Noncontrolling Interests In Subsidiaries (Tables)
 9 Months Ended
Sep. 30, 2012
Noncontrolling Interests In Subsidiaries [Abstract]  
Changes Of Noncontrolling Interests In Subsidiaries

 

 

 

Common

 

Units

Balance at January 1, 2012
12,197,122 

Redemption of common units for shares of common stock
(20,000)

 

 

Balance at September 30, 2012
12,177,122