Loans, Allowance for Credit Losses and Credit Quality (Tables)

9 Months Ended

Sep. 30, 2025

Financing Receivable, Allowance for Credit Loss [Table Text Block]

The following table summarizes the change in allowance for credit losses by loan category, and bifurcates the amount of loans allocated to each loan category for the period indicated:


	Three Months Ended September 30, 2025
	(Dollars in thousands)
	Commercial and Industrial		Commercial Real Estate		Commercial Construction		Residential Real Estate		Home Equity		Other Consumer		Total
Allowance for credit losses
Beginning balance	$	38,451	$	60,927	$	8,183	$	25,414	$	10,911	$	887	$	144,773


Charge-offs	(1,196)		(40)		—		—		—		(1,434)		(2,670)
Recoveries	18		19		—		—		12		785		834
Initial reserve on PCD loans	4,016		2,796		1,739		297		118		54		9,020
Provision for credit losses	13,193		13,381		6,011		4,179		1,146		609		38,519
Ending balance (1)	$	54,482	$	77,083	$	15,933	$	29,890	$	12,187	$	901	$	190,476

	Three Months Ended September 30, 2024
	(Dollars in thousands)
	Commercial and Industrial		Commercial Real Estate		Commercial Construction		Residential Real Estate		Home Equity		Other Consumer		Total
Allowance for credit losses
Beginning balance	$	38,393	$	67,051	$	7,804	$	24,836	$	11,755	$	1,020	$	150,859
Charge-offs	(6,049)		—		—		—		(38)		(919)		(7,006)
Recoveries	6		—		—		—		14		323		343
Provision for (release of) credit losses	(145)		20,408		(278)		(333)		(570)		418		19,500
Ending balance (1)	$	32,205	$	87,459	$	7,526	$	24,503	$	11,161	$	842	$	163,696

	Nine Months Ended September 30, 2025
	(Dollars in thousands)
	Commercial and Industrial		Commercial Real Estate		Commercial Construction		Residential Real Estate		Home Equity		Other Consumer		Total
Allowance for credit losses
Beginning balance	$	30,799	$	93,718	$	8,166	$	25,238	$	11,007	$	1,056	$	169,984
Charge-offs	(4,208)		(43,384)		—		—		(96)		(3,348)		(51,036)
Recoveries	85		20		—		—		79		1,605		1,789
Initial reserve on PCD loans	4,016		2,796		1,739		297		118		54		9,020
Provision for credit losses	23,790		23,933		6,028		4,355		1,079		1,534		60,719
Ending balance (1)	$	54,482	$	77,083	$	15,933	$	29,890	$	12,187	$	901	$	190,476

	Nine Months Ended September 30, 2024
	(Dollars in thousands)
	Commercial and Industrial		Commercial Real Estate		Commercial Construction		Residential Real Estate		Home Equity		Other Consumer		Total
Allowance for credit losses
Beginning balance	$	36,049	$	61,305	$	7,683	$	23,637	$	12,797	$	751	$	142,222


Charge-offs	(6,218)		—		—		—		(49)		(2,428)		(8,695)
Recoveries	144		—		—		—		295		980		1,419
Provision for (release of) credit losses	2,230		26,154		(157)		866		(1,882)		1,539		28,750
Ending balance (1)	$	32,205	$	87,459	$	7,526	$	24,503	$	11,161	$	842	$	163,696

(1)Balances of accrued interest receivable excluded from amortized cost and the calculation of allowance for credit losses amounted to $70.8 million and $55.3 million as of September 30, 2025 and September 30, 2024, respectively.

Financing Receivable Credit Quality Indicators [Table Text Block]

The following tables detail the amortized cost balances of the Company's loan portfolios, presented by credit quality indicator and origination year as of September 30, 2025, and gross charge-offs for the nine month period then ended:


	September 30, 2025
	2025		2024		2023		2022		2021		Prior		Revolving Loans		Revolving converted to Term(1)		Total(2)
	(Dollars in thousands)
Commercial and industrial
Pass	$	758,897	$	716,432	$	442,395	$	407,490	$	304,231	$	903,902	$	829,422	$	2,465	$	4,365,234
Special mention	19,897		5,887		9,021		1,971		2,364		10,500		35,924		—		85,564
Substandard	28,411		4,195		4,098		7,786		593		4,064		28,297		17		77,461
Doubtful	—		—		—		—		—		23		4,012		—		4,035
Loss	—		—		—		—		—		—		—		—		—
Total commercial and industrial	$	807,205	$	726,514	$	455,514	$	417,247	$	307,188	$	918,489	$	897,655	$	2,482	$	4,532,294
Current-period gross write-offs	$	—	$	21	$	25	$	97	$	900	$	173	$	2,992	$	—	$	4,208



