Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Interest income:
Interest and fees on loans	$ 63,729	$ 62,816
Interest and dividends on investment securities:
Taxable	8,722	8,038
Exempt from federal taxes	792	879
Interest on deposits in banks	1,212	645
Interest on federal funds sold	2	2
Total interest income	74,457	72,380
Interest expense:
Interest on deposits	4,118	3,228
Interest on securities sold under repurchase agreements	248	90
Interest on long-term debt	453	449
Interest on subordinated debentures held by subsidiary trusts	745	663
Total interest expense	5,564	4,430
Net interest income	68,893	67,950
Provision for loan losses	1,730	4,000
Net interest income after provision for loan losses	67,163	63,950
Non-interest income:
Payment services revenues	8,445	7,991
Income from the origination and sale of loans	6,548	6,727
Investment Advisory, Management and Administrative Fees	5,013	4,575
Service charges on deposit accounts	4,350	4,463
Other service charges, commissions and fees	2,676	2,608
Investment securities gains, net	2	(21)
Other income	2,073	2,293
Total non-interest income	29,107	28,636
Non-interest expense:
Salaries and wages	25,741	25,268
Employee benefits	9,616	9,609
Outsourced technology services	5,300	4,832
Occupancy, net	4,789	4,664
Furniture and equipment	2,273	2,256
OREO expense, net of income	(48)	(39)
Professional fees	1,029	1,308
FDIC insurance premiums	875	1,258
Mortgage servicing rights amortization	612	634
Mortgage servicing rights impairment recovery	(70)	15
Core deposit intangibles amortization	630	827
Other expenses	12,241	11,623
Non-core acquisition expenses	705	0
Total non-interest expense	63,693	62,255
Income before income tax expense	32,577	30,331
Income tax expense	9,451	10,207
Net income	$ 23,126	$ 20,124
Basic earnings per common share	$ 0.52	$ 0.45
Diluted earnings per common share	$ 0.51	$ 0.45