Computations of Basic and Diluted Earnings Per Share (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2013		Jun. 30, 2012		Jun. 30, 2013		Jun. 30, 2012
Earnings Per Share Disclosure [Line Items]
Net income attributable to Cinemark Holdings, Inc.	$ 20,265		$ 51,638		$ 52,859		$ 93,742
Earnings allocated to participating share-based awards	(225)	[1]	(698)	[1]	(547)	[1]	(1,084)	[1]
Net income attributable to common stockholders	$ 20,040		$ 50,940		$ 52,312		$ 92,658
Basic weighted average common stock outstanding	114,007		113,301		113,745		113,063
Common equivalent shares for stock options	9		39		10		38
Common equivalent shares for restricted stock units	371		397		455		467
Diluted	114,387		113,737		114,210		113,568
Basic earnings per share attributable to common stockholders	$ 0.18		$ 0.45		$ 0.46		$ 0.82
Diluted earnings per share attributable to common stockholders	$ 0.18		$ 0.45		$ 0.46		$ 0.82

[1] For the three months ended June 30, 2013 and 2012, a weighted average of approximately 1,289 and 1,558 shares of unvested restricted stock, respectively, were considered participating securities. For the six months ended June 30, 2013 and 2012, a weighted average of approximately 1,197 and 1,328 shares of unvested restricted stock, respectively, were considered participating securities.