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

6 Months Ended

18 Months Ended

Jun. 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
June 30, 2012
Commercial and industrial	$	1,536,959	$	14,364	$	46,104	$	60,468	$	1,597,427	$	55,358	$	2,565
Agricultural		271,139		171		1,432		1,603		272,742		1,293		260
Commercial real estate:
Office, retail, and industrial		1,341,119		14,831		35,179		50,010		1,391,129		46,629		1,090
Multi-family		298,932		1,136		8,182		9,318		308,250		8,843		-
Residential construction		71,021		2,821		15,066		17,887		88,908		17,500		-
Commercial construction		123,200		1,945		22,481		24,426		147,626		21,981		500
Other commercial real estate		786,443		2,951		27,677		30,628		817,071		34,192		2,540
Total commercial real estate		2,620,715		23,684		108,585		132,269		2,752,984		129,145		4,130
Total corporate loans		4,428,813		38,219		156,121		194,340		4,623,153		185,796		6,955
Home equity		388,337		3,689		6,402		10,091		398,428		7,245		779
1-4 family mortgages		230,104		1,985		5,252		7,237		237,341		5,466		366
Installment loans		38,683		328		93		421		39,104		1		92
Total consumer loans		657,124		6,002		11,747		17,749		674,873		12,712		1,237
Total loans, excluding covered loans		5,085,937		44,221		167,868		212,089		5,298,026		198,508		8,192
Covered loans		175,844		7,900		46,303		54,203		230,047		14,540		33,288
Total loans	$	5,261,781	$	52,121	$	214,171	$	266,292	$	5,528,073	$	213,048	$	41,480
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 realestate		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 June 30,						Six Months Ended June 30,
	2012			2011			2012			2011
Balance at beginning of period	$	118,764		$	145,003		$	121,962		$	145,072
Loan charged-offs		(23,681	)		(27,748	)		(46,367	)		(49,317	)
Recoveries on previous loan charge-offs		1,141			3,813			2,419			5,821
Net loan charge-offs		(22,540	)		(23,935	)		(43,948	)		(43,496	)
Provision for loan losses		22,458			18,763			40,668			38,255
Balance at end of period	$	118,682		$	139,831		$	118,682		$	139,831
Allowance for loan losses	$	116,182		$	137,331		$	116,182		$	137,331
Reserve for unfunded commitments		2,500			2,500			2,500			2,500
Total allowance for credit losses	$	118,682		$	139,831		$	118,682		$	139,831

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			Total Allowance
Six months ended June 30, 2012
Balance at beginning of period	$	46,017		$	16,012		$	5,067		$	14,563		$	24,471		$	14,843		$	989		$	121,962
Loan charge-offs		(14,613	)		(5,237	)		(484	)		(4,281	)		(13,922	)		(5,122	)		(2,708	)		(46,367	)
Recoveries on previous loan charge-offs		1,251			309			162			220			25			452			-			2,419
Net loan charge-offs		(13,362	)		(4,928	)		(322	)		(4,061	)		(13,897	)		(4,670	)		(2,708	)		(43,948	)
Provision for loan losses		10,755			7,269			44			2,370			14,256			3,273			2,701			40,668
Balance at end of period	$	43,410		$	18,353		$	4,789		$	12,872		$	24,830		$	13,446		$	982		$	118,682
Six months ended June 30, 2011
Balance at beginning of period	$	49,545		$	20,758		$	3,996		$	27,933		$	29,869		$	12,971		$	-		$	145,072
Loans charge-offs		(11,877	)		(1,846	)		(7,201	)		(9,083	)		(8,331	)		(5,779	)		(5,200	)		(49,317	)
Recoveries on previous loan charge-offs		2,356			54			-			2,766			472			173			-			5,821
Net loans charge-offs		(9,521	)		(1,792	)		(7,201	)		(6,317	)		(7,859	)		(5,606	)		(5,200	)		(43,496	)
Provision for loan losses		8,510			(2,104	)		12,080			2,711			5,425			6,433			5,200			38,255
Balance at end of period	$	48,534		$	16,862		$	8,875		$	24,327		$	27,435		$	13,798		$	-		$	139,831

Impaired Loans [Text Block]

	June 30, 2012		December 31, 2011
Impaired loans individually evaluated for impairment:
Impaired loans with a related allowance for credit losses (1)	$	102,475	$	76,397
Impaired loans with no specific related allowance for credit losses (2)		62,617		83,090
Total impaired loans individually evaluated for impairment		168,092		159,487
Corporate non-accrual loans not individually evaluated for impairment (3)		17,704		15,084
Total corporate non-accrual loans		185,796		174,571
TDRs, still accruing interest		7,811		17,864
Total impaired loans	$	193,607	$	192,435
Valuation allowance related to impaired loans	$	25,267	$	26,095

	Loans						Allowance For Credit Losses
	Individually Evaluated For Impairment		Collectively Evaluated For Impairment		Total		Individually Evaluated For Impairment		Collectively Evaluated For Impairment		Total
June 30, 2012
Commercial, industrial, and agricultural	$	48,328	$	1,821,841	$	1,870,169	$	12,177	$	31,233	$	43,410
Commercial real estate:
Office, retail, and industrial		43,884		1,347,245		1,391,129		5,563		12,790		18,353
Multi-family		7,899		300,351		308,250		-		4,789		4,789
Residential construction		15,734		73,174		88,908		3,020		9,880		12,900
Other commercial real estate		52,247		912,450		964,697		4,807		20,027		24,834
Total commercial real estate		119,764		2,633,220		2,752,984		13,390		47,486		60,876
Total corporate loans		168,092		4,455,061		4,623,153		25,567		78,719		104,286
Consumer		-		674,873		674,873		-		13,414		13,414
Total loans, excluding covered loans		168,092		5,129,934		5,298,026		25,567		92,133		117,700
Covered loans (1)		-		44,972		44,972		-		982		982
Total loans included in the calculation of the allowance for credit losses	$	168,092	$	5,174,906	$	5,342,998	$	25,567	$	93,115	$	118,682
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 (1)		-		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]

