Consolidated Statements of Financial Condition (Parenthetical) (USD $) In Thousands, except Share data	Jun. 30, 2011	Dec. 31, 2010
Consolidated Statements of Financial Condition
Held to maturity, fair value	$ 2,002,359	$ 1,898,872
Junior subordinated debentures issued to capital trusts, fair value	$ 159,787	$ 161,734
Preferred stock, par value	$ 0	$ 0
Preferred stock, shares authorized	30,000,000	30,000,000
Preferred stock, shares issued	0	0
Common stock, par value	$ 0	$ 0
Common stock, shares authorized	220,974,508	220,974,508
Common stock, shares issued	170,146,143	170,131,085
Treasury stock, shares	294,771	597,459