Allowance for Credit Losses (Tables)

12 Months Ended

Dec. 31, 2022

Allowance for Credit Losses

Schedule of activity in the allowance by class of loans and lease

	Year Ended December 31, 2022
	Commercial Lending								Residential Lending
	Commercial		Commercial								Home
	and		Real				Lease		Residential		Equity
(dollars in thousands)	Industrial		Estate		Construction		Financing		Mortgage		Line		Consumer		Total
Allowance for credit losses:
Balance at beginning of year	$	20,080	$	42,951	$	9,773	$	1,659	$	34,364	$	5,642	$	42,793	$	157,262
Charge-offs		(2,012)		(750)		—		—		(103)		(1,175)		(16,848)		(20,888)
Recoveries		897		14		—		60		418		713		7,545		9,647
Provision		(4,401)		1,595		(3,930)		(168)		496		3,116		1,171		(2,121)
Balance at end of year	$	14,564	$	43,810	$	5,843	$	1,551	$	35,175	$	8,296	$	34,661	$	143,900

	Year Ended December 31, 2021
	Commercial Lending								Residential Lending
	Commercial		Commercial								Home
	and		Real				Lease		Residential		Equity
(dollars in thousands)	Industrial		Estate		Construction		Financing		Mortgage		Line		Consumer		Total
Allowance for credit losses:
Balance at beginning of year	$	24,711	$	58,123	$	10,039	$	3,298	$	40,461	$	7,163	$	64,659	$	208,454
Charge-offs		(5,949)		(66)		—		—		(632)		(342)		(16,634)		(23,623)
Recoveries		867		39		266		—		261		117		9,600		11,150
Provision		451		(15,145)		(532)		(1,639)		(5,726)		(1,296)		(14,832)		(38,719)
Balance at end of year	$	20,080	$	42,951	$	9,773	$	1,659	$	34,364	$	5,642	$	42,793	$	157,262

	Year Ended December 31, 2020
	Commercial Lending								Residential Lending
	Commercial		Commercial								Home
	and		Real				Lease		Residential		Equity
(dollars in thousands)	Industrial		Estate		Construction		Financing		Mortgage		Line		Consumer		Unallocated		Total
Allowance for credit losses:
Balance at beginning of year	$	28,975	$	22,325	$	4,844	$	424	$	29,303	$	9,876	$	34,644	$	139	$	130,530
Adoption of ASU No. 2016-13		(16,105)		10,559		(1,803)		207		(2,793)		(4,731)		15,575		(139)		770
Charge-offs		(15,572)		(2,753)		(379)		—		(14)		(54)		(28,791)		—		(47,563)
Recoveries		5,005		615		200		—		216		167		10,499		—		16,702
Provision		22,408		27,377		7,177		2,667		13,749		1,905		32,732		—		108,015
Balance at end of year	$	24,711	$	58,123	$	10,039	$	3,298	$	40,461	$	7,163	$	64,659	$	—	$	208,454

Schedule of activity in the Liability for Credit Losses for Off-Balance-Sheet Financial Instruments

	Year Ended December 31, 2022
	Commercial Lending								Residential Lending
	Commercial		Commercial								Home
	and		Real				Lease		Residential		Equity
(dollars in thousands)	Industrial		Estate		Construction		Financing		Mortgage		Line		Consumer		Total
Reserve for unfunded commitments:
Balance at beginning of year	$	8,615	$	2,114	$	8,963	$	—	$	15	$	10,546	$	69	$	30,322
Provision		(804)		(110)		(1,493)		—		15		5,937		(32)		3,513
Balance at end of year	$	7,811	$	2,004	$	7,470	$	—	$	30	$	16,483	$	37	$	33,835

	Year Ended December 31, 2021
	Commercial Lending								Residential Lending
	Commercial		Commercial								Home
	and		Real				Lease		Residential		Equity
(dollars in thousands)	Industrial		Estate		Construction		Financing		Mortgage		Line		Consumer		Total
Reserve for unfunded commitments:
Balance at beginning of year	$	11,719	$	1,328	$	9,037	$	—	$	2	$	8,452	$	65	$	30,603
Provision		(3,104)		786		(74)		—		13		2,094		4		(281)
Balance at end of year	$	8,615	$	2,114	$	8,963	$	—	$	15	$	10,546	$	69	$	30,322

