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Equity and Other Investments - Additional Information (Detail) (USD $)
3 Months Ended 9 Months Ended 1 Months Ended 3 Months Ended 1 Months Ended
Feb. 28, 2013
Feb. 29, 2012
Nov. 30, 2012
Aug. 31, 2012
380 Development
acre
Dec. 31, 2012
Kansas Entertainment
Feb. 28, 2013
Kansas Entertainment
Feb. 29, 2012
Kansas Entertainment
Feb. 28, 2013
Motorsports Authentics
Mar. 31, 2013
Subsequent Event
Kansas Entertainment
Schedule of Equity Method Investments [Line Items]                  
Equity Method Investment, Ownership Percentage           50.00% 50.00% 50.00%  
Equity in net loss from equity investments $ 1,020,000 $ (301,000)       $ 1,000,000 $ (300,000)    
Proceeds from Equity Method Investment, Dividends or Distributions         4,500,000       5,000,000
Number of acres purchased in the New York City borough of Staten Island       676          
Equity investments $ 142,899,000   $ 146,378,000         $ 0