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Loans and Allowance for Credit Losses (Tables)

6 Months Ended

Jun. 30, 2023

Accounts Notes And Loans Receivable [Line Items]

Loans, Net of Unearned Income

The following table presents loans, net of unearned income, by portfolio class at June 30, 2023 and December 31, 2022.

		June 30,				December 31,
($ in thousands)		2023				2022
Commercial non-real estate		$	10,113,932			$	10,146,453
Commercial real estate - owner occupied			3,058,829				3,033,058
Total commercial and industrial			13,172,761				13,179,511
Commercial real estate - income producing			3,762,428				3,560,991
Construction and land development			1,768,252				1,703,592
Residential mortgages			3,581,514				3,092,605
Consumer			1,504,931				1,577,347
Total loans		$	23,789,886			$	23,114,046

Allowance for Credit Losses by Portfolio Class

The following tables present activity in the allowance for credit losses (ACL) by portfolio class for the six months ended June 30, 2023 and 2022, as well as the corresponding recorded investment in loans at the end of each period.

				Commercial			Total			Commercial
	Commercial			real estate-			commercial			real estate-			Construction
	non-real			owner			and			income			and land			Residential
($ in thousands)	estate			occupied			industrial			producing			development			mortgages			Consumer			Total
	Six Months Ended June 30, 2023
Allowance for credit losses
Allowance for loan losses:
Beginning balance	$	96,461		$	48,284		$	144,745		$	71,961		$	30,498		$	32,464		$	28,121		$	307,789
Charge-offs		(7,503	)		—			(7,503	)		(73	)		(72	)		(28	)		(6,912	)		(14,588	)
Recoveries		2,694			350			3,044			10			6			480			1,953			5,493
Net provision for loan losses		4,543			(2,339	)		2,204			5,243			912			3,681			3,762			15,802
Ending balance - allowance for loan losses	$	96,195		$	46,295		$	142,490		$	77,141		$	31,344		$	36,597		$	26,924		$	314,496
Reserve for unfunded lending commitments:
Beginning balance	$	4,984		$	302		$	5,286		$	1,395		$	25,110		$	31		$	1,487		$	33,309
Provision for losses on unfunded commitments		12			27			39			28			(2,227	)		(8	)		19			(2,149	)
Ending balance - reserve for unfunded lending commitments		4,996			329			5,325			1,423			22,883			23			1,506			31,160
Total allowance for credit losses	$	101,191		$	46,624		$	147,815		$	78,564		$	54,227		$	36,620		$	28,430		$	345,656
Allowance for loan losses:
Individually evaluated	$	7,501		$	—		$	7,501		$	—		$	—		$	—		$	—		$	7,501
Collectively evaluated		88,694			46,295			134,989			77,141			31,344			36,597			26,924			306,995
Allowance for loan losses	$	96,195		$	46,295		$	142,490		$	77,141		$	31,344		$	36,597		$	26,924		$	314,496
Reserve for unfunded lending commitments:
Individually evaluated	$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—
Collectively evaluated		4,996			329			5,325			1,423			22,883			23			1,506			31,160
Reserve for unfunded lending commitments:	$	4,996		$	329		$	5,325		$	1,423		$	22,883		$	23		$	1,506		$	31,160
Total allowance for credit losses	$	101,191		$	46,624		$	147,815		$	78,564		$	54,227		$	36,620		$	28,430		$	345,656
Loans:
Individually evaluated	$	35,697		$	675		$	36,372		$	—		$	—		$	1,135		$	—		$	37,507
Collectively evaluated		10,078,235			3,058,154			13,136,389			3,762,428			1,768,252			3,580,379			1,504,931			23,752,379
Total loans	$	10,113,932		$	3,058,829		$	13,172,761		$	3,762,428		$	1,768,252		$	3,581,514		$	1,504,931		$	23,789,886

