Summary of Impact of Translating Financial Statements of Company's International Subsidiaries (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2021 USD ($)	Mar. 31, 2020 USD ($)	Dec. 31, 2020
Foreign Currency Translation [Line Items]
Other comprehensive Loss	$ (9,465)	$ (57,625)
Brazil
Foreign Currency Translation [Line Items]
Exchange Rate	5.72		5.20
Other comprehensive Loss	$ (6,912)	(42,873)
Chile
Foreign Currency Translation [Line Items]
Exchange Rate	725.34		714.14
Other comprehensive Loss	$ (1,025)	(11,126)
Colombia
Foreign Currency Translation [Line Items]
Exchange Rate	3,736.91		3,432.50
Other comprehensive Loss	$ (119)	(3,274)
Peru
Foreign Currency Translation [Line Items]
Exchange Rate	3.79		3.65
Other comprehensive Loss	$ (1,172)	(1,450)
Other foreign countries
Foreign Currency Translation [Line Items]
Other comprehensive Loss	(237)	1,098
International Subsidiaries | Cinemark Holdings, Inc. Stockholders' Equity
Foreign Currency Translation [Line Items]
Other comprehensive Loss	$ (9,465)	$ (57,625)