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Loans, Changes in the Allowance for Loan Losses by Portfolio Segment (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Dec. 31, 2023
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | $ 62,645 |  | $ 58,768
Off-Balance Sheet, Credit Loss, Liability [Roll Forward] |  |  |  |  |
Off-Balance-Sheet, Credit Loss, Liability, Beginning Balance |  |  | 34,776 | $ 38,776 | 38,776
Off-Balance-Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal) |  |  | 1,000 |  | (4,000)
Off-Balance-Sheet, Credit Loss, Liability, Ending Balance | $ 35,776 |  | 35,776 |  | 34,776
Allowance for Credit Losses on Loans [Abstract] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | 62,645 |  | 58,768
Provision for Loan, Lease, and Other Losses | 20,991 | $ 21,943 | 68,000 | 62,014 |
Allowance for Loan Losses [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Beginning Balance |  |  | 351,094 | 312,720 | 312,720
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | (62,645) |  | (58,768)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 6,316 |  | 10,142
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (56,329) |  | (48,626)
Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease) |  |  | 67,000 |  | 87,000
Financing Receivable, Allowance for Credit Loss, Ending Balance | 361,765 |  | 361,765 |  | 351,094
Allowance for Credit Losses on Loans [Abstract] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | (62,645) |  | (58,768)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 6,316 |  | 10,142
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (56,329) |  | (48,626)
Allowance for Loan Losses [Member] | Commercial and Industrial Sector [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Beginning Balance |  |  | 128,263 | 119,076 | 119,076
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | (44,896) |  | (45,687)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 1,933 |  | 3,015
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (42,963) |  | (42,672)
Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease) |  |  | 33,104 |  | 51,859
Financing Receivable, Allowance for Credit Loss, Ending Balance | 118,404 |  | 118,404 |  | 128,263
Allowance for Credit Losses on Loans [Abstract] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | (44,896) |  | (45,687)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 1,933 |  | 3,015
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (42,963) |  | (42,672)
Allowance for Loan Losses [Member] | Commercial Real Estate Owner Occupied Portfolio [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Beginning Balance |  |  | 10,610 | 9,475 | 9,475
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | (3) |  | (25)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 6 |  | 11
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | 4 |  | (15)
Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease) |  |  | 1,099 |  | 1,150
Financing Receivable, Allowance for Credit Loss, Ending Balance | 11,713 |  | 11,713 |  | 10,610
Allowance for Credit Losses on Loans [Abstract] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | (3) |  | (25)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 6 |  | 11
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | 4 |  | (15)
Allowance for Loan Losses [Member] | Commercial And Business Lending [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Beginning Balance |  |  | 138,873 | 128,551 | 128,551
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | (44,899) |  | (45,713)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 1,939 |  | 3,026
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (42,959) |  | (42,687)
Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease) |  |  | 34,202 |  | 53,009
Financing Receivable, Allowance for Credit Loss, Ending Balance | 130,116 |  | 130,116 |  | 138,873
Allowance for Credit Losses on Loans [Abstract] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | (44,899) |  | (45,713)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 1,939 |  | 3,026
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (42,959) |  | (42,687)
Allowance for Loan Losses [Member] | Commercial Real Estate Investor Portfolio Segment [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Beginning Balance |  |  | 67,858 | 54,398 | 54,398
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | (4,570) |  | (252)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 0 |  | 3,016
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (4,570) |  | 2,763
Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease) |  |  | 14,776 |  | 10,697
