Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Interest income
Loans	$ 127,011	$ 98,656	$ 253,312	$ 192,774
Securities
Taxable	7,730	5,700	15,655	9,694
Tax-exempt	1,291	1,649	2,700	3,334
Other	1,830	569	3,289	1,152
Total interest income	137,862	106,574	274,956	206,954
Interest expense
Deposits	20,991	10,919	40,763	18,978
Borrowings	4,071	3,266	8,246	6,347
Total interest expense	25,062	14,185	49,009	25,325
Net interest income	112,800	92,389	225,947	181,629
Provision for loan losses	900	1,810	2,400	3,560
Net interest income after provision for loan losses	111,900	90,579	223,547	178,069
Noninterest income
Service charges on deposit accounts	8,605	8,271	17,707	16,744
Fees and commissions	7,047	5,917	13,518	11,602
Insurance commissions	2,190	2,110	4,306	4,115
Wealth management revenue	3,601	3,446	6,925	6,708
Mortgage banking income	16,620	12,839	27,021	23,799
Net (loss) gain on sales of securities	(8)	0	5	0
BOLI income	1,340	1,195	2,748	2,140
Other	2,565	1,803	5,615	4,426
Total noninterest income	41,960	35,581	77,845	69,534
Noninterest expense
Salaries and employee benefits	60,325	52,010	117,675	100,794
Data processing	4,698	4,600	9,604	8,844
Net occupancy and equipment	11,544	9,805	23,379	19,627
Other real estate owned	252	232	1,256	889
Professional fees	2,431	2,176	4,885	4,314
Advertising and public relations	2,648	2,647	5,515	4,850
Intangible amortization	2,053	1,594	4,163	3,245
Communications	2,348	1,877	4,243	3,846
Merger and conversion related expenses	179	500	179	1,400
Other	6,812	3,585	11,223	9,161
Total noninterest expense	93,290	79,026	182,122	156,970
Income before income taxes	60,570	47,134	119,270	90,633
Income taxes	13,945	10,424	27,535	20,097
Net income (loss)	$ 46,625	$ 36,710	$ 91,735	$ 70,536
Basic earnings per share (usd per share)	$ 0.80	$ 0.74	$ 1.57	$ 1.43
Diluted earnings per share (usd per share)	0.80	0.74	1.56	1.42
Cash dividends per common share (usd per share)	$ 0.22	$ 0.20	$ 0.43	$ 0.39