Loans (Tables)

9 Months Ended

Sep. 30, 2016

Receivables [Abstract]

Schedule of Loan Portfolio Non-Covered and Covered PCI Loans and Non-PCI Loans

The detail of the loan portfolio as of September 30, 2016 and December 31, 2015 was as follows:

	September 30, 2016						December 31, 2015
	Non-PCI Loans		PCI Loans*		Total		Non-PCI Loans		PCI Loans*		Total
	(in thousands)
Loans:
Commercial and industrial	$	2,266,420	$	292,548	$	2,558,968	$	2,156,549	$	383,942	$	2,540,491
Commercial real estate:
Commercial real estate	7,178,836		1,135,019		8,313,855		6,069,532		1,355,104		7,424,636
Construction	670,801		131,767		802,568		607,694		147,253		754,947
Total commercial real estate loans	7,849,637		1,266,786		9,116,423		6,677,226		1,502,357		8,179,583
Residential mortgage	2,637,311		188,819		2,826,130		2,912,079		218,462		3,130,541
Consumer:
Home equity	377,682		99,138		476,820		391,809		119,394		511,203
Automobile	1,121,430		176		1,121,606		1,238,826		487		1,239,313
Other consumer	524,540		9,648		534,188		426,147		15,829		441,976
Total consumer loans	2,023,652		108,962		2,132,614		2,056,782		135,710		2,192,492
Total loans	$	14,777,020	$	1,857,115	$	16,634,135	$	13,802,636	$	2,240,471	$	16,043,107

* PCI loans include covered loans (mostly consisting of residential mortgage and commercial real estate loans) totaling $76.0 million and $122.3 million at September 30, 2016 and December 31, 2015, respectively.

Changes in Accretable Yield for Covered Loans

The following table presents changes in the accretable yield for PCI loans during the three and nine months ended September 30, 2016 and 2015:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2016			2015			2016			2015
	(in thousands)
Balance, beginning of period	$	355,601		$	282,101		$	415,179		$	336,208
Accretion	(26,730		)	(24,814		)	(86,308		)	(78,921		)
Balance, end of period	$	328,871		$	257,287		$	328,871		$	257,287

Past Due, Non-Accrual and Current Non-Covered Loans by Loan Portfolio Class

The following table presents past due, non-accrual and current loans (excluding PCI loans, which are accounted for on a pool basis, and non-performing loans held for sale) by loan portfolio class at September 30, 2016 and December 31, 2015:

	Past Due and Non-Accrual Loans
	30-59 Days Past Due Loans		60-89 Days Past Due Loans		Accruing Loans 90 Days or More Past Due		Non-Accrual Loans		Total Past Due Loans		Current Non-PCI Loans		Total Non-PCI Loans
	(in thousands)
September 30, 2016
Commercial and industrial	$	4,306	$	788	$	145	$	7,875	$	13,114	$	2,253,306	$	2,266,420
Commercial real estate:
Commercial real estate	9,385		4,291		478		14,452		28,606		7,150,230		7,178,836
Construction	—		—		1,881		1,136		3,017		667,784		670,801
Total commercial real estate loans	9,385		4,291		2,359		15,588		31,623		7,818,014		7,849,637
Residential mortgage	9,982		2,733		590		14,013		27,318		2,609,993		2,637,311
Consumer loans:
Home equity	693		527		—		820		2,040		375,642		377,682
Automobile	2,110		619		226		145		3,100		1,118,330		1,121,430
Other consumer	343		88		—		—		431		524,109		524,540
Total consumer loans	3,146		1,234		226		965		5,571		2,018,081		2,023,652
Total	$	26,819	$	9,046	$	3,320	$	38,441	$	77,626	$	14,699,394	$	14,777,020
December 31, 2015
Commercial and industrial	$	3,920	$	524	$	213	$	10,913	$	15,570	$	2,140,979	$	2,156,549
Commercial real estate:
Commercial real estate	2,684		—		131		24,888		27,703		6,041,829		6,069,532
Construction	1,876		2,799		—		6,163		10,838		596,856		607,694
Total commercial real estate loans	4,560		2,799		131		31,051		38,541		6,638,685		6,677,226
Residential mortgage	6,681		1,626		1,504		17,930		27,741		2,884,338		2,912,079
Consumer loans:
Home equity	1,308		111		—		2,088		3,507		388,302		391,809
Automobile	1,969		491		164		118		2,742		1,236,084		1,238,826
Other consumer	71		24		44		—		139		426,008		426,147
Total consumer loans	3,348		626		208		2,206		6,388		2,050,394		2,056,782
Total	$	18,509	$	5,575	$	2,056	$	62,100	$	88,240	$	13,714,396	$	13,802,636

