CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
INTEREST INCOME
Loans	$ 121,476	$ 126,341	$ 84,173
Investment securities and other interest-earning assets	9,767	9,680	6,654
Total interest income	131,243	136,021	90,827
INTEREST EXPENSE
Deposits	13,284	12,041	5,914
FHLB advances and other borrowings	4,802	4,701	2,023
Subordinated debentures	1,751	1,733	1,609
Total interest expense	19,837	18,475	9,546
Net interest income before provision for credit losses	111,406	117,546	81,281
Provision for credit losses	1,526	2,258	2,253
Net interest income after provision for credit losses	109,880	115,288	79,028
NONINTEREST INCOME
Loan servicing fees	398	408	345
Earnings on bank-owned life insurance	910	929	611
Net gain from sales of loans	1,729	1,929	2,958
Net gain from sales of investment securities	427	0	6
Other income	1,460	944	1,414
Total noninterest income	7,681	6,970	7,666
NONINTEREST EXPENSE
Compensation and benefits	33,388	33,838	28,873
Premises and occupancy	7,535	7,504	4,781
Data processing	2,930	3,868	2,702
Other real estate owned operations, net	3	1	1
FDIC insurance premiums	800	750	611
Legal, audit and professional expense	2,998	3,105	1,839
Marketing expense	1,497	1,700	1,530
Office, telecommunications and postage expense	1,210	1,579	1,080
Loan expense	873	1,046	591
Deposit expense	3,583	3,105	1,676
Merger-related expense	655	2,597	936
CDI amortization	4,436	4,631	2,274
Other expense	3,669	3,515	2,914
Total noninterest expense	63,577	67,239	49,808
Net income before income taxes	53,984	55,019	36,886
Income tax	15,266	15,376	8,884
Net income	$ 38,718	$ 39,643	$ 28,002
EARNINGS PER SHARE
Basic (in dollars per share)	$ 0.62	$ 0.64	$ 0.61
Diluted (in dollars per share)	$ 0.62	$ 0.63	$ 0.60
WEIGHTED AVERAGE SHARES OUTSTANDING
Basic (in shares)	61,987,605	61,917,184	45,893,496
Diluted (in shares)	62,285,783	62,457,100	46,652,059
Service charges on deposit accounts
NONINTEREST INCOME
Noninterest income	$ 1,330	$ 1,351	$ 1,150
Other service fee income
NONINTEREST INCOME
Noninterest income	356	270	146
Debit card interchange fee income
NONINTEREST INCOME
Noninterest income	$ 1,071	$ 1,139	$ 1,036