OTHER ASSETS - Summary of Other Current Assets (Detail) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Prepaid Expense and Other Assets, Current [Abstract]
Manufacturing-related deposits and prepaids	$ 69,502	$ 93,656
Collaboration receivable	26,421	18,647
Prepaid clinical and pre-clinical expenses	10,707	12,667
Prepaid maintenance services	7,644	8,452
Prepaid insurance	3,280	5,282
Prepaid research expenses	1,973	3,082
Other	9,805	7,242
Total other current assets	$ 129,332	$ 149,028