Quarterly report pursuant to Section 13 or 15(d)

Investment in National CineMedia - Additional Information (Detail)

v3.7.0.1
Investment in National CineMedia - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended
Mar. 30, 2017
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Schedule of Equity Method Investments [Line Items]          
Equity in (loss) earnings   $ 5,805 $ 5,065 $ 15,865 $ 12,207
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       20 years  
Number of common units of NCM owned by Company   27,871,862   27,871,862  
Interest in common units of NCM owned by Company   18.00%   18.00%  
Investment In NCM          
Schedule of Equity Method Investments [Line Items]          
Equity in (loss) earnings       $ 3,065  
Estimated fair value of investment using NCM's stock price   $ 206,809   $ 206,809  
NCM stock price   $ 7.42   $ 7.42  
NCM          
Schedule of Equity Method Investments [Line Items]          
Equity in (loss) earnings   $ (176) $ (28) $ 3,065 1,845
NCM | Theatre Properties and Equipment          
Schedule of Equity Method Investments [Line Items]          
Payment for installation of certain equipment used for digital advertising       $ 50 $ 28