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Summary of Changes in Company's Investment in Digital Implementation Partners (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Schedule of Equity Method Investments [Line Items]    
Equity in income $ 3,620 $ 2,421
Equity in other comprehensive income 262  
Digital Cinema Implementation Partners LLC
   
Schedule of Equity Method Investments [Line Items]    
Beginning balance 38,033  
Cash contributions 946  
Equity in income 3,294 1,552
Equity in other comprehensive income 43  
Ending balance $ 42,316