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Revenue Recognition - Summarize Activity of the Net Product Revenue Allowance and Reserve Categories (Detail) - USD ($) $ in Thousands | 9 Months Ended
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Sep. 30, 2022 | Sep. 30, 2021
Valuation And Qualifying Accounts Disclosure [Line Items] |  |
Beginning balance | $ 282,197 | $ 190,827
Provision related to current period sales | 584,945 | 627,571
Provision related to prior period sales | 1,167 | (854)
Credits/payments made for current period sales | (406,425) | (362,460)
Credits/payments made for prior period sales | (263,543) | (172,378)
Ending balance | 198,341 | 282,706
Trade Allowances |  |
Valuation And Qualifying Accounts Disclosure [Line Items] |  |
Beginning balance | 86,636 | 36,242
Provision related to current period sales | 71,164 | 90,761
Credits/payments made for current period sales | (26,746) | (27,635)
Credits/payments made for prior period sales | (83,398) | (34,511)
Ending balance | 47,656 | 64,857
Rebates, Chargebacks and Discounts |  |
Valuation And Qualifying Accounts Disclosure [Line Items] |  |
Beginning balance | 184,726 | 141,201
Provision related to current period sales | 490,995 | 497,726
Provision related to prior period sales | 1,167 | (854)
Credits/payments made for current period sales | (360,256) | (303,029)
Credits/payments made for prior period sales | (176,107) | (131,320)
Ending balance | 140,525 | 203,724
Product Returns |  |
Valuation And Qualifying Accounts Disclosure [Line Items] |  |
Beginning balance | 8,090 | 7,797
Provision related to current period sales | 1,738 | 2,647
Credits/payments made for prior period sales | (1,408) | (958)
Ending balance | 8,420 | 9,486
Other Incentives |  |
Valuation And Qualifying Accounts Disclosure [Line Items] |  |
Beginning balance | 2,745 | 5,587
Provision related to current period sales | 21,048 | 36,437
Credits/payments made for current period sales | (19,423) | (31,796)
Credits/payments made for prior period sales | (2,630) | (5,589)
Ending balance | $ 1,740 | $ 4,639

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