Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Interest income:
Loans	$ 64,497	$ 43,329	$ 184,229	$ 127,679
Mortgage-backed securities	4,105	2,738	12,087	8,189
Debt securities, equity investments and other	2,780	1,963	7,980	5,055
Total interest income	71,382	48,030	204,296	140,923
Interest expense:
Deposits	5,799	3,126	15,510	8,821
Borrowed funds	4,079	1,848	10,125	5,389
Total interest expense	9,878	4,974	25,635	14,210
Net interest income	61,504	43,056	178,661	126,713
Provision for loan losses	907	1,165	2,984	3,030
Net interest income after provision for loan losses	60,597	41,891	175,677	123,683
Other income:
Bankcard services revenue	2,425	1,785	6,717	5,202
Net gain on sales of loans	31	17	654	74
Net unrealized loss on equity investments	(70)		(282)	0
Net (loss) income from other real estate operations	(1,582)	432	(2,975)	(196)
Income from Bank Owned Life Insurance	1,337	881	3,813	2,436
Other	836	1	1,880	23
Total other income	8,285	7,359	26,079	20,324
Operating expenses:
Compensation and employee benefits	19,694	14,673	64,189	46,138
Occupancy	4,443	2,556	13,582	7,965
Equipment	2,067	1,605	6,004	5,006
Marketing	1,021	775	2,475	2,245
Federal deposit insurance	927	713	2,857	2,079
Data processing	3,125	2,367	9,968	6,809
Check card processing	799	871	2,904	2,640
Professional fees	1,066	846	3,746	2,901
Other operating expense	3,366	2,667	9,928	8,258
Amortization of core deposit intangible	995	507	2,828	1,544
Branch consolidation expense	1,368	1,455	2,911	6,939
Merger related expenses	662	1,698	25,863	6,300
Total operating expenses	39,533	30,733	147,255	98,824
Income before provision for income taxes	29,349	18,517	54,501	45,183
Provision for income taxes	5,278	5,700	9,301	12,669
Net income	$ 24,071	$ 12,817	$ 45,200	$ 32,514
Basic earnings per share (in dollars per share)	$ 0.50	$ 0.40	$ 0.97	$ 1.01
Diluted earnings per share (in dollars per share)	$ 0.50	$ 0.39	$ 0.95	$ 0.98
Average basic shares outstanding (in usd per share)	47,685	32,184	46,451	32,073
Average diluted shares outstanding (in usd per share)	48,572	33,106	47,403	33,110
Wealth management revenue
Other income:
Other income	$ 573	$ 541	$ 1,721	$ 1,622
Fees and service charges
Other income:
Other income	$ 4,735	$ 3,702	$ 14,551	$ 11,163