				Commercial			Total			Commercial
	Commercial			real estate-			commercial			real estate-			Construction
	non-real			owner			and			income			and land			Residential
($ in thousands)	estate			occupied			industrial			producing			development			mortgages			Consumer			Total
	Six Months Ended June 30, 2022
Allowance for credit losses
Allowance for loan losses:
Beginning balance	$	95,888		$	53,433		$	149,321		$	108,058		$	22,102		$	30,623		$	31,961		$	342,065
Charge-offs		(3,747	)		(857	)		(4,604	)		(1,066	)		(3	)		(60	)		(5,627	)		(11,360	)
Recoveries		6,603			491			7,094			878			126			527			3,102			11,727
Net provision for loan losses		(5,925	)		(3,452	)		(9,377	)		(24,919	)		2,478			(2,506	)		67			(34,257	)
Ending balance - allowance for loan losses	$	92,819		$	49,615		$	142,434		$	82,951		$	24,703		$	28,584		$	29,503		$	308,175
Reserve for unfunded lending commitments:
Beginning balance	$	4,522		$	323		$	4,845		$	1,694		$	21,907		$	22		$	866		$	29,334
Provision for losses on unfunded commitments		51			40			91			(274	)		1,598			2			552			1,969
Ending balance - reserve for unfunded lending commitments		4,573			363			4,936			1,420			23,505			24			1,418			31,303
Total allowance for credit losses	$	97,392		$	49,978		$	147,370		$	84,371		$	48,208		$	28,608		$	30,921		$	339,478
Allowance for loan losses:
Individually evaluated	$	76		$	31		$	107		$	18		$	19		$	322		$	170		$	636
Collectively evaluated		92,743			49,584			142,327			82,933			24,684			28,262			29,333			307,539
Allowance for loan losses	$	92,819		$	49,615		$	142,434		$	82,951		$	24,703		$	28,584		$	29,503		$	308,175
Reserve for unfunded lending commitments:
Individually evaluated	$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—
Collectively evaluated		4,573			363			4,936			1,420			23,505			24			1,418			31,303
Reserve for unfunded lending commitments:	$	4,573		$	363		$	4,936		$	1,420		$	23,505		$	24		$	1,418		$	31,303
Total allowance for credit losses	$	97,392		$	49,978		$	147,370		$	84,371		$	48,208		$	28,608		$	30,921		$	339,478
Loans:
Individually evaluated	$	1,559		$	937		$	2,496		$	1,289		$	120		$	3,991		$	905		$	8,801
Collectively evaluated		9,643,533			2,963,537			12,607,070			3,639,954			1,408,607			2,611,816			1,569,820			21,837,267
Total loans	$	9,645,092		$	2,964,474		$	12,609,566		$	3,641,243		$	1,408,727		$	2,615,807		$	1,570,725		$	21,846,068

Composition of Nonaccrual Loans and Without an Allowance for Loan Loss by Portfolio Class

The following table shows the composition of nonaccrual loans and those without an allowance for loan loss, by portfolio class.

			June 30, 2023										December 31, 2022
($ in thousands)			Total nonaccrual					Nonaccrual without allowance for loan loss					Total nonaccrual					Nonaccrual without allowance for loan loss
Commercial non-real estate		$		40,268			$		10,256			$		4,020			$		941
Commercial real estate - owner occupied				2,295					675					1,461					692
Total commercial and industrial				42,563					10,931					5,481					1,633
Commercial real estate - income producing				356					—					1,240					1,174
Construction and land development				370					—					309					—
Residential mortgages				27,458					1,135					25,269					1,884
Consumer				7,473					—					6,692					—
Total loans		$		78,220			$		12,066			$		38,991					4,691

Provides Detail by Portfolio Class for Reportable MEFDs

The tables below provides detail by portfolio class for reportable MEFDs entered into during the three and six months ended June 30, 2023.

		Three Months Ended June 30, 2023
		Term extension								Payment delay								Term extensions and payment delay
($ in thousands)		Balance				Percentage of portfolio				Balance				Percentage of portfolio				Balance				Percentage of portfolio
Commercial non-real estate		$	900				0.01	%		$	100				0.00	%		$	907				0.01	%
Commercial real estate - owner occupied			—				—				—				—				675				0.02	%
Total commercial and industrial			900				0.01	%			100				0.00	%			1,582				0.01	%
Commercial real estate - income producing			—				—				—				—				—				—
Construction and land development			—				—				—				—				—				—
Residential mortgages			—				—				—				—				—				—
Consumer			—				—				—				—				—				—
Total reportable modified loans		$	900				0.00	%		$	100				0.00	%		$	1,582				0.01	%

		Six Months Ended June 30, 2023
		Term extension								Payment delay								Term extensions and payment delay
($ in thousands)		Balance				Percentage of portfolio				Balance				Percentage of portfolio				Balance				Percentage of portfolio
Commercial non-real estate		$	909				0.01	%		$	100				0.00	%		$	907				0.01	%
Commercial real estate - owner occupied			—				—				—				—				675				0.02	%
Total commercial and industrial			909				0.01	%			100				0.00	%			1,582				0.01	%
Commercial real estate - income producing			—				—				—				—				—				—
Construction and land development			—				—				—				—				—				—
Residential mortgages			—				—				—				—				—				—
Consumer			—				—				—				—				—				—
Total reportable modified loans		$	909				0.00	%		$	100				0.00	%		$	1,582				0.01	%

Aging Analysis of Past Due Loans by Portfolio Class

The tables below present the aging analysis of past due loans by portfolio class at June 30, 2023 and December 31, 2022.

