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Allowance for Probable Loan Losses (Tables)

3 Months Ended

Mar. 31, 2019

Allowance for Probable Loan Losses

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

		Three Months Ended March 31, 2019
		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,		$	12,596		$	15,123		$	19,353		$	1,808		$	3,467		$	7,719		$	447		$	871		$	61,384
Losses charged to allowance			(2,764)			—			(1)			—			(1)			(6)			(63)			—			(2,835)
Recoveries credited to allowance			638			20			283			—			1			102			17			—			1,061
Net (losses) recoveries  charged to allowance			(2,126)			20			282			—			—			96			(46)			—			(1,774)
Provision charged to operations			942			(354)			6,245			537			79			(70)			61			(20)			7,420
Balance at March 31,		$	11,412		$	14,789		$	25,880		$	2,345		$	3,546		$	7,745		$	462		$	851		$	67,030

		Three Months Ended March 31, 2018
		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,		$	27,905		$	11,675		$	16,663		$	1,109		$	2,950		$	6,103		$	440		$	842		$	67,687
Losses charged to allowance			(2,715)			(1)			—			—			(14)			(30)			(117)			—			(2,877)
Recoveries credited to allowance			583			2			18			—			1			66			12			—			682
Net (losses) recoveries  charged to allowance			(2,132)			1			18			—			(13)			36			(105)			—			(2,195)
Provision charged to operations			(5,082)			122			8,122			(162)			69			(1,450)			102			(59)			1,662
Balance at March 31,		$	20,691		$	11,798		$	24,803		$	947		$	3,006		$	4,689		$	437		$	783		$	67,154

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

		March 31, 2019
		Loans Individually						Loans Collectively
		Evaluated For						Evaluated For
		Impairment						Impairment
		Recorded						Recorded
		Investment			Allowance			Investment			Allowance
		(Dollars in Thousands)
Domestic
Commercial		$	18,608		$	666		$	1,194,931		$	10,746
Commercial real estate: other construction & land development			2,059			116			1,932,287			14,673
Commercial real estate: farmland & commercial			26,391			9,500			1,870,267			16,380
Commercial real estate: multifamily			507			—			293,605			2,345
Residential: first lien			6,216			—			450,698			3,546
Residential: junior lien			908			—			720,204			7,745
Consumer			1,074			—			44,999			462
Foreign			286			—			144,303			851
Total		$	56,049		$	10,282		$	6,651,294		$	56,748

		December 31, 2018
		Loans Individually						Loans Collectively
		Evaluated For						Evaluated For
		Impairment						Impairment
		Recorded						Recorded
		Investment			Allowance			Investment			Allowance
		(Dollars in Thousands)
Domestic
Commercial		$	9,179		$	656		$	1,119,790		$	11,940
Commercial real estate: other construction & land development			2,092			116			1,884,139			15,007
Commercial real estate: farmland & commercial			3,509			—			1,946,389			19,353
Commercial real estate: multifamily			507			—			225,750			1,808
Residential: first lien			6,244			—			439,556			3,467
Residential: junior lien			901			—			726,400			7,719
Consumer			1,175			—			45,141			447
Foreign			293			—			150,224			871
Total		$	23,900		$	772		$	6,537,389		$	60,612

Loans accounted on non-accrual basis, by loan class

		March 31, 2019			December 31, 2018
		(Dollars in Thousands)
Domestic
Commercial		$	18,573		$	9,143
Commercial real estate: other construction & land development			2,059			2,092
Commercial real estate: farmland & commercial			26,391			3,509
Commercial real estate: multifamily			507			507
Residential: first lien			319			347
Residential: junior lien			165			171
Consumer			14			22
Total non-accrual loans		$	48,028		$	15,791

Impaired loans, by loan class

		March 31, 2019
											Quarter to Date
					Unpaid						Average
		Recorded			Principal			Related			Recorded			Interest
		Investment			Balance			Allowance			Investment			Recognized
		(Dollars in Thousands)
Loans with Related Allowance
Domestic
Commercial		$	1,325		$	1,908		$	666		$	1,327		$	—
Commercial real estate: other construction & land development			134			169			116			135			—
Commercial real estate: farmland & commercial			24,463			24,774			9,500			24,480
Total impaired loans with related allowance		$	25,922		$	26,851		$	10,282		$	25,942		$	—

		March 31, 2019
								Quarter to Date
					Unpaid			Average
		Recorded			Principal			Recorded			Interest
		Investment			Balance			Investment			Recognized
		(Dollars in Thousands)
Loans with No Related Allowance
Domestic
Commercial		$	17,283		$	17,420		$	17,370		$	1
Commercial real estate: other construction & land development			1,925			2,167			1,924			—
Commercial real estate: farmland & commercial			1,928			2,493			2,305			—
Commercial real estate: multifamily			507			539			506			—
Residential: first lien			6,216			6,268			6,239			75
Residential: junior lien			908			918			912			11
Consumer			1,074			1,075			1,075			—
Foreign			286			286			288			3
Total impaired loans with no related allowance		$	30,127		$	31,166		$	30,619		$	90

		December 31, 2018
					Unpaid						Average
		Recorded			Principal			Related			Recorded			Interest
		Investment			Balance			Allowance			Investment			Recognized
		(Dollars in Thousands)
Loans with Related Allowance
Domestic
Commercial		$	1,563		$	2,161		$	656		$	1,741		$	—
Commercial real estate: other construction & land development			135			169			116			141			—
Total impaired loans with related allowance		$	1,698		$	2,330		$	772		$	1,882		$	—

