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Loans and Leases and the Allowance for Credit Losses - Schedule of Amortized Cost Basis of Loans and Leases by Credit Quality Indicator, Loan Class, and Year of Origination (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023
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Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | $ 1,068,933 | $ 1,945,030
Fiscal Year Before Latest Fiscal Year | 1,730,286 | 2,771,149
Two Years Before Latest Fiscal Year | 2,576,796 | 2,481,049
Three Years Before Latest Fiscal Year | 2,194,862 | 1,679,428
Four Years Before Latest Fiscal Year | 1,574,833 | 674,605
Prior | 2,095,832 | 1,653,267
Revolving Loans | 2,622,751 | 2,712,450
Revolving Loans Converted to Term Loans | 54,290 | 48,048
Total Loans and Leases | 13,918,583 | 13,965,026
Commercial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 645,361 | 1,294,406
Fiscal Year Before Latest Fiscal Year | 1,165,607 | 1,530,449
Two Years Before Latest Fiscal Year | 1,471,326 | 988,303
Three Years Before Latest Fiscal Year | 825,192 | 624,175
Four Years Before Latest Fiscal Year | 588,485 | 308,049
Prior | 754,004 | 537,667
Revolving Loans | 479,788 | 493,974
Revolving Loans Converted to Term Loans | 311 | 463
Total Loans and Leases | 5,930,074 | 5,777,486
Commercial | Commercial and Industrial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 286,753 | 382,033
Fiscal Year Before Latest Fiscal Year | 309,268 | 305,543
Two Years Before Latest Fiscal Year | 249,807 | 238,214
Three Years Before Latest Fiscal Year | 159,633 | 155,200
Four Years Before Latest Fiscal Year | 142,694 | 41,353
Prior | 99,277 | 86,988
Revolving Loans | 427,604 | 442,905
Revolving Loans Converted to Term Loans | 311 | 463
Total Loans and Leases | 1,675,347 | 1,652,699
Commercial | Commercial and Industrial | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 285,962 | 319,451
Fiscal Year Before Latest Fiscal Year | 292,777 | 294,142
Two Years Before Latest Fiscal Year | 245,738 | 229,286
Three Years Before Latest Fiscal Year | 154,663 | 148,575
Four Years Before Latest Fiscal Year | 136,087 | 40,696
Prior | 90,848 | 77,789
Revolving Loans | 366,971 | 380,524
Revolving Loans Converted to Term Loans | 304 | 450
Total Loans and Leases | 1,573,350 | 1,490,913
Commercial | Commercial and Industrial | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 485 | 50,792
Fiscal Year Before Latest Fiscal Year | 380 | 5,555
Two Years Before Latest Fiscal Year | 0 | 0
Three Years Before Latest Fiscal Year | 0 | 0
Four Years Before Latest Fiscal Year | 0 | 657
Prior | 0 | 0
Revolving Loans | 43,129 | 39,278
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 43,994 | 96,282
Commercial | Commercial and Industrial | Classified |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 306 | 11,790
Fiscal Year Before Latest Fiscal Year | 16,111 | 5,846
Two Years Before Latest Fiscal Year | 4,069 | 8,928
Three Years Before Latest Fiscal Year | 4,970 | 6,625
Four Years Before Latest Fiscal Year | 6,607 | 0
Prior | 8,429 | 9,199
Revolving Loans | 17,504 | 23,103
Revolving Loans Converted to Term Loans | 7 | 13
Total Loans and Leases | 58,003 | 65,504
Commercial | Paycheck Protection Program |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 0 | 0
Fiscal Year Before Latest Fiscal Year | 0 | 0
Two Years Before Latest Fiscal Year | 0 | 2,199
Three Years Before Latest Fiscal Year | 579 | 9,170
Four Years Before Latest Fiscal Year | 5,767 | 0
Prior | 0 | 0
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 6,346 | 11,369
Commercial | Paycheck Protection Program | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 0 | 0
Fiscal Year Before Latest Fiscal Year | 0 | 0
Two Years Before Latest Fiscal Year | 0 | 2,199
Three Years Before Latest Fiscal Year | 579 | 9,170
Four Years Before Latest Fiscal Year | 5,767 | 0
Prior | 0 | 0
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 6,346 | 11,369
Commercial | Commercial Mortgage |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 264,931 | 824,743
Fiscal Year Before Latest Fiscal Year | 720,117 | 1,062,263
Two Years Before Latest Fiscal Year | 1,108,545 | 682,982
Three Years Before Latest Fiscal Year | 652,915 | 449,883
Four Years Before Latest Fiscal Year | 432,586 | 245,302
Prior | 645,063 | 442,551
Revolving Loans | 44,409 | 41,292
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 3,868,566 | 3,749,016
Commercial | Commercial Mortgage | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 196,564 | 788,558
Fiscal Year Before Latest Fiscal Year | 655,229 | 1,043,472
Two Years Before Latest Fiscal Year | 1,081,869 | 679,258
Three Years Before Latest Fiscal Year | 646,371 | 432,896
