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Allowance for Probable Loan Losses (Tables)

12 Months Ended

Dec. 31, 2013

Allowance for Probable Loan Losses

Summary of the changes in the allowance for probable loan losses, by loan class

		December 31, 2013
		Domestic																					Foreign
		Commercial			Commercial real estate: other construction & land development			Commercial real estate: farmland & commercial			Commercial real estate: multifamily			Residential: first lien			Residential: junior lien			Consumer			Foreign			Total
		(Dollars in Thousands)
Balance at December 31,		$	11,632		$	12,720		$	21,880		$	694		$	4,390		$	4,448		$	1,289		$	1,140		$	58,193
Losses charge to allowance			(11,737	)		(278	)		(600	)		(5	)		(632	)		(620	)		(561	)		(22	)		(14,455	)
Recoveries credited to allowance			2,690			87			152			—			61			298			162			5			3,455
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
Net losses charged to allowance			(9,047	)		(191	)		(448	)		(5	)		(571	)		(322	)		(399	)		(17	)		(11,000	)
Provision (credit) charged to operations			19,848			12			3,035			87			(7	)		123			(140	)		10			22,968
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
Balance at December 31,		$	22,433		$	12,541		$	24,467		$	776		$	3,812		$	4,249		$	750		$	1,133		$	70,161
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​

		December 31, 2012
		Domestic																					Foreign
		Commercial			Commercial real estate: other construction & land development			Commercial real estate: farmland & commercial			Commercial real estate: multifamily			Residential: first lien			Residential: junior lien			Consumer			Foreign			Total
		(Dollars in Thousands)
Balance at December 31,		$	26,617		$	19,940		$	24,227		$	1,003		$	4,562		$	4,760		$	1,724		$	1,359		$	84,192
Losses charge to allowance			(34,721	)		(7,617	)		(13,724	)		—			(227	)		(1,190	)		(756	)		(111	)		(58,346	)
Recoveries credited to allowance			3,547			229			220			—			13			195			184			—			4,388
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
Net losses charged to allowance			(31,174	)		(7,388	)		(13,504	)		—			(214	)		(995	)		(572	)		(111	)		(53,958	)
Provision (credit) charged to operations			16,189			168			11,157			(309	)		42			683			137			(108	)		27,959
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
Balance at December 31,		$	11,632		$	12,720		$	21,880		$	694		$	4,390		$	4,448		$	1,289		$	1,140		$	58,193
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​

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

		December 31, 2013
		Loans individually evaluated for impairment						Loans collectively evaluated for impairment
		Recorded Investment			Allowance			Recorded Investment			Allowance
		(Dollars in Thousands)
Domestic
Commercial		$	34,183		$	12,234		$	1,008,459		$	10,199
Commercial real estate: other construction & land development			13,976			852			1,194,532			11,689
Commercial real estate: farmland & commercial			16,038			2,916			1,734,001			21,551
Commercial real estate: multifamily			295			—			101,803			776
Residential: first lien			6,153			—			432,309			3,812
Residential: junior lien			3,206			—			406,024			4,249
Consumer			1,606			—			64,808			750
Foreign			436			—			181,406			1,133
​	​	​	​	​	​	​	​	​	​	​	​	​	​
Total		$	75,893		$	16,002		$	5,123,342		$	54,159
​	​	​	​	​	​	​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​	​	​	​	​	​	​

		December 31, 2012
		Loans individually evaluated for impairment						Loans collectively evaluated for impairment
		Recorded Investment			Allowance			Recorded Investment			Allowance
		(Dollars in Thousands)
Domestic
Commercial		$	32,768		$	1,477		$	736,342		$	10,155
Commercial real estate: other construction & land development			28,660			539			1,119,009			12,181
Commercial real estate: farmland & commercial			13,945			2,730			1,659,377			19,150
Commercial real estate: multifamily			353			—			82,595			694
Residential: first lien			3,656			—			453,075			4,390
Residential: junior lien			1,850			—			379,886			4,448
Consumer			1,326			—			73,188			1,289
Foreign			447			—			188,527			1,140
​	​	​	​	​	​	​	​	​	​	​	​	​	​
Total		$	83,005		$	4,746		$	4,691,999		$	53,447
​	​	​	​	​	​	​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​	​	​	​	​	​	​

