CONSOLIDATED CONDENSED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Interest income:
Interest and fees on loans	$ 299,493	$ 180,464
Interest on investment securities available-for-sale	32,847	25,635
Interest on investment securities held-to-maturity	131	197
Interest on loans held-for-sale	12,144	1,283
Interest on trading securities	14,408	6,353
Interest on other earning assets	4,332	4,879
Total interest income	363,355	218,811
Interest on deposits:
Savings	14,900	9,210
Time deposits	9,525	2,833
Other interest-bearing deposits	10,608	4,143
Interest on trading liabilities	5,124	3,781
Interest on short-term borrowings	10,042	1,392
Interest on term borrowings	11,983	7,744
Total interest expense	62,182	29,103
Net interest income	301,173	189,708
Provision/(provision credit) for loan losses	(1,000)	(1,000)
Net interest income after provision/(provision credit) for loan losses	302,173	190,708
Noninterest income:
Fixed income	45,506	50,678
Deposit transactions and cash management	31,162	24,565
Brokerage, management fees and commissions	13,483	11,906
Bankcard income	11,267	5,455
Trust services and investment management	7,277	6,653
Bank-owned life insurance	3,993	3,247
Debt securities gains/(losses), net	52	44
Equity securities gains/(losses), net	34	0
All other income and commissions	23,243	14,391
Total noninterest income	136,017	116,939
Adjusted gross income after provision/(provision credit) for loan losses	438,190	307,647
Noninterest expense:
Employee compensation, incentives, and benefits	171,254	134,494
Occupancy	20,451	12,340
Operations services	15,561	10,875
Computer software	15,132	10,799
Professional fees	12,272	4,746
Equipment rentals, depreciation, and maintenance	10,018	6,351
FDIC premium expense	8,614	5,739
Communications and courier	8,232	3,800
Amortization of intangible assets	6,474	1,232
Contract employment and outsourcing	4,053	2,958
Advertising and public relations	3,599	4,601
Legal fees	2,345	5,283
Repurchase and foreclosure provision/(provision credit)	(72)	(238)
All other expense	35,332	19,225
Total noninterest expense	313,265	222,205
Income/(loss) before income taxes	124,925	85,442
Provision/(benefit) for income taxes	29,931	27,054
Net income/(loss)	94,994	58,388
Net income attributable to noncontrolling interest	2,820	2,820
Net income/(loss) attributable to controlling interest	92,174	55,568
Preferred stock dividends	1,550	1,550
Net income/(loss) available to common shareholders	$ 90,624	$ 54,018
Basic earnings/(loss) per share (in dollars per share)	$ 0.28	$ 0.23
Diluted earnings/(loss) per share (in dollars per share)	$ 0.27	$ 0.23
Weighted average common shares (in shares)	326,489	233,076
Diluted average common shares (in shares)	330,344	236,855
Cash dividends declared per common share (in dollars per share)	$ 0.12	$ 0.09