Financing Receivable, Allowance for Credit Loss, Ending Balance | 78,064 |  | 78,064 |  | 67,858
Allowance for Credit Losses on Loans [Abstract] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | (4,570) |  | (252)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 0 |  | 3,016
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (4,570) |  | 2,763
Allowance for Loan Losses [Member] | Construction Loans [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Beginning Balance |  |  | 53,554 | 45,589 | 45,589
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | 0 |  | (25)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 60 |  | 80
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | 60 |  | 55
Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease) |  |  | 8,287 |  | 7,910
Financing Receivable, Allowance for Credit Loss, Ending Balance | 61,901 |  | 61,901 |  | 53,554
Allowance for Credit Losses on Loans [Abstract] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | 0 |  | (25)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 60 |  | 80
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | 60 |  | 55
Allowance for Loan Losses [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Beginning Balance |  |  | 121,412 | 99,986 | 99,986
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | (4,570) |  | (277)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 60 |  | 3,095
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (4,509) |  | 2,819
Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease) |  |  | 23,063 |  | 18,607
Financing Receivable, Allowance for Credit Loss, Ending Balance | 139,965 |  | 139,965 |  | 121,412
Allowance for Credit Losses on Loans [Abstract] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | (4,570) |  | (277)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 60 |  | 3,095
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (4,509) |  | 2,819
Allowance for Loan Losses [Member] | Commercial Portfolio Segment [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Beginning Balance |  |  | 260,285 | 228,538 | 228,538
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | (49,469) |  | (45,989)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 2,000 |  | 6,121
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (47,469) |  | (39,868)
Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease) |  |  | 57,265 |  | 71,616
Financing Receivable, Allowance for Credit Loss, Ending Balance | 270,081 |  | 270,081 |  | 260,285
Allowance for Credit Losses on Loans [Abstract] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | (49,469) |  | (45,989)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 2,000 |  | 6,121
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (47,469) |  | (39,868)
Allowance for Loan Losses [Member] | Residential Mortgage [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Beginning Balance |  |  | 37,808 | 38,298 | 38,298
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | (703) |  | (952)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 192 |  | 541
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (510) |  | (411)
Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease) |  |  | (2,366) |  | (79)
Financing Receivable, Allowance for Credit Loss, Ending Balance | 34,931 |  | 34,931 |  | 37,808
Allowance for Credit Losses on Loans [Abstract] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | (703) |  | (952)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 192 |  | 541
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (510) |  | (411)
Allowance for Loan Losses [Member] | Automobile Loan [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Beginning Balance |  |  | 24,961 | 19,619 | 19,619
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | (7,189) |  | (5,950)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 2,335 |  | 1,241
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (4,855) |  | (4,709)
Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease) |  |  | 7,914 |  | 10,051
Financing Receivable, Allowance for Credit Loss, Ending Balance | 28,020 |  | 28,020 |  | 24,961
Allowance for Credit Losses on Loans [Abstract] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | (7,189) |  | (5,950)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 2,335 |  | 1,241
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (4,855) |  | (4,709)
Allowance for Loan Losses [Member] | Home Equity Line of Credit [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Beginning Balance |  |  | 15,403 | 14,875 | 14,875
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | (168) |  | (424)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 1,041 |  | 1,262
