LOANS AND LEASES (Tables)

12 Months Ended

Dec. 31, 2011

Loans and Leases Receivable Disclosure [Abstract]

Loans And Leases Outstanding

	2011		2010
Covered loans (1)	$	2,362,152	$	2,007,452
Noncovered loans and leases:
Commercial:
Construction and land development	381,163		338,929
Commercial mortgage	5,104,993		4,737,862
Other commercial real estate	144,771		149,710
Commercial and industrial	1,764,407		1,869,490
Lease financing	312,869		301,289
Other	158,369		182,015
Total commercial loans	7,866,572		7,579,295
Non-commercial:
Residential mortgage	784,118		878,792
Revolving mortgage	2,296,306		2,233,853
Construction and land development	137,271		192,954
Consumer	497,370		595,683
Total non-commercial loans	3,715,065		3,901,282
Total noncovered loans and leases	11,581,637		11,480,577
Total loans and leases	$	13,943,789	$	13,488,029

(1) Covered loans are acquired loans subject to loss share agreements with the FDIC.

	2011						2010
	Impaired at acquisition date		All other acquired loans		Total		Impaired at acquisition date		All other acquired loans		Total
Covered loans:
Commercial:
Construction and land development	$	117,603	$	221,270	$	338,873	$	102,988	$	265,432	$	368,420
Commercial mortgage	138,465		1,122,124		1,260,589		120,240		968,824		1,089,064
Other commercial real estate	33,370		125,024		158,394		34,704		175,957		210,661
Commercial and industrial	27,802		85,640		113,442		9,087		123,390		132,477
Lease financing	—		57		57		—		—		—
Other	—		1,330		1,330		—		1,510		1,510
Total commercial loans	317,240		1,555,445		1,872,685		267,019		1,535,113		1,802,132
Non-commercial:
Residential mortgage	46,130		281,438		327,568		11,026		63,469		74,495
Revolving mortgage	15,350		36,202		51,552		8,400		9,466		17,866
Construction and land development	78,108		27,428		105,536		44,260		61,545		105,805
Consumer	1,477		3,334		4,811		—		7,154		7,154
Total non-commercial loans	141,065		348,402		489,467		63,686		141,634		205,320
Total covered loans	$	458,305	$	1,903,847	$	2,362,152	$	330,705	$	1,676,747	$	2,007,452

Composition Of The Loans And Leases Outstanding By Credit Quality Indicator

	Commercial noncovered loans and leases
Grade:	Construction and Land Development		Commercial Mortgage		Other Commercial Real Estate		Commercial  and Industrial		Lease  Financing		Other		Total Commercial Loans Not Covered by Loss Share
December 31, 2011
Pass	$	332,742	$	4,749,254	$	130,586	$	1,556,651	$	306,225	$	157,089	$	7,232,547
Special mention	18,973		220,235		5,821		36,951		4,537		1,271		287,788
Substandard	28,793		129,391		7,794		28,240		2,107		—		196,325
Doubtful	17		1,164		377		643		—		—		2,201
Ungraded	638		4,949		193		141,922		—		9		147,711
Total	$	381,163	$	5,104,993	$	144,771	$	1,764,407	$	312,869	$	158,369	$	7,866,572
December 31, 2010
Pass	$	285,988	$	4,390,634	$	137,570	$	1,633,775	$	291,476	$	181,044	$	6,920,487
Special mention	20,957		229,581		6,531		42,639		6,888		846		307,442
Substandard	29,714		108,239		5,103		24,686		2,496		90		170,328
Doubtful	2,270		7,928		401		748		414		—		11,761
Ungraded	—		1,480		105		167,642		15		35		169,277
Total	$	338,929	$	4,737,862	$	149,710	$	1,869,490	$	301,289	$	182,015	$	7,579,295

