FHLBNY ADVANCES (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
FHLBNY advances	$ 910,000	$ 842,500
Average interest cost (in hundredths)	2.89%	2.96%	3.17%
Federal Home Loan Bank, Advances, Fiscal Year Maturity [Abstract]
2014	299,500
2015	284,500
2016	151,000
2017	132,500
2018	42,500
Total	910,000
Interest rate on outstanding advances (in hundredths)	2.35%	2.68%
FHLBNY Borrowing Capacity	$ 1,203,939	$ 1,362,495
Federal Home Loan Bank, Advances, Maturities Summary, Average Interest Rate of Amounts Due [Abstract]
2014	2.08%
2015	2.55%
2016	2.03%
2017	3.07%
2018	1.80%
TOTAL	2.35%