CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Interest income:
Loans	$ 570,120	$ 446,245	$ 1,111,330	$ 873,036
Money market investments	100,775	23,742	166,499	30,206
Investment securities	123,112	101,774	255,200	198,240
Total interest income	794,007	571,761	1,533,029	1,101,482
Interest expense:
Deposits	243,488	27,827	436,703	52,610
Short-term borrowings	1,624	248	4,509	328
Long-term debt	17,227	9,824	28,493	20,370
Total interest expense	262,339	37,899	469,705	73,308
Net interest income	531,668	533,862	1,063,324	1,028,174
Provision for credit losses (benefit)	37,192	9,362	84,829	(6,138)
Net interest income after provision for credit losses (benefit)	494,476	524,500	978,495	1,034,312
Mortgage banking activities	2,316	13,575	9,716	26,440
Net gain (loss), including impairment on equity securities	1,384	(4,109)	2,484	(6,203)
Net gain (loss) on trading account debt securities	35	51	413	(672)
Adjustments to indemnity reserves on loans sold	(456)	170	156	(575)
Other operating income	25,146	24,464	52,863	52,006
Total non-interest income	160,471	157,411	322,432	312,103
Operating expenses:
Personnel costs	191,468	168,788	390,228	335,784
Net occupancy expenses	27,165	26,214	53,204	50,937
Equipment expenses	9,561	8,674	17,973	17,063
Other taxes	16,409	15,780	32,700	31,495
Professional fees	50,132	38,430	83,563	75,222
Technology and software expenses	72,354	74,761	140,913	145,296
Processing and transactional services	36,801	31,037	70,710	61,990
Communications	4,175	3,497	8,263	7,170
Business promotion	25,083	21,353	43,954	36,436
FDIC deposit insurance	6,803	6,463	15,668	13,835
Other real estate owned (OREO) income	(3,314)	(7,806)	(5,008)	(10,519)
Other operating expenses	22,852	18,292	47,213	42,222
Amortization of intangibles	795	795	1,590	1,686
Total operating expenses	460,284	406,278	900,971	808,617
Income before income tax	194,663	275,633	399,956	537,798
Income tax expense	43,503	64,212	89,817	114,691
Net Income	151,160	211,421	310,139	423,107
Net Income Applicable to Common Stock	$ 150,807	$ 211,068	$ 309,433	$ 422,401
Net Income per Common Share - Basic	$ 2.10	$ 2.77	$ 4.32	$ 5.46
Net Income per Common Share - Diluted	$ 2.10	$ 2.77	$ 4.32	$ 5.46
Service charges on deposit accounts
Interest expense:
Revenue from contract with customer	$ 37,781	$ 41,809	$ 72,459	$ 82,522
Other services
Interest expense:
Revenue from contract with customer	$ 94,265	$ 81,451	$ 184,341	$ 158,585