Loans And Allowance For Loan Losses (Tables)

12 Months Ended

Dec. 31, 2017

Loans and Allowance for Loan Losses [Abstract]

Loans outstanding, by classification, at December 31, 2017 and 2016 are summarized below.



	December 31,
(in thousands)	2017			2016
Investment properties	$	5,670,065		$	5,869,261
1-4 family properties	781,619			888,553
Land and development	483,604			616,298
Total commercial real estate	6,935,288			7,374,112
Commercial, financial and agricultural	7,179,487			6,909,036
Owner-occupied	4,844,163			4,634,770
Total commercial and industrial	12,023,650			11,543,806
Home equity lines	1,514,227			1,617,265
Consumer mortgages	2,633,503			2,296,604
Credit cards	232,676			232,413
Other consumer loans	1,473,451			818,182
Total consumer	5,853,857			4,964,464
Total loans	24,812,795			23,882,382
Deferred fees and costs, net	(25,331		)	(25,991		)
Total loans, net of deferred fees and costs	$	24,787,464		$	23,856,391

Schedule of Current, Accruing Past Due, and Nonaccrual Loans

The following is a summary of current, accruing past due, and non-accrual loans by class as of December 31, 2017 and 2016.



Current, Accruing Past Due, and Non-accrual Loans
	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	⁽¹⁾

	December 31, 2016
( 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	$	5,861,198	$	2,795	$	—	$	2,795	$	5,268	$	5,869,261
1-4 family properties	874,477		4,801		161		4,962		9,114		888,553
Land and development	598,624		1,441		—		1,441		16,233		616,298
Total commercial real estate	7,334,299		9,037		161		9,198		30,615		7,374,112
Commercial, financial and agricultural	6,839,700		9,542		720		10,262		59,074		6,909,036
Owner-occupied	4,600,110		17,913		244		18,157		16,503		4,634,770
Total commercial and industrial	11,439,810		27,455		964		28,419		75,577		11,543,806
Home equity lines	1,585,228		10,013		473		10,486		21,551		1,617,265
Consumer mortgages	2,265,966		7,876		81		7,957		22,681		2,296,604
Credit cards	229,177		1,819		1,417		3,236		—		232,413
Other consumer loans	809,418		5,771		39		5,810		2,954		818,182
Total consumer	4,889,789		25,479		2,010		27,489		47,186		4,964,464
Total loans	$	23,663,898	$	61,971	$	3,135	$	65,106	$	153,378	$	23,882,382	⁽²⁾

⁽¹⁾Total before net deferred fees and costs of $25.3 million.

⁽²⁾Total before net deferred fees and costs of $26.0 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 the associated senior lien with other financial institutions.



Loan Portfolio Credit Exposure by Risk Grade
	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	⁽⁵⁾

	December 31, 2016
(in thousands)	Pass		Special Mention		Substandard⁽¹⁾		Doubtful⁽²⁾		Loss			Total
Investment properties	$	5,794,626	$	43,336	$	31,299	$	—	$	—		$	5,869,261
1-4 family properties	827,557		33,928		26,790		278		—			888,553
Land and development	521,745		60,205		27,361		6,987		—			616,298
Total commercial real estate	7,143,928		137,469		85,450		7,265		—			7,374,112
Commercial, financial and agricultural	6,635,757		126,268		140,425		6,445		141		⁽³⁾	6,909,036
Owner-occupied	4,461,174		60,856		111,330		1,410		—		⁽³⁾	4,634,770
Total commercial and industrial	11,096,931		187,124		251,755		7,855		141			11,543,806
Home equity lines	1,589,199		—		22,774		2,892		2,400		⁽³⁾	1,617,265
Consumer mortgages	2,271,916		—		23,268		1,283		137		⁽³⁾	2,296,604
Credit cards	230,997		—		637		—		779		⁽⁴⁾	232,413
Other consumer loans	814,843		—		3,233		42		64		⁽³⁾	818,182
Total consumer	4,906,955		—		49,912		4,217		3,380			4,964,464
Total loans	$	23,147,814	$	324,593	$	387,117	$	19,337	$	3,521		$	23,882,382	⁽⁶⁾

⁽¹⁾Includes $190.6 million and $256.6 million of Substandard accruing loans at December 31, 2017 and December 31, 2016, respectively.

⁽²⁾The loans within this risk grade are on non-accrual status and 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 $25.3 million.

⁽⁶⁾Total before net deferred fees and costs of $26.0 million.

Schedule of Allowances for Loan Losses and Recorded Investment in Loans

The following table details the change in the allowance for loan losses by loan segment for the years ended December 31, 2017, 2016 and 2015.




