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Allowance for Probable Loan Losses (Tables)

6 Months Ended

Jun. 30, 2016

Allowance for Probable Loan Losses

Summary of the transactions in the allowance for probable loan losses by loan class

		Three Months Ended June 30, 2016
		Domestic																					Foreign
					Commercial
					Real Estate:
					Other			Commercial
					Construction &			Real Estate:			Commercial
					Land			Farmland &			Real Estate:			Residential:			Residential:
		Commercial			Development			Commercial			Multifamily			First Lien			Junior Lien			Consumer			Foreign			Total
		(Dollars in Thousands)
Balance at March 31,		$	25,783		$	10,870		$	16,974		$	910		$	2,369		$	3,420		$	530		$	928		$	61,784
Losses charged to allowance			(5,396)			(2)			(1,843)			—			(23)			(155)			(116)			—			(7,535)
Recoveries credited to allowance			513			3			75			—			4			76			5			11			687
Net (losses) recoveries  charged to allowance			(4,883)			1			(1,768)			—			(19)			(79)			(111)			11			(6,848)
Provision charged to operations			5,082			238			1,736			(55)			(73)			59			113			(3)			7,097
Balance at June 30,		$	25,982		$	11,109		$	16,942		$	855		$	2,277		$	3,400		$	532		$	936		$	62,033

		Three Months Ended June 30, 2015
		Domestic																					Foreign
					Commercial
					Real Estate:
					Other			Commercial
					Construction &			Real Estate:			Commercial
					Land			Farmland &			Real Estate:			Residential:			Residential:
		Commercial			Development			Commercial			Multifamily			First Lien			Junior Lien			Consumer			Foreign			Total
		(Dollars in Thousands)
Balance at March 31,		$	23,519		$	14,369		$	17,976		$	840		$	3,573		$	4,261		$	644		$	1,069		$	66,251
Losses charged to allowance			(13,073)			(685)			(339)			—			(1)			(5)			(239)			—			(14,342)
Recoveries credited to allowance			534			38			7			—			10			145			124			4			862
Net losses charged to allowance			(12,539)			(647)			(332)			—			9			140			(115)			4			(13,480)
Provision charged to operations			7,922			(198)			241			(155)			(148)			(93)			96			102			7,767
Balance at June 30,		$	18,902		$	13,524		$	17,885		$	685		$	3,434		$	4,308		$	625		$	1,175		$	60,538

		Six Months Ended June 30, 2016
		Domestic																					Foreign
					Commercial
					Real Estate:
					Other			Commercial
					Construction &			Real Estate:			Commercial
					Land			Farmland &			Real Estate:			Residential:			Residential:
		Commercial			Development			Commercial			Multifamily			First Lien			Junior Lien			Consumer			Foreign			Total
		(Dollars in Thousands)
Balance at December 31,		$	21,431		$	13,920		$	19,769		$	1,248		$	3,509		$	5,321		$	638		$	1,152		$	66,988
Losses charged to allowance			(24,467)			(2)			(1,890)			(180)			(30)			(324)			(217)			—			(27,110)
Recoveries credited to allowance			5,656			7			86			—			7			114			42			12			5,924
Net (losses) recoveries  charged to allowance			(18,811)			5			(1,804)			(180)			(23)			(210)			(175)			12			(21,186)
Provision charged to operations			23,362			(2,816)			(1,023)			(213)			(1,209)			(1,711)			69			(228)			16,231
Balance at June 30,		$	25,982		$	11,109		$	16,942		$	855		$	2,277		$	3,400		$	532		$	936		$	62,033

		Six Months Ended June 30, 2015
		Domestic																					Foreign
					Commercial
					Real Estate:
					Other			Commercial
					Construction &			Real Estate:			Commercial
					Land			Farmland &			Real Estate:			Residential:			Residential:
		Commercial			Development			Commercial			Multifamily			First Lien			Junior Lien			Consumer			Foreign			Total
		(Dollars in Thousands)
Balance at December 31,		$	22,352		$	12,955		$	18,683		$	846		$	3,589		$	4,683		$	660		$	1,060		$	64,828
Losses charged to allowance			(15,382)			(685)			(356)			—			(91)			(102)			(413)			—			(17,029)
Recoveries credited to allowance			1,330			39			813			—			24			251			130			8			2,595
Net (losses) recoveries  charged to allowance			(14,052)			(646)			457			—			(67)			149			(283)			8			(14,434)
Provision charged to operations			10,602			1,215			(1,255)			(161)			(88)			(524)			248			107			10,144
Balance at June 30,		$	18,902		$	13,524		$	17,885		$	685		$	3,434		$	4,308		$	625		$	1,175		$	60,538