Loans accounted on non-accrual basis, by loan class

		December 31,
		2013			2012
		(Dollars in Thousands)
Domestic
Commercial		$	34,110		$	31,929
Commercial real estate: other construction & land development			11,726			26,410
Commercial real estate: farmland & commercial			13,775			11,681
Commercial real estate: multifamily			295			353
Residential: first lien			1,266			1,175
Residential: junior lien			1,576			175
Consumer			75			45
​	​	​	​	​	​	​	​
Total non-accrual loans		$	62,823		$	71,768
​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​

Impaired loans, by loan class

		December 31, 2013
		Recorded Investment			Unpaid Principal Balance			Related Allowance			Average Recorded Investment			Interest Recognized
		(Dollars in Thousands)
Loans with Related Allowance
Domestic
Commercial		$	17,178		$	17,177		$	12,234		$	18,019		$	38
Commercial real estate: other construction & land development			6,818			6,825			852			6,058			—
Commercial real estate: farmland & commercial			7,259			10,697			2,916			7,167			92
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
Total impaired loans with related allowance		$	31,255		$	34,699		$	16,002		$	31,244		$	130
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​

		December 31, 2013
		Recorded Investment			Unpaid Principal Balance			Average Recorded Investment			Interest Recognized
		(Dollars in Thousands)
Loans with No Related Allowance
Domestic
Commercial		$	17,005		$	17,023		$	16,778		$	2
Commercial real estate: other construction & land development			7,158			7,187			18,164			74
Commercial real estate: farmland & commercial			8,779			9,949			7,313			—
Commercial real estate: multifamily			295			295			322			—
Residential: first lien			6,153			6,258			4,860			179
Residential: junior lien			3,206			3,226			2,347			99
Consumer			1,606			1,612			1,380			1
Foreign			436			436			452			19
​	​	​	​	​	​	​	​	​	​	​	​	​	​
Total impaired loans with no related allowance		$	44,638		$	45,986		$	51,616		$	374
​	​	​	​	​	​	​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​	​	​	​	​	​	​

		December 31, 2012
		Recorded Investment			Unpaid Principal Balance			Related Allowance			Average Recorded Investment			Interest Recognized
		(Dollars in Thousands)
Loans with Related Allowance
Domestic
Commercial		$	1,633		$	1,679		$	1,477		$	21,126		$	39
Commercial real estate: other construction & land development			3,671			3,671			539			6,608			—
Commercial real estate: farmland & commercial			6,678			9,923			2,730			7,342			92
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
Total impaired loans with related allowance		$	11,982		$	15,273		$	4,746		$	35,076		$	131
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​

		December 31, 2012
		Recorded Investment			Unpaid Principal Balance			Average Recorded Investment			Interest Recognized
		(Dollars in Thousands)
Loans with No Related Allowance
Domestic
Commercial		$	31,135		$	31,170		$	2,996		$	4
Commercial real estate: other construction & land development			24,989			25,160			39,449			141
Commercial real estate: farmland & commercial			7,267			9,340			16,536			8
Commercial real estate: multifamily			353			353			381			—
Residential: first lien			3,656			3,984			2,876			60
Residential: junior lien			1,850			1,944			1,939			104
Consumer			1,326			1,330			1,193			—
Foreign			447			447			166			6
​	​	​	​	​	​	​	​	​	​	​	​	​	​
Total impaired loans with no related allowance		$	71,023		$	73,728		$	65,536		$	323
​	​	​	​	​	​	​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​	​	​	​	​	​	​

