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Equity Investment - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Feb. 15, 2018
Jul. 31, 2019
Jul. 31, 2018
Schedule of Equity Method Investments [Line Items]      
Payments to Acquire Interest in Joint Venture   $ 6,500 $ 50,402
TH2      
Schedule of Equity Method Investments [Line Items]      
Losses from investment   8,798 1,939
Payments to Acquire Interest in Joint Venture $ 46,902 6,500 $ 3,500
Loan to joint venture   $ 2,157  
Ownership percent 50.00%    
TH2 | Tourism Holdings Limited ('thl')      
Schedule of Equity Method Investments [Line Items]      
Ownership percent 50.00%