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Loans and Allowance for Credit Losses (Tables)
 6 Months Ended
Jun. 30, 2023
Receivables [Abstract]  
Summary of Gross Loans by Type
Loans and leases, net of unearned income, are summarized as follows:
June 30,
2023		December 31, 2022
 (dollars in thousands)
Real estate - commercial mortgage$7,846,861 $7,693,835 
Commercial and industrial4,602,446 4,477,537 
Real-estate - residential mortgage5,147,262 4,737,279 
Real-estate - home equity1,061,891 1,102,838 
Real-estate - construction1,308,564 1,269,925 
Consumer763,530 699,179 
Leases and other loans346,015 328,331 
Gross loans21,076,569 20,308,924 
Unearned income(31,884)(29,377)
Net loans$21,044,685 $20,279,547 
Schedule of Allowance for Credit Losses :
June 30,
2023		December 31,
2022
(dollars in thousands)
ACL - loans $287,442 $269,366 
Reserve for OBS credit exposures(1)
$16,568 $16,328 
(1) Included in other liabilities on the consolidated balance sheets.
Activity in the Allowance for Credit Losses :
Three months ended June 30Six months ended June 30
 2023202220232022
(dollars in thousands)
Balance at beginning of period$278,695 $243,705 $269,366 $249,001 
Loans charged off(4,787)(1,618)(21,690)(3,518)
Recoveries of loans previously charged off2,816 5,367 5,715 8,321 
Net loans (charged off) recovered(1,971)3,749 (15,975)4,803 
Provision for credit losses(1)
10,718 1,110 34,051 (5,240)
Balance at end of period$287,442 $248,564 $287,442 $248,564 
Provision for OBS credit exposures$(971)$390 $240 $(210)
Reserve for OBS credit exposures$16,568 $14,323 $16,568 $14,323 
(1) Provision included in the table only includes the portion related to net loans.

The following table presents the activity in the ACL by portfolio segment:
Real Estate 
Commercial
Mortgage		Commercial and
Industrial		Real Estate Residential
Mortgage		Consumer and Home
Equity		Real Estate
Construction		Leases and other loansTotal
 (dollars in thousands)
Three months ended June 30, 2023
Balance at March 31, 2023$66,256 $77,126 $86,209 $27,303 $11,646 $10,155 $278,695 
Loans charged off(230)(2,017)(62)(1,313)— (1,165)(4,787)
Recoveries of loans previously charged off29 988 58 959 569 213 2,816 
Net loans (charged off) recovered(201)(1,029)(4)(354)569 (952)(1,971)
Provision for loan losses(1)
6,247 (908)2,644 2,033 (1,071)1,773 10,718 
Balance at June 30, 2023$72,302 $75,189 $88,849 $28,982 $11,144 $10,976 $287,442 
Three months ended June 30, 2022
Balance at March 31, 2022$79,853 $66,511 $55,892 $20,213 $13,303 $7,933 $243,705 
Loans charged off— (201)(66)(877)— (474)(1,618)
Recoveries of loans previously charged off3,536 739 92 762 12 226 5,367 
Net loans (charged off) recovered3,536 538 26 (115)12 (248)3,749 
Provision for loan and lease losses(1)
(10,784)5,070 5,717 2,982 (2,687)812 1,110 
Balance at June 30, 2022$72,605 $72,119 $61,635 $23,080 $10,628 $8,497 $248,564 
Six months ended June 30, 2023
Balance at December 31, 2022$69,456 $70,116 $83,250 $26,429 $10,743 $9,372 $269,366 
Loans charged off(13,592)(2,629)(62)(3,519)— (1,888)(21,690)
Recoveries of loans previously charged off815 2,074 106 1,620 771 329 5,715 
Net loans (charged off) recovered(12,777)(555)44 (1,899)771 (1,559)(15,975)
Provision for loan losses(1)
15,623 5,628 5,555 4,452 (370)3,163 34,051 
Balance at June 30, 2023$72,302 $75,189 $88,849 $28,982 $11,144 $10,976 $287,442 
Six months ended June 30, 2022
Balance at December 31, 2021$87,970 $67,056 $54,236 $19,749 $12,941 $7,049 $249,001 
Loans charged off(152)(428)(66)(1,929)— (943)(3,518)
Recoveries of loans previously charged off3,648 2,719 314 1,216 44 380 8,321 
Net loans (charged off) recovered3,496 2,291 248 (713)44 (563)4,803 
Provision for loan losses(1)
(18,861)2,772 7,151 4,044 (2,357)2,011 (5,240)
Balance at June 30, 2022$72,605 $72,119 $61,635 $23,080 $10,628 $8,497 $248,564 
(1) Provision included in the table only includes the portion related to net loans.
