Commitments, Contingencies and Related Party Transactions - Summary of Future Minimum Product Royalties (Detail) $ in Thousands	Dec. 31, 2020 USD ($)
Commitments And Contingencies Disclosure [Abstract]
2021	$ 35,105
2022	13,118
2023	1,445
Thereafter	0
Total Future Minimum Royalty Payments	$ 49,668