Loans individually or collectively evaluated for their impairment and related allowance, by loan class

		June 30, 2016
		Loans Individually						Loans Collectively
		Evaluated For						Evaluated For
		Impairment						Impairment
		Recorded						Recorded
		Investment			Allowance			Investment			Allowance
		(Dollars in Thousands)
Domestic
Commercial		$	13,151		$	831		$	928,801		$	25,151
Commercial real estate: other construction & land development			4,150			116			1,681,961			10,993
Commercial real estate: farmland & commercial			10,243			131			1,943,528			16,811
Commercial real estate: multifamily			590			—			138,836			855
Residential: first lien			6,683			—			409,193			2,277
Residential: junior lien			1,021			—			580,412			3,400
Consumer			1,132			—			54,985			532
Foreign			753			—			176,158			936
Total		$	37,723		$	1,078		$	5,913,874		$	60,955

		December 31, 2015
		Loans Individually						Loans Collectively
		Evaluated For						Evaluated For
		Impairment						Impairment
		Recorded						Recorded
		Investment			Allowance			Investment			Allowance
		(Dollars in Thousands)
Domestic
Commercial		$	30,946		$	1,704		$	935,905		$	19,727
Commercial real estate: other construction & land development			6,221			100			1,643,606			13,820
Commercial real estate: farmland & commercial			13,806			202			1,981,643			19,567
Commercial real estate: multifamily			777			200			138,671			1,048
Residential: first lien			5,699			—			404,545			3,509
Residential: junior lien			950			—			551,388			5,321
Consumer			1,297			—			56,447			638
Foreign			752			—			178,261			1,152
Total		$	60,448		$	2,206		$	5,890,466		$	64,782

Loans accounted on non-accrual basis, by loan class

		June 30, 2016			December 31, 2015
		(Dollars in Thousands)
Domestic
Commercial		$	13,101		$	30,894
Commercial real estate: other construction & land development			2,272			3,668
Commercial real estate: farmland & commercial			8,003			11,543
Commercial real estate: multifamily			590			777
Residential: first lien			723			383
Residential: junior lien			182			21
Consumer			—			34
Foreign			379			365
Total non-accrual loans		$	25,250		$	47,685

Impaired loans, by loan class

		June 30, 2016
											Quarter to Date						Year to Date
					Unpaid						Average						Average
		Recorded			Principal			Related			Recorded			Interest			Recorded			Interest
		Investment			Balance			Allowance			Investment			Recognized			Investment			Recognized
		(Dollars in Thousands)
Loans with Related Allowance
Domestic
Commercial		$	2,319		$	3,660		$	831		$	3,453		$	—		$	3,735		$	—
Commercial real estate: other construction & land development			161			169			116			162			—			163			—
Commercial real estate: farmland & commercial			5,069			6,188			131			5,761			22			5,941			48
Total impaired loans with related allowance		$	7,549		$	10,017		$	1,078		$	9,376		$	22		$	9,839		$	48

		June 30, 2016
								Quarter to Date						Year to Date
					Unpaid			Average						Average
		Recorded			Principal			Recorded			Interest			Recorded			Interest
		Investment			Balance			Investment			Recognized			Investment			Recognized
		(Dollars in Thousands)
Loans with No Related Allowance
Domestic
Commercial		$	10,832		$	37,838		$	10,837		$	1		$	15,944		$	2
Commercial real estate: other construction & land development			3,989			3,995			5,155			20			5,726			45
Commercial real estate: farmland & commercial			5,174			6,144			5,709			—			6,649			—
Commercial real estate: multifamily			590			591			301			—			235			—
Residential: first lien			6,683			6,758			6,610			74			6,594			145
Residential: junior lien			1,021			1,059			1,008			12			1,022			27
Consumer			1,132			1,133			1,134			1			1,172			1
Foreign			753			753			755			4			751			8
Total impaired loans with no related allowance		$	30,174		$	58,271		$	31,509		$	112		$	38,093		$	228