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | 873 |  | 837
Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease) |  |  | (197) |  | (310)
Financing Receivable, Allowance for Credit Loss, Ending Balance | 16,079 |  | 16,079 |  | 15,403
Allowance for Credit Losses on Loans [Abstract] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | (168) |  | (424)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 1,041 |  | 1,262
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | 873 |  | 837
Allowance for Loan Losses [Member] | Other Consumer [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Beginning Balance |  |  | 12,638 | 11,390 | 11,390
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | (5,116) |  | (5,453)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 748 |  | 978
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (4,368) |  | (4,475)
Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease) |  |  | 4,384 |  | 5,723
Financing Receivable, Allowance for Credit Loss, Ending Balance | 12,653 |  | 12,653 |  | 12,638
Allowance for Credit Losses on Loans [Abstract] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | (5,116) |  | (5,453)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 748 |  | 978
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (4,368) |  | (4,475)
Allowance for Loan Losses [Member] | Consumer Portfolio Segment [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Beginning Balance |  |  | 90,809 | 84,182 | 84,182
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | (13,176) |  | (12,779)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 4,316 |  | 4,021
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (8,860) |  | (8,758)
Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease) |  |  | 9,735 |  | 15,384
Financing Receivable, Allowance for Credit Loss, Ending Balance | 91,684 |  | 91,684 |  | 90,809
Allowance for Credit Losses on Loans [Abstract] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | (13,176) |  | (12,779)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 4,316 |  | 4,021
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (8,860) |  | (8,758)
SEC Schedule, 12-09, Reserve, Off-balance Sheet Activity [Member] |  |  |  |  |
Off-Balance Sheet, Credit Loss, Liability [Roll Forward] |  |  |  |  |
Off-Balance-Sheet, Credit Loss, Liability, Beginning Balance |  |  | 34,776 | 38,776 | 38,776
Off-Balance-Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal) |  |  | 1,000 |  | (4,000)
Off-Balance-Sheet, Credit Loss, Liability, Ending Balance | 35,776 |  | 35,776 |  | 34,776
SEC Schedule, 12-09, Reserve, Off-balance Sheet Activity [Member] | Commercial and Industrial Sector [Member] |  |  |  |  |
Off-Balance Sheet, Credit Loss, Liability [Roll Forward] |  |  |  |  |
Off-Balance-Sheet, Credit Loss, Liability, Beginning Balance |  |  | 13,319 | 12,997 | 12,997
Off-Balance-Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal) |  |  | 452 |  | 321
Off-Balance-Sheet, Credit Loss, Liability, Ending Balance | 13,771 |  | 13,771 |  | 13,319
SEC Schedule, 12-09, Reserve, Off-balance Sheet Activity [Member] | Commercial Real Estate Owner Occupied Portfolio [Member] |  |  |  |  |
Off-Balance Sheet, Credit Loss, Liability [Roll Forward] |  |  |  |  |
Off-Balance-Sheet, Credit Loss, Liability, Beginning Balance |  |  | 149 | 103 | 103
Off-Balance-Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal) |  |  | (62) |  | 46
Off-Balance-Sheet, Credit Loss, Liability, Ending Balance | 87 |  | 87 |  | 149
SEC Schedule, 12-09, Reserve, Off-balance Sheet Activity [Member] | Commercial And Business Lending [Member] |  |  |  |  |
Off-Balance Sheet, Credit Loss, Liability [Roll Forward] |  |  |  |  |
Off-Balance-Sheet, Credit Loss, Liability, Beginning Balance |  |  | 13,468 | 13,101 | 13,101
Off-Balance-Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal) |  |  | 390 |  | 367
Off-Balance-Sheet, Credit Loss, Liability, Ending Balance | 13,858 |  | 13,858 |  | 13,468
SEC Schedule, 12-09, Reserve, Off-balance Sheet Activity [Member] | Commercial Real Estate Investor Portfolio Segment [Member] |  |  |  |  |
Off-Balance Sheet, Credit Loss, Liability [Roll Forward] |  |  |  |  |
Off-Balance-Sheet, Credit Loss, Liability, Beginning Balance |  |  | 480 | 710 | 710
Off-Balance-Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal) |  |  | 199 |  | (230)
Off-Balance-Sheet, Credit Loss, Liability, Ending Balance | 679 |  | 679 |  | 480
SEC Schedule, 12-09, Reserve, Off-balance Sheet Activity [Member] | Construction Loans [Member] |  |  |  |  |
Off-Balance Sheet, Credit Loss, Liability [Roll Forward] |  |  |  |  |
Off-Balance-Sheet, Credit Loss, Liability, Beginning Balance |  |  | 17,024 | 20,583 | 20,583
