Accounts Notes And Loans Receivable [Line Items]

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, 2022 and 2021, 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, 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


				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, 2021
Allowance for credit losses
Allowance for loan losses:
Beginning balance	$	149,693		$	69,134		$	218,827		$	109,474		$	26,462		$	48,842		$	46,572		$	450,177
Charge-offs		(28,932	)		(1,682	)		(30,614	)		(231	)		(256	)		(207	)		(6,618	)		(37,926	)
Recoveries		4,187			287			4,474			—			1,164			437			3,099			9,174
Net provision for loan losses		(12,425	)		(5,967	)		(18,392	)		14,537			(642	)		(12,607	)		(4,653	)		(21,757	)
Ending balance - allowance for loan losses	$	112,523		$	61,772		$	174,295		$	123,780		$	26,728		$	36,465		$	38,400		$	399,668
Reserve for unfunded lending commitments:
Beginning balance	$	4,529		$	381		$	4,910		$	1,099		$	22,694		$	19		$	1,185		$	29,907
Provision for losses on unfunded commitments		1,174			(73	)		1,101			244			(1,470	)		(6	)		(252	)		(383	)
Ending balance - reserve for unfunded lending commitments		5,703			308			6,011			1,343			21,224			13			933			29,524
Total allowance for credit losses	$	118,226		$	62,080		$	180,306		$	125,123		$	47,952		$	36,478		$	39,333		$	429,192

Allowance for loan losses:
Individually evaluated	$	2,675		$	669		$	3,344		$	21		$	21		$	437		$	204		$	4,027
Collectively evaluated		109,848			61,103			170,951			123,759			26,707			36,028			38,196			395,641
Allowance for loan losses	$	112,523		$	61,772		$	174,295		$	123,780		$	26,728		$	36,465		$	38,400		$	399,668
Reserve for unfunded lending commitments:
Individually evaluated	$	241		$	—		$	241		$	—		$	—		$	—		$	—		$	241
Collectively evaluated		5,462			308			5,770			1,343			21,224			13			933			29,283
Reserve for unfunded lending commitments:	$	5,703		$	308		$	6,011		$	1,343		$	21,224		$	13		$	933		$	29,524
Total allowance for credit losses	$	118,226		$	62,080		$	180,306		$	125,123		$	47,952		$	36,478		$	39,333		$	429,192
Loans:
Individually evaluated	$	13,642		$	7,079		$	20,721		$	4,018		$	129		$	6,347		$	2,663		$	33,878
Collectively evaluated		9,519,068			2,802,789			12,321,857			3,415,010			1,294,907			2,406,112			1,676,766			21,114,652
Total loans	$	9,532,710		$	2,809,868		$	12,342,578		$	3,419,028		$	1,295,036		$	2,412,459		$	1,679,429		$	21,148,530

Troubled Debt Restructurings Modified by Portfolio Class

The tables below provide detail by portfolio class TDRs that were modified during the three and six months ended June 30, 2022 and 2021.


	Three Months Ended
($ in thousands)	June 30, 2022						June 30, 2021
Troubled Debt Restructurings:	Number of Contracts		Pre- Modification Outstanding Recorded Investment		Post- Modification Outstanding Recorded Investment		Number of Contracts		Pre- Modification Outstanding Recorded Investment		Post- Modification Outstanding Recorded Investment
Commercial non-real estate		—	$	—	$	—		—	$	—	$	—
Commercial real estate - owner occupied		—		—		—		—		—		—
Total commercial and industrial		—		—		—		—		—		—
Commercial real estate - income producing		—		—		—		—		—		—
Construction and land development		—		—		—		—		—		—
Residential mortgages		1		38		38		1		109		132
Consumer		1		3		3		3		32		32
Total loans		2	$	41	$	41		4	$	141	$	164


	Six Months Ended
($ in thousands)	June 30, 2022						June 30, 2021
			Pre- Modification		Post- Modification				Pre- Modification		Post- Modification
	Number		Outstanding		Outstanding		Number		Outstanding		Outstanding
	of		Recorded		Recorded		of		Recorded		Recorded
Troubled Debt Restructurings:	Contracts		Investment		Investment		Contracts		Investment		Investment
Commercial non-real estate		—	$	—	$	—		3	$	6,935	$	6,935
Commercial real estate - owner occupied		—		—		—		—		—		—
Total commercial and industrial		—		—		—		3		6,935		6,935
Commercial real estate - income producing		—		—		—		—		—		—
Construction and land development		—		—		—		—		—		—
Residential mortgages		3		148		153		2		319		342
Consumer		3		76		76		4		86		86
Total loans		6	$	224	$	229		9	$	7,340	$	7,363

