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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, 2023 | Dec. 31, 2022
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Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | $ 1,696,524 | $ 3,141,436
Fiscal Year Before Latest Fiscal Year | 2,768,270 | 2,898,564
Two Years Before Latest Fiscal Year | 2,581,259 | 2,183,088
Three Years Before Latest Fiscal Year | 1,717,875 | 815,263
Four Years Before Latest Fiscal Year | 696,863 | 388,817
Prior | 1,710,919 | 1,647,925
Revolving Loans | 2,705,343 | 2,532,777
Revolving Loans Converted to Term Loans | 42,438 | 38,550
Total Loans and Leases | 13,919,491 | 13,646,420
Commercial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 1,150,061 | 1,722,502
Fiscal Year Before Latest Fiscal Year | 1,492,206 | 1,252,561
Two Years Before Latest Fiscal Year | 1,058,708 | 1,015,759
Three Years Before Latest Fiscal Year | 639,836 | 369,910
Four Years Before Latest Fiscal Year | 314,225 | 188,165
Prior | 563,997 | 593,643
Revolving Loans | 459,938 | 321,787
Revolving Loans Converted to Term Loans | 498 | 176
Total Loans and Leases | 5,679,469 | 5,464,503
Commercial | Commercial and Industrial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 332,112 | 368,316
Fiscal Year Before Latest Fiscal Year | 279,934 | 348,391
Two Years Before Latest Fiscal Year | 250,323 | 225,294
Three Years Before Latest Fiscal Year | 159,219 | 59,127
Four Years Before Latest Fiscal Year | 43,368 | 48,539
Prior | 90,389 | 78,265
Revolving Loans | 413,729 | 260,958
Revolving Loans Converted to Term Loans | 498 | 176
Total Loans and Leases | 1,569,572 | 1,389,066
Commercial | Commercial and Industrial | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 277,427 | 360,748
Fiscal Year Before Latest Fiscal Year | 271,993 | 348,300
Two Years Before Latest Fiscal Year | 242,363 | 224,264
Three Years Before Latest Fiscal Year | 152,581 | 59,127
Four Years Before Latest Fiscal Year | 42,673 | 46,799
Prior | 82,144 | 71,906
Revolving Loans | 369,945 | 257,349
Revolving Loans Converted to Term Loans | 483 | 155
Total Loans and Leases | 1,439,609 | 1,368,648
Commercial | Commercial and Industrial | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 42,774 | 273
Fiscal Year Before Latest Fiscal Year | 5,157 | 0
Two Years Before Latest Fiscal Year | 0 | 0
Three Years Before Latest Fiscal Year | 0 | 0
Four Years Before Latest Fiscal Year | 695 | 96
Prior | 0 | 92
Revolving Loans | 39,956 | 1,357
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 88,582 | 1,818
Commercial | Commercial and Industrial | Classified |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 11,911 | 7,295
Fiscal Year Before Latest Fiscal Year | 2,784 | 91
Two Years Before Latest Fiscal Year | 7,960 | 1,030
Three Years Before Latest Fiscal Year | 6,638 | 0
Four Years Before Latest Fiscal Year | 0 | 1,644
Prior | 8,245 | 6,267
Revolving Loans | 3,828 | 2,252
Revolving Loans Converted to Term Loans | 15 | 21
Total Loans and Leases | 41,381 | 18,600
Commercial | Paycheck Protection Program |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 0 | 0
Fiscal Year Before Latest Fiscal Year | 0 | 5,359
Two Years Before Latest Fiscal Year | 2,445 | 14,220
Three Years Before Latest Fiscal Year | 10,084 | 0
Four Years Before Latest Fiscal Year | 0 | 0
Prior | 0 | 0
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 12,529 | 19,579
Commercial | Paycheck Protection Program | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 0 | 0
Fiscal Year Before Latest Fiscal Year | 0 | 5,359
Two Years Before Latest Fiscal Year | 2,445 | 14,220
Three Years Before Latest Fiscal Year | 10,084 | 0
Four Years Before Latest Fiscal Year | 0 | 0
Prior | 0 | 0
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 12,529 | 19,579
Commercial | Commercial Mortgage |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 789,670 | 1,212,720
Fiscal Year Before Latest Fiscal Year | 1,066,158 | 810,996
Two Years Before Latest Fiscal Year | 715,136 | 727,704
Three Years Before Latest Fiscal Year | 458,451 | 284,177
Four Years Before Latest Fiscal Year | 247,969 | 132,537
Prior | 464,165 | 508,637
