Summary of Impact of Translating Financial Statements of Company's International Subsidiaries (Detail) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)	Dec. 31, 2020
Foreign Currency Translation [Line Items]
Other comprehensive Loss	$ 8,259	$ (3,702)	$ (1,206)	$ (61,327)
Brazil
Foreign Currency Translation [Line Items]
Exchange Rate	4.97		4.97		5.20
Other comprehensive Loss			$ 2,766	(49,478)
Chile
Foreign Currency Translation [Line Items]
Exchange Rate	729.44		729.44		714.14
Other comprehensive Loss			$ (1,401)	(8,233)
Colombia
Foreign Currency Translation [Line Items]
Exchange Rate	3,756.67		3,756.67		3,432.50
Other comprehensive Loss			$ (134)	(2,523)
Peru
Foreign Currency Translation [Line Items]
Exchange Rate	3.90		3.90		3.65
Other comprehensive Loss			$ (1,959)	(2,480)
Other foreign countries
Foreign Currency Translation [Line Items]
Other comprehensive Loss			(478)	1,387
International Subsidiaries | Cinemark Holdings, Inc. Stockholders' Equity
Foreign Currency Translation [Line Items]
Other comprehensive Loss			$ (1,206)	$ (61,327)