Off-Balance-Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal) |  |  | 211 |  | (3,558)
Off-Balance-Sheet, Credit Loss, Liability, Ending Balance | 17,235 |  | 17,235 |  | 17,024
SEC Schedule, 12-09, Reserve, Off-balance Sheet Activity [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |  |  |
Off-Balance Sheet, Credit Loss, Liability [Roll Forward] |  |  |  |  |
Off-Balance-Sheet, Credit Loss, Liability, Beginning Balance |  |  | 17,504 | 21,292 | 21,292
Off-Balance-Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal) |  |  | 410 |  | (3,788)
Off-Balance-Sheet, Credit Loss, Liability, Ending Balance | 17,914 |  | 17,914 |  | 17,504
SEC Schedule, 12-09, Reserve, Off-balance Sheet Activity [Member] | Commercial Portfolio Segment [Member] |  |  |  |  |
Off-Balance Sheet, Credit Loss, Liability [Roll Forward] |  |  |  |  |
Off-Balance-Sheet, Credit Loss, Liability, Beginning Balance |  |  | 30,972 | 34,393 | 34,393
Off-Balance-Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal) |  |  | 800 |  | (3,421)
Off-Balance-Sheet, Credit Loss, Liability, Ending Balance | 31,772 |  | 31,772 |  | 30,972
SEC Schedule, 12-09, Reserve, Off-balance Sheet Activity [Member] | Home Equity Line of Credit [Member] |  |  |  |  |
Off-Balance Sheet, Credit Loss, Liability [Roll Forward] |  |  |  |  |
Off-Balance-Sheet, Credit Loss, Liability, Beginning Balance |  |  | 2,629 | 2,699 | 2,699
Off-Balance-Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal) |  |  | (81) |  | (70)
Off-Balance-Sheet, Credit Loss, Liability, Ending Balance | 2,548 |  | 2,548 |  | 2,629
SEC Schedule, 12-09, Reserve, Off-balance Sheet Activity [Member] | Other Consumer [Member] |  |  |  |  |
Off-Balance Sheet, Credit Loss, Liability [Roll Forward] |  |  |  |  |
Off-Balance-Sheet, Credit Loss, Liability, Beginning Balance |  |  | 1,174 | 1,683 | 1,683
Off-Balance-Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal) |  |  | 282 |  | (509)
Off-Balance-Sheet, Credit Loss, Liability, Ending Balance | 1,456 |  | 1,456 |  | 1,174
SEC Schedule, 12-09, Reserve, Off-balance Sheet Activity [Member] | Consumer Portfolio Segment [Member] |  |  |  |  |
Off-Balance Sheet, Credit Loss, Liability [Roll Forward] |  |  |  |  |
Off-Balance-Sheet, Credit Loss, Liability, Beginning Balance |  |  | 3,803 | 4,382 | 4,382
Off-Balance-Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal) |  |  | 200 |  | (579)
Off-Balance-Sheet, Credit Loss, Liability, Ending Balance | 4,004 |  | 4,004 |  | 3,803
Allowance for Loans Losses and Unfunded Commitments [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | (62,645) |  | (58,768)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 6,316 |  | 10,142
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (56,329) |  | (48,626)
Allowance for Credit Losses on Loans [Abstract] |  |  |  |  |
Balance at beginning of period |  |  | 385,870 | 351,496 | 351,496
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | (62,645) |  | (58,768)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 6,316 |  | 10,142
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (56,329) |  | (48,626)
Provision for Loan, Lease, and Other Losses |  |  | 68,000 |  | 83,000
Balance at end of period | $ 397,541 |  | $ 397,541 |  | $ 385,870
Financing Receivable, Allowance for Credit Loss to Outstanding, Percent | 1.33% |  | 1.33% |  | 1.32%
Allowance for Loans Losses and Unfunded Commitments [Member] | Commercial and Industrial Sector [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | $ (44,896) |  | $ (45,687)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 1,933 |  | 3,015
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (42,963) |  | (42,672)
Allowance for Credit Losses on Loans [Abstract] |  |  |  |  |
Balance at beginning of period |  |  | 141,582 | 132,073 | 132,073
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | (44,896) |  | (45,687)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 1,933 |  | 3,015
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (42,963) |  | (42,672)
Provision for Loan, Lease, and Other Losses |  |  | 33,556 |  | 52,181
Balance at end of period | $ 132,175 |  | $ 132,175 |  | $ 141,582
Financing Receivable, Allowance for Credit Loss to Outstanding, Percent | 1.29% |  | 1.29% |  | 1.45%
Allowance for Loans Losses and Unfunded Commitments [Member] | Commercial Real Estate Owner Occupied Portfolio [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | $ (3) |  | $ (25)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 6 |  | 11
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | 4 |  | (15)
Allowance for Credit Losses on Loans [Abstract] |  |  |  |  |
