Quarterly report pursuant to Section 13 or 15(d)

Changes in Accumulated Other Comprehensive Loss, Net of Taxes, Related to Investment in RealD (Detail)

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Changes in Accumulated Other Comprehensive Loss, Net of Taxes, Related to Investment in RealD (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Beginning balances     $ 457 $ 2,499
Other comprehensive income (loss), net of taxes of $374 and $1,933 (2,603) (5,256) 641 (3,215)
Ending balances $ 1,098 $ (716) $ 1,098 $ (716)