Condensed Consolidated Statements of Operations and Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Interest and Dividend Income
Loans receivable, including loan fees	$ 109,943	$ 100,151	$ 315,038	$ 290,337
Investment securities	6,142	5,105	15,262	19,389
Federal Home Loan Bank stock	524	508	2,782	1,379
Deposits with banks	258	571	1,105	1,499
Total interest and dividend income	116,867	106,335	334,187	312,604
Interest Expense
Time deposits	10,407	9,117	28,321	26,155
Other deposits	3,217	2,995	9,010	7,826
Securities sold under agreements to repurchase	3,977	5,858	11,836	19,731
Advances from Federal Home Loan Bank	164	153	374	849
Long-term debt	1,456	1,456	4,320	3,012
Short-term borrowings		1		1
Total interest expense	19,221	19,580	53,861	57,574
Net interest income before reversal for credit losses	97,646	86,755	280,326	255,030
Reversal for loan losses	(1,250)	(5,100)	(8,400)	(8,800)
Net interest income after reversal for credit losses	98,896	91,855	288,726	263,830
Non-Interest Income
Securities (losses)/gains, net	(16)	361	(3,369)	6,827
Letters of credit commissions	1,455	1,559	4,114	4,547
Depository service fees	1,409	1,330	4,003	3,999
Other operating income	6,308	5,724	18,576	17,181
Total non-interest income	9,156	8,974	23,324	32,554
Non-Interest Expense
Salaries and employee benefits	20,725	22,630	67,804	69,472
Occupancy expense	4,412	3,934	12,419	11,692
Computer and equipment expense	3,893	2,471	8,783	7,307
Professional services expense	5,687	5,991	17,230	16,410
FDIC and State assessments	2,403	2,261	6,907	6,692
Marketing expense	1,436	639	3,577	2,722
Other real estate owned expense/(income)	250	(1,011)	(1,053)	(629)
Amortization of investments in low income housing and alternative energy partnerships	15,427	1,672	23,277	5,126
Amortization of core deposit intangibles	169	214	493	510
Costs associated with debt redemption		527		3,348
Other operating expense	3,069	3,279	9,750	10,538
Total non-interest expense	57,471	42,607	149,187	133,188
Income before income tax expense	50,581	58,222	162,863	163,196
Income tax expense	12,098	22,313	43,200	60,944
Net income	38,483	35,909	119,663	102,252
Other comprehensive income, net of tax
Unrealized holding gain on securities available-for-sale	2,733	170	2,837	25,014
Less: reclassification adjustments included in net income	(10)	209	(1,953)	3,957
Unrealized holding (loss)/gain on cash flow hedge derivatives	(2,558)	100	(1,818)	(163)
Total other comprehensive gain, net of tax	185	61	2,972	20,894
Total comprehensive income	$ 38,668	$ 35,970	$ 122,635	$ 123,146
Net income per common share:
Basic (in Dollars per share)	$ 0.47	$ 0.45	$ 1.49	$ 1.28
Diluted (in Dollars per share)	0.47	0.45	1.48	1.28
Cash dividends paid per common share (in Dollars per share)	$ 0.14	$ 0.07	$ 0.38	$ 0.19
Average common shares outstanding
Basic (in Shares)	81,475,288	79,677,952	80,422,711	79,639,202
Diluted (in Shares)	82,285,478	80,176,100	81,105,190	80,087,819