Investment in National CineMedia - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Schedule of Equity Method Investments [Line Items]
Equity in earnings	$ 7,142	$ 5,239
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
Interest in common units of NCM owned by Company	19.00%
Investment In NCM
Schedule of Equity Method Investments [Line Items]
Equity in earnings	$ (1,873)
Estimated fair value of investment using NCMI's stock price	$ 401,310
NCMI stock price	$ 15.21
NCM
Schedule of Equity Method Investments [Line Items]
Equity in earnings	$ 1,873	795
NCM | Theatre Properties and Equipment
Schedule of Equity Method Investments [Line Items]
Payment for installation of certain equipment used for digital advertising	$ 22	$ 20