CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Parenthetical) (USD $) In Thousands, except Share data	Jun. 30, 2011	Dec. 31, 2010
CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION
Investment securities available-for-sale, amortized cost (in dollars)	$ 878,401	$ 952,101
Preferred stock, Authorized shares	10,000,000	10,000,000
Preferred stock, issued	0	0
Preferred stock, outstanding	0	0
Common stock, Authorized shares	40,000,000	40,000,000
Common stock, issued	25,643,506	25,643,506
Common stock in treasury, shares	1,431,804	1,470,696