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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 | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | $ 1,117,436 | $ 1,271,764
Year two | 1,320,936 | 1,214,107
Year three | 1,094,225 | 586,544
Year four | 503,703 | 725,517
Year five | 645,502 | 449,759
More than five years | 1,650,211 | 1,528,088
Revolving | 1,292,135 | 1,381,517
Revolving-Term | 29,193 | 26,673
Total | 7,653,341 | 7,183,969
Accrual |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 1,117,436 | 1,271,764
Year two | 1,320,560 | 1,213,905
Year three | 1,094,056 | 585,892
Year four | 502,950 | 724,629
Year five | 640,393 | 448,121
More than five years | 1,635,979 | 1,513,912
Revolving | 1,291,683 | 1,380,980
Revolving-Term | 27,337 | 25,714
Total | 7,630,394 | 7,164,917
Nonaccrual |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 0 | 0
Year two | 376 | 202
Year three | 169 | 652
Year four | 753 | 888
Year five | 5,109 | 1,638
More than five years | 14,232 | 14,176
Revolving | 452 | 537
Revolving-Term | 1,856 | 959
Total | 22,947 | 19,052
Commercial Loans | Commercial real estate |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 276,677 | 292,732
Year two | 324,469 | 360,423
Year three | 439,308 | 269,049
Year four | 240,256 | 449,493
Year five | 419,371 | 261,941
More than five years | 926,636 | 883,535
Revolving | 32,418 | 21,666
Revolving-Term | 0 | 0
Total | 2,659,135 | 2,538,839
Commercial Loans | Commercial real estate | Accrual |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 276,677 | 292,732
Year two | 324,469 | 360,423
Year three | 439,308 | 269,049
Year four | 240,256 | 449,493
Year five | 419,371 | 261,941
More than five years | 920,316 | 876,435
Revolving | 32,418 | 21,666
Revolving-Term | 0 | 0
Total | 2,652,815 | 2,531,739
Commercial Loans | Commercial real estate | Nonaccrual |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 0 | 0
Year two | 0 | 0
Year three | 0 | 0
Year four | 0 | 0
Year five | 0 | 0
More than five years | 6,320 | 7,100
Revolving | 0 | 0
Revolving-Term | 0 | 0
Total | 6,320 | 7,100
Commercial Loans | Commercial and industrial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 171,861 | 253,696
Year two | 231,978 | 289,448
Year three | 210,636 | 88,544
Year four | 54,696 | 73,998
Year five | 52,858 | 65,911
More than five years | 193,905 | 147,273
Revolving | 520,249 | 591,522
Revolving-Term | 0 | 0
Total | 1,436,183 | 1,510,392
Commercial Loans | Commercial and industrial | Accrual |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 171,861 | 253,696
Year two | 231,978 | 289,448
Year three | 210,636 | 88,544
Year four | 54,696 | 73,998
Year five | 52,858 | 65,858
More than five years | 193,257 | 147,273
Revolving | 520,019 | 591,292
Revolving-Term | 0 | 0
Total | 1,435,305 | 1,510,109
Commercial Loans | Commercial and industrial | Nonaccrual |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 0 | 0
Year two | 0 | 0
Year three | 0 | 0
Year four | 0 | 0
Year five | 0 | 53
More than five years | 648 | 0
Revolving | 230 | 230
Revolving-Term | 0 | 0
Total | 878 | 283
Commercial Loans | Commercial construction |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 75,596 | 120,655
Year two | 154,456 | 170,691
Year three | 82,313 | 40,762
Year four | 14,845 | 14,442
Year five | 4,727 | 3,953
More than five years | 4,438 | 4,176
Revolving | 14,208 | 27,284
Revolving-Term | 0 | 0
Total | 350,583 | 381,963
Commercial Loans | Commercial construction | Accrual |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 75,596 | 120,655
