Investment in National CineMedia - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Schedule of Equity Method Investments [Line Items]
Equity in (loss) earnings	$ 12,390	$ 11,047	$ 24,597	$ 20,372
Number of additional common units of NCM received under common unit adjustment agreement			753,598
Value of common units received from NCM			$ 11,111	15,421
Remaining term of exhibitor services agreement			20 years
Number of common units of NCM owned by Company	26,384,644		26,384,644
Interest in common units of NCM owned by Company	19.00%		19.00%
Investment In NCM
Schedule of Equity Method Investments [Line Items]
Equity in (loss) earnings			$ (7,660)
Estimated fair value of investment using NCMI's stock price	$ 388,382		$ 388,382
NCMI stock price	$ 14.72		$ 14.72
NCM
Schedule of Equity Method Investments [Line Items]
Equity in (loss) earnings	$ 5,815	$ 6,263	$ 7,660	6,672
Contract termination costs incurred by NCM			26,800
NCM | Theatre Properties and Equipment
Schedule of Equity Method Investments [Line Items]
Payment for installation of certain equipment used for digital advertising			$ 41	$ 39