		December 31, 2015
					Unpaid						Average
		Recorded			Principal			Related			Recorded			Interest
		Investment			Balance			Allowance			Investment			Recognized
		(Dollars in Thousands)
Loans with Related Allowance
Domestic
Commercial		$	4,016		$	4,156		$	1,704		$	19,313		$	—
Commercial real estate: other construction & land development			167			169			100			7,183			—
Commercial real estate: farmland & commercial			4,003			4,309			202			6,790			92
Commercial real estate: multifamily			599			599			200			—			—
Total impaired loans with related allowance		$	8,785		$	9,233		$	2,206		$	33,286		$	92

		December 31, 2015
					Unpaid			Average
		Recorded			Principal			Recorded			Interest
		Investment			Balance			Investment			Recognized
		(Dollars in Thousands)
Loans with No Related Allowance
Domestic
Commercial		$	26,930		$	38,845		$	21,291		$	1
Commercial real estate: other construction & land development			6,054			6,204			6,045			20
Commercial real estate: farmland & commercial			9,803			10,717			6,203			—
Commercial real estate: multifamily			178			178			819			—
Residential: first lien			5,699			5,822			5,315			65
Residential: junior lien			950			972			1,075			15
Consumer			1,297			1,298			1,263			1
Foreign			752			752			632			4
Total impaired loans with no related allowance		$	51,663		$	64,788		$	42,643		$	106

		June 30, 2015
			Quarter to Date						Year to Date
		Average						Average
		Recorded			Interest			Recorded			Interest
		Investment			Recognized			Investment			Recognized
		(Dollars in Thousands)
Loans with Related Allowance
Domestic
Commercial		$	15,121		$	—		$	17,828		$	—
Commercial real estate: other construction & land development			3,652			—			4,988			—
Commercial real estate: farmland & commercial			3,533			23			4,310			46
Total impaired loans with related allowance		$	22,306		$	23		$	27,126		$	46

		June 30, 2015
		Quarter to Date						Year to Date
		Average						Average
		Recorded			Interest			Recorded			Interest
		Investment			Recognized			Investment			Recognized
		(Dollars in Thousands)
Loans with No Related Allowance
Domestic
Commercial		$	20,752		$	1		$	20,288		$	2
Commercial real estate: other construction & land development			3,291			19			3,451			37
Commercial real estate: farmland & commercial			6,688			—			7,778			—
Commercial real estate: multifamily			832			—			839			1
Residential: first lien			5,289			61			5,329			123
Residential: junior lien			1,317			19			1,346			39
Consumer			1,153			1			1,171			1
Foreign			401			4			404			9
Total impaired loans with no related allowance		$	39,723		$	105		$	40,606		$	212

Loans accounted for as trouble debt restructuring, by loan class

		June 30, 2016			December 31, 2015
			(Dollars in Thousands)
Domestic
Commercial		$	2,407		$	2,419
Commercial real estate:  other construction & land development			1,879			2,553
Commercial real estate:  farmland & commercial			2,830			2,853
Residential:  first lien			5,960			5,316
Residential:  junior lien			839			929
Consumer			1,132			1,263
Foreign			373			386
Total troubled debt restructuring		$	15,420		$	15,719

Information regarding the aging of past due loans, by loan class

		June 30, 2016
											90 Days or			Total
		30 - 59			60 - 89			90 Days or			Greater &			Past						Total
		Days			Days			Greater			Still Accruing			Due			Current			Portfolio
		(Dollars in Thousands)
Domestic
Commercial		$	8,830		$	1,078		$	10,818		$	2,549		$	20,726		$	921,226		$	941,952
Commercial real estate: other construction & land development			2,404			199			2,254			143			4,857			1,681,254			1,686,111
Commercial real estate: farmland & commercial			9,269			2,940			4,643			189			16,852			1,936,919			1,953,771
Commercial real estate: multifamily			721			375			590			—			1,686			137,740			139,426
Residential: first lien			4,349			1,401			3,547			3,135			9,297			406,579			415,876
Residential: junior lien			710			256			494			325			1,460			579,973			581,433
Consumer			1,246			190			381			381			1,817			54,300			56,117
Foreign			1,467			383			685			306			2,535			174,376			176,911
Total past due loans		$	28,996		$	6,822		$	23,412		$	7,028		$	59,230		$	5,892,367		$	5,951,597

