Loans and Allowance for Loan Losses (Tables)

3 Months Ended

Mar. 31, 2018

Loans and Allowance for Loan Losses [Abstract]

Schedule of Current, Accruing Past Due, and Nonaccrual Loans

The following is a summary of current, accruing past due, and non-accrual loans by portfolio class as of March 31, 2018 and December 31, 2017.



Current, Accruing Past Due, and Non-accrual Loans
	March 31, 2018
(in thousands)	Current		Accruing 30-89 Days Past Due		Accruing 90 Days or Greater Past Due		Total Accruing Past Due		Non-accrual		Total
Investment properties	$	5,613,811	$	1,986	$	323	$	2,309	$	2,930	$	5,619,050
1-4 family properties	753,255		2,232		783		3,015		2,634		758,904
Land and development	449,700		3,450		49		3,499		4,574		457,773
Total commercial real estate	6,816,766		7,668		1,155		8,823		10,138		6,835,727
Commercial, financial and agricultural	7,093,270		15,872		783		16,655		81,606		7,191,531
Owner-occupied	4,901,542		3,841		936		4,777		4,067		4,910,386
Total commercial and industrial	11,994,812		19,713		1,719		21,432		85,673		12,101,917
Home equity lines	1,450,454		6,718		431		7,149		14,868		1,472,471
Consumer mortgages	2,651,758		3,905		—		3,905		7,708		2,663,371
Credit cards	223,232		1,599		1,882		3,481		—		226,713
Other consumer loans	1,595,745		9,131		229		9,360		1,694		1,606,799
Total consumer	5,921,189		21,353		2,542		23,895		24,270		5,969,354
Total loans	$	24,732,767	$	48,734	$	5,416	$	54,150	$	120,081	$	24,906,998	⁽¹	⁾

	December 31, 2017
(in thousands)	Current		Accruing 30-89 Days Past Due		Accruing 90 Days or Greater Past Due		Total Accruing Past Due		Non-accrual		Total
Investment properties	$	5,663,665	$	2,506	$	90	$	2,596	$	3,804	$	5,670,065
1-4 family properties	775,023		3,545		202		3,747		2,849		781,619
Land and development	476,131		1,609		67		1,676		5,797		483,604
Total commercial real estate	6,914,819		7,660		359		8,019		12,450		6,935,288
Commercial, financial and agricultural	7,097,127		11,214		1,016		12,230		70,130		7,179,487
Owner-occupied	4,830,150		6,880		479		7,359		6,654		4,844,163
Total commercial and industrial	11,927,277		18,094		1,495		19,589		76,784		12,023,650
Home equity lines	1,490,808		5,629		335		5,964		17,455		1,514,227
Consumer mortgages	2,622,061		3,971		268		4,239		7,203		2,633,503
Credit cards	229,015		1,930		1,731		3,661		—		232,676
Other consumer loans	1,461,223		10,333		226		10,559		1,669		1,473,451
Total consumer	5,803,107		21,863		2,560		24,423		26,327		5,853,857
Total loans	$	24,645,203	$	47,617	$	4,414	$	52,031	$	115,561	$	24,812,795	⁽²	⁾

⁽¹⁾Total before net deferred fees and costs of $24.0 million.

⁽²⁾Total before net deferred fees and costs of $25.3 million.

Loan Portfolio Credit Exposure

In the following tables, consumer loans are generally assigned a risk grade similar to the classifications described above; however, upon reaching 90 days and 120 days past due, they are generally downgraded to Substandard and Loss, respectively, in accordance with the FFIEC Uniform Retail Credit Classification and Account Management Policy. Additionally, in accordance with the Interagency Supervisory Guidance on Allowance for Loan and Lease Losses Estimation Practices for Loans and Lines of Credit Secured by Junior Liens on 1-4 Family Residential Properties, the risk grade classifications of consumer loans (home equity lines and consumer mortgages) secured by junior liens on 1-4 family residential properties also consider available information on the payment status of any associated senior liens with other financial institutions.



