Collaborative Arrangements and Revenue Recognition (Tables)

12 Months Ended

Dec. 31, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Disaggregation of Revenue

The following table presents our contract revenues disaggregated by timing of revenue recognition and excludes royalty revenue (in thousands):

	Twelve months ended December31, 2018
	Point in Time		Over Time
Contract revenue from Healios:
License fee revenue	$	17,682	$	—
Product supply revenue	1,445		—
Service revenue	—		3,149
Other contract revenue	251		—
Total disaggregated revenues	$	19,378	$	3,149