Total Impaired Loans by Class Segment
The following table presents total non-accrual loans, by class segment:
June 30, 2023December 31, 2022
With a Related AllowanceWithout a Related AllowanceTotalWith a Related AllowanceWithout a Related AllowanceTotal
(dollars in thousands)
Real estate - commercial mortgage$19,727 $34,088 $53,815 $39,722 $30,439 $70,161 
Commercial and industrial17,420 12,068 29,488 14,804 12,312 27,116 
Real estate - residential mortgage19,675 2,025 21,700 25,315 979 26,294 
Real estate - home equity5,711 116 5,827 5,975 130 6,105 
Real estate - construction707 392 1,099 866 502 1,368 
Consumer17 — 17 92 — 92 
Leases and other loans9,264 2,070 11,334 4,052 9,255 13,307 
$72,521 $50,759 $123,280 $90,826 $53,617 $144,443 
Financing Receivable Credit Quality Indicators
The following table summarizes designated internal risk rating categories by portfolio segment and loan class, by origination year, in the current period:
June 30, 2023
Term Loans Amortized Cost Basis by Origination YearRevolving LoansRevolving Loans converted to Term Loans
(in thousands)AmortizedAmortized
20232022202120202019PriorCost BasisCost BasisTotal
Real estate - commercial mortgage
Pass$436,213 $1,014,277 $1,079,313 $931,445 $761,840 $3,044,060 $98,737 $3,912 $7,369,797 
Special Mention— 17,541 70,283 17,725 38,372 149,434 1,012 — 294,367 
Substandard or Lower202 4,889 25,184 45,196 25,257 81,489 480 — 182,697 
Total real estate - commercial mortgage436,415 1,036,707 1,174,780 994,366 825,469 3,274,983 100,229 3,912 7,846,861 
Real estate - commercial mortgage
Current period gross charge-offs— — — — — (30)— (13,562)(13,592)
Commercial and industrial(1)
Pass461,413 652,086 425,486 365,676 292,754 706,510 1,432,210 9,051 4,345,186 
Special Mention392 16,804 11,786 5,392 3,522 16,458 60,230 748 115,332 
Substandard or Lower205 3,221 1,780 3,063 19,248 29,342 84,059 1,010 141,928 
Total commercial and industrial462,010 672,111 439,052 374,131 315,524 752,310 1,576,499 10,809 4,602,446 
Commercial and industrial(1)
Current period gross charge-offs— — — — — — (502)(2,127)(2,629)
 Real estate - construction(2)
Pass103,193 218,294 432,924 127,131 18,815 88,431 17,480 — 1,006,268 
Special Mention— 26 262 28,037 — 11,263 — — 39,588 
Substandard or Lower— 473 — — 2,202 23,259 2,408 — 28,342 
Total real estate - construction103,193 218,793 433,186 155,168 21,017 122,953 19,888 — 1,074,198 
Real estate - construction(2)
Current period gross charge-offs— — — — — — — — — 
Total
Pass$1,000,819 $1,884,657 $1,937,723 $1,424,252 $1,073,409 $3,839,001 $1,548,427 $12,963 $12,721,251 
Special Mention392 34,371 82,331 51,154 41,894 177,155 61,242 748 449,287 
Substandard or Lower407 8,583 26,964 48,259 46,707 134,090 86,947 1,010 352,967 
Total$1,001,618 $1,927,611 $2,047,018 $1,523,665 $1,162,010 $4,150,246 $1,696,616 $14,721 $13,523,505 
(1) Loans originated in 2021 and 2020 include $9.8 million of PPP loans that were assigned a rating of Pass based on the existence of a federal government
guaranty through the SBA.
