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Investments (Detail) - USD ($)
1 Months Ended 3 Months Ended 6 Months Ended
Apr. 30, 2016
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Dec. 31, 2015
Schedule of Cost-method Investments [Line Items]            
Investment in Topgolf, during the period       $ 1,260,000    
Investment in Topgolf   $ 49,108,000   $ 49,108,000   $ 53,315,000
Notes Receivable from Topgolf           $ 3,200,000
Annual Interest Rate on notes receivable           10.00%
Percentage of ownership interest in Topgolf   15.00%   15.00%    
Percentage of Topgolf preferred shares sold 10.00%          
Reduction in total investment in Topgolf $ 5,767,000          
Proceeds from sale of investments in golf-related ventures 23,429,000     $ 23,429,000 $ 0  
Gain on sale of preferred shares in Topgolf 17,662,000 $ 17,662,000 $ 0 17,662,000 $ 0  
Fair Value | Minimum            
Schedule of Cost-method Investments [Line Items]            
Investment in Topgolf 207,000,000          
Fair Value | Maximum            
Schedule of Cost-method Investments [Line Items]            
Investment in Topgolf $ 217,000,000          
Topgolf International Inc            
Schedule of Cost-method Investments [Line Items]            
Investment in Topgolf   $ 48,808,000   $ 48,808,000