Loans (Tables)

3 Months Ended

Mar. 31, 2016

Receivables [Abstract]

Summary of loans under portfolio

A summary of loans follows:

	March 31, 2016		December 31, 2015		March 31, 2015
	(In thousands)
Commercial loan portfolio:
Commercial	$	1,922,259	$	1,905,879	$	1,356,169
Commercial real estate	2,143,051		2,112,162		1,616,923
Real estate construction and land development	242,899		232,076		108,839
Subtotal	4,308,209		4,250,117		3,081,931
Consumer loan portfolio:
Residential mortgage	1,461,120		1,429,636		1,117,445
Consumer installment	897,078		877,457		844,066
Home equity	700,478		713,937		659,432
Subtotal	3,058,676		3,021,030		2,620,943
Total loans	$	7,366,885	$	7,271,147	$	5,702,874

Recorded investment of loans in the commercial loan portfolio by risk rating categories

The following schedule presents the recorded investment of loans in the commercial loan portfolio by risk rating categories at March 31, 2016, December 31, 2015 and March 31, 2015:

	Commercial		Commercial Real Estate		Real Estate Construction and Land Development		Total
	(In thousands)
March 31, 2016
Originated Portfolio:
Risk Grades 1-5	$	1,466,094	$	1,409,991	$	196,982	$	3,073,067
Risk Grade 6	43,129		44,210		1,163		88,502
Risk Grade 7	35,437		20,250		977		56,664
Risk Grade 8	17,595		25,858		546		43,999
Risk Grade 9	1,669		1		—		1,670
Subtotal	1,563,924		1,500,310		199,668		3,263,902
Acquired Portfolio:
Risk Grades 1-5	319,672		590,151		39,260		949,083
Risk Grade 6	25,978		17,692		1,539		45,209
Risk Grade 7	11,103		30,679		1,273		43,055
Risk Grade 8	1,582		4,219		1,159		6,960
Risk Grade 9	—		—		—		—
Subtotal	358,335		642,741		43,231		1,044,307
Total	$	1,922,259	$	2,143,051	$	242,899	$	4,308,209
December 31, 2015
Originated Portfolio:
Risk Grades 1-5	$	1,418,301	$	1,341,202	$	183,323	$	2,942,826
Risk Grade 6	34,727		31,036		180		65,943
Risk Grade 7	39,933		26,658		1,123		67,714
Risk Grade 8	26,459		25,163		521		52,143
Risk Grade 9	2,095		—		—		2,095
Subtotal	1,521,515		1,424,059		185,147		3,130,721
Acquired Portfolio:
Risk Grades 1-5	340,782		629,430		41,683		1,011,895
Risk Grade 6	28,321		23,926		2,556		54,803
Risk Grade 7	11,607		29,975		1,537		43,119
Risk Grade 8	3,654		4,772		1,153		9,579
Risk Grade 9	—		—		—		—
Subtotal	384,364		688,103		46,929		1,119,396
Total	$	1,905,879	$	2,112,162	$	232,076	$	4,250,117
March 31, 2015
Originated Portfolio:
Risk Grades 1-5	$	1,176,021	$	1,175,373	$	96,497	$	2,447,891
Risk Grade 6	40,999		44,248		738		85,985
Risk Grade 7	28,983		27,961		1,997		58,941
Risk Grade 8	18,904		24,760		953		44,617
Risk Grade 9	—		6		—		6
Subtotal	1,264,907		1,272,348		100,185		2,637,440
Acquired Portfolio:
Risk Grades 1-5	71,422		318,113		6,724		396,259
Risk Grade 6	11,299		7,786		253		19,338
Risk Grade 7	6,509		12,735		140		19,384
Risk Grade 8	2,032		5,941		1,537		9,510
Risk Grade 9	—		—		—		—
Subtotal	91,262		344,575		8,654		444,491
Total	$	1,356,169	$	1,616,923	$	108,839	$	3,081,931

Recorded investment of loans in the consumer loan portfolio based on the credit risk profile of loans in a performing and nonperforming status

The following schedule presents the recorded investment of loans in the consumer loan portfolio based on loans in a performing status and loans in a nonperforming status at March 31, 2016, December 31, 2015 and March 31, 2015:

