CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Statement [Abstract]
Interest and fees on loans	$ 62,288	$ 46,519	$ 124,575	$ 91,776
Interest and dividends on securities	9,076	9,605	18,346	19,209
Interest on interest bearing deposits and other investments	873	585	1,791	1,201
Total Interest Income	72,237	56,709	144,712	112,186
Interest on deposits	4,825	1,988	8,698	3,526
Interest on time certificates	5,724	2,629	10,683	4,808
Interest on borrowed money	1,552	1,885	4,421	3,883
Total Interest Expense	12,101	6,502	23,802	12,217
Net Interest Income	60,136	50,207	120,910	99,969
Provision for loan losses	2,551	2,529	3,948	3,614
Net Interest Income after Provision for Loan Losses	57,585	47,678	116,962	96,355
Noninterest income
Other income	14,043	12,769	26,888	25,167
Securities losses, net	(466)	(48)	(475)	(150)
Total Noninterest Income (Note I)	13,577	12,721	26,413	25,017
Total Noninterest Expenses (Note I)	41,000	38,246	84,099	75,410
Income Before Income Taxes	30,162	22,153	59,276	45,962
Provision for income taxes	6,909	5,189	13,318	10,971
Net Income	$ 23,253	$ 16,964	$ 45,958	$ 34,991
Share Data
Net income per share of common stock - diluted (in dollars per share)	$ 0.45	$ 0.35	$ 0.88	$ 0.73
Net income per share of common stock - basic (in dollars per share)	$ 0.45	$ 0.36	$ 0.89	$ 0.74
Average common shares outstanding - diluted (in shares)	51,952	47,974	51,998	47,828
Average shares outstanding - basic (in shares)	51,446	47,165	51,403	47,059