	Year Ended December 31, 2020
	Commercial Lending								Residential Lending
	Commercial		Commercial								Home
	and		Real				Lease		Residential		Equity
(dollars in thousands)	Industrial		Estate		Construction		Financing		Mortgage		Line		Consumer		Total
Reserve for unfunded commitments:
Balance at beginning of year	$	—	$	—	$	—	$	—	$	—	$	—	$	600	$	600
Adoption of ASU No. 2016-13		5,390		778		4,119		—		7		6,587		(581)		16,300
Provision		6,329		550		4,918		—		(5)		1,865		46		13,703
Balance at end of year	$	11,719	$	1,328	$	9,037	$	—	$	2	$	8,452	$	65	$	30,603

Schedule of amortized cost basis by year of origination and credit quality indicator

The amortized cost basis by year of origination and credit quality indicator of the Company's loans and leases as of December 31, 2022 was as follows:

															Revolving
															Loans
															Converted
	Term Loans												Revolving		to Term
	Amortized Cost Basis by Origination Year												Loans		Loans
													Amortized		Amortized
(dollars in thousands)	2022		2021		2020		2019		2018		Prior		Cost Basis		Cost Basis		Total
Commercial Lending
Commercial and Industrial
Risk rating:
Pass	$	359,881	$	422,567	$	54,656	$	170,222	$	51,476	$	137,257	$	894,384	$	15,715	$	2,106,158
Special Mention		2,059		240		1,371		2,643		184		1,431		22,897		378		31,203
Substandard		625		289		1,117		1,092		668		885		14,733		65		19,474
Other (1)		17,679		7,721		4,329		3,965		1,881		1,167		42,320		—		79,062
Total Commercial and Industrial		380,244		430,817		61,473		177,922		54,209		140,740		974,334		16,158		2,235,897
Commercial Real Estate
Risk rating:
Pass		889,583		695,882		319,838		565,587		395,474		1,173,163		48,081		—		4,087,608
Special Mention		170		—		555		14,878		512		11,398		675		—		28,188
Substandard		—		—		173		—		1,704		14,485		—		—		16,362
Other (1)		—		—		—		—		—		151		—		—		151
Total Commercial Real Estate		889,753		695,882		320,566		580,465		397,690		1,199,197		48,756		—		4,132,309
Construction
Risk rating:
Pass		124,464		261,536		96,423		97,000		88,973		84,704		25,957		—		779,057
Special Mention		—		—		—		221		—		—		—		—		221
Substandard		—		—		—		—		21		490		—		—		511
Other (1)		29,694		21,339		4,686		2,201		3,784		2,196		954		—		64,854
Total Construction		154,158		282,875		101,109		99,422		92,778		87,390		26,911		—		844,643
Lease Financing
Risk rating:
Pass		113,563		24,052		43,497		37,502		6,004		67,687		—		—		292,305
Special Mention		—		411		2,498		1,299		—		—		—		—		4,208
Substandard		—		—		197		12		11		1,357		—		—		1,577
Total Lease Financing		113,563		24,463		46,192		38,813		6,015		69,044		—		—		298,090
Total Commercial Lending	$	1,537,718	$	1,434,037	$	529,340	$	896,622	$	550,692	$	1,496,371	$	1,050,001	$	16,158	$	7,510,939

(continued)

