Note 6 - Past Due Loans, Allowance For Credit Losses, and Impaired Loans (Tables)

9 Months Ended

Sep. 30, 2012

Past Due Financing Receivables [Table Text Block]

	Aging Analysis (Accruing and Non-accrual)										Non-performing Loans
	Current		30-89 Days Past Due		90 Days or More Past Due		Total Past Due		Total Loans		Non- accrual Loans		90 Days Past Due Loans, Still Accruing Interest
September 30, 2012
Commercial and industrial	$	1,578,417	$	4,054	$	27,698	$	31,752	$	1,610,169	$	31,102	$	2,885
Agricultural		258,330		373		1,084		1,457		259,787		1,204		-
Commercial real estate:
Office, retail, and industrial		1,303,021		5,089		22,221		27,310		1,330,331		22,624		439
Multi-family		307,358		414		1,737		2,151		309,509		2,028		219
Residential construction		56,015		1,155		4,750		5,905		61,920		4,750		-
Commercial construction		128,389		86		8,034		8,120		136,509		4,423		3,611
Other commercial real estate		756,931		8,067		15,714		23,781		780,712		21,284		1,313
Total commercial real estate		2,551,714		14,811		52,456		67,267		2,618,981		55,109		5,582
Total corporate loans		4,388,461		19,238		81,238		100,476		4,488,937		87,415		8,467
Home equity		384,831		5,841		6,834		12,675		397,506		6,262		1,989
1-4 family mortgages		283,492		2,042		7,374		9,416		292,908		5,901		2,050
Installment loans		38,638		279		77		356		38,994		1		76
Total consumer loans		706,961		8,162		14,285		22,447		729,408		12,164		4,115
Total loans, excluding covered loans		5,095,422		27,400		95,523		122,923		5,218,345		99,579		12,582
Covered loans		158,800		9,365		48,445		57,810		216,610		16,372		34,554
Total loans	$	5,254,222	$	36,765	$	143,968	$	180,733	$	5,434,955	$	115,951	$	47,136
December 31, 2011
Commercial and industrial	$	1,415,165	$	13,731	$	29,550	$	43,281	$	1,458,446	$	44,152	$	4,991
Agricultural		242,727		30		1,019		1,049		243,776		1,019		-
Commercial real estate:
Office, retail, and industrial		1,276,920		2,931		19,231		22,162		1,299,082		30,043		1,040
Multi-family		281,943		1,121		5,272		6,393		288,336		6,487		-
Residential construction		87,606		2,164		16,066		18,230		105,836		18,076		-
Commercial construction		129,310		320		15,279		15,599		144,909		23,347		-
Other commercial real estate		849,066		6,372		32,708		39,080		888,146		51,447		1,707
Total commercial real estate		2,624,845		12,908		88,556		101,464		2,726,309		129,400		2,747
Total corporate loans		4,282,737		26,669		119,125		145,794		4,428,531		174,571		7,738
Home equity		402,842		6,112		7,240		13,352		416,194		7,407		1,138
1-4 family mortgages		192,646		3,712		4,741		8,453		201,099		5,322		-
Installment loans		41,288		625		376		1,001		42,289		25		351
Total consumer loans		636,776		10,449		12,357		22,806		659,582		12,754		1,489
Total loans, excluding covered loans		4,919,513		37,118		131,482		168,600		5,088,113		187,325		9,227
Covered loans		195,289		7,853		57,360		65,213		260,502		19,879		43,347
Total loans	$	5,114,802	$	44,971	$	188,842	$	233,813	$	5,348,615	$	207,204	$	52,574

Allowance for Credit Losses on Financing Receivables [Table Text Block]

	Quarters Ended September 30,						Nine Months Ended September 30,
	2012			2011			2012			2011
Balance at beginning of period	$	118,682		$	139,831		$	121,962		$	145,072
Loan and covered loan charge-offs		(127,120	)		(29,998	)		(173,487	)		(79,315	)
Recoveries on previous loan and covered loan charge-offs		1,592			1,033			4,011			6,854
Net loan and covered loan charge-offs		(125,528	)		(28,965	)		(169,476	)		(72,461	)
Provision for loan and covered loan losses		111,791			20,425			152,459			58,680
Balance at end of period	$	104,945		$	131,291		$	104,945		$	131,291
Allowance for loan and covered loan losses	$	102,445		$	128,791		$	102,445		$	128,791
Reserve for unfunded commitments		2,500			2,500			2,500			2,500
Total allowance for credit losses	$	104,945		$	131,291		$	104,945		$	131,291

