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Loans and Allowance for Credit Losses - Loan Balances by Year of Origination and Performing and Nonperforming Status (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | $ 851,275 | $ 893,015
Year two | 888,086 | 1,134,650
Year three | 1,043,900 | 1,191,528
Year four | 1,075,378 | 897,782
Year five | 765,208 | 421,743
More than five years | 1,977,472 | 1,885,462
Revolving | 1,336,549 | 1,284,808
Revolving-Term | 43,139 | 33,970
Total | 7,981,007 | 7,742,958
Commercial loans | Commercial real estate |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 357,915 | 278,187
Year two | 313,459 | 289,081
Year three | 346,620 | 363,529
Year four | 374,846 | 415,621
Year five | 371,026 | 215,632
More than five years | 1,144,311 | 1,110,490
Revolving | 41,933 | 35,991
Revolving-Term | 0 | 0
Total | 2,950,110 | 2,708,531
Commercial loans | Commercial and industrial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 99,681 | 120,143
Year two | 101,512 | 148,100
Year three | 121,060 | 195,756
Year four | 158,522 | 152,971
Year five | 102,950 | 31,312
More than five years | 181,586 | 197,426
Revolving | 510,674 | 505,929
Revolving-Term | 0 | 0
Total | 1,275,985 | 1,351,637
Commercial loans | Commercial construction |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 117,262 | 119,355
Year two | 108,723 | 121,816
Year three | 51,523 | 73,851
Year four | 18,783 | 14,911
Year five | 2,535 | 884
More than five years | 1,315 | 2,139
Revolving | 6,871 | 8,310
Revolving-Term | 0 | 0
Total | 307,012 | 341,266
Commercial loans | Business banking |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 144,317 | 149,624
Year two | 133,625 | 233,041
Year three | 212,579 | 226,654
Year four | 206,807 | 177,683
Year five | 165,687 | 76,643
More than five years | 358,287 | 345,327
Revolving | 93,939 | 92,981
Revolving-Term | 1,105 | 1,305
Total | 1,316,346 | 1,303,258
Consumer loans | Consumer real estate |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 126,397 | 217,250
Year two | 224,897 | 335,763
Year three | 307,586 | 324,389
Year four | 311,823 | 133,347
Year five | 121,497 | 95,504
More than five years | 290,644 | 229,462
Revolving | 611,729 | 570,558
Revolving-Term | 34,381 | 27,236
Total | 2,028,954 | 1,933,509
Consumer loans | Other consumer |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 5,703 | 8,456
Year two | 5,870 | 6,849
Year three | 4,532 | 7,349
Year four | 4,597 | 3,249
Year five | 1,513 | 1,768
More than five years | 1,329 | 618
Revolving | 71,403 | 71,039
Revolving-Term | 7,653 | 5,429
Total | $ 102,600 | $ 104,757

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