Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015		Mar. 31, 2014
Interest Income
Loans	$ 70,822		$ 65,541
Taxable securities	7,526		6,752
Tax-exempt securities	3,042		2,618
Deposits in banks	27		14
Total interest income	81,417		74,925
Interest Expense
Deposits	748		752
Federal Home Loan Bank advances	159		114
Other borrowings	146		119
Total interest expense	1,053		985
Net Interest Income	80,364		73,940
Provision for loan and lease losses	1,209	[1]	1,922	[1]
Net interest income after provision for loan and lease losses	79,155		72,018
Noninterest Income (Loss)
Service charges and other fees	14,869		12,936
Merchant services fees	2,040		1,870
Gain (Loss) on Sale of Securities, Net	721		223
Bank owned life insurance	1,078		965
Change in FDIC loss sharing asset	150		(4,819)
Other	3,909		2,833
Total noninterest income (loss)	22,767		14,008
Noninterest Expense
Compensation and employee benefits	39,100		31,338
Occupancy	7,993		8,244
Merchant processing	977		980
Advertising and promotion	931		769
Data processing and communications	4,984		3,520
Legal and professional fees	2,507		2,169
Taxes, licenses and fees	1,232		1,180
Regulatory premiums	1,221		1,176
Net cost (benefit) of operation of other real estate owned	(1,246)		146
Amortization of intangibles	1,817		1,580
Other	7,218		6,284
Total noninterest expense	66,734		57,386
Income before income taxes	35,188		28,640
Income tax provision	10,827		8,796
Net Income	$ 24,361		$ 19,844
Earnings per common share
Basic ($ per share)	$ 0.42		$ 0.38
Diluted ($ per share)	$ 0.42		$ 0.37
Dividends paid per common share	$ 0.30		$ 0.12
Weighted average number of common shares outstanding	56,965		51,097
Weighted average number of diluted common shares outstanding	56,978		52,433

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