Investments Change in fair value of equity investments (Tables)

9 Months Ended

Sep. 30, 2018

Debt Securities, Available-for-sale [Line Items]

Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Table Text Block]

ain on change in fair value of equity investments for the three and nine months ended September 30, 2018 and September 30, 2017 is comprised as follows:

(in thousands)	Three months ended September 30,					Nine months ended September 30,
	2018			2017		2018			2017
Net gains recognized on equity investments sold during the period	$	905		$	—	$	1,150		$	—
Change in unrealized losses on equity investments held at end of the period	(568		)	—		(69		)	—
Gain on change in fair value of equity investments	$	337		$	—	$	1,081		$	—