Impaired Loans

The following table presents the information about impaired loans by loan portfolio class at September 30, 2016 and December 31, 2015:

	Recorded Investment With No Related Allowance		Recorded Investment With Related Allowance		Total Recorded Investment		Unpaid Contractual Principal Balance		Related Allowance
	(in thousands)
September 30, 2016
Commercial and industrial	$	4,312	$	22,816	$	27,128	$	34,156	$	3,506
Commercial real estate:
Commercial real estate	20,428		42,363		62,791		65,076		4,152
Construction	1,972		4,326		6,298		6,298		423
Total commercial real estate loans	22,400		46,689		69,089		71,374		4,575
Residential mortgage	8,706		9,802		18,508		19,983		708
Consumer loans:
Home equity	214		1,509		1,723		1,820		210
Total consumer loans	214		1,509		1,723		1,820		210
Total	$	35,632	$	80,816	$	116,448	$	127,333	$	8,999
December 31, 2015
Commercial and industrial	$	7,863	$	17,851	$	25,714	$	33,071	$	3,439
Commercial real estate:
Commercial real estate	30,113		37,440		67,553		71,263		3,354
Construction	8,847		5,530		14,377		14,387		317
Total commercial real estate loans	38,960		42,970		81,930		85,650		3,671
Residential mortgage	7,842		14,770		22,612		24,528		1,377
Consumer loans:
Home equity	263		1,869		2,132		2,224		295
Total consumer loans	263		1,869		2,132		2,224		295
Total	$	54,928	$	77,460	$	132,388	$	145,473	$	8,782

Average Recorded Investment and Interest Income Recognized on Impaired Loans

The following tables present by loan portfolio class, the average recorded investment and interest income recognized on impaired loans for the three and nine months ended September 30, 2016 and 2015: 

	Three Months Ended September 30,
	2016				2015
	Average Recorded Investment		Interest Income Recognized		Average Recorded Investment		Interest Income Recognized
	(in thousands)
Commercial and industrial	$	31,499	$	293	$	28,892	$	232
Commercial real estate:
Commercial real estate	58,117		513		76,509		538
Construction	6,635		37		20,007		139
Total commercial real estate loans	64,752		550		96,516		677
Residential mortgage	20,193		225		25,336		208
Consumer loans:
Home equity	2,253		25		4,275		43
Total consumer loans	2,253		25		4,275		43
Total	$	118,697	$	1,093	$	155,019	$	1,160

	Nine Months Ended September 30,
	2016				2015
	Average Recorded Investment		Interest Income Recognized		Average Recorded Investment		Interest Income Recognized
	(in thousands)
Commercial and industrial	$	28,008	$	727	$	27,570	$	689
Commercial real estate:
Commercial real estate	66,871		1,627		76,900		1,918
Construction	8,814		138		16,066		415
Total commercial real estate loans	75,685		1,765		92,966		2,333
Residential mortgage	22,232		660		23,261		707
Consumer loans:
Home equity	2,560		68		4,125		111
Total consumer loans	2,560		68		4,125		111
Total	$	128,485	$	3,220	$	147,922	$	3,840

Pre-Modification and Post-Modification Outstanding Recorded Investments and Non-PCI Loans That Subsequently Defaulted

The following tables present loans by loan portfolio class modified as TDRs during the three and nine months ended September 30, 2016 and 2015. The pre-modification and post-modification outstanding recorded investments disclosed in the table below represent the loan carrying amounts immediately prior to the modification and the carrying amounts at September 30, 2016 and 2015, respectively.