Balance at beginning of period |  |  | 10,759 | 9,579 | 9,579
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | (3) |  | (25)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 6 |  | 11
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | 4 |  | (15)
Provision for Loan, Lease, and Other Losses |  |  | 1,036 |  | 1,195
Balance at end of period | $ 11,799 |  | $ 11,799 |  | $ 10,759
Financing Receivable, Allowance for Credit Loss to Outstanding, Percent | 1.05% |  | 1.05% |  | 1.01%
Allowance for Loans Losses and Unfunded Commitments [Member] | Commercial And Business Lending [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | $ (44,899) |  | $ (45,713)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 1,939 |  | 3,026
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (42,959) |  | (42,687)
Allowance for Credit Losses on Loans [Abstract] |  |  |  |  |
Balance at beginning of period |  |  | 152,341 | 141,652 | 141,652
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | (44,899) |  | (45,713)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 1,939 |  | 3,026
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (42,959) |  | (42,687)
Provision for Loan, Lease, and Other Losses |  |  | 34,592 |  | 53,376
Balance at end of period | $ 143,974 |  | $ 143,974 |  | $ 152,341
Financing Receivable, Allowance for Credit Loss to Outstanding, Percent | 1.27% |  | 1.27% |  | 1.41%
Allowance for Loans Losses and Unfunded Commitments [Member] | Commercial Real Estate Investor Portfolio Segment [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | $ (4,570) |  | $ (252)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 0 |  | 3,016
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (4,570) |  | 2,763
Allowance for Credit Losses on Loans [Abstract] |  |  |  |  |
Balance at beginning of period |  |  | 68,338 | 55,108 | 55,108
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | (4,570) |  | (252)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 0 |  | 3,016
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (4,570) |  | 2,763
Provision for Loan, Lease, and Other Losses |  |  | 14,975 |  | 10,467
Balance at end of period | $ 78,743 |  | $ 78,743 |  | $ 68,338
Financing Receivable, Allowance for Credit Loss to Outstanding, Percent | 1.55% |  | 1.55% |  | 1.33%
Allowance for Loans Losses and Unfunded Commitments [Member] | Construction Loans [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | $ 0 |  | $ (25)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 60 |  | 80
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | 60 |  | 55
Allowance for Credit Losses on Loans [Abstract] |  |  |  |  |
Balance at beginning of period |  |  | 70,578 | 66,171 | 66,171
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | 0 |  | (25)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 60 |  | 80
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | 60 |  | 55
Provision for Loan, Lease, and Other Losses |  |  | 8,497 |  | 4,351
Balance at end of period | $ 79,136 |  | $ 79,136 |  | $ 70,578
Financing Receivable, Allowance for Credit Loss to Outstanding, Percent | 3.74% |  | 3.74% |  | 3.11%
Allowance for Loans Losses and Unfunded Commitments [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | $ (4,570) |  | $ (277)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 60 |  | 3,095
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (4,509) |  | 2,819
Allowance for Credit Losses on Loans [Abstract] |  |  |  |  |
Balance at beginning of period |  |  | 138,916 | 121,279 | 121,279
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | (4,570) |  | (277)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 60 |  | 3,095
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (4,509) |  | 2,819
Provision for Loan, Lease, and Other Losses |  |  | 23,472 |  | 14,819
Balance at end of period | $ 157,879 |  | $ 157,879 |  | $ 138,916
Financing Receivable, Allowance for Credit Loss to Outstanding, Percent | 2.20% |  | 2.20% |  | 1.88%
Allowance for Loans Losses and Unfunded Commitments [Member] | Commercial Portfolio Segment [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | $ (49,469) |  | $ (45,989)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 2,000 |  | 6,121
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (47,469) |  | (39,868)
Allowance for Credit Losses on Loans [Abstract] |  |  |  |  |
Balance at beginning of period |  |  | 291,257 | 262,931 | 262,931
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | (49,469) |  | (45,989)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 2,000 |  | 6,121
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (47,469) |  | (39,868)
