Loans and Leases (Tables)

12 Months Ended

Dec. 31, 2015

Loans and Leases Receivable Disclosure [Abstract]

Loans And Leases Outstanding

Loans and leases outstanding include the following as of the dates indicated:

(Dollars in thousands)	December 31, 2015		December 31, 2014
Non-PCI loans and leases:
Commercial:
Construction and land development	$	620,352	$	493,133
Commercial mortgage	8,274,548		7,552,948
Other commercial real estate	321,021		244,875
Commercial and industrial	2,368,958		1,988,934
Lease financing	730,778		571,916
Other	314,832		353,833
Total commercial loans	12,630,489		11,205,639
Noncommercial:
Residential mortgage	2,695,985		2,493,058
Revolving mortgage	2,523,106		2,561,800
Construction and land development	220,073		205,016
Consumer	1,219,821		1,117,454
Total noncommercial loans	6,658,985		6,377,328
Total non-PCI loans and leases	19,289,474		17,582,967
PCI loans:
Commercial:
Construction and land development	$	33,880	$	78,079
Commercial mortgage	525,468		577,518
Other commercial real estate	17,076		40,193
Commercial and industrial	15,182		27,254
Other	2,008		3,079
Total commercial loans	593,614		726,123
Noncommercial:
Residential mortgage	302,158		382,340
Revolving mortgage	52,471		74,109
Construction and land development	—		912
Consumer	2,273		3,014
Total noncommercial loans	356,902		460,375
Total PCI loans	950,516		1,186,498
Total loans and leases	$	20,239,990	$	18,769,465

Composition Of The Loans And Leases Outstanding By Credit Quality Indicator

The composition of the loans and leases outstanding at December 31, 2015, and December 31, 2014, by credit quality indicator is provided below:

	Non-PCI commercial loans and leases
(Dollars in thousands)	Construction and land development		Commercial mortgage		Other commercial real estate		Commercial and industrial		Lease financing		Other		Total non-PCI commercial loans and leases
Grade:
December 31, 2015
Pass	$	611,314	$	8,024,831	$	318,187	$	2,219,606	$	719,338	$	311,401	$	12,204,677
Special mention	5,191		100,220		475		19,361		4,869		1,905		132,021
Substandard	3,847		146,071		959		21,322		6,375		1,526		180,100
Doubtful	—		599		—		408		169		—		1,176
Ungraded	—		2,827		1,400		108,261		27		—		112,515
Total	$	620,352	$	8,274,548	$	321,021	$	2,368,958	$	730,778	$	314,832	$	12,630,489
December 31, 2014
Pass	$	474,374	$	7,284,714	$	242,053	$	1,859,415	$	564,319	$	349,111	$	10,773,986
Special mention	13,927		129,247		909		27,683		3,205		1,384		176,355
Substandard	4,720		134,677		1,765		8,878		3,955		3,338		157,333
Doubtful	—		2,366		—		164		365		—		2,895
Ungraded	112		1,944		148		92,794		72		—		95,070
Total	$	493,133	$	7,552,948	$	244,875	$	1,988,934	$	571,916	$	353,833	$	11,205,639

	Non-PCI noncommercial loans and leases
(Dollars in thousands)	Residential mortgage		Revolving mortgage		Construction and land development		Consumer		Total non-PCI noncommercial loans and leases
December 31, 2015
Current	$	2,651,209	$	2,502,065	$	214,555	$	1,210,832	$	6,578,661
30-59 days past due	23,960		11,706		3,211		5,545		44,422
60-89 days past due	7,536		3,704		669		1,822		13,731
90 days or greater past due	13,280		5,631		1,638		1,622		22,171
Total	$	2,695,985	$	2,523,106	$	220,073	$	1,219,821	$	6,658,985
December 31, 2014
Current	$	2,454,797	$	2,542,807	$	202,344	$	1,110,153	$	6,310,101
30-59 days past due	23,288		11,097		1,646		4,577		40,608
60-89 days past due	6,018		2,433		824		1,619		10,894
90 days or greater past due	8,955		5,463		202		1,105		15,725
Total	$	2,493,058	$	2,561,800	$	205,016	$	1,117,454	$	6,377,328

