Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Interest income:
Loans	$ 56,598	$ 41,742
Mortgage-backed securities	3,685	2,660
Debt securities, equity investments and other	2,554	1,612
Total interest income	62,837	46,014
Interest expense:
Deposits	4,464	2,781
Borrowed funds	2,662	1,750
Total interest expense	7,126	4,531
Net interest income	55,711	41,483
Provision for loan losses	1,371	700
Net interest income after provision for loan losses	54,340	40,783
Other income:
Bankcard services revenue	1,919	1,579
Wealth management revenue	553	516
Fees and service charges	4,674	3,807
Net gain on sales of loans	617	42
Net unrealized loss on equity investments	(138)	0
Net loss from other real estate operations	(412)	(733)
Income from Bank Owned Life Insurance	1,141	772
Other	556	12
Total other income	8,910	5,995
Operating expenses:
Compensation and employee benefits	21,251	16,138
Occupancy	4,567	2,767
Equipment	1,903	1,698
Marketing	561	740
Federal deposit insurance	930	661
Data processing	3,176	2,396
Check card processing	989	953
Professional fees	1,283	960
Other operating expense	3,016	2,644
Amortization of core deposit intangible	832	524
Branch consolidation (income) expense	(176)	33
Merger related expenses	18,486	1,447
Total operating expenses	56,818	30,961
Income before provision for income taxes	6,432	15,817
Provision for income taxes	1,005	3,799
Net income	$ 5,427	$ 12,018
Basic earnings per share (in dollars per share)	$ 0.12	$ 0.38
Diluted earnings per share (in dollars per share)	$ 0.12	$ 0.36
Average basic shares outstanding (in usd per share)	43,880	31,901
Average diluted shares outstanding (in usd per share)	44,846	33,090