	Three Months Ended September 30, 2016					Three Months Ended September 30, 2015
Troubled Debt Restructurings	Number of Contracts	Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment		Number of Contracts	Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment
	($ in thousands)
Commercial and industrial	7	$	6,389	$	6,248	2	$	1,530	$	1,530
Commercial real estate:
Commercial real estate	1	1,667		1,870		—	—		—
Construction	2	2,078		2,078		2	4,974		3,451
Total commercial real estate	3	3,745		3,948		2	4,974		3,451
Residential mortgage	1	78		77		3	1,080		1,050
Consumer	1	23		18		—	—		—
Total	12	$	10,235	$	10,291	7	$	7,584	$	6,031

	Nine Months Ended September 30, 2016					Nine Months Ended September 30, 2015
Troubled Debt Restructurings	Number of Contracts	Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment		Number of Contracts	Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment
	($ in thousands)
Commercial and industrial	12	$	11,700	$	11,088	12	$	4,621	$	4,081
Commercial real estate:
Commercial real estate	4	8,325		8,174		4	6,562		6,444
Construction	2	2,079		2,078		3	5,474		4,635
Total commercial real estate	6	10,404		10,252		7	12,036		11,079
Residential mortgage	8	2,300		2,271		6	2,458		2,420
Consumer	2	77		69		1	1,081		1,072
Total	28	$	24,481	$	23,680	26	$	20,196	$	18,652

Risk Category of Loans

The following table presents the risk category of loans (excluding PCI loans) by class of loans at September 30, 2016 and December 31, 2015. 

Credit exposure - by internally assigned risk rating	Pass		Special Mention		Substandard		Doubtful		Total Non-PCI Loans
	(in thousands)
September 30, 2016
Commercial and industrial	$	2,158,585	$	46,209	$	59,972	$	1,654	$	2,266,420
Commercial real estate	7,015,861		79,331		83,644		—		7,178,836
Construction	667,008		100		3,693		—		670,801
Total	$	9,841,454	$	125,640	$	147,309	$	1,654	$	10,116,057
December 31, 2015
Commercial and industrial	$	2,049,752	$	68,243	$	36,254	$	2,300	$	2,156,549
Commercial real estate	5,893,354		79,279		96,899		—		6,069,532
Construction	596,530		1,102		10,062		—		607,694
Total	$	8,539,636	$	148,624	$	143,215	$	2,300	$	8,833,775

Recorded Investment in Loan Classes Based on Payment Activity

The following table presents the recorded investment in those loan classes based on payment activity as of September 30, 2016 and December 31, 2015:

Credit exposure - by payment activity	Performing Loans		Non-Performing Loans		Total Non-PCI Loans
	(in thousands)
September 30, 2016
Residential mortgage	$	2,623,298	$	14,013	$	2,637,311
Home equity	376,862		820		377,682
Automobile	1,121,285		145		1,121,430
Other consumer	524,540		—		524,540
Total	$	4,645,985	$	14,978	$	4,660,963
December 31, 2015
Residential mortgage	$	2,894,149	$	17,930	$	2,912,079
Home equity	389,721		2,088		391,809
Automobile	1,238,708		118		1,238,826
Other consumer	426,147		—		426,147
Total	$	4,948,725	$	20,136	$	4,968,861

The following table presents the recorded investment in PCI loans by class based on individual loan payment activity as of September 30, 2016 and December 31, 2015.

Credit exposure - by payment activity	Performing Loans		Non-Performing Loans		Total PCI Loans
	(in thousands)
September 30, 2016
Commercial and industrial	$	283,759	$	8,789	$	292,548
Commercial real estate	1,123,123		11,896		1,135,019
Construction	130,442		1,325		131,767
Residential mortgage	185,790		3,029		188,819
Consumer	103,946		5,016		108,962
Total	$	1,827,060	$	30,055	$	1,857,115
December 31, 2015
Commercial and industrial	$	373,665	$	10,277	$	383,942
Commercial real estate	1,342,030		13,074		1,355,104
Construction	141,547		5,706		147,253
Residential mortgage	214,713		3,749		218,462
Consumer	129,891		5,819		135,710
Total	$	2,201,846	$	38,625	$	2,240,471