Business Segments (Tables)

12 Months Ended

Dec. 31, 2023

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, 2023, 2022 and 2021:

($ in thousands)	Consumer and Business Banking		Commercial Banking		Other		Total
Year Ended December 31, 2023
Net interest income before provision for credit losses	$	1,238,829	$	992,519	$	80,906	$	2,312,254
Provision for credit losses	18,422		106,578		—		125,000
Noninterest income	102,109		174,465		18,690		295,264
Noninterest expense	477,622		382,865		162,261		1,022,748
Segment income (loss) before income taxes	844,894		677,541		(62,665)		1,459,770
Segment net income	$	596,366	$	478,418	$	86,377	$	1,161,161
As of December 31, 2023
Segment assets	$	19,510,836	$	35,095,237	$	15,006,811	$	69,612,884

($ in thousands)	Consumer and Business Banking		Commercial Banking		Other		Total
Year Ended December 31, 2022
Net interest income (loss) before provision for credit losses	$	1,170,850	$	892,386	$	(17,355)	$	2,045,881
Provision for credit losses	27,197		46,303		—		73,500
Noninterest income	110,139		179,248		9,279		298,666
Noninterest expense	397,882		314,185		147,326		859,393
Segment income (loss) before income taxes	855,910		711,146		(155,402)		1,411,654
Segment net income	$	608,120	$	507,467	$	12,496	$	1,128,083
As of December 31, 2022
Segment assets	$	17,385,804	$	33,042,785	$	13,683,561	$	64,112,150

($ in thousands)	Consumer and Business Banking		Commercial Banking		Other		Total
Year Ended December 31, 2021
Net interest income before reversal of provision for credit losses	$	697,101	$	766,202	$	68,268	$	1,531,571
Reversal of provision for credit losses	(4,998)		(30,002)		—		(35,000)
Noninterest income	94,125		163,768		28,002		285,895
Noninterest expense	364,635		275,649		155,805		796,089
Segment income (loss) before income taxes	431,589		684,323		(59,535)		1,056,377
Segment net income	$	308,630	$	489,233	$	75,118	$	872,981
As of December 31, 2021
Segment assets	$	14,961,809	$	28,556,706	$	17,352,186	$	60,870,701