(2) Excludes real estate - construction - other.
The following table summarizes designated internal risk rating categories by portfolio segment and loan class, by origination year, in the prior period:
December 31, 2022
Term Loans Amortized Cost Basis by Origination YearRevolving LoansRevolving Loans converted to Term Loans
(dollars in thousands)AmortizedAmortized
20222021202020192018PriorCost BasisCost BasisTotal
Real estate - commercial mortgage
Pass$1,014,575 $1,095,725 $969,118 $810,850 $621,689 $2,610,511 $80,665 $307 $7,203,440 
Special Mention95 50,367 23,296 33,735 16,205 181,736 947 — 306,381 
Substandard or Lower1,032 3,039 31,042 38,378 23,112 87,168 243 — 184,014 
Total real estate - commercial mortgage1,015,702 1,149,131 1,023,456 882,963 661,006 2,879,415 81,855 307 7,693,835 
Real estate - commercial mortgage
Current period gross charge-offs— — — — — (53)— (12,420)(12,473)
Commercial and industrial(1)
Pass907,390 449,145 397,881 315,605 185,096 604,352 1,387,961 618 4,248,048 
Special Mention11,405 24,479 3,763 8,147 5,218 24,633 56,048 250 133,943 
Substandard or Lower834 418 4,818 13,044 3,081 22,025 51,077 249 95,546 
Total commercial and industrial919,629 474,042 406,462 336,796 193,395 651,010 1,495,086 1,117 4,477,537 
Commercial and industrial(1)
Current period gross charge-offs— — (36)— (21)(365)(1,192)(776)(2,390)
Real estate - construction(2)
Pass159,195 390,993 243,406 28,539 24,421 93,511 47,271 — 987,336 
Special Mention— — — — — 21,603 — — 21,603 
Substandard or Lower— — 3,852 2,274 — 4,272 203 — 10,601 
Total real estate - construction159,195 390,993 247,258 30,813 24,421 119,386 47,474 — 1,019,540 
Real estate - construction(2)
Current period gross charge-offs— — — — — — — — — 
Total
Pass$2,081,160 $1,935,863 $1,610,405 $1,154,994 $831,206 $3,308,374 $1,515,897 $925 $12,438,824 
Special Mention11,500 74,846 27,059 41,882 21,423 227,972 56,995 250 461,927 
Substandard or Lower1,866 3,457 39,712 53,696 26,193 113,465 51,523 249 290,161 
Total$2,094,526 $2,014,166 $1,677,176 $1,250,572 $878,822 $3,649,811 $1,624,415 $1,424 $13,190,912 
(1) Loans originated in 2021 and 2020 include $20.4 million of PPP loans that were assigned a rating of Pass based on the existence of a federal government
guaranty through the SBA.
(2) Excludes real estate - construction - other.
The following tables present the amortized cost of these loans based on payment activity, by origination year, for the periods shown:
June 30, 2023
Term Loans Amortized Cost Basis by Origination YearRevolving LoansRevolving Loans converted to Term Loans
(dollars in thousands)AmortizedAmortized
20232022202120202019PriorCost BasisCost BasisTotal
Real estate - residential mortgage
Performing$413,908 $1,030,693 $1,715,214 $1,020,426 $276,538 $651,744 $— $— $5,108,523 
Nonperforming— 658 4,680 4,650 5,239 23,512 — — 38,739 
    Total real estate - residential mortgage413,908 1,031,351 1,719,894 1,025,076 281,777 675,256 — — 5,147,262 
Real estate - residential mortgage
Current period gross charge-offs— — — — — — — (62)(62)
Consumer and real estate - home equity
Performing169,479 309,613 94,775 66,026 49,842 284,430 814,043 26,745 1,814,953 
Nonperforming60 403 516 418 66 5,301 1,393 2,311 10,468 
Total consumer and real estate - home equity169,539 310,016 95,291 66,444 49,908 289,731 815,436 29,056 1,825,421 
Consumer and real estate - home equity
