Condensed Consolidated Statements of Operations and Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Interest and Dividend Income
Loans receivable, including loan fees	$ 124,910	$ 114,890
Investment securities	4,406	6,859
Federal Home Loan Bank stock	412	347
Deposits with banks	1,076	249
Total interest and dividend income	130,804	122,345
Interest Expense
Time deposits	10,982	10,857
Other deposits	4,446	3,640
Securities sold under agreements to repurchase	1,550	3,934
Advances from Federal Home Loan Bank	288	106
Long-term debt	1,424	1,440
Total interest expense	18,690	19,977
Net interest income before reversal for credit losses	112,114	102,368
Reversal for loan losses	(2,500)	(10,500)
Net interest income after reversal for credit losses	114,614	112,868
Non-Interest Income
Securities losses, net	(466)	(206)
Letters of credit commissions	1,123	1,281
Depository service fees	1,508	1,323
Other operating income	4,553	5,143
Total non-interest income	6,718	7,541
Non-Interest Expense
Salaries and employee benefits	25,871	26,931
Occupancy expense	4,699	4,369
Computer and equipment expense	2,724	2,580
Professional services expense	4,256	4,368
Data processing service expense	2,532	2,250
FDIC and State assessments	2,520	2,589
Marketing expense	871	796
Other real estate owned expense	61	295
Amortization of investments in low income housing and alternative energy partnerships	4,850	2,794
Amortization of core deposit intangibles	172	172
Other operating expense	3,330	4,427
Total non-interest expense	51,886	51,571
Income before income tax expense	69,446	68,838
Income tax expense	20,505	22,675
Net income	48,941	46,163
Other comprehensive income, net of tax
Unrealized holding (loss)/gain on securities available-for-sale	(496)	10,354
Less: reclassification adjustments for losses included in net income	(270)	(119)
Unrealized holding gain/(loss) on cash flow hedge derivatives	299	(3,120)
Total other comprehensive gain, net of tax	73	7,353
Total other comprehensive income	$ 49,014	$ 53,516
Net income per common share:
Basic (in dollars per share)	$ 0.61	$ 0.58
Diluted (in dollars per share)	0.61	0.57
Cash dividends paid per common share (in dollars per share)	$ 0.21	$ 0.18
Average common shares outstanding
Basic (in shares)	79,703,593	79,734,519
Diluted (in shares)	80,413,178	80,393,849