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Loans (Tables)

6 Months Ended

Jun. 30, 2014

Loans were as follows:



	June 30, 2014			Percentage of Total		December 31, 2013			Percentage of Total
Commercial and industrial:
Commercial	$	5,322,752		49.9	%	$	4,587,499		48.2	%
Leases	302,081			2.8		319,577			3.4
Total commercial and industrial	5,624,833			52.7		4,907,076			51.6
Commercial real estate:
Commercial mortgages	2,985,184			28.0		2,800,760			29.4
Construction	577,446			5.4		426,639			4.5
Land	272,959			2.5		239,937			2.5
Total commercial real estate	3,835,589			35.9		3,467,336			36.4
Consumer real estate:
Home equity loans	336,890			3.2		329,853			3.5
Home equity lines of credit	213,109			2.0		195,132			2.1
1-4 family residential mortgages	35,625			0.3		32,447			0.3
Construction	21,506			0.2		13,123			0.1
Other	256,085			2.4		237,649			2.5
Total consumer real estate	863,215			8.1		808,204			8.5
Total real estate	4,698,804			44.0		4,275,540			44.9
Consumer and other:
Consumer installment	371,648			3.4		350,827			3.7
Other	6,581			0.1		7,289			0.1
Total consumer and other	378,229			3.5		358,116			3.8
Unearned discounts	(22,489		)	(0.2	)	(25,032		)	(0.3	)
Total loans	$	10,679,377		100.0	%	$	9,515,700		100.0	%

Non-Accrual Loans, Segregated by Class of Loans

Non-accrual loans, segregated by class of loans, were as follows:



	June 30, 2014		December 31, 2013
Commercial and industrial:
Energy	$	525	$	590
Other commercial	34,139		26,143
Commercial real estate:
Buildings, land and other	21,833		27,035
Construction	301		—
Consumer real estate	2,179		2,207
Consumer and other	654		745
Total	$	59,631	$	56,720

Age Analysis of Past Due Loans, Segregated by Class of Loans

An age analysis of past due loans (including both accruing and non-accruing loans), segregated by class of loans, as of June 30, 2014 was as follows:



	Loans 30-89 Days Past Due		Loans 90 or More Days Past Due		Total Past Due Loans		Current Loans			Total Loans			Accruing Loans 90 or More Days Past Due
Commercial and industrial:
Energy	$	1,808	$	525	$	2,333	$	1,528,313		$	1,530,646		$	—
Other commercial	17,242		8,951		26,193		4,067,994			4,094,187			4,048
Commercial real estate:
Buildings, land and other	14,201		11,936		26,137		3,232,006			3,258,143			1,039
Construction	301		—		301		577,145			577,446			—
Consumer real estate	4,305		2,512		6,817		856,398			863,215			2,204
Consumer and other	3,053		777		3,830		374,399			378,229			585
Unearned discounts	—		—		—		(22,489		)	(22,489		)	—
Total	$	40,910	$	24,701	$	65,611	$	10,613,766		$	10,679,377		$	7,876

Impaired Loans

Impaired loans are set forth in the following table. No interest income was recognized on impaired loans subsequent to their classification as impaired.



	Unpaid Contractual Principal Balance		Recorded Investment With No Allowance		Recorded Investment With Allowance		Total Recorded Investment		Related Allowance
June 30, 2014
Commercial and industrial:
Energy	$	545	$	525	$	—	$	525	$	—
Other commercial	40,764		29,322		1,805		31,127		613
Commercial real estate:
Buildings, land and other	25,390		18,894		998		19,892		776
Construction	478		301		—		301		—
Consumer real estate	881		689		—		689		—
Consumer and other	299		252		—		252		—
Total	$	68,357	$	49,983	$	2,803	$	52,786	$	1,389
December 31, 2013
Commercial and industrial:
Energy	$	545	$	531	$	—	$	531	$	—
Other commercial	31,429		15,337		7,004		22,341		4,140
Commercial real estate:
Buildings, land and other	27,792		15,697		8,870		24,567		2,786
Construction	—		—		—		—		—
Consumer real estate	907		745		—		745		—
Consumer and other	334		278		—		278		—
Total	$	61,007	$	32,588	$	15,874	$	48,462	$	6,926

