Summary Financial Information for National CineMedia (Detail) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 24, 2020	Sep. 30, 2021	Sep. 30, 2020	Sep. 24, 2020	Dec. 31, 2020
Schedule Of Equity Method Investments [Line Items]
Operating income (loss)	$ (42,506)	$ (210,784)		$ (297,401)	$ (467,978)
Net loss attributable to Cinemark Holdings, Inc.	(77,814)	$ (147,592)		(428,522)	$ (377,572)
Deferred charges and other assets, net	27,042			27,042			$ 33,199
Current liabilities	642,777			642,777			606,441
Noncurrent liabilities	4,120,840			4,120,840			4,157,512
NCM
Schedule Of Equity Method Investments [Line Items]
Gross revenues	31,677		$ 6,000	51,080		$ 74,700
Operating income (loss)	(18,669)		(20,073)	(76,607)		(38,973)
Net loss attributable to Cinemark Holdings, Inc.	(35,335)		$ (34,950)	(125,699)		$ (81,350)
Current assets	97,064			97,064			142,566
Deferred charges and other assets, net	665,570			665,570			685,643
Current liabilities	48,761			48,761			46,872
Noncurrent liabilities	1,114,599			1,114,599			1,072,207
Members deficit	$ (400,726)			$ (400,726)			$ (290,870)