Annual report pursuant to Section 13 and 15(d)

Condensed Parent Company Balance Sheets (Parenthetical) (Detail)

v3.20.4
Condensed Parent Company Balance Sheets (Parenthetical) (Detail) - $ / shares
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Condensed Financial Statements, Captions [Line Items]        
Common stock, par value $ 0.001 $ 0.001    
Common stock, shares authorized 300,000,000 300,000,000    
Common stock, shares issued 123,627,080 121,863,515    
Common stock, shares outstanding 118,576,099 117,151,656    
Treasury stock, shares 5,050,981 4,711,859 4,626,191 4,525,870
Cinemark Holdings, Inc.        
Condensed Financial Statements, Captions [Line Items]        
Common stock, par value $ 0.001 $ 0.001    
Common stock, shares authorized 300,000,000 300,000,000    
Common stock, shares issued 123,627,080 121,863,515    
Common stock, shares outstanding 118,576,099 117,151,656    
Treasury stock, shares 5,050,981 4,711,859