v3.26.1
Loans Receivable - Summary of loans by year of origination, internally assigned credit grades and risk characteristics (Detail) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2026
Dec. 31, 2025
Financing Receivable, Credit Quality Indicator [Line Items]    
Total $ 1,821,627 $ 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   99
Current period gross charge-offs Total 0 99
Construction Loans [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current period gross charge-offs Total 0  
Loans Receivable [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
2026 and 2025 37,752 114,634
2025 and 2024 114,801 206,358
2024 and 2023 182,523 186,018
2023 and 2022 187,285 324,900
2022 and 2021 316,032 203,560
Prior 796,145 620,249
Revolving Loans 187,089 163,024
Total 1,821,627 1,818,743
Loans Receivable [Member] | Commercial Real Estate [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
2026 and 2025 14,191 63,586
2025 and 2024 58,134 128,257
2024 and 2023 122,506 161,317
2023 and 2022 159,861 299,041
2022 and 2021 291,396 129,951
Prior 671,501 555,417
Revolving Loans 5,758 5,962
Total 1,323,347 1,343,531
Loans Receivable [Member] | Commercial And Industrial [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
2026 and 2025 1,323 8,251
2025 and 2024 7,886 1,077
2024 and 2023 3,251 6,197
2023 and 2022 6,133 8,958
2022 and 2021 15,005 11,074
Prior 21,402 17,468
Revolving Loans 25,673 23,532
Total 80,673 76,557
Loans Receivable [Member] | Construction Loans [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
2026 and 2025 6,427 5,000
2025 and 2024 5,000 17,070
2024 and 2023 1,108 0
2023 and 2022 0 9,290
2022 and 2021 1,360 55,582
Prior 52,370 0
Revolving Loans 144,597 122,541
Total 210,862 209,483
Loans Receivable [Member] | Residential First lien Mortgage [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
2026 and 2025 3,821 28,071
2025 and 2024 34,871 58,909
2024 and 2023 54,628 17,605
2023 and 2022 19,617 6,408
2022 and 2021 7,032 5,903
Prior 50,584 46,917
Revolving Loans 0 0
Total 170,553 163,813
Loans Receivable [Member] | Residential First lien Mortgage [Member] | Performing Financial Instruments [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
2026 and 2025 3,821 28,071
2025 and 2024 34,871 58,909
2024 and 2023 54,628 17,605
2023 and 2022 19,617 6,408
2022 and 2021 7,032 5,903
Prior 50,141 46,825
Revolving Loans 0 0
Total 170,110 163,721
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 443 92
Revolving Loans 0 0
Total 443 92
Loans Receivable [Member] | Home Equity Loan [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
2026 and 2025 11,990 9,726
2025 and 2024 8,910 1,045
2024 and 2023 1,030 899
2023 and 2022 1,674 1,203
2022 and 2021 1,239 1,050
Prior 288 447
Revolving Loans 11,061 10,989
Total 36,192 25,359
Loans Receivable [Member] | Home Equity Loan [Member] | Performing Financial Instruments [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
2026 and 2025 11,990 9,726
2025 and 2024 8,910 1,045
2024 and 2023 1,030 899
2023 and 2022 1,674 1,203
2022 and 2021 1,239 1,050
Prior 288 442
Revolving Loans 11,061 10,989
Total 36,192 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 37,752 114,634
2025 and 2024 114,801 206,358
2024 and 2023 182,523 186,018
2023 and 2022 187,285 324,900
2022 and 2021 314,967 203,560
Prior 770,889 592,869
Revolving Loans 187,089 163,024
Total 1,795,306 1,791,363
Loans Receivable [Member] | Pass [Member] | Commercial Real Estate [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
2026 and 2025 14,191 63,586
2025 and 2024 58,134 128,257
2024 and 2023 122,506 161,317
2023 and 2022 159,861 299,041
2022 and 2021 290,331 129,951
Prior 647,860 529,896
Revolving Loans 5,758 5,962
Total 1,298,641 1,318,010
Loans Receivable [Member] | Pass [Member] | Commercial And Industrial [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
2026 and 2025 1,323 8,251
2025 and 2024 7,886 1,077
2024 and 2023 3,251 6,197
2023 and 2022 6,133 8,958
2022 and 2021 15,005 11,074
Prior 20,230 15,706
Revolving Loans 25,673 23,532
Total 79,501 74,795
Loans Receivable [Member] | Pass [Member] | Construction Loans [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
2026 and 2025 6,427 5,000
2025 and 2024 5,000 17,070
2024 and 2023 1,108 0
2023 and 2022 0 9,290
2022 and 2021 1,360 55,582
Prior 52,370 0
Revolving Loans 144,597 122,541
Total 210,862 209,483
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 1,065 0
Prior 8,778 9,934
Revolving Loans 0 0
Total 9,843 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 1,065 0
Prior 8,278 9,429
Revolving Loans 0 0
Total 9,343 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 500 505
Revolving Loans 0 0
Total 500 505
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 16,478 17,446
Revolving Loans 0 0
Total 16,478 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 15,363 16,092
Revolving Loans 0 0
Total 15,363 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 672 1,257
Revolving Loans 0 0
Total 672 $ 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 0  
Revolving Loans 0  
Total $ 0