Collaborations and Other Arrangements - Summary of Changes in Accounts Receivable and Contract Liabilities (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Accounts receivable:
Accounts receivable, Balance at Beginning of Period	$ 2,031	$ 2,130
Accounts receivable, Additions	4,655	3,079
Accounts receivable, Deductions	3,832	3,216
Accounts receivable, Balance at End of Period	2,854	1,993
Contract liabilities:
Deferred revenue, Balance at Beginning of Period	127,235	73,931
Deferred revenue, Deductions	(30,099)	(11,179)
Deferred revenue, Balance at End of Period	$ 97,136	$ 62,752