Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI (Tables)

9 Months Ended

Sep. 30, 2016

Accounts Notes Loans And Financing Receivable Gross Allowance And Net [Abstract]

At September 30, 2016 and December 31, 2015, LHFI consisted of the following ($ in thousands):

	September 30, 2016		December 31, 2015
Loans secured by real estate:
Construction, land development and other land	$	766,685	$	824,723
Secured by 1-4 family residential properties		1,592,453		1,649,501
Secured by nonfarm, nonresidential properties		1,916,153		1,736,476
Other real estate secured		317,680		211,228
Commercial and industrial loans		1,421,382		1,343,211
Consumer loans		170,073		169,135
State and other political subdivision loans		875,973		734,615
Other loans		438,805		422,496
LHFI		7,499,204		7,091,385
Less allowance for loan losses, LHFI		70,871		67,619
Net LHFI	$	7,428,333	$	7,023,766

Summary of LHFI Evaluated for Impairment

The following tables detail LHFI individually and collectively evaluated for impairment at September 30, 2016 and December 31, 2015 ($ in thousands):

	September 30, 2016
	LHFI Evaluated for Impairment
	Individually		Collectively		Total
Loans secured by real estate:
Construction, land development and other land	$	4,724	$	761,961	$	766,685
Secured by 1-4 family residential properties		20,107		1,572,346		1,592,453
Secured by nonfarm, nonresidential properties		10,313		1,905,840		1,916,153
Other real estate secured		1,731		315,949		317,680
Commercial and industrial loans		16,525		1,404,857		1,421,382
Consumer loans		189		169,884		170,073
State and other political subdivision loans		—		875,973		875,973
Other loans		821		437,984		438,805
Total	$	54,410	$	7,444,794	$	7,499,204

	December 31, 2015
	LHFI Evaluated for Impairment
	Individually		Collectively		Total
Loans secured by real estate:
Construction, land development and other land	$	6,123	$	818,600	$	824,723
Secured by 1-4 family residential properties		23,079		1,626,422		1,649,501
Secured by nonfarm, nonresidential properties		17,800		1,718,676		1,736,476
Other real estate secured		145		211,083		211,228
Commercial and industrial loans		7,622		1,335,589		1,343,211
Consumer loans		31		169,104		169,135
State and other political subdivision loans		—		734,615		734,615
Other loans		512		421,984		422,496
Total	$	55,312	$	7,036,073	$	7,091,385

Impaired Financing Receivables

At September 30, 2016 and December 31, 2015, the carrying amount of LHFI individually evaluated for impairment consisted of the following ($ in thousands):

	September 30, 2016
	LHFI
	Unpaid Principal Balance		With No Related Allowance Recorded		With an Allowance Recorded		Total Carrying Amount		Related Allowance		Average Recorded Investment
Loans secured by real estate:
Construction, land development and other land	$	8,186	$	3,113	$	1,611	$	4,724	$	453	$	5,424
Secured by 1-4 family residential properties		25,160		495		19,612		20,107		1,514		21,593
Secured by nonfarm, nonresidential properties		11,633		1,312		9,001		10,313		2,316		14,058
Other real estate secured		1,782		1,000		731		1,731		90		938
Commercial and industrial loans		18,203		12,055		4,470		16,525		2,305		12,073
Consumer loans		193		—		189		189		2		111
State and other political subdivision loans		—		—		—		—		—		—
Other loans		966		—		821		821		154		667
Total	$	66,123	$	17,975	$	36,435	$	54,410	$	6,834	$	54,864

	December 31, 2015
	LHFI
	Unpaid Principal Balance		With No Related Allowance Recorded		With an Allowance Recorded		Total Carrying Amount		Related Allowance		Average Recorded Investment
Loans secured by real estate:
Construction, land development and other land	$	11,113	$	3,395	$	2,728	$	6,123	$	909	$	9,995
Secured by 1-4 family residential properties		27,678		283		22,796		23,079		1,230		24,350
Secured by nonfarm, nonresidential properties		20,387		8,037		9,763		17,800		3,402		21,758
Other real estate secured		160		—		145		145		15		732
Commercial and industrial loans		9,880		1,137		6,485		7,622		3,304		9,863
Consumer loans		34		—		31		31		—		59
State and other political subdivision loans		—		—		—		—		—		—
Other loans		642		—		512		512		128		570
Total	$	69,894	$	12,852	$	42,460	$	55,312	$	8,988	$	67,327