	Non-commercial noncovered loans and leases
	Residential Mortgage		Revolving Mortgage		Construction and Land Development		Consumer		Total  Non- commercial Noncovered Loans
December 31, 2011
Current	$	757,113	$	2,286,511	$	135,774	$	491,142	$	3,670,540
31-60 days past due	11,790		3,437		798		3,514		19,539
61-90 days past due	2,686		2,042		127		1,271		6,126
Over 90 days past due	12,529		4,316		572		1,443		18,860
Total	$	784,118	$	2,296,306	$	137,271	$	497,370	$	3,715,065
December 31, 2010
Current	$	840,328	$	2,226,427	$	187,918	$	579,227	$	3,833,900
31-60 days past due	13,051		3,682		1,445		12,798		30,976
61-90 days past due	4,762		1,424		548		2,611		9,345
Over 90 days past due	20,651		2,320		3,043		1,047		27,061
Total	$	878,792	$	2,233,853	$	192,954	$	595,683	$	3,901,282

	Covered loans
Grade:	Construction and Land Development - Commercial		Commercial Mortgage		Other Commercial Real Estate		Commercial and Industrial		Lease Financing		Residential Mortgage		Revolving Mortgage		Construction and Land Development Non-commercial		Consumer and Other		Total  Covered Loans
December 31, 2011
Pass	$	29,321	$	397,526	$	49,259	$	36,409	$	57	$	189,794	$	34,164	$	4,958	$	2,393	$	743,881
Special mention	92,758		348,482		33,754		32,257		—		25,464		3,566		13,394		942		550,617
Substandard	125,158		427,996		58,351		21,914		—		70,582		9,863		72,349		1,096		787,309
Doubtful	87,936		84,871		17,030		22,862		—		13,833		3,959		14,835		982		246,308
Ungraded	3,700		1,714		—		—		—		27,895		—		—		728		34,037
Total	$	338,873	$	1,260,589	$	158,394	$	113,442	$	57	$	327,568	$	51,552	$	105,536	$	6,141	$	2,362,152
December 31, 2010
Pass	$	98,449	$	430,526	$	77,162	$	46,450	$	—	$	39,492	$	5,051	$	—	$	6,296	$	703,426
Special mention	90,203		261,273		40,756		36,566		—		17,041		3,630		3,549		1,231		454,249
Substandard	79,631		326,036		65,896		41,936		—		11,609		3,462		67,594		691		596,855
Doubtful	100,137		71,175		26,847		7,525		—		6,353		1,837		34,662		438		248,974
Ungraded	—		54		—		—		—		—		3,886		—		8		3,948
Total	$	368,420	$	1,089,064	$	210,661	$	132,477	$	—	$	74,495	$	17,866	$	105,805	$	8,664	$	2,007,452

Aging Of The Outstanding Loans And Leases By Class Excluding Loans Impaired At Acquisition Date

	31-60 Days Past Due		61-90 Days Past Due		Greater Than 90 Days		Total Past Due		Current		Total Loans and Leases
December 31, 2011
Noncovered loans and leases:
Construction and land development - commercial	$	2,623	$	1,494	$	2,177	$	6,294	$	374,869	$	381,163
Commercial mortgage	18,308		4,438		15,626		38,372		5,066,621		5,104,993
Other commercial real estate	657		147		561		1,365		143,406		144,771
Commercial and industrial	5,235		1,230		1,438		7,903		1,756,504		1,764,407
Lease financing	637		212		620		1,469		311,400		312,869
Other	—		—		—		—		158,369		158,369
Residential mortgage	11,790		2,686		12,529		27,005		757,113		784,118
Revolving mortgage	3,437		2,042		4,316		9,795		2,286,511		2,296,306
Construction and land development - non-commercial	798		127		572		1,497		135,774		137,271
Consumer	3,514		1,271		1,443		6,228		491,142		497,370
Total noncovered loans and leases	$	46,999	$	13,647	$	39,282	$	99,928	$	11,481,709	$	11,581,637

