CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION
Marketable securities available-for-sale, amortized cost (in dollars)	$ 1,022,078	$ 1,053,122
Marketable securities held-to-maturity, fair value (in dollars)	124,061	161,969
Allowance for loan losses (in dollars)	$ 71,348	$ 73,219
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	50,000,000	50,000,000
Preferred stock, shares issued	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares issued	94,243,713	93,652,960