Research and Collaboration Agreements (Tables)

6 Months Ended

Jun. 30, 2022

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Revenue by Collaboration Partners

The following table summarizes the revenue by collaboration partner:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2022		2021		2022		2021
	(in thousands)				(in thousands)
AbbVie	$	5,377	$	2,078	$	7,804	$	3,306
Amgen		369		1,874		2,657		4,456
Astellas		5,014		4,931		10,031		9,687
Bristol Myers Squibb		7,405		7,405		14,810		14,810
Total revenue	$	18,165	$	16,288	$	35,302	$	32,259

Summary of Contract Liabilities

The following table presents changes in the Company’s total contract liabilities during the six months ended June 30, 2022:

	Balance at 12/31/2021		Additions		Deductions			Balance at 6/30/2022
	(in thousands)
Contract liabilities:
Deferred revenue	$	194,922	$	—	$	(33,272	)	$	161,650