Current period gross charge-offs— — — — — (374)— (3,145)(3,519)
Leases and other loans
Performing99,355 94,583 33,981 29,249 22,671 22,958 — — 302,797 
Nonperforming— — — — — 11,334 — — 11,334 
Leases and other loans99,355 94,583 33,981 29,249 22,671 34,292 — — 314,131 
Leases and other loans
Current period gross charge-offs(214)(401)(133)(72)(52)(417)— (599)(1,888)
Construction - other
Performing31,781 173,436 25,814 3,335 — — — — 234,366 
Nonperforming— — — — — — — — — 
Total construction - other31,781 173,436 25,814 3,335 — — — — 234,366 
Construction - other
Current period gross charge-offs— — — — — — — — — 
Total
Performing$714,523 $1,608,325 $1,869,784 $1,119,036 $349,051 $959,132 $814,043 $26,745 $7,460,639 
Nonperforming60 1,061 5,196 5,068 5,305 40,147 1,393 2,311 60,541 
Total$714,583 $1,609,386 $1,874,980 $1,124,104 $354,356 $999,279 $815,436 $29,056 $7,521,180 
December 31, 2022
Term Loans Amortized Cost Basis by Origination YearRevolving LoansRevolving Loans converted to Term Loans
(dollars in thousands)AmortizedAmortized
20222021202020192018PriorCost BasisCost BasisTotal
Real estate - residential mortgage
Performing$933,903 $1,708,703 $1,054,126 $286,167 $87,455 $620,416 $— $— $4,690,770 
Nonperforming1,199 5,104 6,597 6,466 4,587 22,556 — — 46,509 
    Total real estate - residential mortgage935,102 1,713,807 1,060,723 292,633 92,042 642,972 — — 4,737,279 
Real estate - residential mortgage
Current period gross charge-offs— — — — — — — (66)(66)
Consumer and Real estate - home equity
Performing416,631 109,724 80,422 52,384 45,642 211,127 842,226 34,061 1,792,217 
Nonperforming292 298 174 36 98 6,512 1,722 668 9,800 
Total consumer and real estate - home equity416,923 110,022 80,596 52,420 45,740 217,639 843,948 34,729 1,802,017 
Consumer and Real estate - home equity
Current period gross charge-offs— (587)(70)(108)(16)(442)(178)(3,011)(4,412)
Construction - other
Performing164,924 73,492 10,892 — 1,077 — — — 250,385 
Nonperforming— — — — — — — — — 
Total construction - other164,924 73,492 10,892 — 1,077 — — — 250,385 
Construction - other
Current period gross charge-offs— — — — — — — — — 
Leases and other loans
Performing146,198 39,427 40,024 29,309 15,019 15,670 — — 285,647 
Nonperforming— — — — — 13,307 — — 13,307 
Leases and other loans146,198 39,427 40,024 29,309 15,019 28,977 — — 298,954 
Leases and other loans
Current period gross charge-offs(506)(167)(140)(80)(47)(1,191)— — (2,131)
Total
Performing$1,661,656 $1,931,346 $1,185,464 $367,860 $149,193 $847,213 $842,226 $34,061 $7,019,019 
Nonperforming1,491 5,402 6,771 6,502 4,685 42,375 1,722 668 69,616 
Total$1,663,147 $1,936,748 $1,192,235 $374,362 $153,878 $889,588 $843,948 $34,729 $7,088,635 
Non-Performing Assets
The following table presents non-performing assets:
June 30,
2023		December 31,
2022
 (dollars in thousands)
Non-accrual loans$123,280 $144,443 
Loans 90 days or more past due and still accruing(1)
24,415 27,463 
Total non-performing loans147,695 171,906 
OREO(2)
3,881 5,790 
Total non-performing assets$151,576 $177,696 
(1) Excludes PPP loans which are fully guaranteed by the federal government of $1.0 million and $7.7 million as of June 30, 2023 and December 31, 2022,
respectively.
(2) Excludes $8.4 million and $6.0 million of residential mortgage properties for which formal foreclosure proceedings were in process as of June 30, 2023 and
December 31, 2022, respectively.
