UNAUDITED CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
ASSETS
Fair value of investment securities held to maturity	$ 7,787	$ 6,315
Stockholders' Equity
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	9,000,000	9,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	125,000,000	125,000,000
Common stock, shares issued (in shares)	53,145,798	52,871,443
Common stock, shares outstanding (in shares)	37,189,352	36,855,019
Treasury stock (in shares)	15,956,446	16,016,424