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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 | Mar. 31, 2024 | Dec. 31, 2023
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Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | $ 399,898 | $ 1,945,030
Fiscal Year Before Latest Fiscal Year | 1,807,952 | 2,771,149
Two Years Before Latest Fiscal Year | 2,639,776 | 2,481,049
Three Years Before Latest Fiscal Year | 2,385,677 | 1,679,428
Four Years Before Latest Fiscal Year | 1,638,060 | 674,605
Prior | 2,218,730 | 1,653,267
Revolving Loans | 2,713,577 | 2,712,450
Revolving Loans Converted to Term Loans | 50,167 | 48,048
Total Loans and Leases | 13,853,837 | 13,965,026
Commercial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 282,138 | 1,294,406
Fiscal Year Before Latest Fiscal Year | 1,184,413 | 1,530,449
Two Years Before Latest Fiscal Year | 1,447,633 | 988,303
Three Years Before Latest Fiscal Year | 938,307 | 624,175
Four Years Before Latest Fiscal Year | 609,842 | 308,049
Prior | 791,167 | 537,667
Revolving Loans | 521,706 | 493,974
Revolving Loans Converted to Term Loans | 371 | 463
Total Loans and Leases | 5,775,577 | 5,777,486
Commercial | Commercial and Industrial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 117,722 | 382,033
Fiscal Year Before Latest Fiscal Year | 335,593 | 305,543
Two Years Before Latest Fiscal Year | 283,897 | 238,214
Three Years Before Latest Fiscal Year | 211,751 | 155,200
Four Years Before Latest Fiscal Year | 148,868 | 41,353
Prior | 108,387 | 86,988
Revolving Loans | 462,893 | 442,905
Revolving Loans Converted to Term Loans | 371 | 463
Total Loans and Leases | 1,669,482 | 1,652,699
Commercial | Commercial and Industrial | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 117,709 | 319,451
Fiscal Year Before Latest Fiscal Year | 324,140 | 294,142
Two Years Before Latest Fiscal Year | 277,302 | 229,286
Three Years Before Latest Fiscal Year | 202,960 | 148,575
Four Years Before Latest Fiscal Year | 142,257 | 40,696
Prior | 99,409 | 77,789
Revolving Loans | 397,661 | 380,524
Revolving Loans Converted to Term Loans | 360 | 450
Total Loans and Leases | 1,561,798 | 1,490,913
Commercial | Commercial and Industrial | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 0 | 50,792
Fiscal Year Before Latest Fiscal Year | 58 | 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 | 45,184 | 39,278
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 45,242 | 96,282
Commercial | Commercial and Industrial | Classified |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 13 | 11,790
Fiscal Year Before Latest Fiscal Year | 11,395 | 5,846
Two Years Before Latest Fiscal Year | 6,595 | 8,928
Three Years Before Latest Fiscal Year | 8,791 | 6,625
Four Years Before Latest Fiscal Year | 6,611 | 0
Prior | 8,978 | 9,199
Revolving Loans | 20,048 | 23,103
Revolving Loans Converted to Term Loans | 11 | 13
Total Loans and Leases | 62,442 | 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 | 1,951 | 9,170
Four Years Before Latest Fiscal Year | 8,226 | 0
Prior | 0 | 0
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 10,177 | 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 | 1,951 | 9,170
Four Years Before Latest Fiscal Year | 8,226 | 0
Prior | 0 | 0
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 10,177 | 11,369
Commercial | Commercial Mortgage |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 117,532 | 824,743
Fiscal Year Before Latest Fiscal Year | 754,060 | 1,062,263
Two Years Before Latest Fiscal Year | 1,022,631 | 682,982
Three Years Before Latest Fiscal Year | 680,799 | 449,883
Four Years Before Latest Fiscal Year | 443,627 | 245,302
Prior | 654,736 | 442,551
Revolving Loans | 41,647 | 41,292
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 3,715,032 | 3,749,016
Commercial | Commercial Mortgage | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 117,064 | 788,558
Fiscal Year Before Latest Fiscal Year | 683,702 | 1,043,472
Two Years Before Latest Fiscal Year | 1,001,935 | 679,258
Three Years Before Latest Fiscal Year | 661,193 | 432,896
