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Investment in Digital Cinema Implementation Partners - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified | 1 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2010 | Dec. 31, 2012 RenewalOptions ProjectionSystem | Dec. 31, 2011 | Dec. 31, 2010
Schedule of Equity Method Investments [Line Items] |  |  |  |
Fair value of digital projection systems contributed by the Company | $ 16,380 |  |  |
Net book value of the contributed equipment | 18,090 |  |  | 18,090
Loss on sale of assets | 1,710 |  |  |
Voting interest in Digital Cinema Implementation Partners |  | 33.00% |  |
Economic interest in Digital Cinema Implementation Partners |  | 24.30% |  |
Digital projection systems leased under operating lease, initial term |  | 12 years |  |
Number of equipments being leased under master equipment lease agreement |  | 3,515 |  |
Equipment lease expense |  | 1,354 | 5,332 | 7,802
Number of one-year fair value renewal options |  | 10 |  |
Minimum annual rent per digital projection system |  | 1,000 |  |
Minimum annual rent per digital projection system through the end of the lease term |  | 3,000 |  |
Depreciation expense on domestic 35 millimeter projectors |  | 9,423 |  | 10,604
Digital Projection Systems |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Net Book Value of digital projection systems sold |  |  | 3,777 | 1,520
Loss on digital projection systems sold reflected in loss on sale of assets and other |  |  | 2,739 | 1,197
Proceeds from sale of digital projection systems |  |  | $ 1,038 | $ 323

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