	PCI commercial loans
(Dollars in thousands)	Construction and land development		Commercial mortgage		Other commercial real estate		Commercial and industrial		Other		Total PCI commercial loans
Grade:
December 31, 2015
Pass	$	14,710	$	262,579	$	7,366	$	9,302	$	706	$	294,663
Special mention	758		87,870		60		937		—		89,625
Substandard	14,131		163,801		9,229		4,588		1,302		193,051
Doubtful	4,281		10,875		—		282		—		15,438
Ungraded	—		343		421		73		—		837
Total	$	33,880	$	525,468	$	17,076	$	15,182	$	2,008	$	593,614
December 31, 2014
Pass	$	13,514	$	300,187	$	11,033	$	16,637	$	801	$	342,172
Special mention	6,063		98,724		16,271		4,137		—		125,195
Substandard	53,739		171,920		12,889		6,312		2,278		247,138
Doubtful	2,809		6,302		—		130		—		9,241
Ungraded	1,954		385		—		38		—		2,377
Total	$	78,079	$	577,518	$	40,193	$	27,254	$	3,079	$	726,123

	PCI noncommercial loans
(Dollars in thousands)	Residential mortgage		Revolving mortgage		Construction and land development		Consumer		Total PCI noncommercial loans
December 31, 2015
Current	$	257,207	$	47,901	$	—	$	1,981	$	307,089
30-59 days past due	12,318		1,127		—		86		13,531
60-89 days past due	4,441		501		—		132		5,074
90 days or greater past due	28,192		2,942		—		74		31,208
Total	$	302,158	$	52,471	$	—	$	2,273	$	356,902
December 31, 2014
Current	$	326,589	$	68,548	$	506	2,582		$	398,225
30-59 days past due	11,432		1,405		—		147		12,984
60-89 days past due	10,073		345		—		25		10,443
90 days or greater past due	34,246		3,811		406		260		38,723
Total	$	382,340	$	74,109	$	912	$	3,014	$	460,375

Aging Of The Outstanding Loans And Leases By Class Excluding Loans Impaired At Acquisition Date

The aging of the outstanding non-PCI loans and leases, by class, at December 31, 2015, and December 31, 2014 is provided in the table below.

The calculation of days past due begins on the day after payment is due and includes all days through which all required interest or principal has not been paid. Loans and leases 30 days or less past due are considered current as various grace periods that allow borrowers to make payments within a stated period after the due date and still remain in compliance with the loan agreement.

	December 31, 2015
(Dollars in thousands)	30-59 days past due		60-89 days past due		90 days or greater		Total past due		Current		Total loans and leases
Non-PCI loans and leases:
Construction and land development - commercial	$	987	$	283	$	463	$	1,733	$	618,619	$	620,352
Commercial mortgage	13,023		3,446		14,495		30,964		8,243,584		8,274,548
Other commercial real estate	884		—		142		1,026		319,995		321,021
Commercial and industrial	2,133		1,079		1,780		4,992		2,363,966		2,368,958
Lease financing	2,070		2		164		2,236		728,542		730,778
Residential mortgage	23,960		7,536		13,280		44,776		2,651,209		2,695,985
Revolving mortgage	11,706		3,704		5,631		21,041		2,502,065		2,523,106
Construction and land development - noncommercial	3,211		669		1,638		5,518		214,555		220,073
Consumer	5,545		1,822		1,622		8,989		1,210,832		1,219,821
Other	3		164		134		301		314,531		314,832
Total non-PCI loans and leases	$	63,522	$	18,705	$	39,349	$	121,576	$	19,167,898	$	19,289,474
	December 31, 2014
	30-59 days past due		60-89 days past due		90 days or greater		Total past due		Current		Total loans and leases
Non-PCI loans and leases:
Construction and land development - commercial	$	520	$	283	$	330	$	1,133	$	492,000	$	493,133
Commercial mortgage	11,367		4,782		8,061		24,210		7,528,738		7,552,948
Other commercial real estate	206		70		102		378		244,497		244,875
Commercial and industrial	2,843		1,545		378		4,766		1,984,168		1,988,934
Lease financing	1,631		8		2		1,641		570,275		571,916
Residential mortgage	23,288		6,018		8,955		38,261		2,454,797		2,493,058
Revolving mortgage	11,097		2,433		5,463		18,993		2,542,807		2,561,800
Construction and land development - noncommercial	1,646		824		202		2,672		202,344		205,016
Consumer	4,577		1,619		1,105		7,301		1,110,153		1,117,454
Other	146		1,966		—		2,112		351,721		353,833
Total non-PCI loans and leases	$	57,321	$	19,548	$	24,598	$	101,467	$	17,481,500	$	17,582,967

