Condensed Consolidated Statements of Earnings - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Interest income:
Loans and leases	$ 267,759	$ 241,544
Investment securities	53,422	30,265
Deposits in financial institutions	1,723	1,528
Total interest income	322,904	273,337
Interest expense:
Deposits	6,208	7,500
Borrowings	161	193
Subordinated debt	7,818	4,375
Total interest expense	14,187	12,068
Net interest income	308,717	261,269
Provision for credit losses	0	(48,000)
Net interest income after provision for credit losses	308,717	309,269
Noninterest income:
Leased equipment income	13,094	11,354
Other commissions and fees	11,580	9,158
Service charges on deposit accounts	3,571	2,934
Gain on sale of loans and leases	60	139
Gain on sale of securities	104	101
Dividends and (losses) gains on equity investments	(11,375)	10,904
Warrant income	629	6,123
Other income	3,155	4,116
Total noninterest income	20,818	44,829
Noninterest expense:
Compensation	92,240	79,882
Occupancy	15,200	14,054
Leased equipment depreciation	9,189	8,969
Data processing	9,629	6,957
Other professional services	5,954	5,126
Insurance and assessments	5,490	4,903
Customer related expense	12,655	4,818
Loan expense	5,157	3,193
Intangible asset amortization	3,649	3,079
Acquisition, integration and reorganization costs	0	3,425
Foreclosed assets (income) expense, net	(3,353)	1
Other expense	11,616	15,729
Total noninterest expense	167,426	150,136
Earnings before income taxes	162,109	203,962
Income tax expense	(41,981)	(53,556)
Net earnings	$ 120,128	$ 150,406
Earnings per share:
Basic (usd per share)	$ 1.01	$ 1.27
Diluted (usd per share)	$ 1.01	$ 1.27