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Investment in Marketable Securities - RealD, Inc. - Additional Information (Detail) (USD $) In Thousands, except Share data, unless otherwise specified | 1 Months Ended | 12 Months Ended | 24 Months Ended |  |
--- | --- | --- | --- | --- | ---
Mar. 31, 2011 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2011 | Dec. 21, 2013 | Dec. 31, 2010
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Number of options to purchase common stock |  |  |  |  |  | 1,222,780 |  |
Fair value of options earned |  |  |  |  | $ 3,402 | $ 22,311 |  |
Exercise price of options, shares | $ 0.00667 |  |  |  |  |  |  |
License agreement remaining term |  |  |  |  |  |  | 5 years |
Cumulative net unrealized holding losses from accumulated other comprehensive income (loss) to earnings |  |  |  |  | 12,610 |  |  |
Number of shares owned in RealD |  | 1,222,780 |  |  |  |  |  |
Estimated fair value of company owned shares in RealD |  | 10,443 | [1] | 13,707 | 9,709 | 9,709 |  | 27,993
Unrealized holding loss |  | $ (3,264) |  | $ 3,998 | $ (21,694) |  |  |
[1] | Investment in RealD is included in investments in and advances to affiliates on the consolidated balance sheets.

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- Definition Exercise Price Per Share Of Vested Options To Purchase Common Stock Of Company Three + References No definition available. + Details
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- Definition Estimated fair value of RealD options earned under license agreement. + References No definition available. + Details
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- Definition This item represents the fair value of the entity's investment in real d which is in the form of equity securities. The entity has classified these equity securities as available for sale. + References No definition available. + Details
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- Definition Number of shares of RealD stock owned by the Company. + References No definition available. + Details
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- Definition Number of options to purchase common shares of RealD in which the company has vested. + References No definition available. + Details
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- Definition The amount of other than temporary impairment recognized on available-for-sale securities held by the Company. + References No definition available. + Details
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- Definition Remaining term of license agreement with RealD. + References No definition available. + Details
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- Definition The aggregate net change in the difference between the fair value and the carrying value, or in the comparative fair values, of marketable securities categorized as trading held at each balance sheet date, that was included in earnings for the period, which may have arisen from (a) securities classified as trading, (b) the unrealized holding gain (loss) on held-to-maturity securities transferred to the trading security category, and (c) the cumulative unrealized gain (loss) which was included in other comprehensive income (a separate component of shareholders' equity) on available-for-sale securities transferred to trading securities during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27357-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27405-111563 + Details
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