Four Years Before Latest Fiscal Year | 424,648 | 244,767
Prior | 630,355 | 419,225
Revolving Loans | 41,647 | 41,292
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 3,560,544 | 3,649,468
Commercial | Commercial Mortgage | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 0 | 30,356
Fiscal Year Before Latest Fiscal Year | 65,190 | 18,636
Two Years Before Latest Fiscal Year | 1,950 | 0
Three Years Before Latest Fiscal Year | 13,684 | 3,875
Four Years Before Latest Fiscal Year | 0 | 0
Prior | 11,066 | 9,153
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 91,890 | 62,020
Commercial | Commercial Mortgage | Classified |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 468 | 5,829
Fiscal Year Before Latest Fiscal Year | 5,168 | 155
Two Years Before Latest Fiscal Year | 18,746 | 3,724
Three Years Before Latest Fiscal Year | 5,922 | 13,112
Four Years Before Latest Fiscal Year | 18,979 | 535
Prior | 13,315 | 14,173
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 62,598 | 37,528
Commercial | Construction |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 43,335 | 77,163
Fiscal Year Before Latest Fiscal Year | 84,894 | 149,183
Two Years Before Latest Fiscal Year | 129,514 | 50,996
Three Years Before Latest Fiscal Year | 30,921 | 1,335
Four Years Before Latest Fiscal Year | 1,324 | 16,009
Prior | 15,915 | 0
Revolving Loans | 17,166 | 9,777
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 323,069 | 304,463
Commercial | Construction | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 43,335 | 77,163
Fiscal Year Before Latest Fiscal Year | 84,894 | 149,183
Two Years Before Latest Fiscal Year | 127,090 | 50,996
Three Years Before Latest Fiscal Year | 30,921 | 0
Four Years Before Latest Fiscal Year | 0 | 16,009
Prior | 15,915 | 0
Revolving Loans | 17,166 | 9,777
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 319,321 | 303,128
Commercial | Construction | Special Mention |  |
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 | 1,335
Four Years Before Latest Fiscal Year | 1,324 | 0
Prior | 0 | 0
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 1,324 | 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 | 2,424 |
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 | 2,424 |
Commercial | Lease Financing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 3,549 | 10,467
Fiscal Year Before Latest Fiscal Year | 9,866 | 13,460
Two Years Before Latest Fiscal Year | 11,591 | 13,912
Three Years Before Latest Fiscal Year | 12,885 | 8,587
Four Years Before Latest Fiscal Year | 7,797 | 5,385
Prior | 12,129 | 8,128
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 57,817 | 59,939
Commercial | Lease Financing | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 3,549 | 9,867
Fiscal Year Before Latest Fiscal Year | 9,292 | 13,409
Two Years Before Latest Fiscal Year | 11,544 | 13,795
Three Years Before Latest Fiscal Year | 12,776 | 8,493
Four Years Before Latest Fiscal Year | 7,710 | 5,385
Prior | 11,674 | 7,650
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 56,545 | 58,599
Commercial | Lease Financing | Classified |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 0 | 600
Fiscal Year Before Latest Fiscal Year | 574 | 51
Two Years Before Latest Fiscal Year | 47 | 117
Three Years Before Latest Fiscal Year | 109 | 94
Four Years Before Latest Fiscal Year | 87 | 0
Prior | 455 | 478
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 1,272 | 1,340
Consumer |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 117,760 | 650,624
Fiscal Year Before Latest Fiscal Year | 623,539 | 1,240,700
Two Years Before Latest Fiscal Year | 1,192,143 | 1,492,746
Three Years Before Latest Fiscal Year | 1,447,370 | 1,055,253
Four Years Before Latest Fiscal Year | 1,028,218 | 366,556
Prior | 1,427,563 | 1,115,600
Revolving Loans | 2,191,871 | 2,218,476
Revolving Loans Converted to Term Loans | 49,796 | 47,585
Total Loans and Leases | 8,078,260 | 8,187,540
Consumer | Residential Mortgage |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 25,834 | 297,532
