Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
INTEREST INCOME
Interest and fees on loans	$ 55,652	$ 51,451	$ 109,612	$ 101,621
Interest on investment securities:
Taxable interest income	4,993	2,465	9,730	5,051
Tax-exempt interest income	271	368	608	748
Other, principally overnight investments	2,106	2,451	4,807	4,376
Total interest income	63,022	56,735	124,757	111,796
INTEREST EXPENSE
Savings, checking and money market accounts	2,335	1,132	4,344	2,111
Time deposits of $100,000 or more	3,522	1,850	6,700	3,325
Other time deposits	467	251	857	470
Borrowings	2,289	2,270	5,086	4,151
Total interest expense	8,613	5,503	16,987	10,057
Net interest income	54,409	51,232	107,770	101,739
Provision (reversal) for loan losses	(308)	(710)	192	(4,369)
Net interest income after provision for loan losses	54,717	51,942	107,578	106,108
NONINTEREST INCOME
Service charges on deposit accounts	3,210	3,122	6,155	6,385
Other service charges, commissions and fees	5,786	4,674	11,034	9,159
Fees from presold mortgage loans	857	796	1,402	1,655
Commissions from sales of insurance and financial products	2,204	2,119	4,233	4,059
SBA consulting fees	921	1,126	2,184	2,267
SBA loan sale gains	3,069	2,598	5,131	6,400
Bank-owned life insurance income	631	628	1,277	1,251
Foreclosed property gains (losses), net	(381)	(99)	(626)	(387)
Other gains (losses), net	(308)	908	(226)	912
Total noninterest income	15,989	15,872	30,564	31,701
NONINTEREST EXPENSES
Salaries expense	19,732	18,446	38,697	37,844
Employee benefits expense	4,418	4,084	9,006	8,691
Total personnel expense	24,150	22,530	47,703	46,535
Occupancy expense	2,729	2,543	5,483	5,345
Equipment related expenses	1,183	1,241	2,552	2,493
Merger and acquisition expenses	103	640	213	3,401
Intangibles amortization expense	1,242	1,506	2,574	3,066
Other operating expenses	11,032	10,174	21,185	21,280
Total noninterest expenses	40,439	38,634	79,710	82,120
Income before income taxes	30,267	29,180	58,432	55,689
Income tax expense	6,408	6,450	12,288	12,286
Net income	$ 23,859	$ 22,730	$ 46,144	$ 43,403
Earnings per common share:
Basic (in dollars per share)	$ 0.80	$ 0.77	$ 1.55	$ 1.47
Diluted (in dollars per share)	0.80	0.77	1.55	1.46
Dividends declared per common share (in dollars per share)	$ 0.12	$ 0.10	$ 0.24	$ 0.20
Weighted average common shares outstanding:
Basic (in shares)	29,626,931	29,544,747	29,607,074	29,539,308
Diluted (in shares)	29,796,941	29,632,738	29,808,859	29,630,822