	As Of and For The Year Ended December 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	(12,193		)	(49,244		)	(28,982		)	(90,419		)
Recoveries	8,026			6,685			6,033			20,744
Provision for loan losses	(2,651		)	43,584			26,252			67,185
Ending balance⁽⁴⁾	$	74,998		$	126,803		$	47,467		$	249,268
Ending balance: individually evaluated for impairment	$	4,240		$	9,515		$	1,153		$	14,908
Ending balance: collectively evaluated for impairment	$	70,758		$	117,288		$	46,314		$	234,360
Loans
Ending balance: total loans^{(1) (4)}	$	6,935,288		$	12,023,650		$	5,853,857		$	24,812,795
Ending balance: individually evaluated for impairment	$	56,896		$	111,334		$	32,056		$	200,286
Ending balance: collectively evaluated for impairment	$	6,878,392		$	11,912,316		$	5,821,801		$	24,612,509

	As Of and For The Year Ended December 31, 2016
(in thousands)	Commercial Real Estate			Commercial & Industrial			Consumer			Total
Allowance for loan losses
Beginning balance	$	87,133		$	122,989		$	42,374		$	252,496
Charge-offs	(18,216		)	(25,039		)	(14,705		)	(57,960		)
Recoveries	15,226			9,071			4,925			29,222
Provision for loan losses	(2,327		)	18,757			11,570			28,000
Ending balance⁽⁴⁾	$	81,816		$	125,778		$	44,164		$	251,758
Ending balance: individually evaluated for impairment	$	7,916		$	8,384		$	1,811		$	18,111
Ending balance: collectively evaluated for impairment	$	73,900		$	117,394		$	42,353		$	233,647
Loans
Ending balance: total loans^{(2) (4)}	$	7,374,112		$	11,543,806		$	4,964,464		$	23,882,382
Ending balance: individually evaluated for impairment	$	91,410		$	120,560		$	37,526		$	249,496
Ending balance: collectively evaluated for impairment	$	7,282,702		$	11,423,246		$	4,926,938		$	23,632,886

	As Of and For The Year Ended December 31, 2015
(in thousands)	Commercial Real Estate			Commercial & Industrial			Consumer			Total
Allowance for loan losses
Beginning balance	$	101,471		$	118,110		$	41,736		$	261,317
Allowance for loan losses of sold Memphis loans	—			—			—			—
Charge-offs	(13,998		)	(22,583		)	(20,758		)	(57,339		)
Recoveries	13,644			8,611			7,253			29,508
Provision for loan losses	(13,984		)	18,851			14,143			19,010
Ending balance⁽⁴⁾	$	87,133		$	122,989		$	42,374		$	252,496
Ending balance: individually evaluated for impairment	$	18,969		$	10,477		$	989		$	30,435
Ending balance: collectively evaluated for impairment	$	68,164		$	112,512		$	41,385		$	222,061
Loans
Ending balance: total loans^{(3) (4)}	$	7,394,768		$	10,772,130		$	4,292,766		$	22,459,664
Ending balance: individually evaluated for impairment	$	157,958		$	105,599		$	38,243		$	301,800
Ending balance: collectively evaluated for impairment	$	7,236,810		$	10,666,531		$	4,254,523		$	22,157,864

⁽¹⁾Total before net deferred fees and costs of $25.3 million.

⁽²⁾Total before net deferred fees and costs of $26.0 million.

⁽³⁾Total before net deferred fees and costs of $30.1 million.

⁽⁴⁾ As of and for the years ended December 31, 2017, 2016, and 2015, there were no purchased credit-impaired loans and no allowance for loan losses for purchased credit-impaired loans.

Schedule of Impaired Loans

Below is a detailed summary of impaired loans (including accruing TDRs) by class as of and for the years ended December 31, 2017 and 2016.



Impaired Loans (including accruing TDRs)	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	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	189,264		189,498		14,908		190,695		6,961
Total
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



