Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2018

Commitments and Contingencies Disclosure [Abstract]

Commitment Payment to Strategic Business Partners

The table below summarizes contingent, potential milestone payments that would become due to strategic partners in the years 2018 and beyond, assuming all such contingencies occur (in thousands):

Year ending December 31,	Milestone Payments
2018	$	12,994
2019	5,220
2020	3,070
2021 and Beyond	950
Total	$	22,234