Annual report pursuant to Section 13 and 15(d)

Summary of Changes in Company's Investment in Digital Implementation Partners (Detail)

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Summary of Changes in Company's Investment in Digital Implementation Partners (Detail) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Schedule of Equity Method Investments [Line Items]      
Beginning balance $ 12,798    
Equity in (income) loss of affiliates (13,109) (5,651) 3,438
Ending balance 23,012 12,798  
Digital Cinema Implementation Partners LLC
      
Schedule of Equity Method Investments [Line Items]      
Beginning balance 12,798 10,838 640
Cash contributions 1,325 1,471 2,813
Equipment contributions, at fair value     16,380
Distributions received     (1,068)
Equity in (income) loss of affiliates 8,889 489 (7,927)
Ending balance $ 23,012 $ 12,798 $ 10,838