Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Interest income
Loans	$ 94,118	$ 74,407
Securities
Taxable	3,994	4,352
Tax-exempt	1,685	2,574
Other	583	556
Total interest income	100,380	81,889
Interest expense
Deposits	8,059	5,149
Borrowings	3,081	2,725
Total interest expense	11,140	7,874
Net interest income	89,240	74,015
Provision for loan losses	1,750	1,500
Net interest income after provision for loan losses	87,490	72,515
Noninterest income
Service charges on deposit accounts	8,473	7,931
Fees and commissions	5,685	5,199
Insurance commissions	2,005	1,860
Wealth management revenue	3,262	2,884
Mortgage banking income	10,960	10,504
BOLI income	945	1,113
Other	2,623	2,530
Total noninterest income	33,953	32,021
Noninterest expense
Salaries and employee benefits	48,784	42,209
Data processing	4,244	4,234
Net occupancy and equipment	9,822	9,319
Other real estate owned	657	532
Professional fees	2,138	2,067
Advertising and public relations	2,203	1,592
Intangible amortization	1,651	1,563
Communications	1,969	1,863
Extinguishment of debt	0	205
Merger and conversion related expenses	900	345
Other	5,576	5,380
Total noninterest expense	77,944	69,309
Income before income taxes	43,499	35,227
Income taxes	9,673	11,255
Net income (loss)	$ 33,826	$ 23,972
Basic earnings per share (usd per share)	$ 0.69	$ 0.54
Diluted earnings per share (usd per share)	0.68	0.54
Cash dividends per common share (usd per share)	$ 0.19	$ 0.18