v3.25.4
Loans - Loans' Credit Quality (Details) - USD ($)
$ in Thousands
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost $ 4,407,787 $ 4,499,300  
Allowance for expected credit losses (25,376) (25,709) $ (25,759)
Total net loans 4,382,411 4,473,591  
Loans originated year 514,608 497,320  
Loans originated 1 year past 470,672 366,835  
Loans originated 2 years past 285,016 761,040  
Loans originated 3 years past 729,448 423,290  
Loans originated 4 years past 351,065 310,747  
Loans originated prior 1,855,354 1,889,030  
Overdrafts and credit cards 201,624 251,038  
Total amortized cost 4,407,787 4,499,300  
Commercial loans      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 535,094 613,820  
Allowance for expected credit losses (12,357) (11,684) (11,248)
Total net loans 522,737 602,136  
Total amortized cost 535,094 613,820  
Commercial loans | Overdrafts      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 63,729 117,455  
Allowance for expected credit losses (70) (75)  
Total net loans 63,659 117,380  
Total amortized cost 63,729 117,455  
Commercial loans | Government      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 276,815 266,303  
Allowance for expected credit losses (257) (462)  
Total net loans 276,558 265,841  
Total amortized cost 276,815 266,303  
Commercial loans | Commercial and industrial      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 194,550 230,062  
Allowance for expected credit losses (12,030) (11,147)  
Total net loans 182,520 218,915  
Total amortized cost 194,550 230,062  
Commercial real estate loans      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 565,231 642,038  
Allowance for expected credit losses (1,098) (3,267) (1,441)
Total net loans 564,133 638,771  
Total amortized cost 565,231 642,038  
Commercial real estate loans | Commercial mortgage      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 487,658 593,554  
Allowance for expected credit losses (1,098) (3,267)  
Total net loans 486,560 590,287  
Total amortized cost 487,658 593,554  
Commercial real estate loans | Construction      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 77,573 48,484  
Allowance for expected credit losses 0 0  
Total net loans 77,573 48,484  
Total amortized cost 77,573 48,484  
Consumer loans      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 195,553 192,750  
Allowance for expected credit losses (3,415) (3,254) (3,096)
Total net loans 192,138 189,496  
Total amortized cost 195,553 192,750  
Consumer loans | Overdrafts      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 35,059 37,148  
Allowance for expected credit losses (350) (378)  
Total net loans 34,709 36,770  
Total amortized cost 35,059 37,148  
Consumer loans | Automobile financing      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 19,170 18,180  
Allowance for expected credit losses (27) (34)  
Total net loans 19,143 18,146  
Total amortized cost 19,170 18,180  
Consumer loans | Credit card      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 99,078 90,677  
Allowance for expected credit losses (2,184) (1,919)  
Total net loans 96,894 88,758  
Total amortized cost 99,078 90,677  
Consumer loans | Other consumer      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 42,246 46,745  
Allowance for expected credit losses (854) (923)  
Total net loans 41,392 45,822  
Total amortized cost 42,246 46,745  
Consumer loans | Other consumer | Cash and Portfolio Secured Lending Collateral      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 6,000 10,000  
Consumer loans | Other consumer | Buildings in Construction or Other Collateral      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 27,000 27,000  
Residential mortgage loans      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 3,111,909 3,050,692  
Allowance for expected credit losses (8,506) (7,504) $ (9,974)
Total net loans 3,103,403 3,043,188  
Total amortized cost 3,111,909 3,050,692  
Pass      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 4,185,297 4,254,669  
Loans originated year 514,608 497,053  
Loans originated 1 year past 470,244 366,278  
Loans originated 2 years past 283,923 759,398  
Loans originated 3 years past 722,368 422,496  
Loans originated 4 years past 350,808 270,060  
Loans originated prior 1,643,350 1,690,525  
Overdrafts and credit cards 199,996 248,859  
Total amortized cost 4,185,297 4,254,669  
Pass | Commercial loans      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 516,387 592,772  
Pass | Commercial loans | Overdrafts      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 62,819 115,558  
Pass | Commercial loans | Government      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 276,815 266,303  
Pass | Commercial loans | Commercial and industrial      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 176,753 210,911  
Pass | Commercial real estate loans      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 559,551 621,359  
Pass | Commercial real estate loans | Commercial mortgage      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 481,978 572,875  
Pass | Commercial real estate loans | Construction      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 77,573 48,484  
Pass | Consumer loans      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 193,018 190,733  
Pass | Consumer loans | Overdrafts      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 35,022 37,110  
Pass | Consumer loans | Automobile financing      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 18,993 18,010  
Pass | Consumer loans | Credit card      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 98,398 90,433  
Pass | Consumer loans | Other consumer      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 40,605 45,180  
