CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Interest income:
Interest and fees on loans	$ 56,762	$ 43,002	$ 138,595	$ 104,333
Interest and dividends on investment securities:
Taxable interest income	4,689	3,398	12,339	10,585
Non-taxable interest income	1,068	788	2,521	2,332
Total interest income	62,519	47,188	153,455	117,250
Interest expense:
Deposits	3,851	2,099	8,058	4,998
Federal funds purchased and securities sold under agreements to Repurchase	291	102	618	274
Short-term borrowings	447	263	521	461
Long-term debt	141	55	421	155
Senior notes	400		562
Subordinated notes	799		1,098
Junior subordinated debt owed to unconsolidated trusts	649	538	1,857	1,337
Total interest expense	6,578	3,057	13,135	7,225
Net interest income	55,941	44,131	140,320	110,025
Provision for loan losses	1,494	1,950	2,494	4,050
Net interest income after provision for loan losses	54,447	42,181	137,826	105,975
Non-interest income:
Trust fees	5,071	4,520	17,088	15,112
Commissions and brokers' fees, net	766	740	2,239	2,095
Remittance processing	2,877	2,803	8,581	8,558
Fees for customer services	6,577	6,495	18,658	17,074
Mortgage revenue	3,526	4,842	8,430	9,091
Security gains, net	290	11	1,143	1,230
Other	1,730	1,334	4,774	3,008
Total non-interest income	20,837	20,745	60,913	56,168
Non-interest expense:
Salaries, wages and employee benefits	25,497	21,716	67,448	55,575
Net occupancy expense of premises	3,714	3,401	10,025	8,300
Furniture and equipment expenses	1,785	1,836	5,123	4,564
Data processing	5,753	4,430	13,290	12,677
Amortization of intangible assets	1,286	1,282	3,675	3,157
Regulatory expense	778	802	1,803	2,274
Other	8,126	5,948	19,962	16,904
Total non-interest expense	46,939	39,415	121,326	103,451
Income before income taxes	28,345	23,511	77,413	58,692
Income taxes	9,561	8,089	26,980	20,453
Net income	$ 18,784	$ 15,422	$ 50,433	$ 38,239
Basic earnings per common share (in dollars per share)	$ 0.41	$ 0.40	$ 1.24	$ 1.12
Diluted earnings per common share (in dollars per share)	0.41	0.40	1.23	1.11
Dividends declared per share of common stock (in dollars per share)	$ 0.18	$ 0.17	$ 0.54	$ 0.51