Loan Portfolio Credit Exposure by Risk Grade
	March 31, 2018
(in thousands)	Pass		Special Mention		Substandard⁽¹⁾		Doubtful⁽²⁾		Loss			Total
Investment properties	$	5,545,689	$	53,193	$	20,168	$	—	$	—		$	5,619,050
1-4 family properties	729,023		14,331		15,550		—		—			758,904
Land and development	408,128		33,858		12,654		3,133		—			457,773
Total commercial real estate	6,682,840		101,382		48,372		3,133		—			6,835,727
Commercial, financial and agricultural	6,895,133		132,582		154,863		8,953		—			7,191,531
Owner-occupied	4,778,913		55,627		75,773		73		—			4,910,386
Total commercial and industrial	11,674,046		188,209		230,636		9,026		—			12,101,917
Home equity lines	1,452,171		—		18,421		271		1,608		⁽³⁾	1,472,471
Consumer mortgages	2,654,285		—		8,951		103		32		⁽³⁾	2,663,371
Credit cards	224,831		—		564		—		1,318		⁽⁴⁾	226,713
Other consumer loans	1,604,979		—		1,556		257		7		⁽³⁾	1,606,799
Total consumer	5,936,266		—		29,492		631		2,965			5,969,354
Total loans	$	24,293,152	$	289,591	$	308,500	$	12,790	$	2,965		$	24,906,998	⁽⁵	⁾

	December 31, 2017
(in thousands)	Pass		Special Mention		Substandard⁽¹⁾		Doubtful⁽²⁾		Loss			Total
Investment properties	$	5,586,792	$	64,628	$	18,645	$	—	$	—		$	5,670,065
1-4 family properties	745,299		19,419		16,901		—		—			781,619
Land and development	431,759		33,766		14,950		3,129		—			483,604
Total commercial real estate	6,763,850		117,813		50,496		3,129		—			6,935,288
Commercial, financial and agricultural	6,929,506		115,912		132,818		1,251		—			7,179,487
Owner-occupied	4,713,877		50,140		80,073		73		—			4,844,163
Total commercial and industrial	11,643,383		166,052		212,891		1,324		—			12,023,650
Home equity lines	1,491,105		—		21,079		285		1,758		⁽³⁾	1,514,227
Consumer mortgages	2,622,499		—		10,607		291		106		⁽³⁾	2,633,503
Credit cards	230,945		—		399		—		1,332		⁽⁴⁾	232,676
Other consumer loans	1,470,944		—		2,168		329		10		⁽³⁾	1,473,451
Total consumer	5,815,493		—		34,253		905		3,206			5,853,857
Total loans	$	24,222,726	$	283,865	$	297,640	$	5,358	$	3,206		$	24,812,795	₍₆	₎

⁽¹⁾ Includes $204.2 million and $190.6 million of Substandard accruing loans at March 31, 2018 and December 31, 2017, respectively.

⁽²⁾ The loans within this risk grade are on non-accrual status. Commercial loans generally have an allowance for loan losses in accordance with ASC 310, and retail loans generally have an allowance for loan losses equal to 50% of the loan amount.

⁽³⁾ The loans within this risk grade are on non-accrual status and have an allowance for loan losses equal to the full loan amount.

⁽⁴⁾Represent amounts that were 120 days past due. These credits are downgraded to the Loss category with an allowance for loan losses equal to the full loan amount and are generally charged off upon reaching 181 days past due in accordance with the FFIEC Uniform Retail Credit Classification and Account Management Policy.

⁽⁵⁾Total before net deferred fees and costs of $24.0 million.

⁽⁶⁾Total before net deferred fees and costs of $25.3 million.

Schedule of Allowances for Loan Losses and Recorded Investment in Loans

The following table details the changes in the allowance for loan losses by loan segment for the three months ended March 31, 2018.



Allowance for Loan Losses and Recorded Investment in Loans
	As Of and For The Three Months Ended March 31, 2018
(in thousands)	Commercial Real Estate			Commercial & Industrial			Consumer			Total
Allowance for loan losses:
Beginning balance	$	74,998		$	126,803		$	47,467		$	249,268
Charge-offs	(1,911		)	(8,015		)	(4,455		)	(14,381		)
Recoveries	5,723			3,112			1,266			10,101
Provision for loan losses	(4,819		)	12,845			4,750			12,776
Ending balance⁽¹⁾	$	73,991		$	134,745		$	49,028		$	257,764
Ending balance: individually evaluated for impairment	3,740			14,405			797			18,942
Ending balance: collectively evaluated for impairment	$	70,251		$	120,340		$	48,231		$	238,822
Loans:
Ending balance: total loans⁽¹⁾⁽²⁾	$	6,835,727		$	12,101,917		$	5,969,354		$	24,906,998
Ending balance: individually evaluated for impairment	49,221			112,823			29,608			191,652
Ending balance: collectively evaluated for impairment	$	6,786,506		$	11,989,094		$	5,939,746		$	24,715,346

