Segment Reporting (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Segment Reporting Information [Line Items]
Total assets	$ 2,824,777	$ 2,757,495	$ 2,879,451
Interest income	25,609	24,738
Interest expense	2,211	1,434
Net interest income	23,398	23,304
Provision for loan and lease losses	326	1,074
Noninterest income	13,956	13,431
Intangible expenses	770	786
Other noninterest expense	26,169	26,625
Intersegment (revenue) expense	0	0
Income before income taxes	10,089	8,250
Income taxes	2,800	2,134
Net income	7,289	6,116
Capital expenditures	2,178	1,317
Banking [Member]
Segment Reporting Information [Line Items]
Total assets	2,746,433	2,680,245	2,797,746
Interest income	25,600	24,730
Interest expense	2,211	1,434
Net interest income	23,389	23,296
Provision for loan and lease losses	326	1,074
Noninterest income	4,673	4,450
Intangible expenses	67	74
Other noninterest expense	18,742	21,222
Intersegment (revenue) expense	(511)	(534)
Income before income taxes	9,438	5,910
Income taxes	2,357	1,161
Net income	7,081	4,749
Capital expenditures	1,839	1,197
Wealth Management [Member]
Segment Reporting Information [Line Items]
Total assets	30,134	29,993	33,950
Interest income	2	0
Interest expense	0	0
Net interest income	2	0
Provision for loan and lease losses	0	0
Noninterest income	4,572	4,624
Intangible expenses	303	394
Other noninterest expense	3,058	2,955
Intersegment (revenue) expense	219	222
Income before income taxes	994	1,053
Income taxes	383	414
Net income	611	639
Capital expenditures	15	8
Insurance [Member]
Segment Reporting Information [Line Items]
Total assets	24,715	24,447	24,436
Interest income	0	0
Interest expense	0	0
Net interest income	0	0
Provision for loan and lease losses	0	0
Noninterest income	4,720	4,255
Intangible expenses	400	318
Other noninterest expense	3,119	2,669
Intersegment (revenue) expense	292	312
Income before income taxes	909	956
Income taxes	377	399
Net income	532	557
Capital expenditures	10	39
Other Segments [Member]
Segment Reporting Information [Line Items]
Total assets	23,495	22,810	$ 23,319
Interest income	7	8
Interest expense	0	0
Net interest income	7	8
Provision for loan and lease losses	0	0
Noninterest income	(9)	102
Intangible expenses	0	0
Other noninterest expense	1,250	(221)
Intersegment (revenue) expense	0	0
Income before income taxes	(1,252)	331
Income taxes	(317)	160
Net income	(935)	171
Capital expenditures	$ 314	$ 73