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Trading Securities Owned And Trading Securities Sold, But Not Yet Purchased (Tables)
6 Months Ended
Jun. 30, 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

 

 

 

 

 

 

 

June 30,

 

December 31,

 

2012

 

2011

Trading securities owned:

 

 

 

 

 

U.S. government agency securities

$

 80,673

 

$

 66,424

U.S. government securities

 

 31,879

 

 

 32,845

Corporate securities:

 

 

 

 

 

Fixed income securities

 

 432,086

 

 

 244,535

Equity securities

 

 43,997

 

 

 19,859

State and municipal securities

 

 162,312

 

 

 111,288

 

$

 750,947

 

$

 474,951

Trading securities sold, but not yet purchased

 

 

 

 

 

U.S. government securities

$

 208,786

 

$

 109,776

U.S. government agency securities

 

 6,658

 

 

 954

Corporate securities:

 

 

 

 

 

Fixed income securities

 

 177,976

 

 

 149,460

Equity securities

 

 18,090

 

 

 6,060

State and municipal securities

 

 170

 

 

 583

 

$

 411,680

 

$

 266,833