CONSOLIDATED STATEMENTS OF INCOME AND OTHER COMPREHENSIVE INCOME/(LOSS) - UNAUDITED - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Interest income
Interest and fees on loans	$ 218,290	$ 203,074	$ 405,947	$ 413,405
Investment securities	14,665	10,918	31,967	20,805
Interest-bearing cash and cash equivalents	9,394	2,961	12,965	5,894
Total interest income	242,349	216,953	450,879	440,104
Interest expense
Deposits	20,566	16,271	34,196	36,275
Short-term borrowings	4,859	502	5,617	3,094
Long-term debt	11,393	10,723	21,988	16,466
Total interest expense	36,818	27,496	61,801	55,835
Net interest income	205,531	189,457	389,078	384,269
Provision for credit losses	22,000	(19,000)	20,000	(25,000)
Net interest income after provision for credit losses	183,531	208,457	369,078	409,269
Non-interest income
Service charges on deposit accounts	6,003	4,634	12,025	9,350
Wealth management and trust fee income	4,051	3,143	7,963	5,998
Brokered loan fees	4,133	6,933	8,103	16,244
Servicing income	228	5,935	465	14,944
Investment banking and trading income	11,126	8,071	15,305	13,858
Net gain/(loss) on sale of loans held for sale	0	(3,070)	0	2,502
Other	701	11,993	2,663	19,096
Total non-interest income	26,242	37,639	46,524	81,992
Non-interest expense
Salaries and benefits	103,885	86,830	203,983	174,352
Occupancy expense	8,874	7,865	17,759	16,139
Marketing	8,506	1,900	13,483	3,597
Legal and professional	11,288	9,147	21,590	17,424
Communications and technology	15,649	14,352	30,349	30,321
Federal Deposit Insurance Corporation (“FDIC”) insurance assessment	3,318	5,226	7,299	11,839
Servicing-related expenses	0	12,355	0	25,344
Other	12,783	11,385	22,932	20,360
Total non-interest expense	164,303	149,060	317,395	299,376
Income before income taxes	45,470	97,036	98,207	191,885
Income tax expense	11,311	23,555	24,398	46,466
Net income	34,159	73,481	73,809	145,419
Preferred Stock Dividends and Other Adjustments [Abstract]
Preferred stock dividends	4,312	6,317	8,625	10,096
Net income available to common stockholders	29,847	67,164	65,184	135,323
Other comprehensive income/(loss):
Change in unrealized gain/(loss)	(86,438)	38,037	(287,057)	(53,370)
Amounts reclassified into net income	1,903	0	2,889	0
Other comprehensive income/(loss)	(84,535)	38,037	(284,168)	(53,370)
Income tax expense/(benefit)	(17,752)	7,989	(59,675)	(11,207)
Other comprehensive income/(loss), net of tax	(66,783)	30,048	(224,493)	(42,163)
Comprehensive income/(loss)	$ (32,624)	$ 103,529	$ (150,684)	$ 103,256
Basic earnings per common share
Basic earnings per common share	$ 0.59	$ 1.33	$ 1.29	$ 2.68
Diluted earnings per common share
Diluted earnings per common share	$ 0.59	$ 1.31	$ 1.28	$ 2.65