Commercial real estate
Pass	$	793,654	$	866,175	$	984,931	$	1,148,358	$	1,209,357	$	2,842,126	$	140,710	$	4,685	$	7,989,996
Special mention	42,916		14,219		495		10,314		3,263		95,360		197		—		166,764
Substandard	—		27,158		1,964		13,669		12,046		6,703		—		—		61,540
Doubtful	22,275		—		—		—		—		883		—		—		23,158
Loss	—		—		—		—		—		—		—		—		—
Total commercial real estate	$	858,845	$	907,552	$	987,390	$	1,172,341	$	1,224,666	$	2,945,072	$	140,907	$	4,685	$	8,241,458
Current-period gross write-offs	$	8,126	$	—	$	26,862	$	—	$	7,061	$	1,335	$	—	$	—	$	43,384



Commercial construction
Pass	$	254,285	$	472,964	$	306,778	$	121,023	$	94,662	$	42,349	$	55,429	$	—	$	1,347,490
Special mention	16,321		8,978		3,674		—		—		—		3		—		28,976
Substandard	10,146		25,780		848		15,943		—		7,851		—		—		60,568
Doubtful	—		—		—		2,842		—		—		—		—		2,842
Loss	—		—		—		—		—		—		—		—		—
Total commercial construction	$	280,752	$	507,722	$	311,300	$	139,808	$	94,662	$	50,200	$	55,432	$	—	$	1,439,876
Current-period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—














Residential real estate
Pass	$	225,596	$	262,376	$	518,335	$	654,259	$	413,409	$	835,365	$	—	$	—	$	2,909,340
Default	—		—		770		749		607		5,635		—		—		7,761

Total residential real estate	$	225,596	$	262,376	$	519,105	$	655,008	$	414,016	$	841,000	$	—	$	—	$	2,917,101
Current-period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—



Home equity
Pass	$	8,413	$	14,463	$	19,958	$	31,033	$	46,077	$	155,913	$	988,741	$	17,224	$	1,281,822
Default	—		—		—		—		301		428		1,588		—		2,317

Total home equity	$	8,413	$	14,463	$	19,958	$	31,033	$	46,378	$	156,341	$	990,329	$	17,224	$	1,284,139
Current-period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	96	$	—	$	96



Other consumer(3)
Pass	$	1,993	$	1,830	$	1,617	$	926	$	927	$	1,221	$	29,029	$	—	$	37,543
Default	—		15		—		11		3		—		3		—		32

Total other consumer	$	1,993	$	1,845	$	1,617	$	937	$	930	$	1,221	$	29,032	$	—	$	37,575
Current-period gross write-offs	$	3,305	$	22	$	10	$	—	$	—	$	—	$	11	$	—	$	3,348

Total	$	2,182,804	$	2,420,472	$	2,294,884	$	2,416,374	$	2,087,840	$	4,912,323	$	2,113,355	$	24,391	$	18,452,443
Total current-period gross write-offs	$	11,431	$	43	$	26,897	$	97	$	7,961	$	1,508	$	3,099	$	—	$	51,036

The following tables detail the amortized cost balances of the Company's loan portfolios, presented by credit quality indicator and origination year as of December 31, 2024, and gross charge-offs for the year then ended:


	December 31, 2024
	2024		2023		2022		2021		2020		Prior		Revolving Loans		Revolving converted to Term(1)		Total(2)
	(Dollars in thousands)
Commercial and industrial
Pass	$	729,519	$	330,362	$	378,428	$	261,526	$	180,076	$	525,457	$	673,733	$	1,118	$	3,080,219
Special mention	18,600		554		2,410		10,724		964		2,676		41,534		—		77,462
Substandard	17,132		4,454		5,339		27,642		319		351		21,885		—		77,122
Doubtful	—		—		—		—		—		—		11,652		—		11,652
Loss	—		—		—		—		—		—		—		—		—
Total commercial and industrial	$	765,251	$	335,370	$	386,177	$	299,892	$	181,359	$	528,484	$	748,804	$	1,118	$	3,246,455
Current-period gross write-offs	$	48	$	39	$	35	$	54	$	—	$	—	$	6,417	$	—	$	6,593

