Investment in National CineMedia - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
	Mar. 30, 2017	Mar. 31, 2017	Mar. 31, 2016
Schedule of Equity Method Investments [Line Items]
Number of additional common units of NCM received under common unit adjustment agreement	1,487,218
Value of common units received from NCM		$ 18,363	$ 11,111
Remaining term of exhibitor services agreement		19 years
Number of common units of NCM owned by Company		27,871,862
Interest in common units of NCM owned by Company		18.00%
NCM | Theatre Properties and Equipment
Schedule of Equity Method Investments [Line Items]
Payment for installation of certain equipment used for digital advertising		$ 18	$ 22
Investment In NCM
Schedule of Equity Method Investments [Line Items]
Estimated fair value of investment using NCMI's stock price		$ 352,021
NCMI stock price		$ 12.63