Impact of Modifications Classified as Troubled Debt Restructurings

The following tables illustrate the impact of modifications classified as TDRs as well as those TDRs modified within the last 12 months for which there was a payment default during the period for the periods presented ($ in thousands):

	Three Months Ended September 30,
	2016						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
Loans secured by 1-4 family residential properties		—	$	—	$	—		2	$	35	$	35

	Nine Months Ended September 30,
	2016						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
Construction, land development and other land loans		1	$	14	$	14		—	$	—	$	—
Loans secured by 1-4 family residential properties		8		740		740		10		495		495
Loans secured by nonfarm, nonresidential properties		—		—		—		4		3,512		3,512
Consumer loans		1		2		2		—		—		—
Total		10	$	756	$	756		14	$	4,007	$	4,007

Troubled Debt Restructuring Subsequently Defaulted

	Nine Months Ended September 30,
	2016				2015
TDRs that Subsequently Defaulted	Number of Contracts		Recorded Investment		Number of Contracts		Recorded Investment
Loans secured by 1-4 family residential properties		1	$	101		4	$	243

Troubled Debt Restructuring Related to Loans Held for Investment, Excluding Covered Loans, by Loan Type

The following tables detail LHFI classified as TDRs by loan type at September 30, 2016 and 2015 ($ in thousands):

	September 30, 2016
	Accruing		Nonaccrual		Total
Loans secured by real estate:
Construction, land development and other land	$	—	$	556	$	556
Secured by 1-4 family residential properties		—		2,545		2,545
Secured by nonfarm, nonresidential properties		—		179		179
Commercial and industrial loans		—		387		387
Consumer loans		—		2		2
Total TDRs	$	—	$	3,669	$	3,669

	September 30, 2015
	Accruing		Nonaccrual		Total
Loans secured by real estate:
Construction, land development and other land	$	—	$	1,006	$	1,006
Secured by 1-4 family residential properties		1,385		2,921		4,306
Secured by nonfarm, nonresidential properties		819		4,503		5,322
Other real estate secured		—		62		62
Commercial and industrial loans		—		477		477
Total TDRs	$	2,204	$	8,969	$	11,173

Carrying Amount of Loans by Credit Quality Indicator

The tables below illustrate the carrying amount of LHFI by credit quality indicator at September 30, 2016 and December 31, 2015 ($ in thousands):

	September 30, 2016
		Commercial LHFI
		Pass - Categories 1-6		Special Mention - Category 7		Substandard - Category 8		Doubtful - Category 9		Subtotal
Loans secured by real estate:
Construction, land development and other land		$	687,123	$	8,494	$	9,410	$	469	$	705,496
Secured by 1-4 family residential properties			124,472		467		6,262		361		131,562
Secured by nonfarm, nonresidential properties			1,870,036		3,196		41,668		494		1,915,394
Other real estate secured			314,858		—		1,957		—		316,815
Commercial and industrial loans			1,304,137		9,094		107,405		746		1,421,382
Consumer loans			—		—		—		—		—
State and other political subdivision loans			858,168		6,450		11,355		—		875,973
Other loans			429,403		340		2,232		642		432,617
Total		$	5,588,197	$	28,041	$	180,289	$	2,712	$	5,799,239

	Consumer LHFI
	Current		Past Due 30-89 Days		Past Due 90 Days or More		Nonaccrual		Subtotal		Total LHFI
Loans secured by real estate:
Construction, land development and other land	$	60,546	$	176	$	—	$	467	$	61,189	$	766,685
Secured by 1-4 family residential properties		1,435,347		8,173		717		16,654		1,460,891		1,592,453
Secured by nonfarm, nonresidential properties		759		—		—		—		759		1,916,153
Other real estate secured		865		—		—		—		865		317,680
Commercial and industrial loans		—		—		—		—		—		1,421,382
Consumer loans		167,817		1,845		218		193		170,073		170,073
State and other political subdivision loans		—		—		—		—		—		875,973
Other loans		6,188		—		—		—		6,188		438,805
Total	$	1,671,522	$	10,194	$	935	$	17,314	$	1,699,965	$	7,499,204