	December 31, 2016
(in thousands)	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average Recorded Investment		Interest Income Recognized
With no related allowance recorded
Investment properties	$	748	$	793	$	—	$	2,013	$	—
1-4 family properties	643		2,939		—		1,021		—
Land and development	2,099		7,243		—		6,769		—
Total commercial real estate	3,490		10,975		—		9,803		—
Commercial, financial and agricultural	17,958		20,577		—		6,321		—
Owner-occupied	5,508		7,377		—		8,394		—
Total commercial and industrial	23,466		27,954		—		14,715		—
Home equity lines	1,051		1,051		—		1,045		—
Consumer mortgages	744		814		—		870		—
Credit cards	—		—		—		—		—
Other consumer loans	—		—		—		—		—
Total consumer	1,795		1,865		—		1,915		—
Total	28,751		40,794		—		26,433		—
With allowance recorded
Investment properties	31,489		31,489		2,044		42,659		1,436
1-4 family properties	23,642		23,649		769		39,864		855
Land and development	32,789		32,788		5,103		25,568		995
Total commercial real estate	87,920		87,926		7,916		108,091		3,286
Commercial, financial and agricultural	43,386		45,913		5,687		51,968		1,215
Owner-occupied	53,708		53,942		2,697		52,300		1,946
Total commercial and industrial	97,094		99,855		8,384		104,268		3,161
Home equity lines	9,638		9,638		971		9,668		432
Consumer mortgages	20,953		20,953		673		20,993		1,014
Credit cards	—		—		—		—		—
Other consumer loans	5,140		5,140		167		5,062		303
Total consumer	35,731		35,731		1,811		35,723		1,749
Total	220,745		223,512		18,111		248,082		8,196
Total
Investment properties	32,237		32,282		2,044		44,672		1,436
1-4 family properties	24,285		26,588		769		40,885		855
Land and development	34,888		40,031		5,103		32,337		995
Total commercial real estate	91,410		98,901		7,916		117,894		3,286
Commercial, financial and agricultural	61,344		66,490		5,687		58,289		1,215
Owner-occupied	59,216		61,319		2,697		60,694		1,946
Total commercial and industrial	120,560		127,809		8,384		118,983		3,161
Home equity lines	10,689		10,689		971		10,713		432
Consumer mortgages	21,697		21,767		673		21,863		1,014
Credit cards	—		—		—		—		—
Other consumer loans	5,140		5,140		167		5,062		303
Total consumer	37,526		37,596		1,811		37,638		1,749
Total impaired loans	$	249,496	$	264,306	$	18,111	$	274,515	$	8,196

Troubled Debt Restructurings

The following tables represent, by concession type, the post-modification balance for loans modified or renewed during the years ended December 31, 2017, 2016, and 2015 that were reported as accruing or non-accruing TDRs.



TDRs by Concession Type
	Year Ended December 31, 2017
(in thousands, except contract data)	Number of Contracts	Principal Forgiveness		Below Market Interest Rate		Term Extensions and/or Other Concessions		Total
Investment properties	1	$	—	$	—	$	121	$	121
1-4 family properties	35	—		2,786		2,040		4,826
Land and development	6	—		157		1,614		1,771
Total commercial real estate	42	—		2,943		3,775		6,718
Commercial, financial and agricultural	56	—		9,434		12,145		21,579
Owner-occupied	4	—		35		1,705		1,740
Total commercial and industrial	60	—		9,469		13,850		23,319
Home equity lines	—	—		—		—		—
Consumer mortgages	11	—		2,539		1,190		3,729
Credit cards	—	—		—		—		—
Other consumer loans	38	—		1,624		1,333		2,957
Total consumer	49	—		4,163		2,523		6,686
Total loans	151	$	—	$	16,575	$	20,148	$	36,723	⁽¹⁾

⁽¹⁾No charge-offs were recorded during 2017 upon restructuring of these loans.



TDRs by Concession Type
	Year Ended December 31, 2016
(in thousands, except contract data)	Number of Contracts	Principal Forgiveness		Below Market Interest Rate		Term Extensions and/or Other Concessions		Total
Investment properties	4	$	—	$	1,825	$	3,518	$	5,343
1-4 family properties	39	—		5,499		1,488		6,987
Land and development	14	—		—		4,099		4,099
Total commercial real estate	57	—		7,324		9,105		16,429
Commercial, financial and agricultural	63	—		17,509		7,160		24,669
Owner-occupied	9	—		7,884		550		8,434
Total commercial and industrial	72	—		25,393		7,710		33,103
Home equity lines	5	—		225		123		348
Consumer mortgages	7	—		413		51		464
Credit cards	—	—		—		—		—
Other consumer loans	28	—		394		2,256		2,650
Total consumer	40	—		1,032		2,430		3,462
Total loans	169	$	—	$	33,749	$	19,245	$	52,994	⁽¹⁾

⁽¹⁾No charge-offs were recorded during 2016 upon restructuring of these loans.



TDRs by Concession Type
	Year Ended December 31, 2015
(in thousands, except contract data)	Number of Contracts	Principal Forgiveness		Below Market Interest Rate		Term Extensions and/or Other Concessions		Total
Investment properties	11	$	—	$	25,052	$	6,973	$	32,025
1-4 family properties	43	14,823		4,667		2,763		22,253
Land and development	12	—		614		1,532		2,146
Total commercial real estate	66	14,823		30,333		11,268		56,424
Commercial, financial and agricultural	91	29		3,191		6,477		9,697
Owner-occupied	10	—		3,417		2,064		5,481
Total commercial and industrial	101	29		6,608		8,541		15,178
Home equity lines	53	—		2,826		2,905		5,731
Consumer mortgages	15	—		1,011		895		1,906
Credit cards	—	—		—		—		—
Other consumer loans	27	—		444		703		1,147
Total consumer	95	—		4,281		4,503		8,784
Total loans	262	$	14,852	$	41,222	$	24,312	$	80,386	⁽¹⁾

⁽¹⁾Charge-offs of $4.0 million were recorded during 2015 upon restructuring of these loans.

Summary of Loans to Executive Officers and Directors, Including Their Associates