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Related-Party Transactions - Additional Information (Detail)
3 Months Ended 6 Months Ended 12 Months Ended
May 27, 2019
USD ($)
Director
$ / shares
shares
May 08, 2017
shares
Jun. 30, 2019
USD ($)
shares
Jun. 30, 2018
shares
Jun. 30, 2019
Jun. 30, 2018
shares
Dec. 31, 2018
USD ($)
Mar. 24, 2017
Related Party Transaction [Line Items]                
Stock repurchased agreement closing date         May 30, 2019      
Share Repurchase Program [Member]                
Related Party Transaction [Line Items]                
Stock Repurchase Program, number of shares repurchased | shares 5,615,874   5,615,874 0   0    
Stock repurchases under Share Repurchase Program | $ $ 150,000,000.0           $ 158,000,000.0  
Price per share | $ / shares $ 26.71              
Zhonghong Zhuoye Group [Member]                
Related Party Transaction [Line Items]                
Percentage of common stock outstanding by partnership               21.00%
Sun Wise [Member]                
Related Party Transaction [Line Items]                
Beneficial ownership of common stock, shares | shares   19,452,063            
Hill Path Capital LP [Member]                
Related Party Transaction [Line Items]                
Percentage of common stock outstanding by partnership 34.60%              
Price per share | $ / shares $ 26.71              
Stock Repurchase Program, number of shares repurchased | shares 13,214,000              
Stock purchase agreement closing date         May 30, 2019      
Reimbursable expenses incurred | $ $ 250,000              
Percentage shares held 24.90%              
Hill Path Capital LP [Member] | Maximum [Member]                
Related Party Transaction [Line Items]                
Number of directors appointed | Director 3              
Reimbursable expenses incurred | $     $ 250,000