Four Years Before Latest Fiscal Year | 409,854 | 244,767
Prior | 610,725 | 419,225
Revolving Loans | 44,409 | 41,292
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 3,645,021 | 3,649,468
Commercial | Commercial Mortgage | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 32,508 | 30,356
Fiscal Year Before Latest Fiscal Year | 47,868 | 18,636
Two Years Before Latest Fiscal Year | 1,932 | 0
Three Years Before Latest Fiscal Year | 3,377 | 3,875
Four Years Before Latest Fiscal Year | 2,948 | 0
Prior | 15,818 | 9,153
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 104,451 | 62,020
Commercial | Commercial Mortgage | Classified |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 35,859 | 5,829
Fiscal Year Before Latest Fiscal Year | 17,020 | 155
Two Years Before Latest Fiscal Year | 24,744 | 3,724
Three Years Before Latest Fiscal Year | 3,167 | 13,112
Four Years Before Latest Fiscal Year | 19,784 | 535
Prior | 18,520 | 14,173
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 119,094 | 37,528
Commercial | Construction |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 78,889 | 77,163
Fiscal Year Before Latest Fiscal Year | 127,136 | 149,183
Two Years Before Latest Fiscal Year | 102,669 | 50,996
Three Years Before Latest Fiscal Year | 1,390 | 1,335
Four Years Before Latest Fiscal Year | 1,291 | 16,009
Prior | 0 | 0
Revolving Loans | 7,775 | 9,777
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 319,150 | 304,463
Commercial | Construction | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 78,889 | 77,163
Fiscal Year Before Latest Fiscal Year | 127,136 | 149,183
Two Years Before Latest Fiscal Year | 100,125 | 50,996
Three Years Before Latest Fiscal Year | 1,390 | 0
Four Years Before Latest Fiscal Year | 1,291 | 16,009
Prior | 0 | 0
Revolving Loans | 7,775 | 9,777
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 316,606 | 303,128
Commercial | Construction | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year |  | 0
Fiscal Year Before Latest Fiscal Year |  | 0
Two Years Before Latest Fiscal Year |  | 0
Three Years Before Latest Fiscal Year |  | 1,335
Four Years Before Latest Fiscal Year |  | 0
Prior |  | 0
Revolving Loans |  | 0
Revolving Loans Converted to Term Loans |  | 0
Total Loans and Leases |  | 1,335
Commercial | Construction | Classified |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 0 |
Fiscal Year Before Latest Fiscal Year | 0 |
Two Years Before Latest Fiscal Year | 2,544 |
Three Years Before Latest Fiscal Year | 0 |
Four Years Before Latest Fiscal Year | 0 |
Prior | 0 |
Revolving Loans | 0 |
Revolving Loans Converted to Term Loans | 0 |
Total Loans and Leases | 2,544 |
Commercial | Lease Financing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 14,788 | 10,467
Fiscal Year Before Latest Fiscal Year | 9,086 | 13,460
Two Years Before Latest Fiscal Year | 10,305 | 13,912
Three Years Before Latest Fiscal Year | 10,675 | 8,587
Four Years Before Latest Fiscal Year | 6,147 | 5,385
Prior | 9,664 | 8,128
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 60,665 | 59,939
Commercial | Lease Financing | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 14,788 | 9,867
Fiscal Year Before Latest Fiscal Year | 8,567 | 13,409
Two Years Before Latest Fiscal Year | 10,265 | 13,795
Three Years Before Latest Fiscal Year | 10,585 | 8,493
Four Years Before Latest Fiscal Year | 6,078 | 5,385
Prior | 9,255 | 7,650
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 59,538 | 58,599
Commercial | Lease Financing | Classified |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 0 | 600
Fiscal Year Before Latest Fiscal Year | 519 | 51
Two Years Before Latest Fiscal Year | 40 | 117
Three Years Before Latest Fiscal Year | 90 | 94
Four Years Before Latest Fiscal Year | 69 | 0
Prior | 409 | 478
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 1,127 | 1,340
Consumer |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 423,572 | 650,624
Fiscal Year Before Latest Fiscal Year | 564,679 | 1,240,700
Two Years Before Latest Fiscal Year | 1,105,470 | 1,492,746
Three Years Before Latest Fiscal Year | 1,369,670 | 1,055,253
Four Years Before Latest Fiscal Year | 986,348 | 366,556
Prior | 1,341,828 | 1,115,600
Revolving Loans | 2,142,963 | 2,218,476
Revolving Loans Converted to Term Loans | 53,979 | 47,585
Total Loans and Leases | 7,988,509 | 8,187,540
Consumer | Residential Mortgage |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 165,448 | 297,532
Fiscal Year Before Latest Fiscal Year | 278,126 | 796,979
Two Years Before Latest Fiscal Year | 765,993 | 1,250,343
Three Years Before Latest Fiscal Year | 1,201,573 | 977,377
Four Years Before Latest Fiscal Year | 938,184 | 303,098
Prior | 1,273,353 | 1,058,842