															Revolving
															Loans
															Converted
	Term Loans												Revolving		to Term
	Amortized Cost Basis by Origination Year												Loans		Loans
(continued)													Amortized		Amortized
(dollars in thousands)	2022		2021		2020		2019		2018		Prior		Cost Basis		Cost Basis		Total
Residential Lending
Residential Mortgage
FICO:
740 and greater	$	557,636	$	1,064,444	$	560,463	$	245,241	$	165,258	$	920,100	$	—	$	—	$	3,513,142
680 - 739		73,929		112,672		82,416		40,355		22,126		130,508		—		—		462,006
620 - 679		12,320		13,804		9,881		3,649		3,054		35,441		—		—		78,149
550 - 619		2,455		2,246		1,791		263		601		6,955		—		—		14,311
Less than 550		—		1,321		367		—		966		5,304		—		—		7,958
No Score (3)		22,289		14,671		6,820		10,599		15,921		47,245		—		—		117,545
Other (2)		18,970		18,211		15,287		9,201		9,124		29,128		9,202		554		109,677
Total Residential Mortgage		687,599		1,227,369		677,025		309,308		217,050		1,174,681		9,202		554		4,302,788
Home Equity Line
FICO:
740 and greater		—		—		—		—		—		—		817,123		2,059		819,182
680 - 739		—		—		—		—		—		—		171,117		2,714		173,831
620 - 679		—		—		—		—		—		—		45,368		2,100		47,468
550 - 619		—		—		—		—		—		—		7,485		1,029		8,514
Less than 550		—		—		—		—		—		—		1,151		481		1,632
No Score (3)		—		—		—		—		—		—		4,724		—		4,724
Total Home Equity Line		—		—		—		—		—		—		1,046,968		8,383		1,055,351
Total Residential Lending		687,599		1,227,369		677,025		309,308		217,050		1,174,681		1,056,170		8,937		5,358,139
Consumer Lending
FICO:
740 and greater		200,887		111,047		53,534		43,912		24,951		8,432		125,126		185		568,074
680 - 739		99,787		67,140		37,260		31,751		15,874		7,665		72,101		514		332,092
620 - 679		25,949		29,587		14,226		16,872		9,672		6,488		31,854		937		135,585
550 - 619		3,017		5,475		5,226		8,056		5,396		3,924		11,269		854		43,217
Less than 550		656		1,351		2,286		3,779		1,869		1,593		3,541		443		15,518
No Score (3)		3,205		258		—		51		24		29		38,805		227		42,599
Other (2)		1,615		4,082		353		1,368		—		—		78,430		1		85,849
Total Consumer Lending		335,116		218,940		112,885		105,789		57,786		28,131		361,126		3,161		1,222,934
Total Loans and Leases	$	2,560,433	$	2,880,346	$	1,319,250	$	1,311,719	$	825,528	$	2,699,183	$	2,467,297	$	28,256	$	14,092,012

(1) Other credit quality indicators used for monitoring purposes are primarily FICO scores. The majority of the loans in this population were originated to borrowers with a prime FICO score.

(2) Other credit quality indicators used for monitoring purposes are primarily internal risk ratings. The majority of the loans in this population were graded with a “Pass” rating.

(3) No FICO scores are primarily related to loans and leases extended to non-residents. Loans and leases of this nature are primarily secured by collateral and/or are closely monitored for performance.

The amortized cost basis by year of origination and credit quality indicator of the Company's loans and leases as of December 31, 2021 was as follows:

															Revolving
															Loans
															Converted
	Term Loans												Revolving		to Term
	Amortized Cost Basis by Origination Year												Loans		Loans
													Amortized		Amortized
(dollars in thousands)	2021		2020		2019		2018		2017		Prior		Cost Basis		Cost Basis		Total
Commercial Lending
Commercial and Industrial
Risk rating:
Pass	$	623,098	$	129,665	$	223,388	$	88,409	$	29,380	$	168,591	$	644,947	$	40,193	$	1,947,671
Special Mention		397		4,382		4,213		12,552		974		5,313		4,804		986		33,621
Substandard		354		1,380		1,951		1,285		60		3,551		17,893		1,043		27,517
Other (1)		13,277		7,070		7,741		4,453		1,995		370		43,384		—		78,290
Total Commercial and Industrial		637,126		142,497		237,293		106,699		32,409		177,825		711,028		42,222		2,087,099
Commercial Real Estate
Risk rating:
Pass		693,370		338,140		533,887		487,739		415,186		940,732		78,479		14,891		3,502,424
Special Mention		—		—		48,499		7,470		25,513		30,255		7,600		—		119,337
Substandard		—		—		—		1,776		164		15,303		459		—		17,702
Other (1)		—		—		—		—		—		160		—		—		160
Total Commercial Real Estate		693,370		338,140		582,386		496,985		440,863		986,450		86,538		14,891		3,639,623
Construction
Risk rating:
Pass		154,558		107,767		210,314		155,311		62,770		48,021		22,859		—		761,600
Special Mention		—		—		244		707		—		356		—		—		1,307
Substandard		—		—		—		363		—		839		—		—		1,202
Other (1)		26,835		8,875		4,317		4,308		2,684		2,048		793		—		49,860
Total Construction		181,393		116,642		214,875		160,689		65,454		51,264		23,652		—		813,969
Lease Financing
Risk rating:
Pass		33,980		60,650		48,236		9,449		15,009		57,130		—		—		224,454
Special Mention		501		2,702		1,506		311		153		—		—		—		5,173
Substandard		—		270		140		16		871		470		—		—		1,767
Total Lease Financing		34,481		63,622		49,882		9,776		16,033		57,600		—		—		231,394
Total Commercial Lending	$	1,546,370	$	660,901	$	1,084,436	$	774,149	$	554,759	$	1,273,139	$	821,218	$	57,113	$	6,772,085

