Accrued Expenses - Summary of Accrued Expenses (Detail) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Payables and Accruals [Abstract]
Product revenue related reserves	$ 104,652	$ 100,075
Accrued contract manufacturing costs	77,451	33,024
Accrued employee compensation costs	50,023	78,732
Accrued clinical and pre-clinical costs	36,221	34,669
Accrued professional fees	22,885	17,187
Accrued fixed assets	21,163	3,231
Accrued income taxes	18,186	13,766
Accrued royalties	7,724	12,070
Accrued interest	4,368	4,395
Accrued research expenses	2,737	2,441
Other	4,994	4,032
Total accrued expenses	$ 350,404	$ 314,997