Discontinued Operations - Additional Information (Detail) - Theatre	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Discontinued Operations and Disposal Groups [Abstract]
Number of theatres closed during the period	1	0	7	0
Number of theatres closed during the period as discontinued operations	0	0