Commercial real estate
Pass	$	792,092	$	883,190	$	924,422	$	1,050,867	$	1,006,088	$	1,828,952	$	101,389	$	241	$	6,587,241
Special mention	16,243		6,037		—		760		—		60,184		198		—		83,422
Substandard	53,532		13,017		12,967		10,145		916		5,836		—		—		96,413
Doubtful	—		53,752		—		11,660		—		7,217		—		—		72,629
Loss	—		—		—		—		—		—		—		—		—
Total commercial real estate	$	861,867	$	955,996	$	937,389	$	1,073,432	$	1,007,004	$	1,902,189	$	101,587	$	241	$	6,839,705
Current-period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Commercial construction
Pass	$	288,979	$	173,856	$	130,245	$	62,972	$	—	$	24,583	$	32,077	$	1,756	$	714,468
Special mention	—		2,316		15,622		9,078		—		—		—		—		27,016
Substandard	31,549		—		9,045		—		—		—		—		—		40,594
Doubtful	—		—		—		—		—		—		—		—		—
Loss	—		—		—		—		—		—		—		—		—
Total commercial construction	$	320,528	$	176,172	$	154,912	$	72,050	$	—	$	24,583	$	32,077	$	1,756	$	782,078
Current-period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Residential real estate
Pass	$	197,985	$	472,546	$	607,105	$	381,182	$	173,047	$	625,111	$	—	$	—	$	2,456,976
Default	—		209		636		373		742		1,664		—		—		3,624

Total residential real estate	$	197,985	$	472,755	$	607,741	$	381,555	$	173,789	$	626,775	$	—	$	—	$	2,460,600
Current-period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Home equity
Pass	$	14,888	$	24,020	$	32,577	$	49,290	$	45,322	$	127,029	$	829,688	$	16,229	$	1,139,043
Default	—		—		—		—		—		226		803		96		1,125

Total home equity	$	14,888	$	24,020	$	32,577	$	49,290	$	45,322	$	127,255	$	830,491	$	16,325	$	1,140,168
Current-period gross write-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	241	$	139	$	380

Other consumer(3)
Pass	$	651	$	445	$	151	$	599	$	211	$	1,158	$	36,157	$	—	$	39,372
Default	—		—		—		—		—		—		—		—		—

Total other consumer	$	651	$	445	$	151	$	599	$	211	$	1,158	$	36,157	$	—	$	39,372
Current-period gross write-offs	$	3,339	$	—	$	—	$	—	$	—	$	19	$	16	$	—	$	3,374

Total	$	2,161,170	$	1,964,758	$	2,118,947	$	1,876,818	$	1,407,685	$	3,210,444	$	1,749,116	$	19,440	$	14,508,378
Total current-period gross write-offs	$	3,387	$	39	$	35	$	54	$	—	$	19	$	6,674	$	139	$	10,347

(1)Amounts presented represent the amortized cost as of September 30, 2025 and December 31, 2024 of revolving loans that were converted to term loans during the nine and twelve months then ended, respectively.

(2)Loan origination dates in the tables above reflect the original origination date, or the date of a material modification of a previously originated loan.

(3)Other consumer portfolio is inclusive of deposit account overdrafts recorded as loan balances and the associated gross write-offs.

Foreclosed Residential Real Estate Property [Table Text Block]

The following table shows information regarding foreclosed residential real estate property at the dates indicated:


	September 30, 2025		December 31, 2024
	(Dollars in thousands)
Foreclosed residential real estate property held by the creditor	$	—	$	—
Recorded investment in mortgage loans collateralized by residential real estate property that are in the process of foreclosure	$	2,707	$	1,301

Financing Receivable Credit Quality Indicators For Consumer And Residential Portfolio Table Text Block

The following table shows the weighted average FICO scores and the weighted average combined LTV ratios at the dates indicated below:


	September 30 2025		December 31 2024
Residential real estate portfolio
FICO score (re-scored)(1)	754		755
LTV (re-valued)(2)	56.8	%	57.9	%
Home equity portfolio
FICO score (re-scored)(1)	768		769
LTV (re-valued)(2)(3)	44.3	%	43.9	%

(1)The average FICO scores at September 30, 2025 are based upon rescores from September 2025, as available for previously originated loans, or the origination score data for loans booked since September 2025. The average FICO scores at December 31, 2024 were based upon rescores from December 2024, as available for previously originated loans, or origination score data for loans booked in December 2024.

