Allowance For Loan Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2015	Dec. 31, 2014
Allowance for loan losses:
Beginning balance	$ 15,605	$ 16,361
Charge-offs	(2,856)	(4,224)
Recoveries	2,334	775
Provision	17,864	2,693	$ 2,373
Ending balance	32,947	15,605	16,361
Collectively evaluated for impairment				$ 17,898	$ 14,970
Individually evaluated for impairment				14,840	468
Total allowance for loan losses	15,605	16,361	16,361	32,947	15,605
Loans receivable:
Collectively evaluated for impairment				3,039,502	1,777,900
Individually evaluated for impairment				44,993	7,101
Total loans held for investment				3,130,669	1,799,155
Receivables Acquired with Deteriorated Credit Quality [Member]
Allowance for loan losses:
Purchased credit impaired				209	167
Loans receivable:
Purchased credit impaired				46,174	14,154
Commercial & Industrial [Member]
Allowance for loan losses:
Beginning balance	8,145	10,196
Charge-offs	(2,647)	(2,927)
Recoveries	2,185	118
Provision	15,447	758
Ending balance	23,130	8,145	10,196
Collectively evaluated for impairment				8,352	7,772
Individually evaluated for impairment				14,733	373
Total allowance for loan losses	8,145	10,196	10,196	23,130	8,145
Loans receivable:
Collectively evaluated for impairment				1,157,464	784,052
Individually evaluated for impairment				35,083	1,926
Total loans held for investment				1,206,452	788,410
Commercial & Industrial [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Allowance for loan losses:
Purchased credit impaired				45
Loans receivable:
Purchased credit impaired				13,905	2,432
Owner occupied commercial real estate [Member]
Allowance for loan losses:
Beginning balance	974	874
Recoveries		14
Provision	705	86
Ending balance	1,679	974	874
Collectively evaluated for impairment				1,677	971
Total allowance for loan losses	974	874	874	1,679	974
Loans receivable:
Collectively evaluated for impairment				345,911	162,171
Individually evaluated for impairment				829	173
Total loans held for investment				353,889	163,592
Owner occupied commercial real estate [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Allowance for loan losses:
Purchased credit impaired				2	3
Loans receivable:
Purchased credit impaired				7,149	1,248
Commerical real estate [Member]
Allowance for loan losses:
Beginning balance	2,942	2,216
Recoveries	77	1
Provision	1,672	725
Ending balance	4,691	2,942	2,216
Collectively evaluated for impairment				4,537	2,789
Total allowance for loan losses	2,942	2,216	2,216	4,691	2,942
Loans receivable:
Collectively evaluated for impairment				884,881	329,239
Individually evaluated for impairment				6,946	2,506
Total loans held for investment				904,115	339,006
Commerical real estate [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Allowance for loan losses:
Purchased credit impaired				154	153
Loans receivable:
Purchased credit impaired				12,288	7,261
Construction, land & land development [Member]
Allowance for loan losses:
Beginning balance	2,633	1,103
Recoveries	5
Provision	(293)	1,530
Ending balance	2,345	2,633	1,103
Collectively evaluated for impairment				2,245	2,622
Individually evaluated for impairment				92
Total allowance for loan losses	2,633	1,103	1,103	2,345	2,633
Loans receivable:
Collectively evaluated for impairment				349,660	239,625
Individually evaluated for impairment				472	969
Total loans held for investment				358,813	240,666
Construction, land & land development [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Allowance for loan losses:
Purchased credit impaired				8	11
Loans receivable:
Purchased credit impaired				8,681	72
Residential mortgage [Member]
Allowance for loan losses:
Beginning balance	645	654
Charge-offs	(63)
Recoveries	36	20
Provision	198	(29)
Ending balance	816	645	654
Collectively evaluated for impairment				801	645
Individually evaluated for impairment				15
Total allowance for loan losses	645	654	654	816	645
Loans receivable:
Collectively evaluated for impairment				287,843	252,648
Individually evaluated for impairment				1,489	1,277
Total loans held for investment				293,483	257,066
Residential mortgage [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Loans receivable:
Purchased credit impaired				4,151	3,141
Consumer and other [Member]
Allowance for loan losses:
Beginning balance	266	1,318
Charge-offs	(146)	(1,297)
Recoveries	31	622
Provision	135	(377)
Ending balance	286	266	1,318
Collectively evaluated for impairment				286	171
Individually evaluated for impairment					95
Total allowance for loan losses	$ 266	$ 1,318	$ 1,318	286	266
Loans receivable:
Collectively evaluated for impairment				13,743	10,165
Individually evaluated for impairment				174	250
Total loans held for investment				$ 13,917	$ 10,415