Pass | Residential mortgage loans      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 2,916,341 2,849,805  
Special mention      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 4,563 26,720  
Loans originated year 0 0  
Loans originated 1 year past 0 0  
Loans originated 2 years past 0 888  
Loans originated 3 years past 805 781  
Loans originated 4 years past 0 451  
Loans originated prior 3,148 22,704  
Overdrafts and credit cards 610 1,896  
Total amortized cost 4,563 26,720  
Special mention | Commercial loans      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 610 2,243  
Special mention | Commercial loans | Overdrafts      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 610 1,896  
Special mention | Commercial loans | Government      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 0 0  
Special mention | Commercial loans | Commercial and industrial      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 0 347  
Special mention | Commercial real estate loans      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 184 858  
Special mention | Commercial real estate loans | Commercial mortgage      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 184 858  
Special mention | Commercial real estate loans | Construction      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 0 0  
Special mention | Consumer loans      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 0 0  
Special mention | Consumer loans | Overdrafts      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 0 0  
Special mention | Consumer loans | Automobile financing      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 0 0  
Special mention | Consumer loans | Credit card      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 0 0  
Special mention | Consumer loans | Other consumer      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 0 0  
Special mention | Residential mortgage loans      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 3,769 23,619  
Substandard      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 126,600 141,254  
Loans originated year 0 267  
Loans originated 1 year past 247 506  
Loans originated 2 years past 1,039 750  
Loans originated 3 years past 6,250 0  
Loans originated 4 years past 0 32,733  
Loans originated prior 118,246 106,754  
Overdrafts and credit cards 818 244  
Total amortized cost 126,600 141,254  
Substandard | Commercial loans      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 772 778  
Substandard | Commercial loans | Overdrafts      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 105 0  
Substandard | Commercial loans | Government      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 0 0  
Substandard | Commercial loans | Commercial and industrial      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 667 778  
Substandard | Commercial real estate loans      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 2,062 2,301  
Substandard | Commercial real estate loans | Commercial mortgage      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 2,062 2,301  
Substandard | Commercial real estate loans | Construction      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 0 0  
Substandard | Consumer loans      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 1,527 1,082  
Substandard | Consumer loans | Overdrafts      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 32 0  
Substandard | Consumer loans | Automobile financing      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 3 6  
Substandard | Consumer loans | Credit card      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 680 244  
Substandard | Consumer loans | Other consumer      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 812 832  
Substandard | Residential mortgage loans      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 122,239 137,093  
Non-accrual      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 91,327 76,657  
Loans originated year 0 0  
Loans originated 1 year past 181 51  
Loans originated 2 years past 54 4  
Loans originated 3 years past 25 13  
Loans originated 4 years past 257 7,503  
Loans originated prior 90,610 69,047  
Overdrafts and credit cards 200 39  
Total amortized cost 91,327 76,657  
Non-accrual | Commercial loans      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 17,325 18,027  
Non-accrual | Commercial loans | Overdrafts      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 195 1  
Non-accrual | Commercial loans | Government      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 0 0  
Non-accrual | Commercial loans | Commercial and industrial      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 17,130 18,026  
Non-accrual | Commercial real estate loans      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 3,434 17,520  
Non-accrual | Commercial real estate loans | Commercial mortgage      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 3,434 17,520  
Non-accrual | Commercial real estate loans | Construction      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 0 0  
Non-accrual | Consumer loans      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 1,008 935  
Non-accrual | Consumer loans | Overdrafts      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 5 38  
Non-accrual | Consumer loans | Automobile financing      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 174 164  
Non-accrual | Consumer loans | Credit card      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 0 0  
Non-accrual | Consumer loans | Other consumer      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost 829 733  
Non-accrual | Residential mortgage loans      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total amortized cost $ 69,560 $ 40,175