Provision for Loan, Lease, and Other Losses |  |  | 58,065 |  | 68,195
Balance at end of period | $ 301,853 |  | $ 301,853 |  | $ 291,257
Financing Receivable, Allowance for Credit Loss to Outstanding, Percent | 1.63% |  | 1.63% |  | 1.60%
Allowance for Loans Losses and Unfunded Commitments [Member] | Residential Mortgage [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | $ (703) |  | $ (952)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 192 |  | 541
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (510) |  | (411)
Allowance for Credit Losses on Loans [Abstract] |  |  |  |  |
Balance at beginning of period |  |  | 37,808 | 38,298 | 38,298
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | (703) |  | (952)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 192 |  | 541
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (510) |  | (411)
Provision for Loan, Lease, and Other Losses |  |  | (2,366) |  | (79)
Balance at end of period | $ 34,931 |  | $ 34,931 |  | $ 37,808
Financing Receivable, Allowance for Credit Loss to Outstanding, Percent | 0.45% |  | 0.45% |  | 0.48%
Allowance for Loans Losses and Unfunded Commitments [Member] | Automobile Loan [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | $ (7,189) |  | $ (5,950)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 2,335 |  | 1,241
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (4,855) |  | (4,709)
Allowance for Credit Losses on Loans [Abstract] |  |  |  |  |
Balance at beginning of period |  |  | 24,961 | 19,619 | 19,619
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | (7,189) |  | (5,950)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 2,335 |  | 1,241
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (4,855) |  | (4,709)
Provision for Loan, Lease, and Other Losses |  |  | 7,914 |  | 10,051
Balance at end of period | $ 28,020 |  | $ 28,020 |  | $ 24,961
Financing Receivable, Allowance for Credit Loss to Outstanding, Percent | 1.03% |  | 1.03% |  | 1.11%
Allowance for Loans Losses and Unfunded Commitments [Member] | Home Equity Line of Credit [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | $ (168) |  | $ (424)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 1,041 |  | 1,262
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | 873 |  | 837
Allowance for Credit Losses on Loans [Abstract] |  |  |  |  |
Balance at beginning of period |  |  | 18,032 | 17,574 | 17,574
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | (168) |  | (424)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 1,041 |  | 1,262
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | 873 |  | 837
Provision for Loan, Lease, and Other Losses |  |  | (278) |  | (380)
Balance at end of period | $ 18,627 |  | $ 18,627 |  | $ 18,032
Financing Receivable, Allowance for Credit Loss to Outstanding, Percent | 2.86% |  | 2.86% |  | 2.87%
Allowance for Loans Losses and Unfunded Commitments [Member] | Other Consumer [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | $ (5,116) |  | $ (5,453)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 748 |  | 978
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (4,368) |  | (4,475)
Allowance for Credit Losses on Loans [Abstract] |  |  |  |  |
Balance at beginning of period |  |  | 13,812 | 13,073 | 13,073
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | (5,116) |  | (5,453)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 748 |  | 978
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (4,368) |  | (4,475)
Provision for Loan, Lease, and Other Losses |  |  | 4,665 |  | 5,214
Balance at end of period | $ 14,109 |  | $ 14,109 |  | $ 13,812
Financing Receivable, Allowance for Credit Loss to Outstanding, Percent | 5.37% |  | 5.37% |  | 4.97%
Allowance for Loans Losses and Unfunded Commitments [Member] | Consumer Portfolio Segment [Member] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | $ (13,176) |  | $ (12,779)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 4,316 |  | 4,021
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (8,860) |  | (8,758)
Allowance for Credit Losses on Loans [Abstract] |  |  |  |  |
Balance at beginning of period |  |  | 94,613 | $ 88,565 | 88,565
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | (13,176) |  | (12,779)
Financing Receivable, Allowance for Credit Loss, Recovery |  |  | 4,316 |  | 4,021
Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery |  |  | (8,860) |  | (8,758)
Provision for Loan, Lease, and Other Losses |  |  | 9,935 |  | 14,805
Balance at end of period | $ 95,688 |  | $ 95,688 |  | $ 94,613
Financing Receivable, Allowance for Credit Loss to Outstanding, Percent | 0.84% |  | 0.84% |  | 0.86%

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