Average Recorded Investment In Impaired Loans

The average recorded investment in impaired loans was as follows:



	Three Months Ended June 30,				Six Months Ended June 30,
	2014		2013		2014		2013
Commercial and industrial:
Energy	$	526	$	—	$	527	$	356
Other commercial	25,259		40,331		24,286		40,489
Commercial real estate:
Buildings, land and other	20,460		37,473		21,829		37,035
Construction	307		1,035		204		1,057
Consumer real estate	704		818		717		833
Consumer and other	258		375		265		383
Total	$	47,514	$	80,032	$	47,828	$	80,153

Troubled Debt Restructurings

Troubled debt restructurings during the six months ended June 30, 2014 and June 30, 2013 are set forth in the following table.



	Six Months Ended June 30, 2014				Six Months Ended June 30, 2013
	Balance at Restructure		Balance at Period-End		Balance at Restructure		Balance at Period-End
Commercial and industrial:
Other commercial	$	3,752	$	3,672	$	2,138	$	1,343
Commercial real estate:
Buildings, land and other	3,122		3,069		4,165		3,726
	$	6,874	$	6,741	$	6,303	$	5,069

Weighted Average Risk Grades for All Commercial Loans by Class

The following table presents weighted average risk grades for all commercial loans by class.



	June 30, 2014			December 31, 2013
	Weighted Average Risk Grade	Loans		Weighted Average Risk Grade	Loans
Commercial and industrial:
Energy
Risk grades 1-8	5.18	$	1,498,846	5.37	$	1,106,348
Risk grade 9	9.00	23,819		9.00	7,726
Risk grade 10	10.00	1,138		10.00	245
Risk grade 11	11.00	6,318		11.00	500
Risk grade 12	12.00	525		12.00	590
Risk grade 13	13.00	—		13.00	—
Total energy	5.27	$	1,530,646	5.40	$	1,115,409
Other commercial
Risk grades 1-8	5.91	$	3,828,593	5.95	$	3,507,963
Risk grade 9	9.00	68,090		9.00	74,766
Risk grade 10	10.00	88,123		10.00	89,878
Risk grade 11	11.00	75,242		11.00	92,917
Risk grade 12	12.00	32,854		12.00	21,389
Risk grade 13	13.00	1,285		13.00	4,754
Total other commercial	6.19	$	4,094,187	6.27	$	3,791,667
Commercial real estate:
Buildings, land and other
Risk grades 1-8	6.50	$	3,041,659	6.59	$	2,844,665
Risk grade 9	9.00	116,775		9.00	65,770
Risk grade 10	10.00	35,763		10.00	49,881
Risk grade 11	11.00	42,112		11.00	53,208
Risk grade 12	12.00	21,058		12.00	24,387
Risk grade 13	13.00	776		13.00	2,786
Total commercial real estate	6.72	$	3,258,143	6.83	$	3,040,697
Construction
Risk grades 1-8	6.84	$	572,960	7.05	$	418,999
Risk grade 9	9.00	2,629		9.00	1,301
Risk grade 10	10.00	1,343		10.00	5,931
Risk grade 11	11.00	213		11.00	408
Risk grade 12	12.00	301		12.00	—
Risk grade 13	13.00	—		13.00	—
Total construction	6.86	$	577,446	7.10	$	426,639

Net (Charge-Offs)/Recoveries, Segregated by Class of Loans

Net (charge-offs)/recoveries, segregated by class of loans, were as follows:



	Three Months Ended June 30,						Six Months Ended June 30,
	2014			2013			2014			2013
Commercial and industrial:
Energy	$	460		$	—		$	447		$	(900	)
Other commercial	(1,594		)	(2,883		)	(3,277		)	(18,510		)
Commercial real estate:
Buildings, land and other	(400		)	(244		)	(2,018		)	(29		)
Construction	275			116			315			230
Consumer real estate	(27		)	15			(4		)	(261		)
Consumer and other	(508		)	(768		)	(1,139		)	(1,158		)
Total	$	(1,794	)	$	(3,764	)	$	(5,676	)	$	(20,628	)

Unallocated Portion of Allowance for Loan Losses

The following table presents details of the allowance for loan losses, segregated by loan portfolio segment.



