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Subsequent Event (Table)
 6 Months Ended
Jun. 30, 2011
Subsequent Event [Abstract]  
Future Equity Contributions
The following table reflects remaining future equity contributions.


(THOUSANDS)
 
CONTRIBUTION
 
Six months ending December 31, 2011
 $25,442 
Years ending December 31,
    
2012
  76,629 
2013
  36,225 
2014
  22,927 
2015
  21,904 
Thereafter
  20,808 
Total
 $203,935