June 30, 2023	30-59 days past due			60-89 days past due			Greater than 90 days past due			Total past due			Current			Total Loans			Recorded investment > 90 days and still accruing
($ in thousands)
Commercial non-real estate	$	26,086		$	15,244		$	29,531		$	70,861		$	10,043,071		$	10,113,932		$	742
Commercial real estate - owner occupied		2,448			21,404			3,332			27,184			3,031,645			3,058,829			2,966
Total commercial and industrial		28,534			36,648			32,863			98,045			13,074,716			13,172,761			3,708
Commercial real estate - income producing		18,104			172			1,535			19,811			3,742,617			3,762,428			1,237
Construction and land development		666			375			184			1,225			1,767,027			1,768,252			53
Residential mortgages		6,046			9,231			19,920			35,197			3,546,317			3,581,514			1,538
Consumer		9,797			3,036			4,462			17,295			1,487,636			1,504,931			1,016
Total	$	63,147		$	49,462		$	58,964		$	171,573		$	23,618,313		$	23,789,886		$	7,552

December 31, 2022	30-59 days past due			60-89 days past due			Greater than 90 days past due			Total past due			Current			Total Loans			Recorded investment > 90 days and still accruing
($ in thousands)
Commercial non-real estate	$	4,050		$	21,329		$	3,418		$	28,797		$	10,117,656		$	10,146,453		$	996
Commercial real estate - owner occupied		19,069			3,346			1,894			24,309			3,008,749			3,033,058			1,623
Total commercial and industrial		23,119			24,675			5,312			53,106			13,126,405			13,179,511			2,619
Commercial real estate - income producing		879			—			1,174			2,053			3,558,938			3,560,991			—
Construction and land development		4,029			242			133			4,404			1,699,188			1,703,592			54
Residential mortgages		28,208			11,056			17,346			56,610			3,035,995			3,092,605			293
Consumer		8,845			2,806			4,407			16,058			1,561,289			1,577,347			1,619
Total	$	65,080		$	38,779		$	28,372		$	132,231		$	22,981,815		$	23,114,046		$	4,585

Credit Quality Indicators by Segment and Portfolio Class

The following tables present credit quality disclosures of amortized cost by portfolio class and vintage for term loans and by revolving and revolving converted to amortizing at June 30, 2023 and December 31, 2022. The Company defines vintage as the later of origination, renewal or modification date. The gross charge-offs presented in the table are for the six months ended June 30, 2023.

