Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Interest Income
Loans	$ 67,004	$ 74,837	$ 132,545	$ 122,865
Taxable securities	6,382	4,890	13,134	9,124
Tax-exempt securities	2,671	2,508	5,289	4,806
Federal funds sold and deposits in banks	30	33	44	234
Total interest income	76,087	82,268	151,012	137,029
Interest Expense
Deposits	729	1,054	1,481	2,143
Federal Home Loan Bank advances	115	(699)	229	(628)
Prepayment charge on Federal Home Loan Bank advances	0	1,548	0	1,548
Other borrowings	119	376	238	495
Total interest expense	963	2,279	1,948	3,558
Net Interest Income	75,124	79,989	149,064	133,471
Provision for loan and lease losses			4,039	268
Net interest income after provision for loan and lease losses	73,007	79,701	145,025	133,203
Noninterest Income (Loss)
Service charges and other fees	13,790	13,560	26,726	21,154
Merchant services fees	2,040	2,013	3,910	3,864
Investment securities gains, net	296	92	519	462
Bank owned life insurance	976	1,008	1,941	1,706
Change in FDIC loss sharing asset	(5,050)	(13,137)	(9,869)	(23,620)
Other	2,575	3,272	5,408	4,900
Total noninterest income (loss)	14,627	6,808	28,635	8,466
Noninterest Expense
Compensation and employee benefits	31,064	35,657	62,402	57,310
Occupancy	8,587	7,543	16,831	12,296
Merchant processing	998	852	1,978	1,709
Advertising and promotion	950	1,160	1,719	2,030
Data processing and communications	3,680	3,638	7,200	6,218
Legal and professional fees	2,303	5,504	4,472	7,554
Taxes, licenses and fees	1,051	1,204	2,231	2,591
Regulatory premiums	1,073	1,177	2,249	2,034
Net cost (benefit) of operation of other real estate owned	(97)	(2,828)	49	(5,329)
Amortization of intangibles	1,480	1,693	3,060	2,722
Other	6,675	8,904	12,959	13,418
Total noninterest expense	57,764	64,504	115,150	102,553
Income before income taxes	29,870	22,005	58,510	39,116
Income tax provision	8,643	7,414	17,439	12,349
Net Income	21,227	14,591	41,071	26,767
Earnings per common share
Basic ($ per share)	$ 0.40	$ 0.28	$ 0.79	$ 0.59
Diluted ($ per share)	$ 0.40	$ 0.28	$ 0.77	$ 0.58
Dividends paid per common share	$ 0.24	$ 0.10	$ 0.36	$ 0.20
Weighted average number of common shares outstanding	52,088	50,788	51,600	45,099
Weighted average number of diluted common shares outstanding	52,494	52,125	52,463	45,758
Noncovered Loans [Member]
Interest Expense
Provision for loan and lease losses	600	2,000	100	1,000
Covered Loans [Member]
Interest Expense
Provision for loan and lease losses	$ 1,517	$ (1,712)	$ 3,939	$ (732)