	Residential Mortgage		Consumer Installment		Home Equity		Total Consumer
	(In thousands)
March 31, 2016
Originated Loans:
Performing	$	1,253,670	$	889,792	$	582,485	$	2,725,947
Nonperforming	8,498		360		3,007		11,865
Subtotal	1,262,168		890,152		585,492		2,737,812
Acquired Loans:
Performing	197,075		6,881		113,989		317,945
Nonperforming	1,877		45		997		2,919
Subtotal	198,952		6,926		114,986		320,864
Total	$	1,461,120	$	897,078	$	700,478	$	3,058,676
December 31, 2015
Originated Loans:
Performing	$	1,207,945	$	868,975	$	587,566	$	2,664,486
Nonperforming	9,030		451		3,246		12,727
Subtotal	1,216,975		869,426		590,812		2,677,213
Acquired Loans:
Performing	210,580		7,984		122,118		340,682
Nonperforming	2,081		47		1,007		3,135
Subtotal	212,661		8,031		123,125		343,817
Total	$	1,429,636	$	877,457	$	713,937	$	3,021,030
March 31, 2015
Originated Loans:
Performing	$	998,196	$	834,926	$	565,992	$	2,399,114
Nonperforming	9,376		433		2,299		12,108
Subtotal	1,007,572		835,359		568,291		2,411,222
Acquired Loans:
Performing	109,005		8,696		90,686		208,387
Nonperforming	868		11		455		1,334
Subtotal	109,873		8,707		91,141		209,721
Total	$	1,117,445	$	844,066	$	659,432	$	2,620,943

Summary of nonperforming loans

A summary of nonperforming loans follows:

	March 31, 2016		December 31, 2015		March 31, 2015
	(In thousands)
Nonaccrual loans:
Commercial	$	19,264	$	28,554	$	18,904
Commercial real estate	25,859		25,163		24,766
Real estate construction and land development	546		521		953
Residential mortgage	5,062		5,557		6,514
Consumer installment	360		451		433
Home equity	2,328		1,979		1,870
Total nonaccrual loans	53,419		62,225		53,440
Accruing loans contractually past due 90 days or more as to interest or principal payments:
Commercial	370		364		52
Commercial real estate	—		254		148
Residential mortgage	423		402		172
Home equity	679		1,267		429
Total accruing loans contractually past due 90 days or more as to interest or principal payments	1,472		2,287		801
Nonperforming TDRs:
Commercial loan portfolio	15,351		16,297		15,810
Consumer loan portfolio	3,013		3,071		2,690
Total nonperforming TDRs	18,364		19,368		18,500
Total nonperforming loans	$	73,255	$	83,880	$	72,741

Schedule of Impaired loans by classes

The following schedule presents impaired loans by classes of loans at March 31, 2016, December 31, 2015 and March 31, 2015:

	Recorded Investment		Unpaid Principal Balance		Related Valuation Allowance
	(In thousands)
March 31, 2016
Impaired loans with a valuation allowance:
Commercial	$	4,944	$	4,949	$	1,926
Commercial real estate	3,558		4,016		810
Residential mortgage	21,003		21,003		180
Subtotal	29,505		29,968		2,916
Impaired loans with no related valuation allowance:
Commercial	35,353		45,042		—
Commercial real estate	54,097		67,744		—
Real estate construction and land development	2,164		3,104		—
Residential mortgage	6,939		7,793		—
Consumer installment	405		418		—
Home equity	3,325		3,617		—
Subtotal	102,283		127,718		—
Total impaired loans:
Commercial	40,297		49,991		1,926
Commercial real estate	57,655		71,760		810
Real estate construction and land development	2,164		3,104		—
Residential mortgage	27,942		28,796		180
Consumer installment	405		418		—
Home equity	3,325		3,617		—
Total	$	131,788	$	157,686	$	2,916
December 31, 2015
Impaired loans with a valuation allowance:
Commercial	$	18,898	$	19,426	$	5,700
Commercial real estate	4,448		4,688		497
Residential mortgage	21,037		21,037		192
Subtotal	44,383		45,151		6,389
Impaired loans with no related valuation allowance:
Commercial	31,039		37,703		—
Commercial real estate	53,518		69,130		—
Real estate construction and land development	2,136		3,108		—
Residential mortgage	7,638		8,644		—
Consumer installment	498		512		—
Home equity	2,986		3,270		—
Subtotal	97,815		122,367		—
Total impaired loans:
Commercial	49,937		57,129		5,700
Commercial real estate	57,966		73,818		497
Real estate construction and land development	2,136		3,108		—
Residential mortgage	28,675		29,681		192
Consumer installment	498		512		—
Home equity	2,986		3,270		—
Total	$	142,198	$	167,518	$	6,389

