Loans (Tables)

3 Months Ended

Mar. 31, 2017

Dec. 31, 2016

Schedule of Non-Covered and Covered Loans

Loans consist of the following, segregated into legacy and acquired loans, for the periods indicated:



	March 31, 2017
(Dollars in thousands)	Legacy Loans		Acquired Loans		Total
Commercial loans:
Real estate	$	5,878,509	$	1,099,365	$	6,977,874
Commercial and industrial	3,140,205		315,373		3,455,578
Energy-related	562,515		1,108		563,623
	9,581,229		1,415,846		10,997,075

Residential mortgage loans:	901,859		394,499		1,296,358

Consumer and other loans:
Home equity	1,797,123		349,673		2,146,796
Indirect automobile	110,174		26		110,200
Other	533,059		48,714		581,773
	2,440,356		398,413		2,838,769
Total	$	12,923,444	$	2,208,758	$	15,132,202



	December 31, 2016
(Dollars in thousands)	Legacy Loans		Acquired Loans		Total
Commercial loans:
Real estate	$	5,623,314	$	1,178,952	$	6,802,266
Commercial and industrial	3,194,796		348,326		3,543,122
Energy-related	559,289		1,904		561,193
	9,377,399		1,529,182		10,906,581

Residential mortgage loans:	854,216		413,184		1,267,400

Consumer and other loans:
Home equity	1,783,421		372,505		2,155,926
Indirect automobile	131,048		4		131,052
Other	548,840		55,172		604,012
	2,463,309		427,681		2,890,990
Total	$	12,694,924	$	2,370,047	$	15,064,971

Schedule of Aging of Loans

The following tables provide an analysis of the aging of loans as of March 31, 2017 and December 31, 2016. Due to the difference in accounting for acquired loans, the tables below further segregate the Company’s loans between loans originated, or renewed and underwritten by the Company ("legacy loans") and acquired loans.



	March 31, 2017
	Legacy loans
	Accruing
(Dollars in thousands)	Current or less than 30 days past due		30-59 days		60-89 days		> 90 days		Total Past Due		Non-accrual Loans		Total Loans
Commercial real estate - Construction	$	880,721	$	187	$	1,431	$	—	$	1,618	$	—	$	882,339
Commercial real estate - Other	4,973,144		4,432		586		537		5,555		17,471		4,996,170
Commercial and industrial	3,102,314		6,399		224		373		6,996		30,895		3,140,205
Energy-related	447,128		—		—		2,175		2,175		113,212		562,515
Residential mortgage	884,571		2,692		1,628		—		4,320		12,968		901,859
Consumer - Home equity	1,779,409		7,868		1,945		—		9,813		7,901		1,797,123
Consumer - Indirect automobile	107,519		1,333		299		—		1,632		1,023		110,174
Consumer - Credit card	82,636		350		190		—		540		436		83,612
Consumer - Other	445,538		2,141		581		15		2,737		1,172		449,447
Total	$	12,702,980	$	25,402	$	6,884	$	3,100	$	35,386	$	185,078	$	12,923,444



	December 31, 2016
	Legacy loans
	Accruing
(Dollars in thousands)	Current or less than 30 days past due		30-59 days		60-89 days		> 90 days		Total Past Due		Non-accrual Loans		Total Loans
Commercial real estate - Construction	$	740,761	$	—	$	—	$	—	$	—	$	—	$	740,761
Commercial real estate - Other	4,863,902		1,861		351		—		2,212		16,439		4,882,553
Commercial and industrial	3,158,700		3,999		870		—		4,869		31,227		3,194,796
Energy-related	407,434		—		1,526		—		1,526		150,329		559,289
Residential mortgage	836,509		2,012		1,577		1,104		4,693		13,014		854,216
Consumer - Home equity	1,768,763		5,249		1,430		—		6,679		7,979		1,783,421
Consumer - Indirect automobile	127,054		2,551		405		—		2,956		1,038		131,048
Consumer - Credit card	81,602		199		99		—		298		624		82,524
Consumer - Other	462,650		2,155		618		—		2,773		893		466,316
Total	$	12,447,375	$	18,026	$	6,876	$	1,104	$	26,006	$	221,543	$	12,694,924



	March 31, 2017
	Acquired loans ^{(1) (2)}
	Accruing
(Dollars in thousands)	Current or Less Than 30 days past due		30-59 days		60-89 days		> 90 days		Total Past Due		Non-accrual Loans		Discount/Premium			Acquired Impaired Loans		Total Loans
Commercial real estate - Construction	$	25,425	$	—	$	—	$	—	$	—	$	1,946	$	(202	)	$	34,787	$	61,956
Commercial real estate - Other	811,160		—		314		3,684		3,998		957		(3,258		)	224,552		1,037,409
Commercial and industrial	280,869		287		111		1,196		1,594		1,101		(745		)	32,554		315,373
Energy-related	956		—		157		—		157		—		(5		)	—		1,108
Residential mortgage	278,684		919		543		—		1,462		789		(1,729		)	115,293		394,499
Consumer - Home equity	266,706		1,078		222		—		1,300		1,367		(4,826		)	85,126		349,673
Consumer - Indirect automobile	19		—		—		—		—		—		—			7		26
Consumer - Credit Card	—		—		—		—		—		—		—			501		501
Consumer - Other	44,026		218		37		—		255		344		(931		)	4,519		48,213
Total	$	1,707,845	$	2,502	$	1,384	$	4,880	$	8,766	$	6,504	$	(11,696	)	$	497,339	$	2,208,758