	31-60 Days Past Due		61-90 Days Past Due		Greater Than 90 Days		Total Past Due		Current		Total Loans and Leases
December 31, 2010
Noncovered loans and leases:
Construction and land development - commercial	$	3,047	$	6,092	$	4,208	$	13,347	$	325,582	$	338,929
Commercial mortgage	22,913		7,521		20,425		50,859		4,687,003		4,737,862
Other commercial real estate	35		290		621		946		148,764		149,710
Commercial and industrial	4,434		1,473		3,744		9,651		1,859,839		1,869,490
Lease financing	2,266		141		630		3,037		298,252		301,289
Other	40		75		—		115		181,900		182,015
Residential mortgage	13,051		4,762		20,651		38,464		840,328		878,792
Revolving mortgage	3,682		1,424		2,320		7,426		2,226,427		2,233,853
Construction and land development - non-commercial	1,445		548		3,043		5,036		187,918		192,954
Consumer	12,798		2,611		1,047		16,456		579,227		595,683
Total noncovered loans and leases	$	63,711	$	24,937	$	56,689	$	145,337	$	11,335,240	$	11,480,577

Recorded Investment, By Class, In Loans And Leases On Nonaccrual Status And Loans And Leases Greater Than 90 Days Past Due And Still Accruing

	December 31, 2011				December 31, 2010
	Nonaccrual loans and leases		Loans and leases > 90 days and accruing		Nonaccrual loans and leases		Loans and leases > 90 days and accruing
Noncovered loans and leases:
Construction and land development - commercial	$	15,102	$	313	$	26,796	$	68
Commercial mortgage	23,748		3,107		32,723		4,347
Commercial and industrial	1,864		320		3,320		1,850
Lease financing	200		554		806		298
Other commercial real estate	1,170		—		777		80
Construction and land development - non-commercial	—		572		1,330		1,122
Residential mortgage	10,657		4,227		13,062		6,640
Revolving mortgage	—		4,306		—		2,301
Consumer	—		1,441		—		1,795
Total noncovered loans and leases	$	52,741	$	14,840	$	78,814	$	18,501

Changes In Carrying Value Of Acquired Impaired Loans

	2011						2010
	Impaired at acquisition date			All other acquired loans			Impaired at acquisition date			All other acquired loans
Balance, January 1	$	330,705		$	1,676,747		$	75,368		$	1,097,652
Fair value at acquisition date of acquired loans covered by loss share agreements	302,340			777,800			412,628			1,152,134
Reductions for repayments, foreclosures and decreases in carrying value	(174,740		)	(550,700		)	(157,291		)	(573,039		)
Balance, December 31	$	458,305		$	1,903,847		$	330,705		$	1,676,747
Outstanding principal balance, December 31	$	1,334,299		$	2,537,652		$	629,414		$	2,211,047

Changes In The Amount Of Accretable Yield

	2011			2010
Balance, January 1	$	164,586		$	14,481
Additions for acquired loans	106,520			109,766
Accretion	(319,429		)	(181,363		)
Reclassifications from nonaccretable difference	325,013			222,772
Disposals	—			(1,070		)
Balance, December 31	$	276,690		$	164,586

Loans Acquired, The Contractually Required Payments Including Principal And Interest, Expected Cash Flows To Be Collected And Fair Values

	Impaired at acquisition date		All other acquired loans
Contractually required payments	$	746,461	$	944,898
Cash flows expected to be collected	380,849		805,811
Fair value at acquisition date	302,340		777,800

Loans Acquired By Loan Class

	United Western		CCB
Commercial:
Construction and land development	$	52,889	$	106,439
Commercial mortgage	304,769		30,026
Other commercial real estate	8,434		4,807
Commercial and industrial	75,523		32,250
Lease financing	316		—
Total commercial loans	441,931		173,522
Non-commercial:
Residential mortgage	260,389		68,522
Revolving mortgage	12,073		34,363
Construction and land development	39,827		38,295
Consumer	5,131		6,087
Total non-commercial loans	317,420		147,267
Total covered loans acquired	$	759,351	$	320,789

Loan Sale Activity

	2011		2010		2009
Loans held for sale at December 31	$	92,539	$	88,933	$	67,381
For the year ended December 31:
Loans sold	509,647		583,750		753,172
Net gain on sale of loans held for sale	8,751		8,858		8,801