	Recorded Investment		Unpaid Principal Balance		Related Valuation Allowance
	(In thousands)
March 31, 2015
Impaired loans with a valuation allowance:
Commercial	$	3,433	$	3,527	$	1,119
Commercial real estate	1,780		1,961		496
Residential mortgage	19,887		19,887		297
Subtotal	25,100		25,375		1,912
Impaired loans with no related valuation allowance:
Commercial	33,733		39,382		—
Commercial real estate	57,628		79,696		—
Real estate construction and land development	2,540		4,264		—
Residential mortgage	7,382		7,382		—
Consumer installment	444		444		—
Home equity	2,325		2,325		—
Subtotal	104,052		133,493		—
Total impaired loans:
Commercial	37,166		42,909		1,119
Commercial real estate	59,408		81,657		496
Real estate construction and land development	2,540		4,264		—
Residential mortgage	27,269		27,269		297
Consumer installment	444		444		—
Home equity	2,325		2,325		—
Total	$	129,152	$	158,868	$	1,912

Schedule presents information related to impaired loans

The following schedule presents information related to impaired loans for the three months ended March 31, 2016 and 2015:

	Average Recorded Investment		Interest Income Recognized While on Impaired Status
	(In thousands)
Three Months Ended March 31, 2016
Commercial	$	45,017	$	329
Commercial real estate	57,956		458
Real estate construction and land development	2,068		25
Residential mortgage	28,092		366
Consumer installment	387		1
Home equity	3,252		15
Total	$	136,772	$	1,194

Three Months Ended March 31, 2015
Commercial	$	38,576	$	289
Commercial real estate	60,240		525
Real estate construction and land development	2,515		27
Residential mortgage	27,352		331
Consumer installment	499		—
Home equity	2,352		8
Total	$	131,534	$	1,180

Schedule representing the aging status of the recorded investment in loans by classes

The following schedule presents the aging status of the recorded investment in loans by classes of loans at March 31, 2016, December 31, 2015 and March 31, 2015:

	31-60 Days Past Due		61-89 Days Past Due		Accruing Loans Past Due 90 Days or More		Non-accrual Loans		Total Past Due		Current		Total Loans
	(In thousands)
March 31, 2016
Originated Portfolio:
Commercial	$	4,069	$	7,359	$	370	$	19,264	$	31,062	$	1,532,862	$	1,563,924
Commercial real estate	3,096		376		—		25,859		29,331		1,470,979		1,500,310
Real estate construction and land development	216		—		—		546		762		198,906		199,668
Residential mortgage	757		23		423		5,062		6,265		1,255,903		1,262,168
Consumer installment	2,158		336		—		360		2,854		887,298		890,152
Home equity	1,632		323		679		2,328		4,962		580,530		585,492
Total	$	11,928	$	8,417	$	1,472	$	53,419	$	75,236	$	5,926,478	$	6,001,714
Acquired Portfolio:
Commercial	$	55	$	70	$	1,582	$	—	$	1,707	$	356,628	$	358,335
Commercial real estate	249		557		4,459		—		5,265		637,476		642,741
Real estate construction and land development	—		—		1,159		—		1,159		42,072		43,231
Residential mortgage	301		—		1,877		—		2,178		196,774		198,952
Consumer installment	59		—		45		—		104		6,822		6,926
Home equity	543		511		997		—		2,051		112,935		114,986
Total	$	1,207	$	1,138	$	10,119	$	—	$	12,464	$	1,352,707	$	1,365,171