	As Of and For The Three Months Ended March 31, 2017
(in thousands)	Commercial Real Estate			Commercial & Industrial			Consumer			Total
Allowance for loan losses:
Beginning balance	$	81,816		$	125,778		$	44,164		$	251,758
Charge-offs	(1,908		)	(6,893		)	(3,934		)	(12,735		)
Recoveries	2,889			1,824			1,104			5,817
Provision for loan losses	(4,483		)	6,387			6,770			8,674
Ending balance⁽¹⁾	$	78,314		$	127,096		$	48,104		$	253,514
Ending balance: individually evaluated for impairment	6,917			11,085			1,705			19,707
Ending balance: collectively evaluated for impairment	$	71,397		$	116,011		$	46,399		$	233,807
Loans:
Ending balance: total loans⁽¹⁾⁽³⁾	$	7,467,288		$	11,732,701		$	5,084,199		$	24,284,188
Ending balance: individually evaluated for impairment	79,203			120,470			35,083			234,756
Ending balance: collectively evaluated for impairment	$	7,388,085		$	11,612,231		$	5,049,116		$	24,049,432

⁽¹⁾As of and for the three months ended March 31, 2018 and 2017, there were no purchased credit-impaired loans and no allowance for loan losses for purchased credit-impaired loans.

⁽²⁾Total before net deferred fees and costs of $24.0 million.

⁽³⁾Total before net deferred fees and costs of $25.7 million.

Schedule of Impaired Loans

The tables below summarize impaired loans (including accruing TDRs) as of March 31, 2018 and December 31, 2017.



Impaired Loans (including accruing TDRs)
	March 31, 2018						Three Months Ended March 31, 2018
(in thousands)	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average Recorded Investment		Interest Income Recognized
With no related allowance recorded
Investment properties	$	—	$	—	$	—	$	—	$	—
1-4 family properties	—		—		—		—		—
Land and development	—		—		—		37		—
Total commercial real estate	—		—		—		37		—
Commercial, financial and agricultural	9,614		12,039		—		8,682		—
Owner-occupied	—		—		—		—		—
Total commercial and industrial	9,614		12,039		—		8,682		—
Home equity lines	1,086		1,086		—		2,122		—
Consumer mortgages	2,640		2,665		—		880		—
Credit cards	—		—		—		—		—
Other consumer loans	—		—		—		—		—
Total consumer	3,726		3,751		—		3,002		—
Total impaired loans with no related allowance recorded	$	13,340	$	15,790	$	—	$	11,721	$	—
With allowance recorded
Investment properties	$	19,388	$	19,388	$	753	$	22,769	$	198
1-4 family properties	12,008		12,008		392		11,715		216
Land and development	17,825		19,565		2,595		18,133		76
Total commercial real estate	49,221		50,961		3,740		52,617		490
Commercial, financial and agricultural	65,422		65,691		12,491		67,198		273
Owner-occupied	37,787		37,841		1,914		37,715		357
Total commercial and industrial	103,209		103,532		14,405		104,913		630
Home equity lines	3,475		3,475		44		4,383		45
Consumer mortgages	17,378		17,378		447		19,106		194
Credit cards	—		—		—		—		—
Other consumer loans	5,029		5,031		306		5,391		71
Total consumer	25,882		25,884		797		28,880		310
Total impaired loans with allowance recorded	$	178,312	$	180,377	$	18,942	$	186,410	$	1,430
Total impaired loans
Investment properties	$	19,388	$	19,388	$	753	$	22,769	$	198
1-4 family properties	12,008		12,008		392		11,715		216
Land and development	17,825		19,565		2,595		18,170		76
Total commercial real estate	49,221		50,961		3,740		52,654		490
Commercial, financial and agricultural	75,036		77,730		12,491		75,880		273
Owner-occupied	37,787		37,841		1,914		37,715		357
Total commercial and industrial	112,823		115,571		14,405		113,595		630
Home equity lines	4,561		4,561		44		6,505		45
Consumer mortgages	20,018		20,043		447		19,986		194
Credit cards	—		—		—		—		—
Other consumer loans	5,029		5,031		306		5,391		71
Total consumer	29,608		29,635		797		31,882		310
Total impaired loans	$	191,652	196,167		18,942		198,131		1,430



