CONSOLIDATED CONDENSED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Interest income:
Interest and fees on loans	$ 305,913	$ 352,112	$ 632,512	$ 684,050
Interest on investment securities available-for-sale	24,977	31,247	52,733	63,090
Interest on investment securities held-to-maturity	132	132	263	263
Interest on loans held-for-sale	6,596	8,128	13,495	18,005
Interest on trading securities	8,723	13,154	21,840	26,702
Interest on other earning assets	283	7,316	4,149	20,594
Total interest income	346,624	412,089	724,992	812,704
Interest on deposits:
Savings	12,520	36,806	38,853	76,720
Time deposits	9,259	22,439	23,202	42,693
Other interest-bearing deposits	2,966	19,757	17,179	41,799
Interest on trading liabilities	974	3,756	4,266	6,572
Interest on short-term borrowings	1,455	11,038	11,319	17,782
Interest on term borrowings	14,106	14,683	22,027	29,020
Total interest expense	41,280	108,479	116,846	214,586
Net interest income	305,344	303,610	608,146	598,118
Provision/(provision credit) for loan losses	110,000	13,000	255,000	22,000
Net interest income after provision/(provision credit) for loan losses	195,344	290,610	353,146	576,118
Noninterest income:
Fixed income	112,421	66,414	208,056	120,163
Deposit transactions and cash management	30,787	32,374	61,077	63,995
Brokerage, management fees and commissions	13,800	14,120	29,205	26,753
Trust services and investment management	7,733	7,888	14,928	14,914
Bankcard income	6,652	6,355	13,905	13,307
Bank-owned life insurance (BOLI)	6,380	5,126	10,969	9,528
Debt securities gains/(losses), net (Note 3 and Note 8)	0	(267)	0	(267)
Equity securities gains/(losses), net (Note 3)	(1,493)	316	(1,468)	347
All other income and commissions (Note 7)	29,989	25,667	44,353	50,298
Total noninterest income	206,269	157,993	381,025	299,038
Adjusted gross income after provision/(provision credit) for loan losses	401,613	448,603	734,171	875,156
Noninterest expense:
Employee compensation, incentives, and benefits	200,259	171,643	383,729	349,568
Occupancy	21,445	20,719	41,008	41,412
Computer software	16,522	15,001	32,549	30,140
Operations services	11,654	11,713	23,346	23,201
Professional fees	10,310	11,291	17,306	23,590
Equipment rentals, depreciation, and maintenance	8,384	8,375	16,936	17,204
FDIC premium expense	6,432	4,247	13,174	8,520
Communications and courier	5,868	7,380	11,396	13,833
Amortization of intangible assets	5,284	6,206	10,592	12,422
Contract employment and outsourcing	5,236	3,078	10,172	6,449
Advertising and public relations	2,525	5,574	9,981	12,816
Legal fees	2,498	6,486	4,321	9,317
All other expense (Note 7)	35,751	28,681	68,977	48,012
Total noninterest expense	332,168	300,394	643,487	596,484
Income/(loss) before income taxes	69,445	148,209	90,684	278,672
Provision/(benefit) for income taxes	12,780	34,467	17,547	61,525
Net income/(loss)	56,665	113,742	73,137	217,147
Net income attributable to noncontrolling interest	2,851	2,852	5,703	5,672
Net income/(loss) attributable to controlling interest	53,814	110,890	67,434	211,475
Preferred stock dividends	1,550	1,550	3,100	3,100
Net income/(loss) available to common shareholders	$ 52,264	$ 109,340	$ 64,334	$ 208,375
Basic earnings/(loss) per share (Note 9) (in dollars per share)	$ 0.17	$ 0.35	$ 0.21	$ 0.66
Diluted earnings/(loss) per share (Note 9) (in dollars per share)	$ 0.17	$ 0.35	$ 0.21	$ 0.66
Weighted average common shares (Note 9) (in shares)	312,090	314,063	311,843	315,740
Diluted average common shares (Note 9) (in shares)	312,936	315,786	312,792	317,720