Schedule of Credit Losses Related to Financing Receivables, Current and Noncurrent [Table Text Block]

	Commercial, Industrial, and Agricultural			Office, Retail, and Industrial			Multi- Family			Residential Construction			Other Commercial Real Estate			Consumer			Covered Loans (1)			Total Allowance
Nine months ended September 30, 2012
Balance at beginning of period	$	46,017		$	16,012		$	5,067		$	14,563		$	24,471		$	14,843		$	989		$	121,962
Charge-offs		(59,715	)		(37,561	)		(3,242	)		(13,649	)		(48,006	)		(8,164	)		(3,150	)		(173,487	)
Recoveries on previous charge-offs		2,569			311			165			346			46			574			-			4,011
Net charge-offs		(57,146	)		(37,250	)		(3,077	)		(13,303	)		(47,960	)		(7,590	)		(3,150	)		(169,476	)
Provision for loan and covered loan losses		48,773			33,212			1,983			6,801			44,616			5,516			11,558			152,459
Balance at end of period	$	37,644		$	11,974		$	3,973		$	8,061		$	21,127		$	12,769		$	9,397		$	104,945
Nine months ended September 30, 2011
Balance at beginning of period	$	49,545		$	20,758		$	3,996		$	27,933		$	29,869		$	12,971		$	-		$	145,072
Charge-offs		(22,815	)		(4,395	)		(9,445	)		(11,397	)		(17,018	)		(8,021	)		(6,224	)		(79,315	)
Recoveries on previous charge-offs		2,952			60			74			2,830			623			315			-			6,854
Net charge-offs		(19,863	)		(4,335	)		(9,371	)		(8,567	)		(16,395	)		(7,706	)		(6,224	)		(72,461	)
Provision for loan and covered loan losses		19,217			224			9,985			(1,295	)		13,637			9,665			7,247			58,680
Balance at end of period	$	48,899		$	16,647		$	4,610		$	18,071		$	27,111		$	14,930		$	1,023		$	131,291

Impaired Loans [Text Block]

	September 30, 2012		December 31, 2011
Impaired loans individually evaluated for impairment:
Impaired loans with a related allowance for credit losses (1)	$	46,143	$	76,397
Impaired loans with no specific related allowance for credit losses (2)		35,607		83,090
Total impaired loans individually evaluated for impairment		81,750		159,487
Corporate non-accrual loans not individually evaluated for impairment (3)		5,665		15,084
Total corporate non-accrual loans		87,415		174,571
TDRs, still accruing interest		6,391		17,864
Total impaired loans	$	93,806	$	192,435
Valuation allowance related to impaired loans	$	13,988	$	26,095

Loans and Related Allowance for Credit Losses by Portfolio Segment [Table Text Block]

	Loans						Allowance For Credit Losses
	Individually Evaluated For Impairment		Collectively Evaluated For Impairment		Total		Individually Evaluated For Impairment		Collectively Evaluated For Impairment		Total
September 30, 2012
Commercial, industrial, and agricultural	$	29,454	$	1,840,502	$	1,869,956	$	10,627	$	27,017	$	37,644
Commercial real estate:
Office, retail, and industrial		22,036		1,308,295		1,330,331		1,413		10,561		11,974
Multi-family		1,447		308,062		309,509		80		3,893		3,973
Residential construction		4,512		57,408		61,920		173		7,888		8,061
Other commercial real estate		24,301		892,920		917,221		1,695		19,432		21,127
Total commercial real estate		52,296		2,566,685		2,618,981		3,361		41,774		45,135
Total corporate loans		81,750		4,407,187		4,488,937		13,988		68,791		82,779
Consumer		-		729,408		729,408		-		12,769		12,769
Total loans, excluding covered loans		81,750		5,136,595		5,218,345		13,988		81,560		95,548
Covered loans (1)		-		216,610		216,610		-		9,397		9,397
Total loans included in the calculation of the allowance for credit losses	$	81,750	$	5,353,205	$	5,434,955	$	13,988	$	90,957	$	104,945
December 31, 2011
Commercial, industrial, and agricultural	$	37,385	$	1,664,837	$	1,702,222	$	14,827	$	31,190	$	46,017
Commercial real estate:
Office, retail, and industrial		28,216		1,270,866		1,299,082		1,507		14,505		16,012
Multi-family		5,589		282,747		288,336		20		5,047		5,067
Residential construction		17,378		88,458		105,836		2,502		12,061		14,563
Other commercial real estate		70,919		962,136		1,033,055		7,239		17,232		24,471
Total commercial real estate		122,102		2,604,207		2,726,309		11,268		48,845		60,113
Total corporate loans		159,487		4,269,044		4,428,531		26,095		80,035		106,130
Consumer		-		659,582		659,582		-		14,843		14,843
Total loans, excluding covered loans		159,487		4,928,626		5,088,113		26,095		94,878		120,973
Covered loans (2)		-		45,451		45,451		-		989		989
Total loans included in the calculation of the allowance for credit losses	$	159,487	$	4,974,077	$	5,133,564	$	26,095	$	95,867	$	121,962

