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Investment in Mesquite (Tables) (Mesquite)
 6 Months Ended
Aug. 31, 2014
Mesquite
  
Schedule of Equity Method Investments [Line Items]  
Equity method investment financial information
The following tables present unaudited condensed financial information of Mesquite for the three and six months ended June 30, 2014 and 2013 (in thousands):
 
Three Months Ended
 
Six Months Ended
 
June 30,
 
June 30,
 
2014
 
2013
 
2014
 
2013
Net operating revenues
$
24,332

 
$
24,546

 
$
50,808

 
$
51,544

Operating income
$
1,842

 
$
2,403

 
$
5,008

 
$
6,699

Net income
$
731

 
$
4,318

 
$
2,932

 
$
7,149