Segment Reporting Schedule of Segment Reporting (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]
Interest income	$ 25,623	$ 25,585	$ 25,513	$ 24,738	$ 18,995	$ 19,219	$ 18,725	$ 18,946	$ 101,459	$ 75,885	$ 77,579
Interest expense	2,278	2,220	2,133	1,434	1,039	978	981	998	8,065	3,996	5,117
Net interest income	23,345	23,365	23,380	23,304	17,956	18,241	17,744	17,948	93,394	71,889	72,462
Provision for loan and lease losses	917	670	1,141	1,074	648	233	1,251	1,475	3,802	3,607	11,228
Noninterest income	13,312	12,855	13,351	13,431	12,076	12,510	11,924	12,141	52,949	48,651	46,784
Intangible expenses									2,567	2,167	157
Other noninterest expense									102,948	85,087	80,976
Intersegment (revenue) expense									0	0	0
Income before income taxes	9,711	10,307	8,758	8,250	6,822	8,499	6,627	7,731	37,026	29,679	26,885
Income taxes	2,553	2,779	2,292	2,134	1,632	2,264	1,547	2,005	9,758	7,448	5,696
Net income	7,158	$ 7,528	$ 6,466	$ 6,116	5,190	$ 6,235	$ 5,080	$ 5,726	27,268	22,231	21,189
Total assets	2,879,451				2,235,321				2,879,451	2,235,321
Capital expenditures									6,730	5,940	3,851
Banking [Member]
Segment Reporting Information [Line Items]
Interest income									101,426	75,850	77,517
Interest expense									8,065	3,998	5,124
Net interest income									93,361	71,852	72,393
Provision for loan and lease losses									3,802	3,607	11,228
Noninterest income									19,458	16,170	22,053
Intangible expenses									293	19	22
Other noninterest expense									78,091	65,293	61,986
Intersegment (revenue) expense									(2,115)	(2,192)	(1,732)
Income before income taxes									32,748	21,295	22,942
Income taxes									7,693	4,043	4,255
Net income									25,055	17,252	18,687
Total assets	2,797,746				2,154,485				2,797,746	2,154,485
Capital expenditures									5,003	5,607	3,079
Wealth Management [Member]
Segment Reporting Information [Line Items]
Interest income									1	1	1
Interest expense									0	0	0
Net interest income									1	1	1
Provision for loan and lease losses									0	0	0
Noninterest income									18,874	19,918	14,938
Intangible expenses									410	1,138	326
Other noninterest expense									12,276	11,752	9,018
Intersegment (revenue) expense									867	965	735
Income before income taxes									5,322	6,064	4,860
Income taxes									2,054	2,269	1,850
Net income									3,268	3,795	3,010
Total assets	33,950				34,195				33,950	34,195
Capital expenditures									19	73	13
Insurance [Member]
Segment Reporting Information [Line Items]
Interest income									0	0	0
Interest expense									0	0	0
Net interest income									0	0	0
Provision for loan and lease losses									0	0	0
Noninterest income									14,396	12,038	9,959
Intangible expenses									1,864	1,010	(191)
Other noninterest expense									10,849	9,198	7,943
Intersegment (revenue) expense									1,248	1,227	997
Income before income taxes									435	603	1,210
Income taxes									164	256	497
Net income									271	347	713
Total assets	24,436				22,930				24,436	22,930
Capital expenditures									58	116	46
Other Segments [Member]
Segment Reporting Information [Line Items]
Interest income									32	34	61
Interest expense									0	(2)	(7)
Net interest income									32	36	68
Provision for loan and lease losses									0	0	0
Noninterest income									221	525	(166)
Intangible expenses									0	0	0
Other noninterest expense									1,732	(1,156)	2,029
Intersegment (revenue) expense									0	0	0
Income before income taxes									(1,479)	1,717	(2,127)
Income taxes									(153)	880	(906)
Net income									(1,326)	837	(1,221)
Total assets	$ 23,319				$ 23,711				23,319	23,711
Capital expenditures									$ 1,650	$ 144	$ 713