	December 31, 2016
	Acquired loans ^{(1) (2)}
	Accruing
(Dollars in thousands)	Current or Less Than 30 days past due		30-59 days		60-89 days		> 90 days		Total Past Due		Non-accrual Loans		Discount/Premium			Acquired Impaired Loans		Total Loans
Commercial real estate - Construction	$	26,714	$	—	$	—	$	—	$	—	$	1,946	$	(243	)	$	32,991	$	61,408
Commercial real estate - Other	871,492		716		55		32		803		1,221		(3,649		)	247,677		1,117,544
Commercial and industrial	314,990		73		51		—		124		1,317		(837		)	32,732		348,326
Energy-related	1,910		—		—		—		—		—		(6		)	—		1,904
Residential mortgage	290,031		328		989		—		1,317		719		(1,835		)	122,952		413,184
Consumer - Home equity	286,411		1,078		189		250		1,517		1,395		(5,237		)	88,419		372,505
Consumer - Indirect automobile	—		—		—		—		—		—		—			4		4
Consumer - Credit Card	468		—		—		—		—		—		—			—		468
Consumer - Other	49,449		391		97		—		488		360		(1,004		)	5,411		54,704
Total	$	1,841,465	$	2,586	$	1,381	$	282	$	4,249	$	6,958	$	(12,811	)	$	530,186	$	2,370,047


⁽¹⁾	Past due and non-accrual information presents acquired loans at the gross loan balance, prior to application of discounts.


⁽²⁾	Past due and non-accrual loan amounts exclude acquired impaired loans, even if contractually past due or if the Company does not expect to receive payment in full, as the Company is currently accreting interest income over the expected life of the loans.

Summary of Changes in Accretable Yields of Acquired Loans

The following is a summary of changes in the accretable difference for all loans accounted for under ASC 310-30 during the three months ended March 31:



(Dollars in thousands)	2017			2016
Balance at beginning of period	$	175,054		$	227,502
Transfers from non-accretable difference to accretable yield	2,071			2,106
Accretion	(14,596		)	(18,412		)
Changes in expected cash flows not affecting non-accretable differences⁽¹⁾	1,060			8,688
Balance at end of period	$	163,589		$	219,884


⁽¹⁾	Includes changes in cash flows expected to be collected due to the impact of changes in actual or expected timing of liquidation events, modifications, changes in interest rates and changes in prepayment assumptions.

Schedule of Modified TDRs

The following table provides information on how the TDRs were modified during the three months ended March 31, 2017 and 2016:



(Dollars in thousands)	2017		2016
Extended maturities	$	7,199	$	3,061
Maturity and interest rate adjustment	3,224		253
Movement to or extension of interest-rate only payments	1,290		—
Forbearance	1,220		5,296
Other concession(s) ⁽¹⁾	232		36,172
Total	$	13,165	$	44,782


⁽¹⁾	Other concessions may include covenant waivers, forgiveness of principal or interest associated with a customer bankruptcy, or a combination of any of the above concessions.

Schedule of Subsequently Defaulted TDRs

The following table presents the end of period balance for loans modified in a TDR during the three months ended March 31:



	2017					2016
(In thousands, except number of loans)	Number of Loans	Pre-modification Outstanding Recorded Investment		Post-modification Outstanding Recorded Investment		Number of Loans	Pre-modification Outstanding Recorded Investment		Post-modification Outstanding Recorded Investment
Commercial real estate	10	$	4,871	$	4,854	9	$	1,228	$	1,228
Commercial and industrial	15	435		427		14	4,927		4,737
Energy-related	—	—		—		9	33,925		33,925
Residential mortgage	4	259		241		15	3,295		3,219
Consumer - Home equity	37	6,622		6,607		22	1,372		1,316
Consumer - Indirect	13	184		174		—	—		—
Consumer - Other	22	867		862		25	442		357
Total	101	$	13,238	$	13,165	94	$	45,189	$	44,782

Information detailing TDRs that defaulted during the three months ended March 31, 2017 and 2016, and were modified in the previous twelve months (i.e., the twelve months prior to the default) is presented in the following table. The Company has defined a default as any loan with a loan payment that is currently past due greater than 30 days, or was past due greater than 30 days at any point during the previous twelve months, or since the date of modification, whichever is shorter.



	March 31, 2017			March 31, 2016
(In thousands, except number of loans)	Number of Loans	Recorded Investment		Number of Loans	Recorded Investment
Commercial real estate	16	$	13,583	9	$	1,228
Commercial and industrial	20	1,411		9	1,627
Energy-related	5	9,082		1	2,250
Residential mortgage	22	1,793		15	3,218
Consumer - Home Equity	31	1,337		10	595
Consumer - Indirect automobile	43	517		—	—
Consumer - Other	25	693		7	170
Total	162	$	28,416	51	$	9,088