Consolidated Statements of Earnings - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Interest income:
Loans and leases	$ 1,312,580	$ 996,457	$ 993,138
Investment securities	209,751	153,468	106,770
Deposits in financial institutions	34,158	8,804	3,583
Total interest income	1,556,489	1,158,729	1,103,491
Interest expense:
Deposits	200,449	27,808	59,663
Borrowings	25,645	623	8,161
Subordinated debt	39,633	26,474	21,109
Total interest expense	265,727	54,905	88,933
Net interest income	1,290,762	1,103,824	1,014,558
Provision for credit losses	24,500	(162,000)	339,000
Net interest income after provision for credit losses	1,266,262	1,265,824	675,558
Noninterest income:
Other commissions and fees	43,635	42,287	40,347
Leased equipment income	50,586	45,746	43,628
Service charges on deposit accounts	13,991	13,269	10,351
Gain on sale of loans and leases	518	1,733	2,139
(Loss) gain on sale of securities	(50,321)	1,615	13,171
Dividends and (losses) gains on equity investments	(3,389)	23,115	14,984
Warrant income	2,490	49,341	10,609
Other income	17,317	16,821	10,831
Total noninterest income	74,827	193,927	146,060
Noninterest expense:
Compensation	406,839	368,450	271,494
Occupancy	60,964	58,422	57,555
Leased equipment depreciation	35,658	35,755	28,865
Data processing	38,177	30,277	26,779
Insurance and assessments	25,486	17,365	22,625
Other professional services	30,278	21,492	19,917
Customer related expense	55,273	20,504	17,532
Intangible asset amortization	13,576	12,734	14,753
Loan expense	24,572	17,031	13,454
Acquisition, integration and reorganization costs	5,703	9,415	1,060
Foreclosed assets income, net	(3,737)	(213)	(17)
Goodwill impairment	29,000	0	1,470,000
Other expense	51,732	46,185	40,002
Total noninterest expense	773,521	637,417	1,984,019
Earnings (loss) before income taxes	567,568	822,334	(1,162,401)
Income tax expense	(143,955)	(215,375)	(75,173)
Net earnings (loss)	$ 423,613	$ 606,959	$ (1,237,574)
Basic income per share (usd per share)	$ 3.37	$ 5.10	$ (10.61)
Diluted income per share (usd per share)	$ 3.37	$ 5.10	$ (10.61)
Preferred Stock Dividends, Income Statement Impact	$ 19,339	$ 0	$ 0
Net Income (Loss) Available to Common Stockholders, Diluted	404,274	606,959	(1,237,574)
Net Income (Loss) Available to Common Stockholders, Basic	$ 404,274	$ 606,959	$ (1,237,574)