	31-60 Days Past Due		61-89 Days Past Due		Accruing Loans Past Due 90 Days or More		Non-accrual Loans		Total Past Due		Current		Total Loans
	(In thousands)
December 31, 2015
Originated Portfolio:
Commercial	$	3,685	$	1,230	$	364	$	28,554	$	33,833	$	1,487,682	$	1,521,515
Commercial real estate	4,168		1,603		254		25,163		31,188		1,392,871		1,424,059
Real estate construction and land development	—		—		—		521		521		184,626		185,147
Residential mortgage	1,737		—		402		5,557		7,696		1,209,279		1,216,975
Consumer installment	3,145		644		—		451		4,240		865,186		869,426
Home equity	1,767		788		1,267		1,979		5,801		585,011		590,812
Total	$	14,502	$	4,265	$	2,287	$	62,225	$	83,279	$	5,724,655	$	5,807,934
Acquired Portfolio:
Commercial	$	490	$	532	$	3,735	$	—	$	4,757	$	379,607	$	384,364
Commercial real estate	3,557		691		4,771		—		9,019		679,084		688,103
Real estate construction and land development	—		—		1,154		—		1,154		45,775		46,929
Residential mortgage	1,370		—		2,081		—		3,451		209,210		212,661
Consumer installment	55		—		47		—		102		7,929		8,031
Home equity	847		78		1,007		—		1,932		121,193		123,125
Total	$	6,319	$	1,301	$	12,795	$	—	$	20,415	$	1,442,798	$	1,463,213
March 31, 2015
Originated Portfolio:
Commercial	$	10,121	$	729	$	52	$	18,904	$	29,806	$	1,235,101	$	1,264,907
Commercial real estate	7,238		2,267		148		24,766		34,419		1,237,929		1,272,348
Real estate construction and land development	340		—		—		953		1,293		98,892		100,185
Residential mortgage	1,246		88		172		6,514		8,020		999,552		1,007,572
Consumer installment	2,143		344		—		433		2,920		832,439		835,359
Home equity	1,728		197		429		1,870		4,224		564,067		568,291
Total	$	22,816	$	3,625	$	801	$	53,440	$	80,682	$	4,967,980	$	5,048,662
Acquired Portfolio:
Commercial	$	59	$	5	$	2,089	$	—	$	2,153	$	89,109	$	91,262
Commercial real estate	1,784		138		6,271		—		8,193		336,382		344,575
Real estate construction and land development	—		—		1,537		—		1,537		7,117		8,654
Residential mortgage	104		—		868		—		972		108,901		109,873
Consumer installment	3		1		11		—		15		8,692		8,707
Home equity	349		234		455		—		1,038		90,103		91,141
Total	$	2,299	$	378	$	11,231	$	—	$	13,908	$	640,304	$	654,212

Schedule of Corporation's TDRs

The following schedule presents the Corporation’s TDRs at March 31, 2016, December 31, 2015 and March 31, 2015:

	Performing TDRs		Non-Performing TDRs		Nonaccrual TDRs		Total
	(In thousands)
March 31, 2016
Commercial loan portfolio	$	31,896	$	15,351	$	29,368	$	76,615
Consumer loan portfolio	17,990		3,013		3,146		24,149
Total	$	49,886	$	18,364	$	32,514	$	100,764
December 31, 2015
Commercial loan portfolio	$	29,844	$	16,297	$	32,682	$	78,823
Consumer loan portfolio	17,966		3,071		3,251		24,288
Total	$	47,810	$	19,368	$	35,933	$	103,111
March 31, 2015
Commercial loan portfolio	$	28,784	$	15,810	$	32,917	$	77,511
Consumer loan portfolio	17,197		2,690		4,426		24,313
Total	$	45,981	$	18,500	$	37,343	$	101,824

Schedule providing information on TDRs

The following schedule provides information on the Corporation's TDRs that were modified during the three months ended March 31, 2016 and 2015:

	Number of Loans	Pre- Modification Recorded Investment		Post- Modification Recorded Investment
	(Dollars in thousands)
Three Months Ended March 31, 2016
Commercial loan portfolio:
Commercial	7	$	3,832	$	3,832
Commercial real estate	4	987		987
Subtotal – commercial loan portfolio	11	4,819		4,819
Consumer loan portfolio	7	204		204
Total	18	$	5,023	$	5,023

Three Months Ended March 31, 2015
Commercial loan portfolio:
Commercial	5	$	1,932	$	1,932
Commercial real estate	5	2,534		2,534
Subtotal – commercial loan portfolio	10	4,466		4,466
Consumer loan portfolio	10	336		336
Total	20	$	4,802	$	4,802

Troubled debt restructurings on financing receivables with defaults payment

The following schedule includes TDRs for which there was a payment default during the three months ended March 31, 2016 and 2015, whereby the borrower was past due with respect to principal and/or interest for 90 days or more, and the loan became a TDR during the twelve-month period prior to the default:

