Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
INTEREST INCOME
Interest and fees on loans	$ 152,417	$ 146,629	$ 304,362	$ 290,016
Interest and dividends on investment securities:
Taxable	23,868	26,109	48,960	52,366
Tax exempt	7,565	7,030	15,452	14,001
Other interest	1,771	1,862	3,463	3,311
Total interest income	185,621	181,630	372,237	359,694
INTEREST EXPENSE
Interest on deposits	8,141	6,195	15,760	12,354
Interest on Federal funds purchased and securities sold under agreements to repurchase	235	306	466	611
Interest on other short-term funding	115	280	196	396
Interest on long-term funding	10,642	6,146	21,514	12,657
Total interest expense	19,133	12,927	37,936	26,018
NET INTEREST INCOME	166,488	168,703	334,301	333,676
Provision for credit losses	5,000	5,000	9,500	10,000
Net interest income after provision for credit losses	161,488	163,703	324,801	323,676
NONINTEREST INCOME
Trust service fees	12,515	12,017	24,602	23,728
Service charges on deposit accounts	15,703	17,412	31,509	33,812
Card-based and other nondeposit fees	13,597	12,577	26,013	25,086
Insurance commissions	20,077	13,651	39,805	25,968
Brokerage and annuity commissions	4,192	4,520	7,875	8,553
Mortgage banking, net	9,941	5,362	17,349	11,723
Capital market fees, net	2,692	2,099	5,159	4,421
Bank owned life insurance income	2,381	3,011	5,256	7,331
Asset gains, net	1,893	899	2,989	1,627
Investment securities gains, net	1,242	34	1,242	412
Other	2,288	665	4,798	3,107
Total noninterest income	86,521	72,247	166,597	145,768
NONINTEREST EXPENSE
Personnel expense	102,986	97,793	203,138	195,491
Occupancy	14,308	13,785	31,991	29,345
Equipment	5,739	6,227	11,511	12,503
Technology	16,354	14,594	31,912	27,318
Business development and advertising	6,829	5,077	12,156	10,139
Other intangible amortization	888	991	1,689	1,982
Loan expense	3,681	3,620	6,677	6,407
Legal and professional fees	4,344	4,436	8,882	8,624
Foreclosure / OREO expense	1,303	1,575	2,728	3,471
FDIC expense	6,000	4,945	12,500	9,946
Other	14,384	14,882	27,887	30,357
Total noninterest expense	176,816	167,925	351,071	335,583
Income before income taxes	71,193	68,025	140,327	133,861
Income tax expense	21,793	21,660	44,255	42,297
Net income	49,400	46,365	96,072	91,564
Preferred stock dividends	1,545	1,278	2,773	2,522
Net income available to common equity	$ 47,855	$ 45,087	$ 93,299	$ 89,042
Earnings per common share:
Basic (in usd per share)	$ 0.32	$ 0.28	$ 0.62	$ 0.55
Diluted (in usd per share)	$ 0.31	$ 0.28	$ 0.61	$ 0.55
Average common shares outstanding:
Basic (in shares)	149,903	159,940	149,986	160,699
Diluted (in shares)	151,108	160,838	151,129	161,513