		December 31, 2018
					Unpaid			Average
		Recorded			Principal			Recorded			Interest
		Investment			Balance			Investment			Recognized
		(Dollars in Thousands)
Loans with No Related Allowance
Domestic
Commercial		$	7,616		$	7,730		$	16,194		$	3
Commercial real estate: other construction & land development			1,957			2,205			2,151			—
Commercial real estate: farmland & commercial			3,509			4,031			36,632			—
Commercial real estate: multifamily			507			538			565			—
Residential: first lien			6,244			6,386			7,136			305
Residential: junior lien			901			911			976			44
Consumer			1,175			1,190			1,211			2
Foreign			293			293			327			14
Total impaired loans with no related allowance		$	22,202		$	23,284		$	65,192		$	368

The following table details key information regarding our impaired loans by loan class at March 31, 2018:

		March 31, 2018
		Quarter to Date
		Average
		Recorded			Interest
		Investment			Recognized
		(Dollars in Thousands)
Loans with Related Allowance
Domestic
Commercial		$	1,717		$	—
Commercial real estate: other construction & land development			144			—
Commercial real estate: farmland & commercial			15,103			—
Total impaired loans with related allowance		$	16,964		$	—

		March 31, 2018
		Quarter to Date
		Average
		Recorded			Interest
		Investment			Recognized
		(Dollars in Thousands)
Loans with No Related Allowance
Domestic
Commercial		$	16,820		$	1
Commercial real estate: other construction & land development			2,284			—
Commercial real estate: farmland & commercial			21,488			—
Commercial real estate: multifamily			471			—
Residential: first lien			6,960			77
Residential: junior lien			708			10
Consumer			1,208			1
Foreign			341			4
Total impaired loans with no related allowance		$	50,280		$	93

Loans accounted for as trouble debt restructuring, by loan class

		March 31, 2019			December 31, 2018
			(Dollars in Thousands)
Domestic
Commercial		$	34		$	35
Residential:  first lien			5,951			5,947
Residential:  junior lien			743			730
Consumer			1,060			1,153
Foreign			286			293
Total troubled debt restructuring		$	8,074		$	8,158

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

		March 31, 2019
											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		$	7,139		$	1,412		$	18,727		$	844		$	27,278		$	1,186,261		$	1,213,539
Commercial real estate: other construction & land development			7,451			1,111			1,865			1,041			10,427			1,923,919			1,934,346
Commercial real estate: farmland & commercial			6,486			5,292			25,328			401			37,106			1,859,552			1,896,658
Commercial real estate: multifamily			1,122			938			507			—			2,567			291,545			294,112
Residential: first lien			3,610			1,516			4,512			4,272			9,638			447,276			456,914
Residential: junior lien			982			815			1,739			1,574			3,536			717,576			721,112
Consumer			351			73			25			16			449			45,624			46,073
Foreign			3,018			726			144			144			3,888			140,701			144,589
Total past due loans		$	30,159		$	11,883		$	52,847		$	8,292		$	94,889		$	6,612,454		$	6,707,343

		December 31, 2018
											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		$	4,651		$	1,089		$	19,851		$	10,890		$	25,591		$	1,103,378		$	1,128,969
Commercial real estate: other construction & land development			727			1,707			922			16			3,356			1,882,875			1,886,231
Commercial real estate: farmland & commercial			2,928			784			27,239			24,910			30,951			1,918,947			1,949,898
Commercial real estate: multifamily			927			—			578			71			1,505			224,752			226,257
Residential: first lien			3,998			1,677			3,362			3,079			9,037			436,763			445,800
Residential: junior lien			1,155			618			1,108			937			2,881			724,420			727,301
Consumer			486			19			45			32			550			45,766			46,316
Foreign			1,106			117			739			739			1,962			148,555			150,517
Total past due loans		$	15,978		$	6,011		$	53,844		$	40,674		$	75,833		$	6,485,456		$	6,561,289

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

					March 31, 2019
					Special			Watch			Watch List—			Watch List—
		Pass			Review			List—Pass			Substandard			Impaired
					(Dollars in Thousands)
Domestic
Commercial		$	1,130,988		$	19		$	3,061		$	60,863		$	18,608
Commercial real estate: other construction & land development			1,865,359			1,640			9,284			56,004			2,059
Commercial real estate: farmland & commercial			1,669,873			62,012			39,269			99,113			26,391
Commercial real estate: multifamily			292,687			—			—			918			507
Residential: first lien			449,291			—			142			1,265			6,216
Residential: junior lien			719,334			—			870			—			908
Consumer			44,999			—			—			—			1,074
Foreign			144,303			—			—			—			286
Total		$	6,316,834		$	63,671		$	52,626		$	218,163		$	56,049

					December 31, 2018
					Special			Watch			Watch List—			Watch List—
		Pass			Review			List—Pass			Substandard			Impaired
					(Dollars in Thousands)
Domestic
Commercial		$	998,625		$	441		$	44,544		$	76,180		$	9,179
Commercial real estate: other construction & land development			1,817,098			1,648			9,055			56,338			2,092
Commercial real estate: farmland & commercial			1,726,711			62,046			38,373			119,259			3,509
Commercial real estate: multifamily			224,823			—			—			927			507
Residential: first lien			438,773			—			142			641			6,244
Residential: junior lien			725,538			—			862			—			901
Consumer			45,141			—			—			—			1,175
Foreign			150,224			—			—			—			293
Total		$	6,126,933		$	64,135		$	92,976		$	253,345		$	23,900

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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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