Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Interest Income
Loans	$ 105,412	$ 75,579	$ 208,439	$ 149,699
Taxable securities	11,923	9,468	24,631	20,454
Tax-exempt securities	3,063	2,716	6,127	5,407
Deposits in banks	151	23	496	42
Total interest income	120,549	87,786	239,693	175,602
Interest Expense
Deposits	2,572	908	5,081	1,695
Federal Home Loan Bank advances	815	591	1,385	816
Interest Expense, Subordinated Notes and Debentures	468	0	936	0
Other borrowings	20	126	136	255
Total interest expense	3,875	1,625	7,538	2,766
Net Interest Income	116,674	86,161	232,155	172,836
Provision for loan and lease losses	3,975	3,177	9,827	5,952
Net interest income after provision for loan and lease losses	112,699	82,984	222,328	166,884
Noninterest Income
Deposit account and treasury management fees	8,683	7,396	17,423	14,683
Card revenue	6,616	6,202	12,429	11,925
Financial services and trust revenue	3,219	3,036	5,949	5,875
Loan revenue	3,054	2,989	6,240	6,582
Merchant processing revenue	0	2,264	0	4,283
Bank owned life insurance	1,712	1,433	3,138	2,713
Gain (Loss) on Investments	(33)	0	(11)	0
Change in FDIC loss-sharing asset	0	(173)	0	(447)
Other	441	988	1,667	3,380
Total noninterest income	23,692	24,135	46,835	48,994
Noninterest Expense
Compensation and employee benefits	48,949	38,393	99,519	79,218
Occupancy	9,276	7,577	19,397	14,768
Merchant processing expense	0	1,147	0	2,196
Advertising and promotion	1,622	1,137	3,051	1,954
Data processing	5,221	4,741	10,491	8,949
Legal and professional fees	4,171	2,947	7,408	6,316
Taxes, licenses and fees	1,560	748	2,985	1,989
Regulatory premiums	937	741	1,874	1,517
Net cost (benefit) of operation of other real estate owned	758	(1)	759	151
Amortization of intangibles	3,088	1,249	6,276	2,598
Other	9,061	10,188	18,870	18,197
Total noninterest expense	84,643	68,867	170,630	137,853
Income before income taxes	51,748	38,252	98,533	78,025
Income tax provision	9,999	11,120	16,814	21,694
Net Income	$ 41,749	$ 27,132	$ 81,719	$ 56,331
Earnings per common share
Basic ($ per share)	$ 0.57	$ 0.47	$ 1.12	$ 0.97
Diluted ($ per share)	0.57	0.47	1.12	0.97
Dividends declared per common share	$ 0.26	$ 0.22	$ 0.48	$ 0.44
Weighted average number of common shares outstanding	72,385	57,520	72,343	57,437
Weighted average number of diluted common shares outstanding	72,390	57,525	72,347	57,442