Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Measure of dispersion, in percentage terms (for instance, the standard deviation or variance), for a given stock price.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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No definition available.

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The net realized gain (loss) on investments sold during the period, not including gains (losses) on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, which, for cash flow reporting, is a component of proceeds from investing activities.

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The net cash paid (received) associated with the acquisition or disposal of all investments, including securities and other assets.

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The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period.

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Fair Value Measurements (Additional Information) (Detail) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Feb. 28, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Proceeds from sale of equity and other investments		$ (459)	$ (2,754)	$ (29,153)
Gain (loss) on sale of equity and other investments, net		(159)	2,371	21,389
Financial assets fair value		104,793	167,382
J-Stream, Inc.
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Proceeds from sale of equity and other investments		(500)	(2,800)
Gain (loss) on sale of equity and other investments, net		400	$ 2,400
LoEn Entertainment, Inc
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Proceeds from sale of equity and other investments				(29,200)
Gain (loss) on sale of equity and other investments, net				$ 21,400
Warrant \| Related Party Debt Obligation
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Expected term (in years)	5 years
Expected volatility rate (as a percent)	55.00%
Financial assets fair value	$ 1,200
Loss on warrants		$ (100)