrealized loss on securities	62,535	47,567
Acquired loans and REOs	366,290	478,825
Other, net	30,768	9,021
Total gross deferred tax assets	566,644	648,035
Net deferred tax (liabilities) assets	194,086	144,445
State
Deferred tax liabilities:
Core deposit intangibles	(4,642)	(4,635)
Affordable housing partnerships and other investments	(1,730)	(4,337)
Fixed assets	(3,879)	(4,289)
FHLB stock	(3,224)	(9,140)
Deferred loan fees	(557)	(719)
Purchased loan discounts	(28)	(36)
Mortgage servicing assets		(517)
Section 597 gain	(1,317)	(2,684)
FDIC receivable	(6,695)	(9,405)
Acquired debt	(1,042)	(1,061)
Other, net	923	627
Total gross deferred tax (liabilities)	(22,191)	(36,196)
Deferred tax assets:
Allowance for loan losses and REO reserves	23,046	23,281
Deferred compensation	3,824	5,262
Mortgage servicing assets	81
Purchased loan premium	120	139
Unrealized loss on securities	19,177	12,816
Net operating loss carryforwards	993	698
Acquired loans and REOs	26,959	29,796
Other, net	8,716	3,177
Total gross deferred tax assets	82,916	75,169
Valuation allowance	(337)	(372)
Net deferred tax (liabilities) assets	60,388	38,601
Foreign
Deferred tax liabilities:
Core deposit intangibles		133
Acquired debt		(300)
Total gross deferred tax (liabilities)		(167)
Deferred tax assets:
Allowance for loan losses and REO reserves		(5,220)
Acquired loans and REOs	959	7,957
Other, net	97	97
Total gross deferred tax assets	1,056	2,834
Net deferred tax (liabilities) assets	$ 1,056	$ 2,667