Business Segments (Tables)

12 Months Ended

Dec. 31, 2025

Segment Reporting [Abstract]

Schedule of Operating Results and Key Financial Measures by Operating Segments

The following tables present the operating results and other key financial measures for the individual operating segments as of and for the years ended December 31, 2025, 2024 and 2023:

($ in thousands)	Consumer and Business Banking		Commercial Banking		Treasury and Other		Total
Year Ended December 31, 2025
Net interest income before provision for (reversal of) credit losses	$	1,079,288	$	1,028,314	$	445,027	$	2,552,629
Noninterest income	120,779		218,177		40,271		379,227
Total revenue before provision for (reversal of) credit losses	1,200,067		1,246,491		485,298		2,931,856
Provision for (reversal of) credit losses	26,044		152,085		(18,129)		160,000
Compensation and employee benefits	240,500		246,303		131,950		618,753
Other noninterest expense (1)	229,833		157,616		40,194		427,643
Total noninterest expense	470,333		403,919		172,144		1,046,396
Segment income before income taxes	703,690		690,487		331,283		1,725,460
Segment net income	$	502,687	$	493,508	$	328,993	$	1,325,188
Average balances:
Loans	$	20,313,671	$	34,000,936	$	310,352	$	54,624,959
Deposits	$	33,384,458	$	27,137,950	$	4,326,953	$	64,849,361
As of December 31, 2025
Segment assets	$	21,384,121	$	37,393,886	$	21,656,990	$	80,434,997

($ in thousands)	Consumer and Business Banking		Commercial Banking		Treasury and Other		Total
Year Ended December 31, 2024
Net interest income before provision for (reversal of) credit losses	$	1,152,033	$	1,125,931	$	752	$	2,278,716
Noninterest income	108,773		197,780		28,665		335,218
Total revenue before provision for (reversal of) credit losses	1,260,806		1,323,711		29,417		2,613,934
Provision for (reversal of) credit losses	8,691		166,953		(1,644)		174,000
Compensation and employee benefits	217,612		234,240		98,882		550,734
Other noninterest expense (1)	234,494		161,969		10,876		407,339
Total noninterest expense	452,106		396,209		109,758		958,073
Segment income (loss) before income taxes	800,009		760,549		(78,697)		1,481,861
Segment net income	$	563,218	$	535,652	$	66,716	$	1,165,586
Average balances:
Loans	$	18,966,662	$	32,996,221	$	405,897	$	52,368,780
Deposits	$	30,815,912	$	25,820,956	$	3,036,171	$	59,673,039
As of December 31, 2024
Segment assets	$	20,084,814	$	35,646,939	$	20,244,722	$	75,976,475

($ in thousands)	Consumer and Business Banking		Commercial Banking		Treasury and Other		Total
Year Ended December 31, 2023
Net interest income (loss) before provision for credit losses	$	1,225,954	$	1,116,013	$	(29,713)	$	2,312,254
Noninterest income	103,210		168,502		21,400		293,112
Total revenue (loss) before provision for credit losses	1,329,164		1,284,515		(8,313)		2,605,366
Provision for credit losses	21,454		100,391		3,155		125,000
Compensation and employee benefits	203,387		217,663		87,488		508,538
Other noninterest expense (1)	261,406		158,949		91,703		512,058
Total noninterest expense	464,793		376,612		179,191		1,020,596
Segment income (loss) before income taxes	842,917		807,512		(190,659)		1,459,770
Segment net income (loss)	$	594,965	$	570,153	$	(3,957)	$	1,161,161
Average balances:
Loans	$	17,739,984	$	31,365,547	$	439,605	$	49,545,136
Deposits	$	28,174,781	$	23,304,066	$	3,483,884	$	54,962,731
As of December 31, 2023
Segment assets	$	19,165,172	$	35,020,106	$	15,427,606	$	69,612,884

(1)The Consumer and Business Banking segment's other noninterest expense is primarily comprised of corporate overhead allocated expenses, occupancy and equipment expense, and other operating expenses. The Commercial Banking segment’s other noninterest expense is primarily comprised of corporate overhead allocated expenses, deposit account expense, and other operating expenses. The Treasury and Other segment's other noninterest expense is primarily comprised of amortization of tax credit and CRA investments, and other operating expenses, net of any corporate overhead expenses allocated to other segments.