Consolidated Statements Of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Interest Income
Interest and fees on loans	$ 114,563	$ 109,224	$ 81,221
Interest on U.S. government and sponsored enterprise obligations (taxable)	16,879	16,082	15,091
Interest on state and political subdivision obligations (nontaxable)	2,764	2,836	2,208
Interest on other investments	1,898	1,484	624
Total interest income	136,104	129,626	99,144
Interest Expense
Interest on deposits	11,811	8,633	6,511
Interest on borrowings	5,585	4,506	3,457
Interest on subordinated debentures	3,408	3,415	2,724
Total interest expense	20,804	16,554	12,692
Net interest income	115,300	113,072	86,452
Provision for credit losses	3,035	5,258	1,936
Net interest income after provision for credit losses	112,265	107,814	84,516
Non-Interest Income
Debit card income	8,079	7,578	5,277
Service charges on deposit accounts	7,529	7,210	6,423
Mortgage banking income, net	7,363	6,258	2,031
Income from fiduciary services	5,108	4,960	4,918
Bank-owned life insurance	2,370	2,594	1,680
Brokerage and insurance commissions	2,147	2,074	1,699
Other service charges and fees	2,029	1,962	1,573
Net gain on sale of securities	855	51	4
Other income	3,119	6,934	3,877
Total non-interest income	38,599	39,621	27,482
Non-Interest Expenses
Salaries and employee benefits	49,965	48,072	37,220
Furniture, equipment and data processing	9,894	9,557	8,057
Net occupancy costs	6,884	7,088	5,695
Consulting and professional fees	3,118	3,234	2,625
Other real estate owned and collection costs, net	971	3,128	2,491
Regulatory assessments	2,166	2,777	2,184
Debit card expense	2,755	2,584	1,936
Amortization of intangible assets	1,809	1,903	1,306
Merger and acquisition costs	0	866	10,415
Other expenses	10,948	10,687	9,210
Total non-interest expense	88,510	89,896	81,139
Income before income tax expense	62,354	57,539	30,859
Income Tax Expense	33,878	17,472	9,907
Net income	$ 28,476	$ 40,067	$ 20,952
Per Share Data
Basic earnings per share	$ 1.83	$ 2.59	$ 1.73
Diluted earnings per share	$ 1.82	$ 2.57	$ 1.73
Weighted average number of common shares outstanding	15,509,665	15,422,160	12,031,294
Diluted weighted average number of common shares outstanding	15,588,347	15,504,239	12,074,579