Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
INTEREST INCOME
Loans, including fees	$ 68,730	$ 62,919
Securities:
Taxable	4,335	1,898
Tax-exempt	126	171
Federal funds sold	2	104
Interest-bearing deposits with banks	7,748	5,782
Total interest income	80,941	70,874
INTEREST EXPENSE
Deposits	13,537	7,269
Short-term borrowings	10	35
Junior subordinated debentures	491	535
Total interest expense	14,038	7,839
Net interest income	66,903	63,035
Provision for loan losses	1,684	314
Net interest income after provision for loan losses	65,219	62,721
NONINTEREST INCOME
Securities transactions (includes no accumulated other comprehensive income reclassifications)		(14)
Income from sales of loans	698	651
Insurance commissions	5,265	5,199
Cash management	3,776	3,021
(Loss)/gain on sale of other assets	(4)	26
Other	1,426	1,445
Total noninterest income	32,001	30,110
NONINTEREST EXPENSE
Salaries and employee benefits	36,171	34,190
Occupancy, net	2,627	3,402
Depreciation	2,985	2,410
Amortization of intangible assets	759	733
Data processing services	1,480	1,203
Net (income)/expense from other real estate owned	(484)	26
Marketing and business promotion	2,261	2,352
Deposit insurance	533	619
Other	9,874	10,955
Total noninterest expense	56,206	55,890
Income before taxes	41,014	36,941
Income tax expense	9,177	7,321
Net income	$ 31,837	$ 29,620
NET INCOME PER COMMON SHARE
Basic	$ 0.98	$ 0.91
Diluted	$ 0.96	$ 0.89
OTHER COMPREHENSIVE GAIN/(LOSS)
Unrealized gains/(losses) on securities, net of tax of $(868) and $474, respectively	$ 2,540	$ (1,388)
Other comprehensive gains/(losses), net of tax of $(868) and $474, respectively	2,540	(1,388)
Comprehensive income	34,377	28,232
Trust Revenue [Member]
NONINTEREST INCOME
Revenue	3,177	3,129
Service Charges on Deposits [Member]
NONINTEREST INCOME
Revenue	$ 17,663	$ 16,653