Segment Reporting - Schedule of Segment Reporting (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019 USD ($)	Sep. 30, 2018 USD ($)	Sep. 30, 2019 USD ($) segment	Sep. 30, 2018 USD ($)	Dec. 31, 2018 USD ($)
Segment Reporting [Abstract]
Reportable business segments | segment			3
Segment Reporting Information [Line Items]
Total assets	$ 5,353,611	$ 4,801,998	$ 5,353,611	$ 4,801,998	$ 4,984,347
Interest income	54,300	49,255	160,724	139,249
Interest expense	11,655	8,832	33,921	22,564
Net interest income	42,645	40,423	126,803	116,685
Provision for loan and lease losses	1,530	2,745	6,291	20,207
Noninterest income	16,599	14,861	49,252	45,757
Intangible expenses	378	479	1,221	1,685
Restructuring charges				571
Other noninterest expense	35,892	33,892	107,384	101,587
Intersegment (revenues) expense	0	0	0	0
Income before income taxes	21,444	18,168	61,159	38,392
Income tax expense	3,782	3,204	10,950	6,221
Net income	17,662	14,964	50,209	32,171
Capital expenditures	215	745	1,647	2,698
Banking [Member]
Segment Reporting Information [Line Items]
Total assets	5,256,435	4,711,093	5,256,435	4,711,093	4,895,732
Interest income	54,280	49,238	160,667	139,204
Interest expense	10,394	7,571	30,138	18,781
Net interest income	43,886	41,667	130,529	120,423
Provision for loan and lease losses	1,530	2,745	6,291	20,207
Noninterest income	6,491	5,070	17,476	15,320
Intangible expenses	209	240	675	898
Restructuring charges				571
Other noninterest expense	28,999	26,542	84,876	80,790
Intersegment (revenues) expense	(307)	(512)	(901)	(1,098)
Income before income taxes	19,946	17,722	57,064	34,375
Income tax expense	3,719	3,171	10,499	5,006
Net income	16,227	14,551	46,565	29,369
Capital expenditures	52	570	1,187	2,360
Wealth Management [Member]
Segment Reporting Information [Line Items]
Total assets	43,305	38,042	43,305	38,042	39,090
Interest income	12	9	33	22
Interest expense	0	0	0	0
Net interest income	12	9	33	22
Provision for loan and lease losses	0	0	0	0
Noninterest income	6,049	5,795	17,924	17,397
Intangible expenses	103	136	313	415
Restructuring charges				0
Other noninterest expense	3,757	3,547	11,339	10,969
Intersegment (revenues) expense	177	377	504	686
Income before income taxes	2,024	1,744	5,801	5,349
Income tax expense	391	493	1,115	1,636
Net income	1,633	1,251	4,686	3,713
Capital expenditures	5	73	80	162
Insurance [Member]
Segment Reporting Information [Line Items]
Total assets	33,239	29,299	33,239	29,299	30,117
Interest income	0	0	0	0
Interest expense	0	0	0	0
Net interest income	0	0	0	0
Provision for loan and lease losses	0	0	0	0
Noninterest income	4,039	3,845	13,537	12,835
Intangible expenses	66	103	233	372
Restructuring charges				0
Other noninterest expense	2,990	3,087	9,188	9,425
Intersegment (revenues) expense	130	135	397	412
Income before income taxes	853	520	3,719	2,626
Income tax expense	72	156	334	775
Net income	781	364	3,385	1,851
Capital expenditures	24	16	88	25
Other Segments [Member]
Segment Reporting Information [Line Items]
Total assets	20,632	23,564	20,632	23,564	$ 19,408
Interest income	8	8	24	23
Interest expense	1,261	1,261	3,783	3,783
Net interest income	(1,253)	(1,253)	(3,759)	(3,760)
Provision for loan and lease losses	0	0	0	0
Noninterest income	20	151	315	205
Intangible expenses	0	0	0	0
Restructuring charges				0
Other noninterest expense	146	716	1,981	403
Intersegment (revenues) expense	0	0	0	0
Income before income taxes	(1,379)	(1,818)	(5,425)	(3,958)
Income tax expense	(400)	(616)	(998)	(1,196)
Net income	(979)	(1,202)	(4,427)	(2,762)
Capital expenditures	$ 134	$ 86	$ 292	$ 151