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 4,622,677 | 4,684,171
Consumer | Residential Mortgage | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 165,448 | 297,532
Fiscal Year Before Latest Fiscal Year | 278,126 | 796,979
Two Years Before Latest Fiscal Year | 765,135 | 1,249,917
Three Years Before Latest Fiscal Year | 1,201,147 | 977,377
Four Years Before Latest Fiscal Year | 937,449 | 303,098
Prior | 1,271,855 | 1,057,267
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 4,619,160 | 4,682,170
Consumer | Residential Mortgage | Classified |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 0 | 0
Fiscal Year Before Latest Fiscal Year | 0 | 0
Two Years Before Latest Fiscal Year | 858 | 426
Three Years Before Latest Fiscal Year | 426 | 0
Four Years Before Latest Fiscal Year | 735 | 0
Prior | 1,498 | 1,575
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 3,517 | 2,001
Consumer | Home Equity Loan |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 0 | 0
Fiscal Year Before Latest Fiscal Year | 0 | 0
Two Years Before Latest Fiscal Year | 0 | 0
Three Years Before Latest Fiscal Year | 0 | 0
Four Years Before Latest Fiscal Year | 0 | 0
Prior | 41 | 43
Revolving Loans | 2,141,824 | 2,217,199
Revolving Loans Converted to Term Loans | 53,979 | 47,585
Total Loans and Leases | 2,195,844 | 2,264,827
Consumer | Home Equity Loan | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 0 | 0
Fiscal Year Before Latest Fiscal Year | 0 | 0
Two Years Before Latest Fiscal Year | 0 | 0
Three Years Before Latest Fiscal Year | 0 | 0
Four Years Before Latest Fiscal Year | 0 | 0
Prior | 41 | 43
Revolving Loans | 2,139,055 | 2,215,970
Revolving Loans Converted to Term Loans | 53,491 | 46,794
Total Loans and Leases | 2,192,587 | 2,262,807
Consumer | Home Equity Loan | Classified |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 0 | 0
Fiscal Year Before Latest Fiscal Year | 0 | 0
Two Years Before Latest Fiscal Year | 0 | 0
Three Years Before Latest Fiscal Year | 0 | 0
Four Years Before Latest Fiscal Year | 0 | 0
Prior | 0 | 0
Revolving Loans | 2,769 | 1,229
Revolving Loans Converted to Term Loans | 488 | 791
Total Loans and Leases | 3,257 | 2,020
Consumer | Automobile |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 166,456 | 250,464
Fiscal Year Before Latest Fiscal Year | 204,396 | 302,076
Two Years Before Latest Fiscal Year | 232,395 | 149,926
Three Years Before Latest Fiscal Year | 107,413 | 64,780
Four Years Before Latest Fiscal Year | 41,432 | 46,468
Prior | 34,818 | 24,116
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 786,910 | 837,830
Consumer | Automobile | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 166,406 | 250,380
Fiscal Year Before Latest Fiscal Year | 204,222 | 301,968
Two Years Before Latest Fiscal Year | 232,226 | 149,915
Three Years Before Latest Fiscal Year | 107,309 | 64,734
Four Years Before Latest Fiscal Year | 41,428 | 46,396
Prior | 34,739 | 24,038
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 786,330 | 837,431
Consumer | Automobile | Classified |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 50 | 84
Fiscal Year Before Latest Fiscal Year | 174 | 108
Two Years Before Latest Fiscal Year | 169 | 11
Three Years Before Latest Fiscal Year | 104 | 46
Four Years Before Latest Fiscal Year | 4 | 72
Prior | 79 | 78
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 580 | 399
Consumer | Other Loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 91,668 | 102,628
Fiscal Year Before Latest Fiscal Year | 82,157 | 141,645
Two Years Before Latest Fiscal Year | 107,082 | 92,477
Three Years Before Latest Fiscal Year | 60,684 | 13,096
Four Years Before Latest Fiscal Year | 6,732 | 16,990
Prior | 33,616 | 32,599
Revolving Loans | 1,139 | 1,277
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 383,078 | 400,712
Consumer | Other Loans | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 91,624 | 102,563
Fiscal Year Before Latest Fiscal Year | 82,046 | 141,421
Two Years Before Latest Fiscal Year | 106,876 | 92,312
Three Years Before Latest Fiscal Year | 60,569 | 13,074
Four Years Before Latest Fiscal Year | 6,706 | 16,897
Prior | 33,564 | 32,519
Revolving Loans | 1,139 | 1,277
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 382,524 | 400,063
Consumer | Other Loans | Classified |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 44 | 65
Fiscal Year Before Latest Fiscal Year | 111 | 224
Two Years Before Latest Fiscal Year | 206 | 165
Three Years Before Latest Fiscal Year | 115 | 22
Four Years Before Latest Fiscal Year | 26 | 93
Prior | 52 | 80
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | $ 554 | $ 649

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