Consolidated Statements of Earnings - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Interest income:
Loans and leases	$ 1,440,397	$ 1,501,534	$ 1,496,357
Investment securities	153,326	140,794	174,996
Deposits in financial institutions	82,930	170,377	299,647
Total interest income	1,676,653	1,812,705	1,971,000
Interest expense:
Deposits	558,440	715,984	748,423
Borrowings	78,761	104,398	416,744
Subordinated debt	62,066	66,273	58,705
Total interest expense	699,267	886,655	1,223,872
Net interest income	977,386	926,050	747,128
Provision for credit losses	70,600	42,801	52,000
Net interest income after provision for credit losses	906,786	883,249	695,128
Noninterest income:
Other commissions and fees	38,637	33,258	38,086
Leased equipment income	47,717	51,109	63,167
Service charges on deposit accounts	19,146	18,583	16,468
(Loss) gain on sale of loans and leases	(115)	645	(161,346)
Loss on sale of securities	0	(60,400)	(442,413)
Dividends and gains on equity investments	7,992	7,982	15,731
Warrant income (loss)	1,726	408	(718)
LOCOM HFS Adjustment	(9)	215	(8,461)
Other income	27,045	25,345	31,201
Total noninterest income (loss)	142,139	77,145	(448,285)
Noninterest expense:
Compensation	349,506	341,396	332,353
Occupancy	60,624	67,993	61,668
Leased equipment depreciation	26,393	29,271	34,243
Insurance and assessments	32,750	70,779	135,666
Other professional services	23,087	20,857	24,623
Customer related expense	105,425	129,471	124,104
Intangible asset amortization	28,267	33,143	11,419
Loan expense	16,372	17,306	20,458
Acquisition, integration and reorganization costs	0	(14,183)	142,633
Goodwill impairment	0	0	1,376,736
Other expense	37,968	35,289	142,473
Total noninterest expense	735,850	791,740	2,458,181
Earnings (loss) before income taxes	313,075	168,654	(2,211,338)
Income tax expense (benefit)	(84,102)	(41,766)	312,201
Net earnings (loss)	$ 228,973	$ 126,888	$ (1,899,137)
Basic income per share (usd per share)	$ 1.18	$ 0.52	$ (22.71)
Diluted income per share (usd per share)	$ 1.17	$ 0.52	$ (22.71)
Preferred Stock Dividends, Income Statement Impact	$ 39,788	$ 39,788	$ 39,788
Net Income (Loss) Available to Common Stockholders, Diluted	189,185	87,100	(1,938,925)
Net Income (Loss) Available to Common Stockholders, Basic	189,185	87,100	(1,938,925)
Information Technology and Data Processing	$ 55,458	$ 60,418	$ 51,805