v3.26.1
Loans Receivable - Summary of loans by year of origination, internally assigned credit grades and risk characteristics (Detail) - USD ($)
$ in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Financing Receivable, Credit Quality Indicator [Line Items]    
Total $ 1,774,281 $ 1,818,743
Commercial Real Estate [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current period gross charge-offs Prior 14 10,181
Current period gross charge-offs Total 14 10,181
Commercial And Industrial [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current period gross charge-offs Prior 4 99
Current period gross charge-offs Total 4 99
Loans Receivable [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
2026 and 2025 83,930 114,634
2025 and 2024 113,817 206,358
2024 and 2023 184,676 186,018
2023 and 2022 190,533 324,900
2022 and 2021 295,699 203,560
Prior 747,210 620,249
Revolving Loans 158,416 163,024
Total 1,774,281 1,818,743
Loans Receivable [Member] | Commercial Real Estate [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
2026 and 2025 22,350 63,586
2025 and 2024 57,795 128,257
2024 and 2023 106,091 161,317
2023 and 2022 157,266 299,041
2022 and 2021 272,367 129,951
Prior 652,140 555,417
Revolving Loans 5,806 5,962
Total 1,273,815 1,343,531
Loans Receivable [Member] | Commercial And Industrial [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
2026 and 2025 4,910 8,251
2025 and 2024 8,101 1,077
2024 and 2023 807 6,197
2023 and 2022 6,321 8,958
2022 and 2021 14,531 11,074
Prior 22,672 17,468
Revolving Loans 19,228 23,532
Total 76,570 76,557
Loans Receivable [Member] | Construction Loans [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
2026 and 2025 20,207 5,000
2025 and 2024 5,000 17,070
2024 and 2023 22,125 0
2023 and 2022 1,848 9,290
2022 and 2021 1,360 55,582
Prior 21,218 0
Revolving Loans 122,430 122,541
Total 194,188 209,483
Loans Receivable [Member] | Residential First lien Mortgage [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
2026 and 2025 9,957 28,071
2025 and 2024 34,648 58,909
2024 and 2023 54,652 17,605
2023 and 2022 23,446 6,408
2022 and 2021 6,235 5,903
Prior 50,016 46,917
Revolving Loans 0 0
Total 178,954 163,813
Loans Receivable [Member] | Residential First lien Mortgage [Member] | Performing Financial Instruments [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
2026 and 2025 9,957 28,071
2025 and 2024 34,648 58,909
2024 and 2023 54,652 17,605
2023 and 2022 23,446 6,408
2022 and 2021 6,235 5,903
Prior 49,583 46,825
Revolving Loans 0 0
Total 178,521 163,721
Loans Receivable [Member] | Residential First lien Mortgage [Member] | Nonperforming Financial Instruments [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
2026 and 2025 0 0
2025 and 2024 0 0
2024 and 2023 0 0
2023 and 2022 0 0
2022 and 2021 0 0
Prior 433 92
Revolving Loans 0 0
Total 433 92
Loans Receivable [Member] | Home Equity Loan [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
2026 and 2025 26,506 9,726
2025 and 2024 8,273 1,045
2024 and 2023 1,001 899
2023 and 2022 1,652 1,203
2022 and 2021 1,206 1,050
Prior 1,164 447
Revolving Loans 10,952 10,989
Total 50,754 25,359
Loans Receivable [Member] | Home Equity Loan [Member] | Performing Financial Instruments [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
2026 and 2025 26,506 9,726
2025 and 2024 8,273 1,045
2024 and 2023 1,001 899
2023 and 2022 1,652 1,203
2022 and 2021 1,206 1,050
Prior 1,164 442
Revolving Loans 10,952 10,989
Total 50,754 25,354
Loans Receivable [Member] | Home Equity Loan [Member] | Nonperforming Financial Instruments [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
