Collaborations and Other Arrangements - Summary of Changes in Accounts Receivable and Contract Liabilities (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Accounts receivable:
Accounts receivable, Balance at Beginning of Period	$ 8,517	$ 36,456
Accounts receivable, Additions	20,439	11,809
Accounts receivable, Deductions	(17,603)	(35,936)
Accounts receivable, Balance at End of Period	11,353	12,329
Contract liabilities:
Deferred revenue, Balance at Beginning of Period	38,917	60,993
Deferred revenue, Additions	1,079	0
Deferred revenue, Deductions	(10,303)	(10,757)
Deferred revenue, Balance at End of Period	$ 29,693	$ 50,236