	Term Loans																					Revolving Loans
June 30, 2023	Amortized Cost Basis by Origination Year																		Revolving			Converted to
($ in thousands)	2023			2022			2021			2020			2019			Prior			Loans			Term Loans			Total
Commercial Non-Real Estate:
Pass	$	933,613		$	2,143,997		$	1,279,430		$	574,614		$	459,156		$	984,492		$	3,189,964		$	76,321		$	9,641,587
Pass-Watch		25,996			43,916			31,946			8,621			5,795			50,105			76,553			11,610			254,542
Special Mention		374			9,178			13,290			1,494			3,503			928			15,551			5,346			49,664
Substandard		25,344			16,040			13,076			29,987			20,553			11,815			46,867			4,457			168,139
Doubtful		—			—			—			—			—			—			—			—			—
Total	$	985,327		$	2,213,131		$	1,337,742		$	614,716		$	489,007		$	1,047,340		$	3,328,935		$	97,734		$	10,113,932
Gross Charge-offs	$	123		$	765		$	365		$	560		$	52		$	75		$	4,401		$	1,162		$	7,503
Commercial Real Estate - Owner Occupied:
Pass	$	202,261		$	669,168		$	622,617		$	521,183		$	301,412		$	584,480		$	31,077		$	12,671		$	2,944,869
Pass-Watch		3,561			7,360			4,715			2,850			18,987			17,091			860			—			55,424
Special Mention		574			—			—			665			—			3,961			375			—			5,575
Substandard		18,630			7,127			636			7,364			4,663			13,337			1,204			—			52,961
Doubtful		—			—			—			—			—			—			—			—			—
Total	$	225,026		$	683,655		$	627,968		$	532,062		$	325,062		$	618,869		$	33,516		$	12,671		$	3,058,829
Gross Charge-offs	$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—
Commercial Real Estate - Income Producing:
Pass	$	257,809		$	885,797		$	921,288		$	672,062		$	369,717		$	416,420		$	64,297		$	50,589		$	3,637,979
Pass-Watch		12,061			2,308			347			59,456			22,591			2,564			300			400			100,027
Special Mention		18,054			—			—			—			—			368			—			—			18,422
Substandard		3,652			378			298			1,237			8			427			—			—			6,000
Doubtful		—			—			—			—			—			—			—			—			—
Total	$	291,576		$	888,483		$	921,933		$	732,755		$	392,316		$	419,779		$	64,597		$	50,989		$	3,762,428
Gross Charge-offs	$	73		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	73
Construction and Land Development:
Pass	$	225,757		$	837,674		$	461,103		$	89,496		$	6,823		$	22,374		$	109,044		$	5,252		$	1,757,523
Pass-Watch		4,967			1,343			1,455			95			480			556			384			—			9,280
Special Mention		703			—			—			—			187			—			—			—			890
Substandard		—			51			46			—			11			451			—			—			559
Doubtful		—			—			—			—			—			—			—			—			—
Total	$	231,427		$	839,068		$	462,604		$	89,591		$	7,501		$	23,381		$	109,428		$	5,252		$	1,768,252
Gross Charge-offs	$	—		$	7		$	54		$	—		$	—		$	11		$	—		$	—		$	72
Residential Mortgage:
Performing	$	339,250		$	695,785		$	870,203		$	508,117		$	184,657		$	952,450		$	3,594			—		$	3,554,056
Nonperforming		84			1,789			3,592			104			1,407			20,482			—			—			27,458
Total	$	339,334		$	697,574		$	873,795		$	508,221		$	186,064		$	972,932		$	3,594		$	—		$	3,581,514
Gross Charge-offs	$	—		$	—		$	—		$	—		$	—		$	28		$	—		$	—		$	28
Consumer Loans:
Performing	$	49,014		$	74,332		$	47,360		$	36,171		$	44,841		$	57,928		$	1,180,993		$	6,819		$	1,497,458
Nonperforming		71			183			337			575			542			3,987			341			1,437			7,473
Total	$	49,085		$	74,515		$	47,697		$	36,746		$	45,383		$	61,915		$	1,181,334		$	8,256		$	1,504,931
Gross Charge-offs	$	85		$	980		$	650		$	68		$	314		$	394		$	3,694		$	727		$	6,912