	December 31, 2015
		Commercial LHFI
		Pass - Categories 1-6		Special Mention - Category 7		Substandard - Category 8		Doubtful - Category 9		Subtotal
Loans secured by real estate:
Construction, land development and other land		$	746,227	$	—	$	15,637	$	529	$	762,393
Secured by 1-4 family residential properties			125,268		345		7,525		190		133,328
Secured by nonfarm, nonresidential properties			1,680,846		2,031		52,485		361		1,735,723
Other real estate secured			205,097		—		4,768		—		209,865
Commercial and industrial loans			1,295,760		9,473		37,284		694		1,343,211
Consumer loans			—		—		—		—		—
State and other political subdivision loans			713,616		12,478		8,521		—		734,615
Other loans			414,089		183		2,663		375		417,310
Total		$	5,180,903	$	24,510	$	128,883	$	2,149	$	5,336,445

	Consumer LHFI
	Current		Past Due 30-89 Days		Past Due 90 Days or More		Nonaccrual		Subtotal		Total LHFI
Loans secured by real estate:
Construction, land development and other land	$	62,158	$	146	$	—	$	26	$	62,330	$	824,723
Secured by 1-4 family residential properties		1,485,914		7,565		2,058		20,636		1,516,173		1,649,501
Secured by nonfarm, nonresidential properties		753		—		—		—		753		1,736,476
Other real estate secured		1,363		—		—		—		1,363		211,228
Commercial and industrial loans		—		—		—		—		—		1,343,211
Consumer loans		166,681		2,182		242		30		169,135		169,135
State and other political subdivision loans		—		—		—		—		—		734,615
Other loans		5,186		—		—		—		5,186		422,496
Total	$	1,722,055	$	9,893	$	2,300	$	20,692	$	1,754,940	$	7,091,385

Aging Analysis of Past Due Loans and Nonaccrual Loans, Excluding Covered Loans by Loan Type

The following tables provide an aging analysis of past due and nonaccrual LHFI by loan type at September 30, 2016 and December 31, 2015 ($ in thousands):

	September 30, 2016
	Past Due
	30-59 Days		60-89 Days		90 Days or More (1)		Total		Nonaccrual		Current Loans		Total LHFI
Loans secured by real estate:
Construction, land development and other land	$	1,136	$	78	$	—	$	1,214	$	4,724	$	760,747	$	766,685
Secured by 1-4 family residential properties		6,801		1,803		717		9,321		20,107		1,563,025		1,592,453
Secured by nonfarm, nonresidential properties		576		—		18		594		10,313		1,905,246		1,916,153
Other real estate secured		144		—		—		144		1,731		315,805		317,680
Commercial and industrial loans		868		180		—		1,048		16,525		1,403,809		1,421,382
Consumer loans		1,465		380		218		2,063		189		167,821		170,073
State and other political subdivision loans		—		—		—		—		—		875,973		875,973
Other loans		147		2		—		149		821		437,835		438,805
Total	$	11,137	$	2,443	$	953	$	14,533	$	54,410	$	7,430,261	$	7,499,204

(1)	Past due 90 days or more but still accruing interest.

	December 31, 2015
	Past Due
	30-59 Days		60-89 Days		90 Days or More (1)		Total		Nonaccrual		Current Loans		Total LHFI
Loans secured by real estate:
Construction, land development and other land	$	214	$	—	$	—	$	214	$	6,123	$	818,386	$	824,723
Secured by 1-4 family residential properties		6,203		1,800		2,058		10,061		23,079		1,616,361		1,649,501
Secured by nonfarm, nonresidential properties		437		88		—		525		17,800		1,718,151		1,736,476
Other real estate secured		—		—		—		—		145		211,083		211,228
Commercial and industrial loans		921		45		—		966		7,622		1,334,623		1,343,211
Consumer loans		1,835		347		242		2,424		31		166,680		169,135
State and other political subdivision loans		65		—		—		65		—		734,550		734,615
Other loans		68		—		—		68		512		421,916		422,496
Total	$	9,743	$	2,280	$	2,300	$	14,323	$	55,312	$	7,021,750	$	7,091,385

(1)	Past due 90 days or more but still accruing interest.