	Commercial and Industrial			Commercial Real Estate			Consumer Real Estate			Consumer and Other			Unallocated		Total
June 30, 2014
Historical valuation allowances	$	37,103		$	14,226		$	2,081		$	10,054		$	—	$	63,464
Specific valuation allowances	613			776			—			—			—		1,389
General valuation allowances:
Environmental risk adjustment	7,363			3,409			470			2,497			—		13,739
Distressed industries	4,006			17			—			—			—		4,023
Excessive industry concentrations	1,482			201			—			—			—		1,683
Large relationship concentrations	1,833			1,247			—			—			—		3,080
Highly-leveraged credit relationships	5,752			1,212			—			—			—		6,964
Policy exceptions	—			—			—			—			2,829		2,829
Credit and collateral exceptions	—			—			—			—			2,162		2,162
Loans not reviewed by concurrence	2,189			2,303			2,324			1,170			—		7,986
Adjustment for recoveries	(4,669		)	(1,345		)	(216		)	(7,294		)	—		(13,524		)
General macroeconomic risk	—			—			—			—			4,491		4,491
Total	$	55,672		$	22,046		$	4,659		$	6,427		$	9,482	$	98,286
December 31, 2013
Historical valuation allowances	$	29,357		$	13,042		$	2,644		$	8,695		$	—	$	53,738
Specific valuation allowances	4,140			2,786			—			—			—		6,926
General valuation allowances:
Environmental risk adjustment	5,497			3,314			664			2,331			—		11,806
Distressed industries	7,812			384			—			—			—		8,196
Excessive industry concentrations	1,499			367			—			—			—		1,866
Large relationship concentrations	1,529			1,081			—			—			—		2,610
Highly-leveraged credit relationships	4,535			619			—			—			—		5,154
Policy exceptions	—			—			—			—			2,492		2,492
Credit and collateral exceptions	—			—			—			—			1,398		1,398
Loans not reviewed by concurrence	2,009			2,201			2,250			1,064			—		7,524
Adjustment for recoveries	(3,588		)	(1,204		)	(328		)	(7,080		)	—		(12,200		)
General macroeconomic risk	—			—			—			—			2,928		2,928
Total	$	52,790		$	22,590		$	5,230		$	5,010		$	6,818	$	92,438

Activity in Allowance for Loan Losses by Portfolio Segment

The following table details activity in the allowance for loan losses by portfolio segment for the three and six months ended June 30, 2014 and 2013. Allocation of a portion of the allowance to one category of loans does not preclude its availability to absorb losses in other categories.



	Commercial and Industrial			Commercial Real Estate			Consumer Real Estate			Consumer and Other			Unallocated			Total
Three months ended:
June 30, 2014
Beginning balance	$	57,054		$	21,020		$	4,533		$	5,691		$	6,858		$	95,156
Provision for loan losses	(248		)	1,151			153			1,244			2,624			4,924
Charge-offs	(3,028		)	(935		)	(105		)	(2,269		)	—			(6,337		)
Recoveries	1,894			810			78			1,761			—			4,543
Net charge-offs	(1,134		)	(125		)	(27		)	(508		)	—			(1,794		)
Ending balance	$	55,672		$	22,046		$	4,659		$	6,427		$	9,482		$	98,286

June 30, 2013
Beginning balance	$	51,085		$	24,809		$	5,148		$	3,724		$	8,823		$	93,589
Provision for loan losses	2,612			(1,108		)	(246		)	1,174			1,143			3,575
Charge-offs	(3,586		)	(415		)	(159		)	(2,374		)	—			(6,534		)
Recoveries	703			287			174			1,606			—			2,770
Net charge-offs	(2,883		)	(128		)	15			(768		)	—			(3,764		)
Ending balance	$	50,814		$	23,573		$	4,917		$	4,130		$	9,966		$	93,400

