Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Interest income:
Interest and fees on loans	$ 94,019	$ 65,626	$ 231,643	$ 191,076
Interest and dividends on investment securities:
Taxable	11,634	7,878	30,139	23,898
Exempt from federal taxes	795	820	2,442	2,557
Interest on deposits in banks	2,314	607	4,859	1,734
Interest on federal funds sold	3	4	8	9
Total interest income	108,765	74,935	269,091	219,274
Interest expense:
Interest on deposits	6,197	3,099	15,326	9,435
Interest on securities sold under repurchase agreements	350	100	870	282
Interest on other debt	608	457	1,542	1,357
Interest on subordinated debentures held by subsidiary trusts	819	698	2,346	2,036
Total interest expense	7,974	4,354	20,084	13,110
Net interest income	100,791	70,581	249,007	206,164
Provision for loan losses	3,443	2,363	7,528	8,913
Net interest income after provision for loan losses	97,348	68,218	241,479	197,251
Non-interest income:
Payment services revenues	12,366	9,019	31,036	25,658
Mortgage banking revenues	8,251	11,303	22,442	28,311
Wealth management revenues	5,544	4,995	15,641	14,736
Service charges on deposit accounts	5,904	4,692	15,314	13,781
Other service charges, commissions and fees	3,584	2,628	9,618	8,081
Loss on termination of interest rate swap	(1,128)	0	(1,128)	0
Investment securities gains (losses), net	771	225	778	312
Other income	2,982	2,299	10,860	7,049
Non-recurring litigation recovery	0	0	0	3,750
Total non-interest income	38,274	35,161	104,561	101,678
Non-interest expense:
Salaries and wages	34,662	26,908	88,440	79,755
Employee benefits	10,185	8,610	29,612	26,285
Outsourced technology services	6,569	5,211	17,869	14,843
Occupancy, net	6,059	4,413	16,028	13,361
Furniture and equipment	3,151	2,398	8,163	7,114
OREO expense, net of income	242	8	228	109
Professional fees	1,888	1,191	4,712	3,635
FDIC insurance premiums	1,666	1,212	3,327	3,668
Mortgage servicing rights amortization	816	854	2,135	2,210
Mortgage servicing rights impairment (recovery)	(12)	(16)	(84)	(21)
Core deposit intangibles amortization	1,885	875	3,577	2,529
Other expenses	14,529	12,542	40,887	36,740
Acquisition related expenses	13,016	1,197	23,854	1,197
Total non-interest expense	94,656	65,403	238,748	191,425
Income before income tax expense	40,966	37,976	107,292	107,504
Income tax expense	13,707	12,783	35,039	36,633
Net income	$ 27,259	$ 25,193	$ 72,253	$ 70,871
Basic earnings per common share (in dollars per share)	$ 0.49	$ 0.57	$ 1.46	$ 1.59
Diluted earnings per common share (in dollars per share)	$ 0.48	$ 0.56	$ 1.45	$ 1.58