Past due Loan Status and Non-Accrual Loans by Portfolio Segment
The following tables present the aging of the amortized cost basis of loans, by class segment:
30-5960-89≥ 90 Days
Days PastDays PastPast DueNon-
DueDueand AccruingAccrualCurrentTotal
(dollars in thousands)
June 30, 2023
Real estate – commercial mortgage$6,566 $2,671 $1,233 $53,815 $7,782,576 $7,846,861 
Commercial and industrial(1)
3,542 1,977 1,100 29,488 4,566,339 4,602,446 
Real estate – residential mortgage35,456 6,017 17,457 21,700 5,066,632 5,147,262 
Real estate – home equity5,865 1,567 3,902 5,827 1,044,730 1,061,891 
Real estate – construction1,719 — — 1,099 1,305,746 1,308,564 
Consumer6,482 1,382 723 17 754,926 763,530 
Leases and other loans(2)
462 375 — 11,334 301,960 314,131 
Total$60,092 $13,989 $24,415 $123,280 $20,822,909 $21,044,685 
(1) Excludes delinquent PPP loans 30-59 days past due, 60-89 days past due and 90 days or more past due of $0.1 million, $0.0 million and $1.0 million,
respectively, which are fully guaranteed by the federal government and are classified as current.
(2) Includes unearned income.

30-59 Days Past
Due		60-89
Days Past
Due		≥ 90 Days
Past Due
and
Accruing		Non-
accrual		CurrentTotal
(dollars in thousands)
December 31, 2022
Real estate – commercial mortgage$10,753 $4,644 $2,473 $70,161 $7,605,804 $7,693,835 
Commercial and industrial(1)
6,067 2,289 1,172 27,116 4,440,893 4,477,537 
Real estate – residential mortgage57,061 8,209 20,215 26,294 4,625,500 4,737,279 
Real estate – home equity5,666 2,444 2,704 6,105 1,085,919 1,102,838 
Real estate – construction1,762 1,758 — 1,368 1,265,037 1,269,925 
Consumer6,692 1,339 899 92 690,157 699,179 
Leases and other loans(2)
348 122 — 13,307 285,177 298,954 
Total$88,349 $20,805 $27,463 $144,443 $19,998,487 $20,279,547 
(1) Excludes delinquent PPP loans 30-59 days past due, 60-89 days past due and 90 days or more past due of $0.1 million, $0.7 million and $7.7 million,
respectively, which are fully guaranteed by the federal government and are classified as current.
(2) Includes unearned income.
Financing Receivables, Loan Modifications
The following table presents the amortized cost basis during the three months and six months ended June 30, 2023 of the loans modified to borrowers experiencing financial difficulty, disaggregated by class of financing receivable and type of concession granted:

Term Extension
Three months ended June 30, 2023Six months ended June 30, 2023
Amortization Cost Basis% of Class of Financing ReceivableAmortization Cost Basis% of Class of Financing Receivable
(dollars in thousands)
Real estate - commercial mortgage$276 — %$1,478 0.02 %
Commercial and industrial— — 75 — 
Real estate - residential mortgage2,045 0.04 3,423 0.07 
Total$2,321 $4,976 
The following table presents the financial effect of the modifications made to borrowers experiencing financial difficulty for the three months and six months ended June 30, 2023:

Term Extension
Financial Effect
Three months ended June 30, 2023
Real estate - commercial mortgage
Added a weighted-average 1.25 years to the life of loans, which reduced monthly payment amounts for the borrowers.
Real estate - residential mortgage
Added a weighted-average 5.29 years to the life of loans, which reduced monthly payment amounts for the borrowers.
Six months ended June 30, 2023
Real estate - commercial mortgage
Added a weighted-average 2.05 years to the life of loans, which reduced monthly payment amounts for the borrowers.
Commercial and industrial
Added a weighted-average 2.88 years to the life of loans, which reduced monthly payment amounts for the borrowers.
Real estate - residential mortgage
Added a weighted-average 4.64 years to the life of loans, which reduced monthly payment amounts for the borrowers.
The following table presents the performance of loans that have been modified in the last six months as of June 30, 2023.

30-8990+Total
Days PastPast DuePast
CurrentDueand AccruingDue
(dollars in thousands)
Real estate - commercial mortgage$1,478 $— $— $— 
Commercial and industrial75 — — — 
Real estate - residential mortgage3,423 — — — 
Total$4,976 $— $— $—