	Number of Loans	Principal Balance at End of Period
	(Dollars in thousands)
Three Months Ended March 31, 2016
Commercial loan portfolio:
Commercial	—	$	—
Commercial real estate	1	933
Subtotal – commercial loan portfolio	1	933
Consumer loan portfolio	1	—
Total	2	$	933
Three Months Ended March 31, 2015
Commercial loan portfolio:
Commercial	—	$	—
Commercial real estate	3	759
Subtotal – commercial loan portfolio	3	759
Consumer loan portfolio	1	33
Total	4	$	792

Schedule of allowance and recorded investment related to financing receivables segregated by portfolio segment

The following schedule presents, by loan portfolio segment, the changes in the allowance for the three months ended March 31, 2016 and details regarding the balance in the allowance and the recorded investment in loans at March 31, 2016 by impairment evaluation method.

	Commercial Loan Portfolio			Consumer Loan Portfolio			Unallocated		Total
	(In thousands)
Changes in allowance for loan losses for the three months ended March 31, 2016:
Beginning balance	$	47,234		$	26,094		$	—	$	73,328
Provision for loan losses	1,000			500			—		1,500
Charge-offs	(3,896		)	(1,562		)	—		(5,458		)
Recoveries	330			618			—		948
Ending balance	$	44,668		$	25,650		$	—	$	70,318
Allowance for loan losses balance at March 31, 2016 attributable to:
Loans individually evaluated for impairment	$	2,736		$	180		$	—	$	2,916
Loans collectively evaluated for impairment	41,932			25,470			—		67,402
Loans acquired with deteriorated credit quality	—			—			—		—
Total	$	44,668		$	25,650		$	—	$	70,318
Recorded investment (loan balance) at March 31, 2016:
Loans individually evaluated for impairment	$	92,916		$	21,003		$	—	$	113,919
Loans collectively evaluated for impairment	3,170,986			2,716,809			—		5,887,795
Loans acquired with deteriorated credit quality	1,044,307			320,864			—		1,365,171
Total	$	4,308,209		$	3,058,676		$	—	$	7,366,885

The following schedule presents, by loan portfolio segment, details regarding the balance in the allowance and the recorded investment in loans at December 31, 2015 by impairment evaluation method.

	Commercial Loan Portfolio		Consumer Loan Portfolio		Unallocated		Total
	(In thousands)
Allowance for loan losses balance at December 31, 2015 attributable to:
Loans individually evaluated for impairment	$	6,197	$	192	$	—	$	6,389
Loans collectively evaluated for impairment	41,037		25,902		—		66,939
Loans acquired with deteriorated credit quality	—		—		—		—
Total	$	47,234	$	26,094	$	—	$	73,328
Recorded investment (loan balance) at December 31, 2015:
Loans individually evaluated for impairment	$	100,379	$	21,037	$	—	$	121,416
Loans collectively evaluated for impairment	3,030,342		2,656,176		—		5,686,518
Loans acquired with deteriorated credit quality	1,119,396		343,817		—		1,463,213
Total	$	4,250,117	$	3,021,030	$	—	$	7,271,147

The following schedule presents, by loan portfolio segment, the changes in the allowance for the three months ended March 31, 2015 and details regarding the balance in the allowance and the recorded investment in loans at March 31, 2015 by impairment evaluation method.

	Commercial Loan Portfolio			Consumer Loan Portfolio			Unallocated		Total
	(In thousands)
Changes in allowance for loan losses for the three months ended March 31, 2015:
Beginning balance	$	44,156		$	28,803		$	2,724	$	75,683
Provision for loan losses	3,593			(3,227		)	1,134		1,500
Charge-offs	(1,504		)	(1,639		)	—		(3,143		)
Recoveries	574			642			—		1,216
Ending balance	$	46,819		$	24,579		$	3,858	$	75,256
Allowance for loan losses balance at March 31, 2015 attributable to:
Loans individually evaluated for impairment	$	1,615		$	297		$	—	$	1,912
Loans collectively evaluated for impairment	45,204			24,282			3,858		73,344
Loans acquired with deteriorated credit quality	—			—			—		—
Total	$	46,819		$	24,579		$	3,858	$	75,256
Recorded investment (loan balance) at March 31, 2015:
Loans individually evaluated for impairment	$	89,217		$	19,887		$	—	$	109,104
Loans collectively evaluated for impairment	2,548,223			2,391,335			—		4,939,558
Loans acquired with deteriorated credit quality	444,491			209,721			—		654,212
Total	$	3,081,931		$	2,620,943		$	—	$	5,702,874