Consolidated Statements of Income - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
INTEREST INCOME
Interest and fees on loans		$ 50,170	$ 33,703
Interest on investment securities:
Taxable interest income		3,032	1,824
Tax-exempt interest income		380	443
Other, principally overnight investments		1,479	498
Total interest income		55,061	36,468
INTEREST EXPENSE
Savings, checking and money market accounts		979	522
Time deposits		1,411	714
Other time deposits		283	166
Borrowings		1,881	770
Total interest expense		4,554	2,172
Net interest income		50,507	34,296
Provision (reversal) for loan losses		(3,659)	723
Net interest income after provision for loan losses		54,166	33,573
NONINTEREST INCOME
Service charges on deposit accounts		3,263	2,614
Other service charges, commissions and fees		4,597	3,173
Fees from presold mortgage loans		859	768
Commissions from sales of insurance and financial products		1,940	840
SBA consulting fees		1,141	1,260
SBA loan sale gains		3,802	622
Bank-owned life insurance income	[1]	623	508
Foreclosed property gains (losses), net		(288)	25
Securities gains (losses), net			(235)
Other gains (losses), net		4	234
Total noninterest income		15,941	9,809
NONINTEREST EXPENSES
Salaries expense		19,398	13,950
Employee benefits expense		4,607	3,910
Total personnel expense		24,005	17,860
Occupancy expense		2,802	2,184
Equipment related expenses		1,252	1,058
Merger and acquisition expenses		2,761	2,373
Intangibles amortization expense		1,672	576
Other operating expenses		11,106	8,021
Total noninterest expenses		43,598	32,072
Income before income taxes		26,509	11,310
Income tax expense		5,836	3,755
Net income available to common shareholders		$ 20,673	$ 7,555
Earnings per common share: Basic		$ 0.70	$ 0.34
Earnings per common share: Diluted		0.70	0.34
Dividends declared per common share		$ 0.10	$ 0.08
Weighted average common shares outstanding: Basic		29,533,869	21,983,963
Weighted average common shares outstanding: Diluted		29,624,150	22,064,923

[1] Not within the scope of ASC 606.