CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended		12 Months Ended
	Jun. 30, 2016	Mar. 31, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Operating Activities
Net Income	$ 9,616	$ 8,646	$ 7,193	$ 18,262	$ 12,804
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	2,852		254	3,724	700	$ 1,936
Depreciation expense				2,456	1,446
Purchase accounting accretion, net				(3,073)	(182)
Investment securities amortization, net				1,405	1,049
Stock-based compensation expense				1,042	410
Amortization of intangible assets	476		287	952	574
Net gain on sale of investment securities	(4)		0	(4)	0
Net increase in other real estate owned valuation allowance and (gain) loss on disposition				(152)	216
Originations of mortgage loans held for sale				(107,026)	(13,949)
Proceeds from the sale of mortgage loans				97,375	12,833
Gain on sale of mortgage loans				(2,166)	(292)
Decrease (increase) in other assets				6,509	(896)
Decrease in other liabilities				(2,254)	(57)
Net cash provided by operating activities				17,050	14,656
Investing Activities
Proceeds from sales and maturities of available-for-sale securities				65,544	76,042
Purchase of available-for-sale securities				(98,728)	(56,005)
Purchase of held-to-maturity securities				(9,718)	(36,334)
Net increase in loans				(93,709)	(36,747)
Purchase of bank-owned life insurance, net of death benefit proceeds				(16,122)	0
Purchase of Federal Home Loan Bank and Federal Reserve Bank stock				(7,341)	(10)
Proceeds from the sale of other real estate owned				633	2,268
Recoveries of previously charged-off loans				254	285
Purchase of premises and equipment				(866)	(1,117)
Proceeds from the sale of premises and equipment				90	0
Net cash used by investing activities				(159,963)	(51,618)
Financing Activities
Net increase in deposits				47,605	49,085
Repayments on Federal Home Loan Bank long-term advances				(10,000)	(10,038)
Net increase (decrease) in other borrowed funds				128,071	(2,883)
Equity Issuance Costs				0	(421)
Exercise of stock options and issuance of restricted stock, net of repurchase for tax withholdings and tax benefit				377	375
Cash dividends paid on common stock				(6,185)	(4,474)
Net cash provided by financing activities				159,868	31,644
Net increase (decrease) in cash and cash equivalents				16,955	(5,318)
Cash and cash equivalents at beginning of period		$ 79,488		79,488	60,813	60,813
Cash and cash equivalents at end of period	$ 96,443		$ 55,495	96,443	55,495	$ 79,488
Supplemental information
Interest paid				7,800	3,040
Income taxes paid				103	4,350
Transfer from loans to other real estate owned				32	1,548
Held-to-maturity securities purchased but unsettled				0	3,888
Measurement-period adjustments				$ 960	$ 0