Recorded Investment, By Class, In Loans And Leases On Nonaccrual Status And Loans And Leases Greater Than 90 Days Past Due And Still Accruing

The recorded investment, by class, in loans and leases on nonaccrual status, and loans and leases greater than 90 days past due and still accruing at December 31, 2015 and December 31, 2014 for non-PCI loans, were as follows:

	December 31, 2015				December 31, 2014
(Dollars in thousands)	Nonaccrual loans and leases		Loans and leases > 90 days and accruing		Nonaccrual loans and leases		Loans and leases > 90 days and accruing
Non-PCI loans and leases:
Construction and land development - commercial	$	425	$	273	$	343	$	56
Commercial mortgage	42,116		242		24,720		1,003
Commercial and industrial	6,235		953		1,741		239
Lease financing	389		—		374		2
Other commercial real estate	239		—		619		35
Construction and land development - noncommercial	2,164		—		—		202
Residential mortgage	29,977		838		14,242		3,191
Revolving mortgage	12,704		—		—		5,463
Consumer	1,472		1,007		—		1,059
Other	133		2		1,966		—
Total non-PCI loans and leases	$	95,854	$	3,315	$	44,005	$	11,250

Changes In Carrying Value Of Acquired Impaired Loans

The following table provides changes in the carrying value of purchased credit-impaired loans during the years ended December 31, 2015 and 2014:

(Dollars in thousands)	2015			2014
Balance at January 1	$	1,186,498		$	1,029,426
Fair value of PCI loans acquired during the year	154,496			623,408
Accretion	114,580			112,368
Payments received and other changes, net	(505,058		)	(578,704		)
Balance at December 31	$	950,516		$	1,186,498
Unpaid principal balance at December 31	$	1,693,372		$	2,057,691

Changes In The Amount Of Accretable Yield

Purchased non-impaired loans and leases

The following table relates to purchased non-impaired loans and leases acquired in the Bancorporation merger for 2014 and provides the contractually required payments, estimate of contractual cash flows not expected to be collected and fair value of the acquired loans at the merger date.

(Dollars in thousands)	2014
Contractually required payments	$	4,708,681
Contractual cash flows not expected to be collected	$	59,187
Fair value at acquisition date	$	4,175,586

The recorded fair values of purchased non-impaired loans and leases acquired in the Bancorporation transaction as of the merger date were as follows:

(Dollars in thousands)	2014
Commercial:
Construction and land development	$	134,941
Commercial mortgage	951,794
Other commercial real estate	61,856
Commercial and industrial	431,367
Lease financing	72,563
Other	95,379
Total commercial loans and leases	1,747,900
Noncommercial:
Residential mortgage	1,305,140
Revolving mortgage	419,106
Construction and land development	7,165
Consumer	696,275
Total noncommercial loans and leases	2,427,686
Total non-PCI loans	$	4,175,586