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Investment And Other Gains Investment And Other Gains (Tables)

12 Months Ended

Dec. 31, 2018

Investment And Other Gains [Abstract]

Schedule of Investment And Other Gains [Table Text Block]

The following table summarizes our investment and other gains (in thousands):

	Year Ended December 31,
	2018				2017				2016
Gains on sales of marketable securities	$	—			$	10,038			$	29,673
Gain on sale of real estate	—				50				4,582
Other gains	—				—				1,657
	$	—			$	10,088			$	35,912

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Investment And Other Gains [Abstract]

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Tabular disclosure of the components of non-operating income or non-operating expense that may include amounts earned from dividends, interest on securities, gains (losses) on securities sold, equity earnings of unconsolidated affiliates, net gain (loss) on sales of business, interest expense and other miscellaneous income or expense items.

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