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Allowance for Credit Losses - Loan Balances by Year of Origination and Internally Assigned Risk Rating (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
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Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | $ 1,271,764 | $ 1,380,130
Year two | 1,214,107 | 772,783
Year three | 586,544 | 961,071
Year four | 725,517 | 606,970
Year five | 449,759 | 431,724
More than five years | 1,528,088 | 1,591,979
Revolving | 1,381,517 | 1,226,925
Revolving-Term | 26,673 | 28,408
Total | 7,183,969 | 6,999,990
Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 1,271,177 | 1,379,856
Year two | 1,177,280 | 768,961
Year three | 581,879 | 879,574
Year four | 677,616 | 576,166
Year five | 406,053 | 370,013
More than five years | 1,313,942 | 1,361,826
Revolving | 1,348,200 | 1,209,363
Revolving-Term | 23,596 | 24,964
Total | 6,799,743 | 6,570,723
Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 0 | 150
Year two | 36,547 | 151
Year three | 146 | 42,832
Year four | 26,394 | 10,312
Year five | 24,765 | 41,574
More than five years | 113,071 | 88,094
Revolving | 20,073 | 9,047
Revolving-Term | 95 | 111
Total | 221,091 | 192,271
Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 587 | 124
Year two | 280 | 3,671
Year three | 4,519 | 36,888
Year four | 21,507 | 20,492
Year five | 18,941 | 20,137
More than five years | 101,043 | 142,059
Revolving | 13,244 | 8,515
Revolving-Term | 2,982 | 3,333
Total | 163,103 | 235,219
Doubtful |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 0 | 0
Year two | 0 | 0
Year three | 0 | 1,777
Year four | 0 | 0
Year five | 0 | 0
More than five years | 32 | 0
Revolving | 0 | 0
Revolving-Term | 0 | 0
Total | 32 | 1,777
Commercial | Commercial real estate |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 292,732 | 385,347
Year two | 360,423 | 317,359
Year three | 269,049 | 468,720
Year four | 449,493 | 334,743
Year five | 261,941 | 266,019
More than five years | 883,535 | 881,391
Revolving | 21,666 | 36,948
Revolving-Term | 0 | 0
Total | 2,538,839 | 2,690,528
Commercial | Commercial and industrial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 253,696 | 437,529
Year two | 289,448 | 126,371
Year three | 88,544 | 134,417
Year four | 73,998 | 86,912
Year five | 65,911 | 41,422
More than five years | 147,273 | 136,470
Revolving | 591,522 | 550,402
Revolving-Term | 0 | 0
Total | 1,510,392 | 1,513,523
Commercial | Commercial construction |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 120,655 | 142,321
Year two | 170,691 | 110,562
Year three | 40,762 | 113,532
Year four | 14,442 | 16,838
Year five | 3,953 | 989
More than five years | 4,176 | 10,477
Revolving | 27,284 | 30,036
Revolving-Term | 0 | 0
Total | 381,963 | 424,755
Commercial | Business banking |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 287,679 | 257,409
Year two | 233,723 | 108,048
Year three | 91,149 | 144,976
Year four | 109,731 | 115,228
Year five | 84,889 | 81,889
More than five years | 292,211 | 318,735
Revolving | 105,271 | 108,230
Revolving-Term | 1,291 | 1,179
Total | 1,205,944 | 1,135,693
Commercial | Pass | Commercial real estate |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 292,732 | 385,347
Year two | 360,423 | 316,003
Year three | 267,743 | 412,191
Year four | 422,872 | 314,303
Year five | 227,006 | 213,019
More than five years | 704,600 | 698,992
Revolving | 21,666 | 35,448
Revolving-Term | 0 | 0
Total | 2,297,042 | 2,375,303
Commercial | Pass | Commercial and industrial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 253,324 | 437,483
Year two | 264,012 | 126,371
Year three | 88,544 | 115,359
Year four | 63,190 | 83,030
Year five | 62,874 | 37,176
More than five years | 138,250 | 132,182
Revolving | 559,777 | 536,554
Revolving-Term | 0 | 0
Total | 1,429,971 | 1,468,155
Commercial | Pass | Commercial construction |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 120,655 | 142,321
Year two | 159,737 | 108,405
Year three | 40,762 | 111,512
Year four | 6,338 | 16,838
Year five | 3,953 | 989
More than five years | 2,297 | 3,539
Revolving | 27,284 | 30,036
Revolving-Term | 0 | 0
Total | 361,026 | 413,640
Commercial | Pass | Business banking |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 287,520 | 257,264
Year two | 233,499 | 107,791
Year three | 87,926 | 141,411
Year four | 107,819 | 110,586
Year five | 80,549 | 79,187
More than five years | 276,843 | 293,215
Revolving | 104,354 | 107,093
Revolving-Term | 645 | 443
Total | 1,179,155 | 1,096,990
Commercial | Special Mention | Commercial real estate |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 0 | 0
Year two | 0 | 0
Year three | 0 | 37,786
Year four | 13,187 | 6,401
Year five | 20,090 | 40,445
More than five years | 101,112 | 75,938
Revolving | 0 | 0
Revolving-Term | 0 | 0
Total | 134,389 | 160,570
Commercial | Special Mention | Commercial and industrial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 0 | 46
Year two | 25,436 | 0
Year three | 0 | 3,060
Year four | 5,103 | 2,546
Year five | 1,885 | 72
More than five years | 7,132 | 832
Revolving | 19,280 | 8,887
Revolving-Term | 0 | 0
Total | 58,836 | 15,443
Commercial | Special Mention | Commercial construction |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 0 | 0
