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Investment in RealD (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 | $ 9,709 | $ 27,993 |
Fair value of options earned |  | 3,402 | 18,909
Exercise of options at $0.00667 per share |  | 8 |
Unrealized holding gain (loss) | 3,998 | (21,694) | 9,084
Ending Balance | $ 13,707 | $ 9,709 | $ 27,993

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- Definition Estimated fair value of RealD options earned under license agreement. + References No definition available. + Details
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Balance Type: | debit
Period Type: | duration

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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 Exercise price per share to purchase common stock of Real D. + References No definition available. + Details
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- Definition This item represents the pretax change in net unrealized holding gain (loss) on available-for-sale securities that has been included in accumulated other comprehensive income, a separate component of shareholders' equity, during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 21 -Subparagraph d -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: 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=6872113&loc=d3e27357-111563 + Details
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- Details
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