Computations of Basic and Diluted Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended												12 Months Ended
		Dec. 31, 2019	[1]	Sep. 30, 2019	[1]	Jun. 30, 2019	[1]	Mar. 31, 2019	[1]	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019		Dec. 31, 2018	Dec. 31, 2017
Earnings Per Share Disclosure [Line Items]
Net income attributable to Cinemark Holdings, Inc.		$ 26,334		$ 31,353		$ 100,971		$ 32,728		$ 19,443	$ 50,228	$ 82,135	$ 62,021	$ 191,386	[1]	$ 213,827	$ 264,180
Earnings allocated to participating share-based awards	[2]													(1,174)		(1,168)	(1,350)
Net income attributable to common stockholders														$ 190,212		$ 212,659	$ 262,830
Basic weighted average shares outstanding														116,306		116,054	115,766
Diluted weighted average shares outstanding														116,606		116,342	116,059
Basic earnings per share attributable to common stockholders		$ 0.22		$ 0.27		$ 0.86		$ 0.28		$ 0.17	$ 0.43	$ 0.70	$ 0.53	$ 1.63	[1]	$ 1.83	$ 2.26
Diluted earnings per share attributable to common stockholders		$ 0.22		$ 0.27		$ 0.86		$ 0.28		$ 0.17	$ 0.43	$ 0.70	$ 0.53	$ 1.63	[1]	$ 1.83	$ 2.26
Restricted Stock Units (RSUs)
Earnings Per Share Disclosure [Line Items]
Common equivalent shares for restricted stock units														300		288	293

[1] See Note 3 for discussion of the impact of ASC 842 that was effective January 1, 2019.

[2] For the years ended December 31, 2017, 2018 and 2019, a weighted average of approximately 596 shares, 640 shares and 721 shares, of unvested restricted stock, respectively, are considered participating securities.