Year two | 10,954 | 0
Year three | 0 | 0
Year four | 8,104 | 0
Year five | 0 | 0
More than five years | 0 | 4,458
Revolving | 0 | 0
Revolving-Term | 0 | 0
Total | 19,058 | 4,458
Commercial | Special Mention | Business banking |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 0 | 104
Year two | 157 | 151
Year three | 146 | 1,986
Year four | 0 | 1,365
Year five | 2,790 | 1,057
More than five years | 3,945 | 5,929
Revolving | 793 | 160
Revolving-Term | 95 | 111
Total | 7,926 | 10,863
Commercial | Substandard | Commercial real estate |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 0 | 0
Year two | 0 | 1,356
Year three | 1,306 | 18,743
Year four | 13,434 | 14,039
Year five | 14,845 | 12,555
More than five years | 77,823 | 106,461
Revolving | 0 | 1,500
Revolving-Term | 0 | 0
Total | 107,408 | 154,654
Commercial | Substandard | Commercial and industrial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 372 | 0
Year two | 0 | 0
Year three | 0 | 14,221
Year four | 5,705 | 1,336
Year five | 1,152 | 4,174
More than five years | 1,891 | 3,456
Revolving | 12,465 | 4,961
Revolving-Term | 0 | 0
Total | 21,585 | 28,148
Commercial | Substandard | Commercial construction |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 0 | 0
Year two | 0 | 2,157
Year three | 0 | 2,020
Year four | 0 | 0
Year five | 0 | 0
More than five years | 1,879 | 2,480
Revolving | 0 | 0
Revolving-Term | 0 | 0
Total | 1,879 | 6,657
Commercial | Substandard | Business banking |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 159 | 41
Year two | 67 | 106
Year three | 3,077 | 1,579
Year four | 1,912 | 3,277
Year five | 1,550 | 1,645
More than five years | 11,391 | 19,591
Revolving | 124 | 977
Revolving-Term | 551 | 625
Total | 18,831 | 27,841
Commercial | Doubtful | Commercial real estate |  |
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 | 0 | 0
Revolving | 0 | 0
Revolving-Term | 0 | 0
Total | 0 | 0
Commercial | Doubtful | Commercial and industrial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 0 | 0
Year two | 0 | 0
Year three | 0 | 1,777
Year four | 0 | 0
Year five | 0 | 0
More than five years | 0 | 0
Revolving | 0 | 0
Revolving-Term | 0 | 0
Total | 0 | 1,777
Commercial | Doubtful | Commercial construction |  |
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 | 0 | 0
Revolving | 0 | 0
Revolving-Term | 0 | 0
Total | 0 | 0
Commercial | Doubtful | Business banking |  |
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 | 32 | 0
Revolving | 0 | 0
Revolving-Term | 0 | 0
Total | 32 | 0
Consumer | Consumer real estate |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 296,948 | 137,465
Year two | 149,003 | 100,995
Year three | 91,613 | 92,165
Year four | 74,583 | 50,156
Year five | 32,031 | 40,384
More than five years | 200,169 | 238,462
Revolving | 553,649 | 443,406
Revolving-Term | 23,957 | 24,552
Total | 1,421,953 | 1,127,585
Consumer | Other consumer |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 20,054 | 20,059
Year two | 10,819 | 9,448
Year three | 5,427 | 7,261
Year four | 3,270 | 3,093
Year five | 1,034 | 1,021
More than five years | 724 | 6,444
Revolving | 82,125 | 57,903
Revolving-Term | 1,425 | 2,677
Total | 124,878 | 107,906
Consumer | Pass | Consumer real estate |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 296,900 | 137,465
Year two | 148,790 | 100,995
Year three | 91,477 | 91,981
Year four | 74,155 | 48,531
Year five | 30,658 | 39,029
More than five years | 191,228 | 231,861
Revolving | 552,994 | 442,530
Revolving-Term | 21,547 | 23,391
Total | 1,407,749 | 1,115,783
Consumer | Pass | Other consumer |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 20,046 | 19,976
Year two | 10,819 | 9,396
Year three | 5,427 | 7,120
Year four | 3,242 | 2,878
Year five | 1,013 | 613
More than five years | 724 | 2,037
Revolving | 82,125 | 57,702
Revolving-Term | 1,404 | 1,130
Total | 124,800 | 100,852
Consumer | Special Mention | Consumer real estate |  |
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 | 882 | 937
Revolving | 0 | 0
Revolving-Term | 0 | 0
Total | 882 | 937
Consumer | Special Mention | Other consumer |  |
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 | 0 | 0
Revolving | 0 | 0
Revolving-Term | 0 | 0
Total | 0 | 0
Consumer | Substandard | Consumer real estate |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 48 | 0
Year two | 213 | 0
Year three | 136 | 184
Year four | 428 | 1,625
Year five | 1,373 | 1,355
More than five years | 8,059 | 5,664
Revolving | 655 | 876
Revolving-Term | 2,410 | 1,161
Total | 13,322 | 10,865
Consumer | Substandard | Other consumer |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 8 | 83
Year two | 0 | 52
Year three | 0 | 141
Year four | 28 | 215
Year five | 21 | 408
More than five years | 0 | 4,407
Revolving | 0 | 201
Revolving-Term | 21 | 1,547
Total | 78 | 7,054
Consumer | Doubtful | Consumer real estate |  |
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 | 0 | 0
Revolving | 0 | 0
Revolving-Term | 0 | 0
Total | 0 | 0
Consumer | Doubtful | Other consumer |  |
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 | 0 | 0
Revolving | 0 | 0
Revolving-Term | 0 | 0
Total | $ 0 | $ 0

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