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

		December 31, 2013
		30 - 59 Days			60 - 89 Days			90 Days or Greater			90 Days or greater & still accruing			Total Past due			Current			Total Portfolio
		(Dollars in Thousands)
Domestic
Commercial		$	4,240		$	538		$	36,066		$	2,051		$	40,844		$	1,001,798		$	1,042,642
Commercial real estate: other construction & land development			1,042			—			9,942			62			10,984			1,197,524			1,208,508
Commercial real estate: farmland & commercial			6,216			520			6,990			417			13,726			1,736,313			1,750,039
Commercial real estate: multifamily			39			142			295			—			476			101,622			102,098
Residential: first lien			4,758			3,046			4,541			3,518			12,345			426,117			438,462
Residential: junior lien			606			198			1,900			368			2,704			406,526			409,230
Consumer			1,523			469			803			781			2,795			63,619			66,414
Foreign			1,467			417			—			—			1,884			179,958			181,842
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
Total past due loans		$	19,891		$	5,330		$	60,537		$	7,197		$	85,758		$	5,113,477		$	5,199,235
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​

		December 31, 2012
		30 - 59 Days			60 - 89 Days			90 Days or Greater			90 Days or greater & still accruing			Total Past due			Current			Total Portfolio
		(Dollars in Thousands)
Domestic
Commercial		$	4,393		$	471		$	3,386		$	2,689		$	8,250		$	760,860		$	769,110
Commercial real estate: other construction & land development			1,107			2,300			24,225			497			27,632			1,120,037			1,147,669
Commercial real estate: farmland & commercial			3,127			21,272			2,310			929			26,709			1,646,613			1,673,322
Commercial real estate: multifamily			685			—			353			—			1,038			81,910			82,948
Residential: first lien			4,305			2,510			10,645			9,657			17,460			439,271			456,731
Residential: junior lien			2,035			410			259			115			2,704			379,032			381,736
Consumer			1,598			404			915			882			2,917			71,597			74,514
Foreign			2,257			1,005			264			264			3,526			185,448			188,974
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
Total past due loans		$	19,507		$	28,372		$	42,357		$	15,033		$	90,236		$	4,684,768		$	4,775,004
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​

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

					December 31, 2013
		Pass			Special Review			Watch List—Pass			Watch List— Substandard			Watch List— Impaired
					(Dollars in Thousands)
Domestic
Commercial		$	955,522		$	2,270		$	4,389		$	46,278		$	34,183
Commercial real estate: other construction & land development			1,167,295			14,247			9,318			3,672			13,976
Commercial real estate: farmland & commercial			1,635,179			56,438			21,912			20,472			16,038
Commercial real estate: multifamily			100,948			—			—			855			295
Residential: first lien			432,067			122			—			120			6,153
Residential: junior lien			405,731			—			—			293			3,206
Consumer			64,808			—			—			—			1,606
Foreign			180,837			—			—			569			436
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
Total		$	4,942,387		$	73,077		$	35,619		$	72,259		$	75,893
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​

					December 31, 2012
		Pass			Special Review			Watch List—Pass			Watch List— Substandard			Watch List— Impaired
					(Dollars in Thousands)
Domestic
Commercial		$	675,263		$	4,278		$	16,535		$	40,266		$	32,768
Commercial real estate: other construction & land development			1,038,749			55,079			2,614			22,567			28,660
Commercial real estate: farmland & commercial			1,486,572			109,144			46,316			17,345			13,945
Commercial real estate: multifamily			82,542			—			53			—			353
Residential: first lien			446,218			519			—			6,338			3,656
Residential: junior lien			378,000			77			309			1,500			1,850
Consumer			73,188			—			—			—			1,326
Foreign			188,499			—			28			—			447
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
Total		$	4,369,031		$	169,097		$	65,855		$	88,016		$	83,005
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​

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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 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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