CONDENSED 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
Income Statement [Abstract]
Interest and fees on loans	$ 63,092	$ 48,713	$ 187,667	$ 140,489
Interest and dividends on securities	8,933	9,807	27,279	29,016
Interest on interest bearing deposits and other investments	800	634	2,591	1,835
Total Interest Income	72,825	59,154	217,537	171,340
Interest on deposits	4,334	2,097	13,032	5,623
Interest on time certificates	6,009	2,975	16,692	7,783
Interest on borrowed money	1,534	2,520	5,955	6,403
Total Interest Expense	11,877	7,592	35,679	19,809
Net Interest Income	60,948	51,562	181,858	151,531
Provision for loan losses	2,251	5,774	6,199	9,388
Net Interest Income after Provision for Loan Losses	58,697	45,788	175,659	142,143
Noninterest income
Other income	14,790	12,339	41,678	37,506
Securities losses, net	(847)	(48)	(1,322)	(198)
Total Noninterest Income (Note I)	13,943	12,291	40,356	37,308
Total Noninterest Expenses (Note I)	38,583	37,399	122,682	112,809
Income Before Income Taxes	34,057	20,680	93,333	66,642
Provision for income taxes	8,452	4,358	21,770	15,329
Net Income	$ 25,605	$ 16,322	$ 71,563	$ 51,313
Share Data
Net income per share of common stock - diluted (in dollars per share)	$ 0.49	$ 0.34	$ 1.38	$ 1.07
Net income per share of common stock - basic (in dollars per share)	$ 0.50	$ 0.35	$ 1.39	$ 1.09
Average common shares outstanding - diluted (in shares)	51,935	48,029	51,996	47,903
Average common shares outstanding - basic (in shares)	51,473	47,205	51,426	47,108