Revolving Loans | 42,790 | 48,771
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 3,784,339 | 3,725,542
Commercial | Commercial Mortgage | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 756,211 | 1,182,831
Fiscal Year Before Latest Fiscal Year | 1,004,342 | 771,375
Two Years Before Latest Fiscal Year | 713,794 | 691,054
Three Years Before Latest Fiscal Year | 441,404 | 283,553
Four Years Before Latest Fiscal Year | 247,429 | 131,055
Prior | 435,257 | 494,924
Revolving Loans | 42,790 | 48,771
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 3,641,227 | 3,603,563
Commercial | Commercial Mortgage | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 30,463 | 29,707
Fiscal Year Before Latest Fiscal Year | 61,654 | 37,657
Two Years Before Latest Fiscal Year | 0 | 28,105
Three Years Before Latest Fiscal Year | 3,908 | 0
Four Years Before Latest Fiscal Year | 307 | 1,482
Prior | 13,551 | 5,014
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 109,883 | 101,965
Commercial | Commercial Mortgage | Classified |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 2,996 | 182
Fiscal Year Before Latest Fiscal Year | 162 | 1,964
Two Years Before Latest Fiscal Year | 1,342 | 8,545
Three Years Before Latest Fiscal Year | 13,139 | 624
Four Years Before Latest Fiscal Year | 233 | 0
Prior | 15,357 | 8,699
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 33,229 | 20,014
Commercial | Construction |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 20,606 | 124,507
Fiscal Year Before Latest Fiscal Year | 132,155 | 69,992
Two Years Before Latest Fiscal Year | 76,109 | 37,133
Three Years Before Latest Fiscal Year | 2,820 | 16,838
Four Years Before Latest Fiscal Year | 16,101 | 0
Prior | 297 | 297
Revolving Loans | 3,419 | 12,058
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 251,507 | 260,825
Commercial | Construction | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 20,606 | 124,507
Fiscal Year Before Latest Fiscal Year | 132,155 | 69,992
Two Years Before Latest Fiscal Year | 76,109 | 37,133
Three Years Before Latest Fiscal Year | 2,820 | 16,838
Four Years Before Latest Fiscal Year | 16,101 | 0
Prior | 297 | 297
Revolving Loans | 3,419 | 12,058
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 251,507 | 260,825
Commercial | Lease Financing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 7,673 | 16,959
Fiscal Year Before Latest Fiscal Year | 13,959 | 17,823
Two Years Before Latest Fiscal Year | 14,695 | 11,408
Three Years Before Latest Fiscal Year | 9,262 | 9,768
Four Years Before Latest Fiscal Year | 6,787 | 7,089
Prior | 9,146 | 6,444
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 61,522 | 69,491
Commercial | Lease Financing | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 7,046 | 16,959
Fiscal Year Before Latest Fiscal Year | 13,905 | 17,823
Two Years Before Latest Fiscal Year | 14,570 | 11,408
Three Years Before Latest Fiscal Year | 9,160 | 9,768
Four Years Before Latest Fiscal Year | 6,787 | 6,379
Prior | 8,646 | 6,444
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 60,114 | 68,781
Commercial | Lease Financing | Classified |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 627 | 0
Fiscal Year Before Latest Fiscal Year | 54 | 0
Two Years Before Latest Fiscal Year | 125 | 0
Three Years Before Latest Fiscal Year | 102 | 0
Four Years Before Latest Fiscal Year | 0 | 710
Prior | 500 | 0
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 1,408 | 710
Consumer |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 546,463 | 1,418,934
Fiscal Year Before Latest Fiscal Year | 1,276,064 | 1,646,003
Two Years Before Latest Fiscal Year | 1,522,551 | 1,167,329
Three Years Before Latest Fiscal Year | 1,078,039 | 445,353
Four Years Before Latest Fiscal Year | 382,638 | 200,652
Prior | 1,146,922 | 1,054,282
Revolving Loans | 2,245,405 | 2,210,990
Revolving Loans Converted to Term Loans | 41,940 | 38,374
Total Loans and Leases | 8,240,022 | 8,181,917
Consumer | Residential Mortgage |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 267,172 | 827,909
Fiscal Year Before Latest Fiscal Year | 799,565 | 1,304,831
Two Years Before Latest Fiscal Year | 1,257,550 | 1,035,285
