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Trading Securities Owned And Trading Securities Sold, But Not Yet Purchased (Tables)
3 Months Ended
Mar. 31, 2012
Trading Securities Owned And Trading Securities Sold, But Not Yet Purchased [Abstract]  
Components Of Trading Securities Owned And Trading Securities Sold, But Not Yet Purchased

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

March 31,
2012

 

December 31, 2011

 

Trading securities owned:

 

 

 

 

 

 

 

U.S. government agency securities

 

$

91,271

 

$

66,424

 

U.S. government securities

 

 

15,030

 

 

32,845

 

Corporate securities:

 

 

 

 

 

 

 

Fixed income securities

 

 

240,244

 

 

244,535

 

Equity securities

 

 

31,810

 

 

19,859

 

State and municipal securities

 

 

197,369

 

 

111,288

 

 

 

$

575,724

 

$

474,951

 

Trading securities sold, but not yet purchased:

 

 

 

 

 

 

 

U.S. government securities

 

$

98,283

 

$

109,776

 

U.S. government agency securities

 

 

6,161

 

 

954

 

Corporate securities:

 

 

 

 

 

 

 

Fixed income securities

 

 

145,002

 

 

149,460

 

Equity securities

 

 

17,972

 

 

6,060

 

State and municipal securities

 

 

389

 

 

583

 

 

 

$

267,807

 

$

266,833