Credit Quality Indicators by Segment and Portfolio Class

The following tables present credit quality disclosures of amortized cost by segment and vintage for term loans and by revolving and revolving converted to amortizing at June 30, 2022 and December 31, 2021. The Company defines vintage as the later of origination, renewal or restructure date.


	Term Loans
	Amortized Cost Basis by Origination Year
June 30, 2022		2022		2021		2020		2019		2018		Prior		Revolving Loans		Revolving Loans Converted to Term Loans		Total
(in thousands)
Commercial Loans:
Pass		$	2,647,233	$	4,097,352	$	2,496,832	$	1,688,087	$	930,288	$	1,882,405	$	3,151,983	$	132,146	$	17,026,326
Pass-Watch			32,871		39,597		41,917		37,494		38,875		62,750		92,695		5,983		352,182
Special Mention			29,654		11,833		8,346		4,411		10,083		15,097		18,722		1,563		99,709
Substandard			27,016		19,000		13,778		39,177		17,094		29,919		30,186		5,149		181,319
Doubtful			—		—		—		—		—		—		—		—		—
Total Commercial Loans		$	2,736,774	$	4,167,782	$	2,560,873	$	1,769,169	$	996,340	$	1,990,171	$	3,293,586	$	144,841	$	17,659,536
Residential Mortgage and Consumer Loans:
Performing		$	350,898	$	601,109	$	518,412	$	288,601	$	173,446	$	1,051,413	$	1,168,323	$	4,035	$	4,156,237
Nonperforming			70		1,453		520		2,069		2,652		22,003		835		693	$	30,295
Total Consumer Loans		$	350,968	$	602,562	$	518,932	$	290,670	$	176,098	$	1,073,416	$	1,169,158	$	4,728	$	4,186,532


	Term Loans
	Amortized Cost Basis by Origination Year
December 31, 2021		2021		2020		2019		2018		2017		Prior		Revolving Loans		Revolving Loans Converted to Term Loans		Total
(in thousands)
Commercial Loans:
Pass		$	4,946,459	$	3,008,160	$	2,035,849	$	1,212,306	$	937,639	$	1,296,382	$	3,002,064	$	80,535	$	16,519,394
Pass-Watch			68,421		19,467		31,598		45,846		27,188		69,310		52,850		5,714		320,394
Special Mention			17,536		2,683		10,296		12,410		10,669		3,656		9,603		6,243		73,096
Substandard			43,895		43,494		36,763		14,664		28,337		16,125		20,358		10,482		214,118
Doubtful			—		—		—		—		—		—		—		—		—
Total Commercial Loans		$	5,076,311	$	3,073,804	$	2,114,506	$	1,285,226	$	1,003,833	$	1,385,473	$	3,084,875	$	102,974	$	17,127,002
Residential Mortgage and Consumer Loans:
Performing		$	580,813	$	467,497	$	355,833	$	223,494	$	320,344	$	892,361	$	1,120,461	$	5,995	$	3,966,798
Nonperforming			565		951		2,018		4,465		4,719		24,365		1,432		1,967		40,482
Total Consumer Loans		$	581,378	$	468,448	$	357,851	$	227,959	$	325,063	$	916,726	$	1,121,893	$	7,962	$	4,007,280

Accounts Notes And Loans Receivable [Line Items]

Credit Quality Indicators by Segment and Portfolio Class


	June 30, 2022						December 31, 2021
(in thousands)	Residential mortgage		Consumer		Total		Residential mortgage		Consumer		Total
Performing	$	2,594,302	$	1,561,935	$	4,156,237	$	2,396,282	$	1,570,516	$	3,966,798
Nonperforming		21,505		8,790		30,295		27,608		12,874		40,482
Total	$	2,615,807	$	1,570,725	$	4,186,532	$	2,423,890	$	1,583,390	$	4,007,280