	June 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	$	15,648	$	31,703	$	72,375	$	12,041	$	10,801	$	26,028	$	58,591	$	14,827
Agricultural		411		566		977		136		556		-		556		-
Commercial real estate:
Office, retail, and industrial		14,485		29,399		55,898		5,563		11,897		16,319		33,785		1,507
Multi-family		7,899		-		13,135		-		5,072		517		11,265		20
Residential construction		9,157		6,577		31,291		3,020		9,718		7,660		33,124		2,502
Commercial construction		6,938		14,882		28,824		659		19,019		3,790		28,534		758
Other commercial real estate		11,079		19,348		39,121		4,148		26,027		22,083		70,868		6,481
Total commercial real estate		49,558		70,206		168,269		13,390		71,733		50,369		177,576		11,268
Total impaired loans individually evaluated for impairment	$	65,617	$	102,475	$	241,621	$	25,567	$	83,090	$	76,397	$	236,723	$	26,095

Troubled Debt Restructuring by Class [Table Text Block]

	As of June 30, 2012						As of December 31, 2011
	Accruing (1)		Non-accrual (2)		Total		Accruing (1)		Non-accrual (2)		Total
Commercial and industrial	$	175	$	1,380	$	1,555	$	1,451	$	897	$	2,348
Agricultural		-		-		-		-		-		-
Commercial real estate:
Office, retail, and industrial		620		220		840		1,742		-		1,742
Multi-family		-		1,758		1,758		11,107		1,758		12,865
Residential construction		-		-		-		-		-		-
Commercial construction		-		14,006		14,006		-		14,006		14,006
Other commercial real estate		5,883		6,025		11,908		227		11,417		11,644
Total commercial real estate		6,503		22,009		28,512		13,076		27,181		40,257
Total corporate loans		6,678		23,389		30,067		14,527		28,078		42,605
Home equity		21		395		416		1,093		471		1,564
1-4 family mortgages		1,112		1,077		2,189		2,089		1,293		3,382
Installment loans		-		-		-		155		-		155
Total consumer loans		1,133		1,472		2,605		3,337		1,764		5,101
Total loans	$	7,811	$	24,861	$	32,672	$	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
Six months ended June 30, 2012
Commercial and industrial		1	$	252	$	-	$	-	$	170	$	82
Office, retail, and industrial		1		625		-		-		-		625
Other commercial real estate		7		11,906		-		-		652		11,254
1-4 family mortgages		4		563		-		4		-		567
Total TDRs restructured during the period		13	$	13,346	$	-	$	4	$	822	$	12,528
Six Months Ended June 30, 2011
Commercial and industrial		5	$	223	$	-	$	7	$	-	$	230
Office, retail, and industrial		3		3,407		293		9		-		3,709
Other commercial real estate		1		174		-		74		-		248
Home equity		7		388		-		13		-		401
1-4 family mortgages		8		831		-		35		-		866
Installment loans		1		151		-		4		-		155
Total TDRs restructured during the period		25	$	5,174	$	293	$	142	$	-	$	5,609

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

	Six Months Ended
	June 30, 2012			June 30, 2011
	Number of Loans	Recorded Investment		Number of Loans	Recorded Investment
Office, retail, and industrial	1	$	220	-	$	-
Home equity	-		-	1		83
1-4 family mortgages	1		62	1		141
Total restructured loans	2	$	282	2	$	224

Financing Receivable Credit Quality Indicators [Table Text Block]

	Pass		Special Mention (1)		Substandard (2)		Non-accrual (3)		Total
June 30, 2012
Commercial and industrial	$	1,463,066	$	44,486	$	34,517	$	55,358	$	1,597,427
Agricultural		261,483		9,827		139		1,293		272,742
Commercial real estate:
Office, retail, and industrial		1,240,144		73,779		30,577		46,629		1,391,129
Multi-family		294,578		3,185		1,644		8,843		308,250
Residential construction		38,889		18,531		13,988		17,500		88,908
Commercial construction		98,619		15,942		11,084		21,981		147,626
Other commercial real estate		705,668		43,424		33,787		34,192		817,071
Total commercial real estate		2,377,898		154,861		91,080		129,145		2,752,984
Total corporate loans	$	4,102,447	$	209,174	$	125,736	$	185,796	$	4,623,153
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
June 30, 2012
Home equity	$	391,183	$	7,245	$	398,428
1-4 family mortgages		231,875		5,466		237,341
Installment loans		39,103		1		39,104
Total consumer loans	$	662,161	$	12,712	$	674,873
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]

	Six Months Ended June 30, 2012				Six Months Ended June 30, 2011
	Average Recorded Investment Balance		Interest Income Recognized (1)		Average Recorded Investment Balance		Interest Income Recognized (1)
Commercial and industrial	$	50,626	$	9	$	51,863	$	10
Agricultural		927		-		1,796		-
Commercial real estate:
Office, retail, and industrial		32,015		-		18,989		21
Multi-family		7,976		-		4,736		2
Residential construction		18,493		-		41,455		27
Commercial construction		21,554		-		25,191		-
Other commercial real estate		45,985		6		37,968		18
Total commercial real estate		126,023		6		128,339		68
Total impaired loans individually evaluated for impairment	$	177,576	$	15	$	181,998	$	78