Investment in Digital Cinema Implementation Partners - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Schedule of Equity Method Investments [Line Items]
Equity in earnings	$ 10,328	$ 11,733	$ 17,548	$ 15,839
Digital Cinema Implementation Partners LLC
Schedule of Equity Method Investments [Line Items]
Voting interest in Digital Cinema Implementation Partners	33.00%		33.00%
Economic interest in Digital Cinema Implementation Partners	24.30%		24.30%
Equity in earnings	4,791	4,613	10,969	7,315
Digital projection systems leased under operating lease, initial term			12 years
Number of equipment being leased under master equipment lease agreement	3,666		3,666
Equipment lease expense			3,005	2,848
Number of one-year fair value renewal options			10
Minimum annual rent per digital projection system			$ 1