Consolidated Statements of Financial Condition (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Statement Of Financial Position [Abstract]
Allowance for loan losses	$ 21,032	$ 21,130
Preferred stock, par value
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued
Preferred stock, shares outstanding
Common stock, par value
Common stock, shares authorized	499,000,000	499,000,000
Common stock, shares issued	54,138,910	37,804,457
Common stock, shares outstanding	50,225,367	33,027,886
Treasury stock, shares	3,913,543	4,776,571