Consolidated Statements of Income (unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Loans including fees:
Taxable	$ 145,417	$ 125,468	$ 432,642	$ 368,467
Nontaxable	3,905	4,075	12,114	11,933
Investment securities:
Taxable	28,884	19,391	86,162	56,562
Nontaxable	7,119	6,295	21,776	19,502
Money market and other interest-earning investments	528	140	1,140	347
Total interest income	185,853	155,369	553,834	456,811
Interest Expense
Deposits	18,707	11,189	53,670	27,583
Federal funds purchased and interbank borrowings	1,484	1,191	5,219	2,855
Securities sold under agreements to repurchase	715	535	2,048	1,328
Federal Home Loan Bank advances	9,123	8,880	29,093	25,484
Other borrowings	2,728	2,732	8,430	8,184
Total interest expense	32,757	24,527	98,460	65,434
Net interest income	153,096	130,842	455,374	391,377
Provision for loan losses	1,437	750	3,483	3,576
Net interest income after provision for loan losses	151,659	130,092	451,891	387,801
Noninterest Income
Wealth management fees	9,160	9,022	27,604	27,794
Service charges on deposit accounts	11,860	11,028	34,201	32,552
Debit card and ATM fees	5,370	4,706	16,292	14,651
Mortgage banking revenue	8,850	4,348	20,996	13,729
Investment product fees	5,244	5,073	16,106	15,170
Capital markets income	4,560	2,700	10,227	4,094
Company-owned life insurance	2,703	2,958	8,602	7,993
Net debt securities gains (losses)	424	135	1,486	2,417
Other income	5,790	5,987	16,077	18,751
Total noninterest income	53,961	45,957	151,591	137,151
Noninterest Expense
Salaries and employee benefits	71,729	63,158	214,478	193,929
Occupancy	11,934	12,578	41,071	38,731
Equipment	3,954	3,652	12,945	10,945
Marketing	4,105	3,406	12,267	11,065
Data processing	8,961	8,628	28,509	26,752
Communication	2,349	2,473	8,252	8,309
Professional fees	5,037	3,235	12,868	8,888
Loan expenses	1,811	1,564	5,380	5,151
FDIC assessment	960	2,722	4,501	8,528
Amortization of intangibles	4,168	3,283	12,965	10,308
Amortization of tax credit investments	1,211	9,233	2,039	21,807
Other expense	6,366	5,444	18,469	22,580
Total noninterest expense	122,585	119,376	373,744	366,993
Income before income taxes	83,035	56,673	229,738	157,959
Income tax expense	13,254	5,325	40,717	14,627
Net income	$ 69,781	$ 51,348	$ 189,021	$ 143,332
Net income per common share - basic	$ 0.41	$ 0.34	$ 1.10	$ 0.95
Net income per common share - diluted	$ 0.41	$ 0.34	$ 1.09	$ 0.94
Weighted average number of common shares outstanding - basic	170,746	151,930	172,807	151,844
Weighted average number of common shares outstanding - diluted	171,551	152,784	173,527	152,616
Dividends per common share	$ 0.13	$ 0.13	$ 0.39	$ 0.39