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Investment in Mesquite (Tables)
 6 Months Ended
Aug. 31, 2015
Mesquite  
Schedule of Equity Method Investments [Line Items]  
Equity method investment financial information
The following table presents unaudited condensed financial information of Mesquite for the three and six months ended June 30, 2015 and 2014 (in thousands):
 
Three Months Ended
 
Six Months Ended
 
June 30,
 
June 30,
 
2015
 
2014
 
2015
 
2014
Net operating revenues
$
25,195

 
$
24,332

 
$
53,489

 
$
50,808

Operating income
$
2,612

 
$
1,842

 
$
8,001

 
$
5,008

Net income
$
1,595

 
$
731

 
$
5,987

 
$
2,932