Three Years Before Latest Fiscal Year | 988,296 | 321,208
Four Years Before Latest Fiscal Year | 306,197 | 138,766
Prior | 1,080,360 | 1,025,073
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 4,699,140 | 4,653,072
Consumer | Residential Mortgage | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 267,172 | 827,909
Fiscal Year Before Latest Fiscal Year | 799,565 | 1,304,831
Two Years Before Latest Fiscal Year | 1,257,550 | 1,035,285
Three Years Before Latest Fiscal Year | 988,296 | 321,208
Four Years Before Latest Fiscal Year | 306,197 | 138,214
Prior | 1,078,785 | 1,023,841
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 4,697,565 | 4,651,288
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 | 0
Three Years Before Latest Fiscal Year | 0 | 0
Four Years Before Latest Fiscal Year | 0 | 552
Prior | 1,575 | 1,232
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 1,575 | 1,784
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 | 44 | 915
Revolving Loans | 2,243,990 | 2,187,703
Revolving Loans Converted to Term Loans | 41,940 | 37,332
Total Loans and Leases | 2,285,974 | 2,225,950
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 | 44 | 890
Revolving Loans | 2,242,699 | 2,186,598
Revolving Loans Converted to Term Loans | 40,870 | 36,114
Total Loans and Leases | 2,283,613 | 2,223,602
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 | 25
Revolving Loans | 1,291 | 1,105
Revolving Loans Converted to Term Loans | 1,070 | 1,218
Total Loans and Leases | 2,361 | 2,348
Consumer | Automobile |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 205,098 | 405,561
Fiscal Year Before Latest Fiscal Year | 326,113 | 216,299
Two Years Before Latest Fiscal Year | 164,863 | 100,631
Three Years Before Latest Fiscal Year | 73,290 | 84,095
Four Years Before Latest Fiscal Year | 55,202 | 45,393
Prior | 31,547 | 18,417
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 856,113 | 870,396
Consumer | Automobile | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 205,059 | 405,440
Fiscal Year Before Latest Fiscal Year | 326,054 | 216,039
Two Years Before Latest Fiscal Year | 164,714 | 100,608
Three Years Before Latest Fiscal Year | 73,234 | 84,052
Four Years Before Latest Fiscal Year | 55,196 | 45,301
Prior | 31,464 | 18,366
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 855,721 | 869,806
Consumer | Automobile | Classified |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 39 | 121
Fiscal Year Before Latest Fiscal Year | 59 | 260
Two Years Before Latest Fiscal Year | 149 | 23
Three Years Before Latest Fiscal Year | 56 | 43
Four Years Before Latest Fiscal Year | 6 | 92
Prior | 83 | 51
Revolving Loans | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Total Loans and Leases | 392 | 590
Consumer | Other Loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 74,193 | 185,464
Fiscal Year Before Latest Fiscal Year | 150,386 | 124,873
Two Years Before Latest Fiscal Year | 100,138 | 31,413
Three Years Before Latest Fiscal Year | 16,453 | 40,050
Four Years Before Latest Fiscal Year | 21,239 | 16,493
Prior | 34,971 | 9,877
Revolving Loans | 1,415 | 23,287
Revolving Loans Converted to Term Loans | 0 | 1,042
Total Loans and Leases | 398,795 | 432,499
Consumer | Other Loans | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 74,075 | 185,347
Fiscal Year Before Latest Fiscal Year | 150,228 | 124,759
Two Years Before Latest Fiscal Year | 99,977 | 31,343
Three Years Before Latest Fiscal Year | 16,432 | 39,902
Four Years Before Latest Fiscal Year | 21,154 | 16,364
Prior | 34,871 | 9,853
Revolving Loans | 1,415 | 23,228
Revolving Loans Converted to Term Loans | 0 | 1,020
Total Loans and Leases | 398,152 | 431,816
Consumer | Other Loans | Classified |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current Fiscal Year | 118 | 117
Fiscal Year Before Latest Fiscal Year | 158 | 114
Two Years Before Latest Fiscal Year | 161 | 70
Three Years Before Latest Fiscal Year | 21 | 148
Four Years Before Latest Fiscal Year | 85 | 129
Prior | 100 | 24
Revolving Loans | 0 | 59
Revolving Loans Converted to Term Loans | 0 | 22
Total Loans and Leases | $ 643 | $ 683

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