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Loans and Allowance for Loan Losses - Schedule of Rollforward of Allowance for Loan Losses (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
Allowance for loan losses: |  |  |  |  |
Beginning balance | $ 485,101 | $ 471,238 | $ 479,385 | $ 443,424 | $ 443,424
Charge-offs | (34,106) | (73,935) | (126,965) | (135,526) | (183,074)
Recoveries | 7,054 | 7,113 | 21,072 | 23,758 |
Provision for (reversal of) loan losses | 26,936 | 73,116 | 111,493 | 145,876 |
Ending balance | 484,985 | 477,532 | 484,985 | 477,532 | 479,385
Commercial & Industrial |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance | 220,730 | 159,987 | 218,970 | 161,550 | 161,550
Charge-offs | (21,484) | (40,483) | (93,806) | (71,197) |
Recoveries | 5,094 | 3,842 | 12,971 | 13,720 |
Provision for (reversal of) loan losses | (4,272) | 56,322 | 61,933 | 75,595 |
Ending balance | 200,068 | 179,668 | 200,068 | 179,668 | 218,970
Commercial Real Estate |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance | 141,680 | 169,726 | 133,758 | 143,575 | 143,575
Charge-offs | (5,833) | (23,364) | (9,807) | (23,465) |
Recoveries | 333 | 310 | 1,562 | 972 |
Provision for (reversal of) loan losses | 7,408 | 16,490 | 18,075 | 42,080 |
Ending balance | 143,588 | 163,162 | 143,588 | 163,162 | 133,758
Total consumer |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance | 122,691 | 141,525 | 126,657 | 138,299 | 138,299
Charge-offs | (6,789) | (10,088) | (23,352) | (40,864) |
Recoveries | 1,627 | 2,961 | 6,539 | 9,066 |
Provision for (reversal of) loan losses | 23,800 | 304 | 31,485 | 28,201 |
Ending balance | $ 141,329 | $ 134,702 | $ 141,329 | $ 134,702 | $ 126,657

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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 + Details
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