Impaired Financing Receivables [Table Text Block]

	September 30, 2012								December 31, 2011
	Recorded Investment In								Recorded Investment In
	Loans with No Related Allowance for Credit Losses		Loans with a Related Allowance for Credit Losses		Unpaid Principal Balance		Specific Allowance for Credit Losses Allocated		Loans with No Related Allowance for Credit Losses		Loans with a Related Allowance for Credit Losses		Unpaid Principal Balance		Specific Allowance for Credit Losses Allocated
Commercial and industrial	$	9,707	$	19,023	$	60,808	$	10,627	$	10,801	$	26,028	$	58,591	$	14,827
Agricultural		724		-		892		-		556		-		556		-
Commercial real estate:
Office, retail, and industrial		9,540		12,496		38,896		1,413		11,897		16,319		33,785		1,507
Multi-family		646		801		3,433		80		5,072		517		11,265		20
Residential construction		4,009		503		12,134		173		9,718		7,660		33,124		2,502
Commercial construction		3,550		876		9,139		37		19,019		3,790		28,534		758
Other commercial real estate		7,431		12,444		29,701		1,658		26,027		22,083		70,868		6,481
Total commercial real estate		25,176		27,120		93,303		3,361		71,733		50,369		177,576		11,268
Total impaired loans individually evaluated for impairment	$	35,607	$	46,143	$	155,003	$	13,988	$	83,090	$	76,397	$	236,723	$	26,095

Troubled Debt Restructuring by Class [Table Text Block]

	As of September 30, 2012						As of December 31, 2011
	Accruing		Non-accrual (1)		Total		Accruing		Non-accrual (1)		Total
Commercial and industrial	$	172	$	2,827	$	2,999	$	1,451	$	897	$	2,348
Agricultural		-		-		-		-		-		-
Commercial real estate:
Office, retail, and industrial		-		2,407		2,407		1,742		-		1,742
Multi-family		-		150		150		11,107		1,758		12,865
Residential construction		-		-		-		-		-		-
Commercial construction		-		-		-		-		14,006		14,006
Other commercial real estate		5,090		5,707		10,797		227		11,417		11,644
Total commercial real estate		5,090		8,264		13,354		13,076		27,181		40,257
Total corporate loans		5,262		11,091		16,353		14,527		28,078		42,605
Home equity		22		237		259		1,093		471		1,564
1-4 family mortgages		1,107		1,059		2,166		2,089		1,293		3,382
Installment loans		-		-		-		155		-		155
Total consumer loans		1,129		1,296		2,425		3,337		1,764		5,101
Total loans	$	6,391	$	12,387	$	18,778	$	17,864	$	29,842	$	47,706

Troubled Debt Restructurings on Financing Receivables [Table Text Block]