2026 and 2025 0 0
2025 and 2024 0 0
2024 and 2023 0 0
2023 and 2022 0 0
2022 and 2021 0 0
Prior 0 5
Revolving Loans 0 0
Total 0 5
Loans Receivable [Member] | Pass [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
2026 and 2025 83,930 114,634
2025 and 2024 113,817 206,358
2024 and 2023 184,676 186,018
2023 and 2022 190,533 324,900
2022 and 2021 294,643 203,560
Prior 722,044 592,869
Revolving Loans 158,416 163,024
Total 1,748,059 1,791,363
Loans Receivable [Member] | Pass [Member] | Commercial Real Estate [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
2026 and 2025 22,350 63,586
2025 and 2024 57,795 128,257
2024 and 2023 106,091 161,317
2023 and 2022 157,266 299,041
2022 and 2021 271,311 129,951
Prior 628,375 529,896
Revolving Loans 5,806 5,962
Total 1,248,994 1,318,010
Loans Receivable [Member] | Pass [Member] | Commercial And Industrial [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
2026 and 2025 4,910 8,251
2025 and 2024 8,101 1,077
2024 and 2023 807 6,197
2023 and 2022 6,321 8,958
2022 and 2021 14,531 11,074
Prior 21,852 15,706
Revolving Loans 19,228 23,532
Total 75,750 74,795
Loans Receivable [Member] | Pass [Member] | Construction Loans [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
2026 and 2025 20,207 5,000
2025 and 2024 5,000 17,070
2024 and 2023 22,125 0
2023 and 2022 1,848 9,290
2022 and 2021 1,360 55,582
Prior 21,070 0
Revolving Loans 122,430 122,541
Total 194,040 209,483
Loans Receivable [Member] | Special Mention [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
2026 and 2025 0 0
2025 and 2024 0 0
2024 and 2023 0 0
2023 and 2022 0 0
2022 and 2021 1,056 0
Prior 8,698 9,934
Revolving Loans 0 0
Total 9,754 9,934
Loans Receivable [Member] | Special Mention [Member] | Commercial Real Estate [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
2026 and 2025 0 0
2025 and 2024 0 0
2024 and 2023 0 0
2023 and 2022 0 0
2022 and 2021 1,056 0
Prior 8,203 9,429
Revolving Loans 0 0
Total 9,259 9,429
Loans Receivable [Member] | Special Mention [Member] | Commercial And Industrial [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
2026 and 2025 0 0
2025 and 2024 0 0
2024 and 2023 0 0
2023 and 2022 0 0
2022 and 2021 0 0
Prior 495 505
Revolving Loans 0 0
Total 495 505
Loans Receivable [Member] | Special Mention [Member] | Construction Loans [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
2026 and 2025 0  
2025 and 2024 0  
2024 and 2023 0  
2023 and 2022 0  
2022 and 2021 0  
Prior 0  
Revolving Loans 0  
Total 0  
Loans Receivable [Member] | Substandard [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
2026 and 2025 0 0
2025 and 2024 0 0
2024 and 2023 0 0
2023 and 2022 0 0
2022 and 2021 0 0
Prior 16,468 17,446
Revolving Loans 0 0
Total 16,468 17,446
Loans Receivable [Member] | Substandard [Member] | Commercial Real Estate [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
2026 and 2025 0 0
2025 and 2024 0 0
2024 and 2023 0 0
2023 and 2022 0 0
2022 and 2021 0 0
Prior 15,562 16,092
Revolving Loans 0 0
Total 15,562 16,092
Loans Receivable [Member] | Substandard [Member] | Commercial And Industrial [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
2026 and 2025 0 0
2025 and 2024 0 0
2024 and 2023 0 0
2023 and 2022 0 0
2022 and 2021 0 0
Prior 325 1,257
Revolving Loans 0 0
Total 325 $ 1,257
Loans Receivable [Member] | Substandard [Member] | Construction Loans [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
2026 and 2025 0  
2025 and 2024 0  
2024 and 2023 0  
2023 and 2022 0  
2022 and 2021 0  
Prior 148  
Revolving Loans 0  
Total $ 148