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Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Reconciliation of segment Adjusted OIBDA to earnings (loss) before income taxes
Combined segment Adjusted OIBDA	$ 4,560	$ (3,961)
Stock-based compensation	(1,405)	(1,448)
Depreciation and amortization	(909)	(953)
Operating income (loss)	2,246	(6,362)
Interest expense	(5,037)	(4,555)
Dividend and interest income	225	338
Share of (earnings) loses of affiliates, net	9,302	18,922
Realized and unrealized gains (losses) on financial instruments, net		981
Gain (loss) on dilution of investment in affiliate	(26,757)	(32,138)
Other, net		(1)
Net earnings (loss) before income taxes	$ (20,021)	$ (22,815)

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- Definition

Represents the amount of adjusted OIBDA, which is defined as revenue less cost of sales, operating expenses, and selling, general and administrative expenses (excluding stock based compensation).

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Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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