Quarterly report pursuant to Section 13 or 15(d)

Investment in Digital Cinema Implementation Partners - Additional Information (Detail)

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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