Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $)	Sep. 30, 2011	Dec. 31, 2010
Cinemark Holdings, Inc.'s stockholders' equity:
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	300,000,000	300,000,000
Common stock, shares issued	117,593,329	117,110,703
Common stock, shares outstanding	114,202,804	113,750,844
Treasury stock, shares	3,390,525	3,359,859