(2)The combined LTV ratios for September 30, 2025 are based upon updated automated valuations as of August 2025, when available, and/or the most current valuation data available. The combined LTV ratios for December 31, 2024 were based upon updated automated valuations as of November 2024, when available, and/or the most current valuation data available. The updated automated valuations provide new information on loans that may be available since the previous valuation was obtained. If no new information is available, the valuation will default to the previously obtained data or most recent appraisal.

(3)For home equity loans and lines in a subordinate lien, the LTV data represents a combined LTV, taking into account the senior lien data for loans and lines.

Financing Receivable, Past Due [Table Text Block]

The following tables show the age analysis of past due financing receivables as of the dates indicated:


	September 30, 2025
	30-59 days			60-89 days			90 days or more			Total Past Due					Total Financing Receivables (2)
	Number of Loans	Principal Balance		Number of Loans	Principal Balance		Number of Loans	Principal Balance		Number of Loans	Principal Balance		Current
	(Dollars in thousands)
Loan Portfolio
Commercial and industrial	34	$	8,630	17	$	10,081	33	$	10,018	84	$	28,729	$	4,503,565	$	4,532,294
Commercial real estate	18	8,715		2	1,489		7	6,907		27	17,111		8,224,347		8,241,458
Commercial construction	3	8,867		3	10,737		2	7,722		8	27,326		1,412,550		1,439,876
Residential real estate	21	5,086		10	3,031		16	3,489		47	11,606		2,905,495		2,917,101
Home equity	22	2,583		6	854		19	2,105		47	5,542		1,278,597		1,284,139
Other consumer (1)	472	313		6	9		7	6		485	328		37,247		37,575
Total	570	$	34,194	44	$	26,201	84	$	30,247	698	$	90,642	$	18,361,801	$	18,452,443


	December 31, 2024
	30-59 days			60-89 days			90 days or more			Total Past Due					Total Financing Receivables (2)
	Number of Loans	Principal Balance		Number of Loans	Principal Balance		Number of Loans	Principal Balance		Number of Loans	Principal Balance		Current
	(Dollars in thousands)
Loan Portfolio
Commercial and industrial	125	$	5,864	5	$	29	8	$	13,872	138	$	19,765	$	3,226,690	$	3,246,455
Commercial real estate	4	33,860		—	—		3	20,458		7	54,318		6,785,387		6,839,705
Commercial construction	—	—		—	—		—	—		—	—		782,078		782,078
Residential real estate	27	6,310		9	1,401		10	2,224		46	9,935		2,450,665		2,460,600
Home equity	9	1,046		11	764		10	1,126		30	2,936		1,137,232		1,140,168
Other consumer (1)	596	441		3	7		6	6		605	454		38,918		39,372
Total	761	$	47,521	28	$	2,201	37	$	37,686	826	$	87,408	$	14,420,970	$	14,508,378

(1)Other consumer portfolio is inclusive of deposit account overdrafts recorded as loan balances.

(2)The amount of net deferred fees/costs on originated loans included in the ending balance was $7.2 million and $6.1 million at September 30, 2025 and December 31, 2024, respectively. Net unamortized discounts on acquired loans included in the ending balance were $163.1 million and $8.1 million at September 30, 2025 and December 31, 2024, respectively.

Financing Receivable, Nonaccrual [Table Text Block]

The following table shows information regarding non-accrual loans as of the dates indicated:


	Non-accrual Balances
	September 30, 2025						December 31, 2024
	With Allowance for Credit Losses		Without Allowance for Credit Losses (1)		Total		With Allowance for Credit Losses		Without Allowance for Credit Losses (1)		Total
	(Dollars in thousands)
Commercial and industrial	$	23,173	$	—	$	23,173	$	2,802	$	11,652	$	14,454
Commercial real estate	5,375		23,841		29,216		67,126		7,217		74,343
Commercial construction	15,516		—		15,516		—		—		—
Residential real estate	14,406		—		14,406		10,243		—		10,243
Home equity	4,244		—		4,244		2,479		—		2,479
Other consumer	42		—		42		10		—		10
Total non-accrual loans	$	62,756	$	23,841	$	86,597	$	82,660	$	18,869	$	101,529

(1)Non-accrual balances reported above without an allowance for credit losses are attributable to loans evaluated on an individual basis where it was determined that there was no risk of loss due to sufficient underlying collateral values.