Fiscal Year Before Latest Fiscal Year | 289,895 | 796,979
Two Years Before Latest Fiscal Year | 782,706 | 1,250,343
Three Years Before Latest Fiscal Year | 1,230,394 | 977,377
Four Years Before Latest Fiscal Year | 961,293 | 303,098
Prior | 1,326,778 | 1,058,842
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 4,616,900 | 4,684,171
Consumer | Residential Mortgage | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 25,834 | 297,532
Fiscal Year Before Latest Fiscal Year | 289,895 | 796,979
Two Years Before Latest Fiscal Year | 782,706 | 1,249,917
Three Years Before Latest Fiscal Year | 1,229,968 | 977,377
Four Years Before Latest Fiscal Year | 960,845 | 303,098
Prior | 1,325,079 | 1,057,267
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 4,614,327 | 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 | 0 | 426
Three Years Before Latest Fiscal Year | 426 | 0
Four Years Before Latest Fiscal Year | 448 | 0
Prior | 1,699 | 1,575
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 2,573 | 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 | 42 | 43
Revolving Loans | 2,191,108 | 2,217,199
Revolving Loans Converted to Term Loans | 49,796 | 47,585
Total Loans and Leases | 2,240,946 | 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 | 42 | 43
Revolving Loans | 2,190,048 | 2,215,970
Revolving Loans Converted to Term Loans | 49,092 | 46,794
Total Loans and Leases | 2,239,182 | 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 | 1,060 | 1,229
Revolving Loans Converted to Term Loans | 704 | 791
Total Loans and Leases | 1,764 | 2,020
Consumer | Automobile |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 58,778 | 250,464
Fiscal Year Before Latest Fiscal Year | 240,075 | 302,076
Two Years Before Latest Fiscal Year | 278,566 | 149,926
Three Years Before Latest Fiscal Year | 135,680 | 64,780
Four Years Before Latest Fiscal Year | 56,293 | 46,468
Prior | 56,462 | 24,116
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 825,854 | 837,830
Consumer | Automobile | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 58,778 | 250,380
Fiscal Year Before Latest Fiscal Year | 240,008 | 301,968
Two Years Before Latest Fiscal Year | 278,365 | 149,915
Three Years Before Latest Fiscal Year | 135,597 | 64,734
Four Years Before Latest Fiscal Year | 56,266 | 46,396
Prior | 56,324 | 24,038
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 825,338 | 837,431
Consumer | Automobile | Classified |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 0 | 84
Fiscal Year Before Latest Fiscal Year | 67 | 108
Two Years Before Latest Fiscal Year | 201 | 11
Three Years Before Latest Fiscal Year | 83 | 46
Four Years Before Latest Fiscal Year | 27 | 72
Prior | 138 | 78
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 516 | 399
Consumer | Other Loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 33,148 | 102,628
Fiscal Year Before Latest Fiscal Year | 93,569 | 141,645
Two Years Before Latest Fiscal Year | 130,871 | 92,477
Three Years Before Latest Fiscal Year | 81,296 | 13,096
Four Years Before Latest Fiscal Year | 10,632 | 16,990
Prior | 44,281 | 32,599
Revolving Loans | 763 | 1,277
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 394,560 | 400,712
Consumer | Other Loans | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 33,148 | 102,563
Fiscal Year Before Latest Fiscal Year | 93,435 | 141,421
Two Years Before Latest Fiscal Year | 130,583 | 92,312
Three Years Before Latest Fiscal Year | 81,064 | 13,074
Four Years Before Latest Fiscal Year | 10,593 | 16,897
Prior | 44,101 | 32,519
Revolving Loans | 763 | 1,277
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 393,687 | 400,063
Consumer | Other Loans | Classified |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 0 | 65
Fiscal Year Before Latest Fiscal Year | 134 | 224
Two Years Before Latest Fiscal Year | 288 | 165
Three Years Before Latest Fiscal Year | 232 | 22
Four Years Before Latest Fiscal Year | 39 | 93
Prior | 180 | 80
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | $ 873 | $ 649

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