Year two | 154,456 | 170,691
Year three | 82,313 | 40,762
Year four | 14,845 | 14,442
Year five | 151 | 3,953
More than five years | 4,054 | 3,792
Revolving | 14,208 | 27,284
Revolving-Term | 0 | 0
Total | 345,623 | 381,579
Commercial Loans | Commercial construction | Nonaccrual |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 0 | 0
Year two | 0 | 0
Year three | 0 | 0
Year four | 0 | 0
Year five | 4,576 | 0
More than five years | 384 | 384
Revolving | 0 | 0
Revolving-Term | 0 | 0
Total | 4,960 | 384
Commercial Loans | Business banking |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 270,129 | 287,679
Year two | 262,606 | 233,723
Year three | 207,611 | 91,149
Year four | 88,018 | 109,731
Year five | 99,574 | 84,889
More than five years | 334,766 | 292,211
Revolving | 96,754 | 105,271
Revolving-Term | 1,307 | 1,291
Total | 1,360,765 | 1,205,944
Commercial Loans | Business banking | Accrual |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 270,129 | 287,679
Year two | 262,606 | 233,656
Year three | 207,611 | 91,149
Year four | 87,979 | 109,479
Year five | 99,354 | 83,689
More than five years | 330,902 | 289,435
Revolving | 96,754 | 105,172
Revolving-Term | 1,283 | 1,195
Total | 1,356,618 | 1,201,454
Commercial Loans | Business banking | Nonaccrual |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 0 | 0
Year two | 0 | 67
Year three | 0 | 0
Year four | 39 | 252
Year five | 220 | 1,200
More than five years | 3,864 | 2,776
Revolving | 0 | 99
Revolving-Term | 24 | 96
Total | 4,147 | 4,490
Consumer Loans | Consumer real estate |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 311,887 | 296,948
Year two | 335,462 | 149,003
Year three | 147,850 | 91,613
Year four | 102,041 | 74,583
Year five | 67,890 | 32,031
More than five years | 189,794 | 200,169
Revolving | 552,080 | 553,649
Revolving-Term | 24,774 | 23,957
Total | 1,731,778 | 1,421,953
Consumer Loans | Consumer real estate | Accrual |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 311,887 | 296,948
Year two | 335,086 | 148,868
Year three | 147,689 | 91,085
Year four | 101,518 | 73,947
Year five | 67,577 | 31,646
More than five years | 186,909 | 196,384
Revolving | 551,858 | 553,441
Revolving-Term | 22,942 | 23,108
Total | 1,725,466 | 1,415,427
Consumer Loans | Consumer real estate | Nonaccrual |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 0 | 0
Year two | 376 | 135
Year three | 161 | 528
Year four | 523 | 636
Year five | 313 | 385
More than five years | 2,885 | 3,785
Revolving | 222 | 208
Revolving-Term | 1,832 | 849
Total | 6,312 | 6,526
Consumer Loans | Other consumer |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 11,286 | 20,054
Year two | 11,965 | 10,819
Year three | 6,507 | 5,427
Year four | 3,847 | 3,270
Year five | 1,082 | 1,034
More than five years | 672 | 724
Revolving | 76,426 | 82,125
Revolving-Term | 3,112 | 1,425
Total | 114,897 | 124,878
Consumer Loans | Other consumer | Accrual |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 11,286 | 20,054
Year two | 11,965 | 10,819
Year three | 6,499 | 5,303
Year four | 3,656 | 3,270
Year five | 1,082 | 1,034
More than five years | 541 | 593
Revolving | 76,426 | 82,125
Revolving-Term | 3,112 | 1,411
Total | 114,567 | 124,609
Consumer Loans | Other consumer | Nonaccrual |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 0 | 0
Year two | 0 | 0
Year three | 8 | 124
Year four | 191 | 0
Year five | 0 | 0
More than five years | 131 | 131
Revolving | 0 | 0
Revolving-Term | 0 | 14
Total | $ 330 | $ 269

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