ACCRUED EXPENSES - Summary of Accrued Expenses (Detail) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Payables and Accruals [Abstract]
Accrued contract manufacturing costs	$ 204,867	$ 104,311
Product revenue related reserves	68,361	62,145
Accrued clinical and pre-clinical costs	33,832	25,955
Accrued employee compensation costs	32,191	48,299
Accrued royalties	14,746	11,965
Accrued professional fees	13,574	9,381
Accrued interest expense	1,092	1,045
Accrued income taxes	2,485	216
Accrued collaboration cost sharing	2,868	2,887
Accrued sponsored research agreements	1,651	3,377
Accrued fixed assets	1,462	127
Other	6,570	1,989
Total accrued expenses	$ 383,699	$ 271,697