	Term Loans																					Revolving Loans
December 31, 2022	Amortized Cost Basis by Origination Year																		Revolving			Converted to
($ in thousands)	2022			2021			2020			2019			2018			Prior			Loans			Term Loans			Total
Commercial Non-Real Estate:
Pass	$	2,600,656		$	1,450,689		$	679,355		$	569,842		$	267,025		$	763,122		$	3,193,769		$	116,659		$	9,641,117
Pass-Watch		68,307			38,949			31,841			11,757			8,237			49,577			66,339			9,836			284,843
Special Mention		30,276			13,625			2,443			4,406			322			1,654			25,184			2,070			79,980
Substandard		29,667			13,807			11,766			21,667			12,792			1,250			39,213			10,351			140,513
Doubtful		—			—			—			—			—			—			—			—			—
Total	$	2,728,906		$	1,517,070		$	725,405		$	607,672		$	288,376		$	815,603		$	3,324,505		$	138,916		$	10,146,453
Commercial Real Estate - Owner Occupied:
Pass	$	630,121		$	650,742		$	537,849		$	328,364		$	265,437		$	447,707		$	46,730		$	5,107		$	2,912,057
Pass-Watch		7,129			5,299			3,743			13,301			10,872			7,706			893			150			49,093
Special Mention		—			—			544			822			1,231			3,670			—			—			6,267
Substandard		19,899			547			6,715			7,663			7,543			21,465			1,000			809			65,641
Doubtful		—			—			—			—			—			—			—			—			—
Total	$	657,149		$	656,588		$	548,851		$	350,150		$	285,083		$	480,548		$	48,623		$	6,066		$	3,033,058
Commercial Real Estate - Income Producing:
Pass	$	894,522		$	795,378		$	660,235		$	420,435		$	232,145		$	317,446		$	113,487		$	7,000		$	3,440,648
Pass-Watch		1,027			18,070			58,256			20,865			12,066			836			467			—			111,587
Special Mention		235			—			708			2,325			166			376			—			—			3,810
Substandard		415			—			2,785			8			1,240			498			—			—			4,946
Doubtful		—			—			—			—			—			—			—			—			—
Total	$	896,199		$	813,448		$	721,984		$	443,633		$	245,617		$	319,156		$	113,954		$	7,000		$	3,560,991
Construction and Land Development:
Pass	$	663,735		$	711,731		$	148,579		$	9,198		$	15,360		$	10,854		$	128,842		$	2,457		$	1,690,756
Pass-Watch		8,233			1,944			643			559			199			450			69			—			12,097
Special Mention		—			—			—			196			—			—			—			—			196
Substandard		35			55			—			12			61			380			—			—			543
Doubtful		—			—			—			—			—			—			—			—			—
Total	$	672,003		$	713,730		$	149,222		$	9,965		$	15,620		$	11,684		$	128,911		$	2,457		$	1,703,592
Residential Mortgage:
Performing	$	631,339		$	694,104		$	518,705		$	192,431		$	107,675		$	918,918		$	3,147		$	—		$	3,066,319
Nonperforming		1,058			2,434			716			1,196			2,080			18,802			—			—			26,286
Total	$	632,397		$	696,538		$	519,421		$	193,627		$	109,755		$	937,720		$	3,147		$	—		$	3,092,605
Consumer Loans:
Performing	$	103,742		$	58,248		$	45,641		$	62,715		$	41,559		$	40,489		$	1,212,958		$	4,834		$	1,570,186
Nonperforming		193			198			228			758			381			3,341			459			1,603			7,161
Total	$	103,935		$	58,446		$	45,869		$	63,473		$	41,940		$	43,830		$	1,213,417		$	6,437		$	1,577,347

Total Commercial [Member]

Accounts Notes And Loans Receivable [Line Items]

Credit Quality Indicators by Segment and Portfolio Class

The following tables present the credit quality indicators by segment and portfolio class of loans at June 30, 2023 and December 31, 2022. The Company routinely assesses the ratings of loans in its portfolio through an established and comprehensive portfolio management process.

		June 30, 2023
($ in thousands)		Commercial non-real estate				Commercial real estate - owner- occupied				Total commercial and industrial				Commercial real estate - income producing				Construction and land development				Total commercial
Grade:
Pass		$	9,641,587			$	2,944,869			$	12,586,456			$	3,637,979			$	1,757,523			$	17,981,958
Pass-Watch			254,542				55,424				309,966				100,027				9,280				419,273
Special Mention			49,664				5,575				55,239				18,422				890				74,551
Substandard			168,139				52,961				221,100				6,000				559				227,659
Doubtful			—				—				—				—				—				—
Total		$	10,113,932			$	3,058,829			$	13,172,761			$	3,762,428			$	1,768,252			$	18,703,441

		December 31, 2022
($ in thousands)		Commercial non-real estate				Commercial real estate - owner- occupied				Total commercial and industrial				Commercial real estate - income producing				Construction and land development				Total commercial
Grade:
Pass		$	9,641,117			$	2,912,057			$	12,553,174			$	3,440,648			$	1,690,756			$	17,684,578
Pass-Watch			284,843				49,093				333,936				111,587				12,097				457,620
Special Mention			79,980				6,267				86,247				3,810				196				90,253
Substandard			140,513				65,641				206,154				4,946				543				211,643
Doubtful			—				—				—				—				—				—
Total		$	10,146,453			$	3,033,058			$	13,179,511			$	3,560,991			$	1,703,592			$	18,444,094

Residential Mortgage and Consumer [Member]

Accounts Notes And Loans Receivable [Line Items]

Credit Quality Indicators by Segment and Portfolio Class

		June 30, 2023												December 31, 2022
($ in thousands)		Residential mortgage				Consumer				Total				Residential mortgage				Consumer				Total
Performing		$	3,554,056			$	1,497,458			$	5,051,514			$	3,066,319			$	1,570,186			$	4,636,505
Nonperforming			27,458				7,473				34,931				26,286				7,161				33,447
Total		$	3,581,514			$	1,504,931			$	5,086,445			$	3,092,605			$	1,577,347			$	4,669,952

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