Investments Cost Method Investments (Tables)

3 Months Ended

Mar. 31, 2018

Schedule of Cost-method Investments [Line Items]

Schedule of Cost Method Investments [Table Text Block]

The following table summarizes the gross unrealized gains and losses and estimated fair values for the Company’s securities without a readily determinable fair value (in thousands):

	Cost		Impairment	Adjustments		Fair Value
March 31, 2018
Equity securities	$	34,977	—	(3,678	)	$	31,299
Total	$	34,977	—	(3,678	)	$	31,299
December 31, 2017
Equity securities	$	34,977	—	—		$	34,977
Total	$	34,977	—	—		$	34,977