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Investment in Mesquite (Tables) (Mesquite)
 6 Months Ended
Aug. 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 and six months ended June 30, 2013 and 2012 (in thousands):
 
 
Three Months Ended
 
Six Months Ended
 
June 30,
 
June 30,
 
2013
 
2012
 
2013
 
2012
Net operating revenues
$
24,546

 
$
26,034

 
$
51,544

 
$
54,497

Operating income
$
2,403

 
$
153

 
$
6,699

 
$
3,269

Net income (loss)
$
4,318

 
$
(1,369
)
 
$
7,149

 
$
263