Six months ended:
June 30, 2014
Beginning balance	$	52,790		$	22,590		$	5,230		$	5,010		$	6,818		$	92,438
Provision for loan losses	5,712			1,159			(567		)	2,556			2,664			11,524
Charge-offs	(5,395		)	(2,726		)	(126		)	(4,756		)	—			(13,003		)
Recoveries	2,565			1,023			122			3,617			—			7,327
Net charge-offs	(2,830		)	(1,703		)	(4		)	(1,139		)	—			(5,676		)
Ending balance	$	55,672		$	22,046		$	4,659		$	6,427		$	9,482		$	98,286

June 30, 2013
Beginning balance	$	54,164		$	29,346		$	5,252		$	3,507		$	12,184		$	104,453
Provision for loan losses	16,060			(5,974		)	(74		)	1,781			(2,218		)	9,575
Charge-offs	(20,738		)	(681		)	(495		)	(4,551		)	—			(26,465		)
Recoveries	1,328			882			234			3,393			—			5,837
Net charge-offs	(19,410		)	201			(261		)	(1,158		)	—			(20,628		)
Ending balance	$	50,814		$	23,573		$	4,917		$	4,130		$	9,966		$	93,400

Allowance for Loan Losses Disaggregated on the Basis of Impairment Methodology

The following table details the amount of the allowance for loan losses allocated to each portfolio segment as of June 30, 2014, December 31, 2013 and June 30, 2013, detailed on the basis of the impairment methodology used by the Corporation.



	Commercial and Industrial		Commercial Real Estate		Consumer Real Estate		Consumer and Other		Unallocated		Total
June 30, 2014
Loans individually evaluated for impairment	$	16,500	$	1,608	$	—	$	—	$	—	$	18,108
Loans collectively evaluated for impairment	39,172		20,438		4,659		6,427		9,482		80,178
Balance at June 30, 2014	$	55,672	$	22,046	$	4,659	$	6,427	$	9,482	$	98,286
December 31, 2013
Loans individually evaluated for impairment	$	16,682	$	3,914	$	—	$	—	$	—	$	20,596
Loans collectively evaluated for impairment	36,108		18,676		5,230		5,010		6,818		71,842
Balance at December 31, 2013	$	52,790	$	22,590	$	5,230	$	5,010	$	6,818	$	92,438
June 30, 2013
Loans individually evaluated for impairment	$	11,330	$	4,531	$	—	$	—	$	—	$	15,861
Loans collectively evaluated for impairment	39,484		19,042		4,917		4,130		9,966		77,539
Balance at June 30, 2013	$	50,814	$	23,573	$	4,917	$	4,130	$	9,966	$	93,400

Investment in Loans Related to Allowance for Loan Losses by Portfolio Segment Disaggregated Based on Impairment Methodology

The Corporation’s recorded investment in loans as of June 30, 2014, December 31, 2013 and June 30, 2013 related to each balance in the allowance for loan losses by portfolio segment and detailed on the basis of the impairment methodology used by the Corporation was as follows:



	Commercial and Industrial		Commercial Real Estate		Consumer Real Estate		Consumer and Other		Unearned Discounts			Total
June 30, 2014
Loans individually evaluated for impairment	$	205,485	$	101,566	$	689	$	252	$	—		$	307,992
Loans collectively evaluated for impairment	5,419,348		3,734,023		862,526		377,977		(22,489		)	10,371,385
Ending balance	$	5,624,833	$	3,835,589	$	863,215	$	378,229	$	(22,489	)	$	10,679,377
December 31, 2013
Loans individually evaluated for impairment	$	210,273	$	136,601	$	745	$	278	$	—		$	347,897
Loans collectively evaluated for impairment	4,696,803		3,330,735		807,459		357,838		(25,032		)	9,167,803
Ending balance	$	4,907,076	$	3,467,336	$	808,204	$	358,116	$	(25,032	)	$	9,515,700
June 30, 2013
Loans individually evaluated for impairment	$	126,402	$	147,196	$	802	$	365	$	—		$	274,765
Loans collectively evaluated for impairment	4,646,215		3,224,072		784,403		324,957		(21,869		)	8,957,778
Ending balance	$	4,772,617	$	3,371,268	$	785,205	$	325,322	$	(21,869	)	$	9,232,543