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Investment in Mesquite (Tables) (Mesquite)
 3 Months Ended
May 31, 2013
Mesquite
  
Schedule of Equity Method Investments [Line Items]  
Equity method investment fnancial information
The following tables present unaudited condensed financial information of Mesquite for the three months ended March 31, 2013 and 2012 (in thousands):
 
 
Three Months Ended
 
March 31,
 
2013
 
2012
Net operating revenues
$
26,998

 
$
28,463

Operating income
$
4,296

 
$
3,116

Net income
$
2,831

 
$
1,632