Financing Receivable, Modified, Past Due

Financing Receivable, Troubled Debt Restructuring [Table Text Block]

The following tables present the period end amortized cost basis of loans modified to borrowers experiencing financial difficulty during the periods indicated, disaggregated by class of financing receivable, type of modification granted and the financial effect of the modifications:


	Three Months Ended September 30, 2025
	Amortized Cost Basis		% of Total Class of Financing Receivable		Financial Effect
(Dollars in thousands)
Term Extension

Commercial real estate	$	13,151	0.16	%	Added a weighted-average contractual term of 1.1 years to the life of the loans

Residential real estate	737		0.03	%	Added a weighted-average contractual term of 6.8 years to the life of the loans
Home equity	7		—	%	Added a weighted-average contractual term of 1.1 years to the life of the loans

Total	$	13,895











Other Than Insignificant Payment Delay
Commercial and industrial	$	161	—	%	Modification was made with minimal financial effect






Total	$	161

Term Extension and Interest Rate Reduction





Home equity	$	102	0.01%		Extended the contractual term on one loan by 15.4 years and reduced the interest rate from 7.24% to 6.88%

Total	$	102









Total Outstanding Modified	$	14,158

	Nine Months Ended September 30, 2025


	Amortized Cost Basis		% of Total Class of Financing Receivable		Financial Effect
(Dollars in thousands)
Term Extension
Commercial and industrial	$	8,965	0.20%		Added a weighted-average contractual term of 1 year to the life of the loans
Commercial real estate	16,711		0.20%		Added a weighted-average contractual term of 1 year to the life of the loans

Residential real estate	1,008		0.03%		Added a weighted-average contractual term of 9.8 years to the life of the loans
Home equity	251		0.02%		Added a weighted-average contractual term of 5.1 years to the life of the loans

Total	$	26,935











Other Than Insignificant Payment Delay
Commercial and industrial	$	733	0.02%		Modification was made with minimal financial effect
Commercial real estate	11,002		0.13%		Modification was made with minimal financial effect





Total	$	11,735

Term Extension and Interest Rate Reduction
Commercial and industrial	$	89	—%		Extended the contractual term on one loan by 5.0 years and reduced the interest rate from 9.50% to 6.69%
Commercial real estate	25,060		0.30%		Added a weighted-average contractual term of 3.7 years to the life of the loans and reduced the weighted-average interest rate from 7.85% to 6.83%



Home equity	1,285		0.10%		Added a weighted-average contractual term of 22.9 years to the life of the loans and reduced the weighted-average interest rate from 7.25% to 6.88%

Total	$	26,434

Term Extension and Other Than Insignificant Payment Delay

Commercial real estate	$	22,248	0.27%		Modification on one loan included an interest rate reduction from 5.91% to 5.50% and payment deferral of 13 months





Total	$	22,248
Total Outstanding Modified	$	87,352

	Three Months Ended September 30, 2024
	Amortized Cost Basis		% of Total Class of Financing Receivable		Financial Effect
(Dollars in thousands)
Term Extension
Commercial and industrial	$	5,985	0.19	%	Added a weighted-average contractual term of 4 months to the life of the loans
Commercial real estate	4,507		0.07	%	Added a weighted-average contractual term of 5 months to the life of the loans





Total	$	10,492



	Nine Months Ended September 30, 2024
	Amortized Cost Basis		% of Total Class of Financing Receivable		Financial Effect
(Dollars in thousands)
Term Extension
Commercial and industrial	$	13,161	0.42	%	Added a weighted-average contractual term of 1.1 years to the life of the loans
Commercial real estate	32,588		0.47	%	Added a weighted-average contractual term of 5 months to the life of the loans
Commercial construction	3,488		0.47	%	Added a weighted-average contractual term of 10 months to the life of the loans

Residential real estate	297		—	%	Extended the contractual term on one loan by 6.2 years


Total	$	49,533

Interest Rate Reduction
Commercial and industrial	$	42	—	%	Reduced contractual rate on one loan from 11.00% to 8.20%



Home equity	64		0.01	%	Reduced contractual rate on one loan from 7.99% to 7.00%

Total	$	106











Term Extension and Interest Rate Reduction
Commercial and industrial	$	131	—	%	Added a weighted-average contractual term of 1.8 years to the life of the loans and reduced the weighted-average interest rate from 10.14% to 7.02%



Home equity	69		0.01	%	Extended the contractual term on one loan by 8.1 years and reduced the interest rate from 10.00% to 6.80%

Total	$	200

Other Than Insignificant Payment Delay
Commercial and industrial	$	1,809	0.06	%	Modification made with minimal financial effect
Commercial real estate	6,350		0.09	%	Modification made with minimal financial effect





Total	$	8,159
Total Outstanding Modified	$	57,998