		December 31, 2015
											90 Days or			Total
		30 - 59			60 - 89			90 Days or			Greater &			Past						Total
		Days			Days			Greater			Still Accruing			Due			Current			Portfolio
			(Dollars in Thousands)
Domestic
Commercial		$	3,361		$	940		$	28,615		$	2,566		$	32,916		$	933,936		$	966,852
Commercial real estate: other construction & land development			193			293			3,502			—			3,988			1,645,839			1,649,827
Commercial real estate: farmland & commercial			2,684			1,328			8,292			3,373			12,304			1,983,144			1,995,448
Commercial real estate: multifamily			49			442			826			49			1,317			138,131			139,448
Residential: first lien			5,299			1,545			4,295			4,093			11,139			399,105			410,244
Residential: junior lien			713			413			646			640			1,772			550,566			552,338
Consumer			646			175			487			453			1,308			56,436			57,744
Foreign			2,639			83			807			442			3,529			175,484			179,013
Total past due loans		$	15,584		$	5,219		$	47,470		$	11,616		$	68,273		$	5,882,641		$	5,950,914

Summary of the loan portfolio by credit quality indicator, by loan class

					June 30, 2016
					Special			Watch			Watch List—			Watch List—
		Pass			Review			List—Pass			Substandard			Impaired
					(Dollars in Thousands)
Domestic
Commercial		$	769,116		$	—		$	90,274		$	69,411		$	13,151
Commercial real estate: other construction & land development			1,620,286			—			15,502			46,173			4,150
Commercial real estate: farmland & commercial			1,814,127			1,011			38,050			90,340			10,243
Commercial real estate: multifamily			138,714			—			—			122			590
Residential: first lien			404,862			—			4,177			154			6,683
Residential: junior lien			580,172			—			240			—			1,021
Consumer			54,984			—			—			1			1,132
Foreign			176,158			—			—			—			753
Total		$	5,558,419		$	1,011		$	148,243		$	206,201		$	37,723

					December 31, 2015
					Special			Watch			Watch List—			Watch List—
		Pass			Review			List—Pass			Substandard			Impaired
					(Dollars in Thousands)
Domestic
Commercial		$	771,999		$	42,152		$	31,539		$	90,215		$	30,946
Commercial real estate: other construction & land development			1,582,683			1,164			13,765			45,994			6,221
Commercial real estate: farmland & commercial			1,849,587			2,283			37,765			92,008			13,806
Commercial real estate: multifamily			138,546			—			—			125			777
Residential: first lien			401,053			—			—			3,492			5,699
Residential: junior lien			551,138			—			—			250			950
Consumer			56,440			—			—			7			1,297
Foreign			178,261			—			—			—			752
Total		$	5,529,707		$	45,599		$	83,069		$	232,091		$	60,448

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Tabular disclosure of financing receivables (examples of financing receivables include loans, trade accounts receivable and notes receivable) and activity in the allowance for credit losses account.

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Tabular disclosure of financing receivables by credit quality indicator. The credit quality indicator is a statistic about the credit quality of financing receivables. Examples include, but not limited to, consumer credit risk scores, credit-rating-agency ratings, an entity's internal credit risk grades, loan-to-value ratios, collateral, collection experience and other internal metrics.

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Tabular disclosure of impaired financing receivables.

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Tabular disclosure of financing receivables that are past due but not impaired, financing receivables that are 90 days past due and still accruing, and financing receivables on nonaccrual status.

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Tabular disclosure of the activity in the total allowance for credit losses related to financing receivables (such as loans or lease receivables) for entities that have an unclassified balance sheet, including the balance in the allowance at the beginning and end of each period, additions charged to operations, direct write-downs charged against the allowance, and recoveries of amounts previously charged off.

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Tabular disclosure of nonaccrual and past due financing receivables (such as loans and trade receivables), including: (a) the recorded investment in loans and trade receivables, if applicable, on nonaccrual status as of each balance sheet date (b) the recorded investment in loans and trade receivables, if applicable, past due 90 days or more and still accruing.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5111-111524

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- Definition

Tabular disclosure of financing receivables and troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953676-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953682-111524

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