CONSOLIDATED STATEMENTS OF INCOME (LOSS) (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Interest and dividend income:
Loans	$ 147,625	$ 133,175
Investment securities	16,018	13,987
Money market investments and interest-bearing cash accounts	2,829	2,256
Total interest income	166,472	149,418
Interest expense:
Deposits	17,492	16,971
Securities sold under agreements to repurchase	2,548	2,297
Advances from FHLB	3,785	3,372
Other borrowings	2,466	2,085
Total interest expense	26,291	24,725
Net interest income	140,181	124,693
Provision for loan and lease losses	11,820	20,544
Net interest income after provision for loan and lease losses	128,361	104,149
Non-interest income:
Mortgage banking activities	3,627	4,165
Gain on early extinguishment of debt	0	2,316
Insurance commission income	4,250	3,355
Other non-interest income	8,950	7,860
Total non-interest income	22,543	22,784
Non-interest expenses:
Employees' compensation and benefits	39,296	40,684
Occupancy and equipment	16,055	15,105
Business promotion	3,706	2,576
Professional fees	10,310	10,060
Taxes, other than income taxes	3,820	3,856
FDIC deposit insurance	1,698	2,649
Net loss on OREO and OREO operations	3,743	190
Credit and debit card processing expenses	4,154	3,537
Communications	1,752	1,482
Other non-interest expenses	5,438	5,888
Total non-interest expenses	89,972	86,027
Income before income taxes	60,932	40,906
Income tax expense	17,618	7,758
Net income	43,314	33,148
Net income attributable to common stockholders	$ 42,645	$ 32,479
Net income per common share:
Basic	$ 0.2	$ 0.15
Diluted	$ 0.2	$ 0.15
Deposit Account [Member]
Non-interest income:
Service charges and fees on deposit accounts	$ 5,716	$ 5,088
Total non-interest income	$ 5,716	$ 5,088