Impaired Loans (including accruing TDRs)
	December 31, 2017						Year Ended December 31, 2017
(in thousands)	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average Recorded Investment		Interest Income Recognized
With no related allowance recorded
Investment properties	$	—	—		—		123		—
1-4 family properties	—		—		—		323		—
Land and development	56		1,740		—		1,816		—
Total commercial real estate	56		1,740		—		2,262		—
Commercial, financial and agricultural	8,220		9,576		—		21,686		—
Owner-occupied	—		—		—		6,665		—
Total commercial and industrial	8,220		9,576		—		28,351		—
Home equity lines	2,746		2,943		—		1,205		—
Consumer mortgages	—		—		—		496		—
Credit cards	—		—		—		—		—
Other consumer loans	—		—		—		—		—
Total consumer	2,746		2,943		—		1,701		—
Total impaired loans with no related allowance recorded	$	11,022	14,259		—		32,314		—
With allowance recorded
Investment properties	$	23,364	23,364		1,100		28,749		1,144
1-4 family properties	15,056		15,056		504		16,257		925
Land and development	18,420		18,476		2,636		23,338		404
Total commercial real estate	56,840		56,896		4,240		68,344		2,473
Commercial, financial and agricultural	65,715		65,851		7,406		50,468		1,610
Owner-occupied	37,399		37,441		2,109		40,498		1,382
Total commercial and industrial	103,114		103,292		9,515		90,966		2,992
Home equity lines	5,096		5,096		114		7,476		334
Consumer mortgages	18,668		18,668		569		19,144		896
Credit cards	—		—		—		—		—
Other consumer loans	5,546		5,546		470		4,765		266
Total consumer	29,310		29,310		1,153		31,385		1,496
Total impaired loans with allowance recorded	$	189,264	189,498		14,908		190,695		6,961
Total impaired loans
Investment properties	$	23,364	23,364		1,100		28,872		1,144
1-4 family properties	15,056		15,056		504		16,580		925
Land and development	18,476		20,216		2,636		25,154		404
Total commercial real estate	56,896		58,636		4,240		70,606		2,473
Commercial, financial and agricultural	73,935		75,427		7,406		72,154		1,610
Owner-occupied	37,399		37,441		2,109		47,163		1,382
Total commercial and industrial	111,334		112,868		9,515		119,317		2,992
Home equity lines	7,842		8,039		114		8,681		334
Consumer mortgages	18,668		18,668		569		19,640		896
Credit cards	—		—		—		—		—
Other consumer loans	5,546		5,546		470		4,765		266
Total consumer	32,056		32,253		1,153		33,086		1,496
Total impaired loans	$	200,286	$	203,757	$	14,908	$	223,009	$	6,961

Troubled Debt Restructurings

The following tables represent, by concession type, the post-modification balance for loans modified or renewed during the three months ended March 31, 2018 and 2017 that were reported as accruing or non-accruing TDRs.



TDRs by Concession Type
	Three Months Ended March 31, 2018
(in thousands, except contract data)	Number of Contracts	Principal Forgiveness		Below Market Interest Rate		Term Extensions and/or Other Concessions		Total
Investment properties	1	$	—	$	—	$	1,959	$	1,959
1-4 family properties	6	—		963		—		963
Total commercial real estate	7	—		963		1,959		2,922
Commercial, financial and agricultural	9	—		—		989		989
Owner-occupied	2	—		2,705		93		2,798
Total commercial and industrial	11	—		2,705		1,082		3,787
Consumer mortgages	7	—		1,733		—		1,733
Other consumer loans	14	—		537		508		1,045
Total consumer	21	—		2,270		508		2,778
Total TDRs	39	$	—	$	5,938	$	3,549	$	9,487	⁽¹	⁾

⁽¹⁾No net charge-offs were recorded during the three months ended March 31, 2018 upon restructuring of these loans.



TDRs by Concession Type
	Three Months Ended March 31, 2017
(in thousands, except contract data)	Number of Contracts	Principal Forgiveness		Below Market Interest Rate		Term Extensions and/or Other Concessions		Total
1-4 family properties	8	—		1,611		317		1,928
Total commercial real estate	8	—		1,611		317		1,928
Commercial, financial and agricultural	18	—		3,865		5,539		9,404
Total commercial and industrial	18	—		3,865		5,539		9,404
Other consumer loans	3	—		—		275		275
Total consumer	3	—		—		275		275
Total TDRs	29	$	—	$	5,476	$	6,131	$	11,607	⁽²	⁾

⁽²⁾ No net charge-offs were recorded during the three months ended March 31, 2017 upon restructuring of these loans.