															Revolving
															Loans
															Converted
	Term Loans												Revolving		to Term
	Amortized Cost Basis by Origination Year												Loans		Loans
(continued)													Amortized		Amortized
(dollars in thousands)	2021		2020		2019		2018		2017		Prior		Cost Basis		Cost Basis		Total
Residential Lending
Residential Mortgage
FICO:
740 and greater	$	1,101,958	$	635,061	$	286,993	$	198,622	$	251,906	$	829,175	$	—	$	—	$	3,303,715
680 - 739		140,997		81,590		45,163		27,315		32,855		125,906		—		—		453,826
620 - 679		15,781		11,943		5,268		10,149		9,069		37,404		—		—		89,614
550 - 619		1,735		873		698		533		2,033		7,475		—		—		13,347
Less than 550		—		—		—		345		2,603		2,838		—		—		5,786
No Score (3)		18,882		7,938		15,051		18,107		17,333		42,185		—		—		119,496
Other (2)		25,625		16,263		10,242		11,297		16,242		17,152		44		718		97,583
Total Residential Mortgage		1,304,978		753,668		363,415		266,368		332,041		1,062,135		44		718		4,083,367
Home Equity Line
FICO:
740 and greater		—		—		—		—		—		—		671,566		1,873		673,439
680 - 739		—		—		—		—		—		—		141,889		3,968		145,857
620 - 679		—		—		—		—		—		—		37,815		2,500		40,315
550 - 619		—		—		—		—		—		—		9,090		948		10,038
Less than 550		—		—		—		—		—		—		2,574		68		2,642
No Score (3)		—		—		—		—		—		—		4,317		—		4,317
Total Home Equity Line		—		—		—		—		—		—		867,251		9,357		876,608
Total Residential Lending		1,304,978		753,668		363,415		266,368		332,041		1,062,135		867,295		10,075		4,959,975
Consumer Lending
FICO:
740 and greater		155,929		83,337		79,617		56,707		24,525		8,067		117,843		209		526,234
680 - 739		93,214		56,327		55,126		34,049		17,527		6,315		69,366		707		332,631
620 - 679		41,671		21,986		28,491		19,403		12,952		5,324		31,165		1,175		162,167
550 - 619		7,836		8,265		13,265		10,497		7,469		3,244		10,359		1,089		62,024
Less than 550		2,272		3,867		6,646		3,484		2,739		1,175		3,195		536		23,914
No Score (3)		481		19		56		40		65		2		35,414		320		36,397
Other (2)		4,737		365		1,712		17		2,182		31		77,528		—		86,572
Total Consumer Lending		306,140		174,166		184,913		124,197		67,459		24,158		344,870		4,036		1,229,939
Total Loans and Leases	$	3,157,488	$	1,588,735	$	1,632,764	$	1,164,714	$	954,259	$	2,359,432	$	2,033,383	$	71,224	$	12,961,999

(1) Other credit quality indicators used for monitoring purposes are primarily FICO scores. The majority of the loans in this population were originated to borrowers with a prime FICO score.

(2) Other credit quality indicators used for monitoring purposes are primarily internal risk ratings. The majority of the loans in this population were graded with a “Pass” rating.

(3) No FICO scores are primarily related to loans and leases extended to non-residents. Loans and leases of this nature are primarily secured by collateral and/or are closely monitored for performance.

Schedule of revolving loans that were converted to term loans

	Year Ended
(dollars in thousands)	December 31, 2022
Commercial and industrial	$	480
Home equity line		2,189
Consumer		1,323
Total Revolving Loans Converted to Term Loans During the Year	$	3,992

	Year Ended
(dollars in thousands)	December 31, 2021
Commercial and industrial	$	1,153
Commercial real estate		14,891
Residential mortgage		577
Home equity line		3,656
Consumer		1,574
Total Revolving Loans Converted to Term Loans During the Year	$	21,851

Schedule of aging analyses of past due loans and leases

	December 31, 2022
	Past Due												Loans and
					Greater								Leases Past
					Than or								Due 90 Days
	30-59		60-89		Equal to								or More and
	Days		Days		90 Days		Total				Total Loans		Still Accruing
(dollars in thousands)	Past Due		Past Due		Past Due		Past Due		Current		and Leases		Interest
Commercial and industrial	$	2,682	$	769	$	1,441	$	4,892	$	2,231,005	$	2,235,897	$	291
Commercial real estate		4,505		—		727		5,232		4,127,077		4,132,309		—
Construction		109		—		—		109		844,534		844,643		—
Lease financing		—		—		—		—		298,090		298,090		—
Residential mortgage		3,681		1,983		2,572		8,236		4,294,552		4,302,788		58
Home equity line		5,161		1,381		2,072		8,614		1,046,737		1,055,351		—
Consumer		29,927		6,801		2,886		39,614		1,183,320		1,222,934		2,885
Total	$	46,065	$	10,934	$	9,698	$	66,697	$	14,025,315	$	14,092,012	$	3,234