	Number of Loans		Pre- Modification Recorded Investment		Funds Disbursed		Interest and Escrow Capitalized		Charge-offs		Post- Modification Recorded Investment
Nine months ended September 30, 2012
Commercial and industrial		2	$	2,793	$	-	$	-	$	170	$	2,623
Office, retail, and industrial		2		2,416		-		-		-		2,416
Other commercial real estate		7		11,906		-		-		652		11,254
1-4 family mortgages		4		563		-		4		-		567
Total TDRs restructured during the period		15	$	17,678	$	-	$	4	$	822	$	16,860
Nine months ended September 30, 2011
Commercial and industrial		10	$	886	$	-	$	7	$	-	$	893
Office, retail, and industrial		3		3,407		293		9		-		3,709
Other commercial real estate		1		174		-		74		-		248
Home equity		8		508		-		16		-		524
1-4 family mortgages		12		1,236		-		89		-		1,325
Installment loans		1		151		-		4		-		155
Total TDRs restructured during the period		35	$	6,362	$	293	$	199	$	-	$	6,854

Schedule of Debtor Troubled Debt Restructuring, Subsequent Periods [Table Text Block]

	Nine Months Ended
	September 30, 2012					September 30, 2011
	Number of Loans		Recorded Investment			Number of Loans		Recorded Investment
Office, retail, and industrial		2		$	837		1		$	397
Other commercial real estate		2			717		-			-
Home equity		-			-		1			83
1-4 family mortgages		1			62		1			141
Total restructured loans		5		$	1,616		3		$	621

Financing Receivable Credit Quality Indicators [Table Text Block]

	Pass		Special Mention (1)		Substandard (2)		Non-accrual (3)		Total
September 30, 2012
Commercial and industrial	$	1,534,695	$	39,966	$	4,406	$	31,102	$	1,610,169
Agricultural		256,772		1,811		-		1,204		259,787
Commercial real estate:
Office, retail, and industrial		1,232,427		58,325		16,955		22,624		1,330,331
Multi-family		305,827		1,654		-		2,028		309,509
Residential construction		34,954		13,867		8,349		4,750		61,920
Commercial construction		106,726		14,318		11,042		4,423		136,509
Other commercial real estate		714,296		14,725		30,407		21,284		780,712
Total commercial real estate		2,394,230		102,889		66,753		55,109		2,618,981
Total corporate loans	$	4,185,697	$	144,666	$	71,159	$	87,415	$	4,488,937
December 31, 2011
Commercial and industrial	$	1,308,812	$	57,866	$	47,616	$	44,152	$	1,458,446
Agricultural		232,270		10,487		-		1,019		243,776
Commercial real estate:
Office, retail, and industrial		1,147,026		78,578		43,435		30,043		1,299,082
Multi-family		275,031		5,803		1,015		6,487		288,336
Residential construction		48,806		27,198		11,756		18,076		105,836
Commercial construction		92,568		23,587		5,407		23,347		144,909
Other commercial real estate		746,213		73,058		17,428		51,447		888,146
Total commercial real estate		2,309,644		208,224		79,041		129,400		2,726,309
Total corporate loans	$	3,850,726	$	276,577	$	126,657	$	174,571	$	4,428,531

Schedule of Consumer Loans by Credit Quality Indicators [Table Text Block]

	Performing		Non-accrual		Total
September 30, 2012
Home equity	$	391,244	$	6,262	$	397,506
1-4 family mortgages		287,007		5,901		292,908
Installment loans		38,993		1		38,994
Total consumer loans	$	717,244	$	12,164	$	729,408
December 31, 2011
Home equity	$	408,787	$	7,407	$	416,194
1-4 family mortgages		195,777		5,322		201,099
Installment loans		42,264		25		42,289
Total consumer loans	$	646,828	$	12,754	$	659,582

Continued [Member]

Impaired Financing Receivables [Table Text Block]

	Nine Months Ended September 30, 2012				Nine Months Ended September 30, 2011
	Average Recorded Investment Balance		Interest Income Recognized (1)		Average Recorded Investment Balance		Interest Income Recognized (1)
Commercial and industrial	$	50,777	$	94	$	48,982	$	51
Agricultural		1,117		-		1,463		-
Commercial real estate:
Office, retail, and industrial		35,874		2		30,423		30
Multi-family		7,680		-		12,226		6
Residential construction		17,658		1		34,828		27
Commercial construction		21,397		-		23,818		-
Other commercial real estate		41,085		38		26,143		23
Total commercial real estate		123,694		41		127,438		86
Total impaired loans individually evaluated for impairment	$	175,588	$	135	$	177,883	$	137