Change in Allowance for Loan Losses

Changes in the allowance for loan losses, LHFI were as follows for the periods presented ($ in thousands):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2016			2015			2016			2015
Balance at beginning of period	$	71,796		$	71,166		$	67,619		$	69,616
Loans charged-off		(8,279	)		(11,406	)		(14,893	)		(18,688	)
Recoveries		3,070			3,333			9,022			9,347
Net charge-offs		(5,209	)		(8,073	)		(5,871	)		(9,341	)
Provision for loan losses, LHFI		4,284			2,514			9,123			5,332
Balance at end of period	$	70,871		$	65,607		$	70,871		$	65,607

The following tables detail the balance in the allowance for loan losses, LHFI by loan type at September 30, 2016 and 2015 ($ in thousands):

	2016
	Balance January 1,		Charge-offs			Recoveries		Provision for Loan Losses			Balance September 30,
Loans secured by real estate:
Construction, land development and other land	$	11,587	$	(212	)	$	1,006	$	(3,183	)	$	9,198
Secured by 1-4 family residential properties		10,678		(1,129	)		680		172			10,401
Secured by nonfarm, nonresidential properties		21,563		(1,662	)		823		1,479			22,203
Other real estate secured		2,467		—			5		(213	)		2,259
Commercial and industrial loans		15,815		(6,408	)		519		10,982			20,908
Consumer loans		2,879		(1,398	)		3,397		(1,851	)		3,027
State and other political subdivision loans		809		—			—		68			877
Other loans		1,821		(4,084	)		2,592		1,669			1,998
Total allowance for loan losses, LHFI	$	67,619	$	(14,893	)	$	9,022	$	9,123		$	70,871

	Disaggregated by Impairment Method
	Individually		Collectively		Total
Loans secured by real estate:
Construction, land development and other land	$	453	$	8,745	$	9,198
Secured by 1-4 family residential properties		1,514		8,887		10,401
Secured by nonfarm, nonresidential properties		2,316		19,887		22,203
Other real estate secured		90		2,169		2,259
Commercial and industrial loans		2,305		18,603		20,908
Consumer loans		2		3,025		3,027
State and other political subdivision loans		—		877		877
Other loans		154		1,844		1,998
Total allowance for loan losses, LHFI	$	6,834	$	64,037	$	70,871

	2015
	Balance January 1,		Charge-offs			Recoveries		Provision for Loan Losses			Balance September 30,
Loans secured by real estate:
Construction, land development and other land loans	$	13,073	$	(2,236	)	$	1,274	$	395		$	12,506
Secured by 1-4 family residential properties		9,677		(2,013	)		781		1,529			9,974
Secured by nonfarm, nonresidential properties		18,523		(1,282	)		397		(1,517	)		16,121
Other real estate secured		2,141		(24	)		6		(382	)		1,741
Commercial and industrial loans		19,917		(7,243	)		1,553		5,109			19,336
Consumer loans		2,149		(1,543	)		2,639		(1,166	)		2,079
State and other political subdivision loans		1,314		—			—		(624	)		690
Other loans		2,822		(4,347	)		2,697		1,988			3,160
Total allowance for loan losses, LHFI	$	69,616	$	(18,688	)	$	9,347	$	5,332		$	65,607

	Disaggregated by Impairment Method
	Individually		Collectively		Total
Loans secured by real estate:
Construction, land development and other land loans	$	2,054	$	10,452	$	12,506
Secured by 1-4 family residential properties		267		9,707		9,974
Secured by nonfarm, nonresidential properties		2,602		13,519		16,121
Other real estate secured		28		1,713		1,741
Commercial and industrial loans		2,956		16,380		19,336
Consumer loans		—		2,079		2,079
State and other political subdivision loans		—		690		690
Other loans		200		2,960		3,160
Total allowance for loan losses, LHFI	$	8,107	$	57,500	$	65,607