	December 31, 2021
	Past Due												Loans and
					Greater								Leases Past
					Than or								Due 90 Days
	30-59		60-89		Equal to								or More and
	Days		Days		90 Days		Total				Total Loans		Still Accruing
(dollars in thousands)	Past Due		Past Due		Past Due		Past Due		Current		and Leases		Interest
Commercial and industrial	$	1,195	$	1,195	$	1,318	$	3,708	$	2,083,391	$	2,087,099	$	740
Commercial real estate		631		—		—		631		3,638,992		3,639,623		—
Construction		162		—		—		162		813,807		813,969		—
Lease financing		—		—		—		—		231,394		231,394		—
Residential mortgage		3,030		1,002		5,617		9,649		4,073,718		4,083,367		987
Home equity line		1,538		538		3,681		5,757		870,851		876,608		3,681
Consumer		16,534		3,366		1,800		21,700		1,208,239		1,229,939		1,800
Total	$	23,090	$	6,101	$	12,416	$	41,607	$	12,920,392	$	12,961,999	$	7,208

Schedule of amortized cost basis of loans and leases on nonaccrual status

	December 31, 2022
	Nonaccrual
	Loans
	and Leases
	With No		Nonaccrual
	Allowance		Loans
(dollars in thousands)	for Credit Losses		and Leases
Commercial and industrial	$	665	$	1,215
Commercial real estate		727		727
Residential mortgage		1,560		6,166
Home equity line		596		3,797
Total Nonaccrual Loans and Leases	$	3,548	$	11,905

	December 31, 2021
	Nonaccrual
	Loans
	and Leases
	With No		Nonaccrual
	Allowance		Loans
(dollars in thousands)	for Credit Losses		and Leases
Commercial and industrial	$	—	$	718
Commercial real estate		727		727
Residential mortgage		1,192		5,637
Total Nonaccrual Loans and Leases	$	1,919	$	7,082

Schedule of information related to loans modified in a TDR

	Year Ended December 31, 2022
	Number of	Recorded		Related
(dollars in thousands)	Contracts(1)	Investment(2)		ACL
Commercial and industrial	5	$	205	$	17
Residential mortgage	1		247		31
Consumer	258		2,173		443
Total	264	$	2,625	$	491

	Year Ended December 31, 2021
	Number of	Recorded		Related
(dollars in thousands)	Contracts(1)	Investment(2)		ACL
Commercial and industrial	11	$	1,481	$	124
Commercial real estate	1		346		78
Construction	12		689		69
Residential mortgage	13		5,539		207
Consumer	1,652		15,710		2,127
Total	1,689	$	23,765	$	2,605

	Year Ended December 31, 2020
	Number of	Recorded		Related
(dollars in thousands)	Contracts(1)	Investment(2)		ACL
Commercial and industrial	1	$	500	$	30
Commercial real estate	3		6,470		470
Residential mortgage	1		825		90
Total	5	$	7,795	$	590

(1) The number of contracts does not include TDRs that have been fully paid off, charged off or foreclosed upon by the end of the year.

(2) The recorded investment balances reflect all partial paydowns and charge-offs since the modification date and do not include TDRs that have been fully paid off, charged off or foreclosed upon by the end of the year.

Schedule of TDRs that defaulted in period within 12 months of their permanent modification date

	Year Ended December 31,
	2022			2021			2020
	Number of	Recorded		Number of	Recorded		Number of	Recorded
(dollars in thousands)	Contracts(1)	Investment(2)		Contracts(1)	Investment(2)		Contracts(1)	Investment(2)
Commercial and industrial	2	$	541	3	$	569	1	$	500
Construction	—		—	1		450	—		—
Commercial real estate	—		—	1		356	—		—
Residential mortgage	—		—	4		1,012	—		—
Consumer	213		2,623	405		5,272	—		—
Total	215	$	3,164	414	$	7,659	1	$	500

(1) The number of contracts does not include TDRs that have been fully paid off, charged off or foreclosed upon by the end of the year.

(2) The recorded investment balances reflect all partial paydowns and charge-offs since the modification date and do not include TDRs that have been fully paid off, charged off or foreclosed upon by the end of the year.