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Business Segments - Schedule Of Operating Results And Other Key Financial Measures For The Individual Operating Segments (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Dec. 31, 2023
Segment Reporting Information |  |  |  |  |
Net interest income (loss) before provision for credit losses | $ 572,722 | $ 570,813 | $ 1,691,090 | $ 1,737,420 |
Provision for (reversal of) credit losses | 42,000 | 42,000 | 104,000 | 88,000 |
Noninterest income | 84,761 | 76,752 | 248,422 | 215,361 |
Noninterest expense | 226,166 | 252,014 | 709,475 | 732,250 |
INCOME BEFORE INCOME TAXES | 389,317 | 353,551 | 1,126,037 | 1,132,531 |
Segment net income (loss) | 299,166 | 287,738 | 872,471 | 922,208 |
Segment assets | 74,483,720 | 68,289,458 | 74,483,720 | 68,289,458 | $ 69,612,884
Consumer and Business Banking |  |  |  |  |
Segment Reporting Information |  |  |  |  |
Net interest income (loss) before provision for credit losses | 290,884 | 314,521 | 880,316 | 922,845 |
Provision for (reversal of) credit losses | 5,927 | 2,563 | 5,246 | 29,037 |
Noninterest income | 27,970 | 25,119 | 80,288 | 77,191 |
Noninterest expense | 112,006 | 105,557 | 337,836 | 318,947 |
INCOME BEFORE INCOME TAXES | 200,921 | 231,520 | 617,522 | 652,052 |
Segment net income (loss) | 141,532 | 163,513 | 434,992 | 460,516 |
Segment assets | 19,650,183 | 18,925,029 | 19,650,183 | 18,925,029 |
Commercial Banking |  |  |  |  |
Segment Reporting Information |  |  |  |  |
Net interest income (loss) before provision for credit losses | 288,704 | 284,787 | 855,607 | 825,122 |
Provision for (reversal of) credit losses | 36,934 | 35,506 | 99,996 | 56,093 |
Noninterest income | 45,577 | 42,166 | 141,634 | 128,306 |
Noninterest expense | 93,602 | 86,613 | 296,252 | 255,709 |
INCOME BEFORE INCOME TAXES | 203,745 | 204,834 | 600,993 | 641,626 |
Segment net income (loss) | 143,218 | 144,489 | 423,407 | 453,360 |
Segment assets | 35,714,691 | 34,028,487 | 35,714,691 | 34,028,487 |
Treasury and Other |  |  |  |  |
Segment Reporting Information |  |  |  |  |
Net interest income (loss) before provision for credit losses | (6,866) | (28,495) | (44,833) | (10,547) |
Provision for (reversal of) credit losses | (861) | 3,931 | (1,242) | 2,870 |
Noninterest income | 11,214 | 9,467 | 26,500 | 9,864 |
Noninterest expense | 20,558 | 59,844 | 75,387 | 157,594 |
INCOME BEFORE INCOME TAXES | (15,349) | (82,803) | (92,478) | (161,147) |
Segment net income (loss) | 14,416 | (20,264) | 14,072 | 8,332 |
Segment assets | $ 19,118,846 | $ 15,335,942 | $ 19,118,846 | $ 15,335,942 |

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