Collaboration Agreements (Tables)

9 Months Ended

Sep. 30, 2020

Collaboration Agreement [Abstract]

Schedule of Changes in Contract Liabilities

The following table presents changes in the Company’s contract liabilities (in thousands):

	Balance at Beginning of Period		Additions		Deductions			Balance at End of Period
Nine Months Ended September 30, 2020
Contract liabilities:
Deferred revenue	$	37,048	$	40,000	$	(68,061	)	$	8,987

	Balance at Beginning of Period		Additions		Deductions			Balance at End of Period
Nine Months Ended September 30, 2019
Contract liabilities:
Deferred revenue	$	40,660	$	—	$	(2,241	)	$	38,419