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Revenue Recognition - Summarize Activity of the Net Product Revenue Allowance and Reserve Categories (Detail) - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2024 | Sep. 30, 2023
Valuation And Qualifying Accounts Disclosure [Line Items] |  |
Beginning balance | $ 171,501 | $ 191,521
Provision related to current period sales | 661,470 | 613,701
Provision related to prior period sales | (2,111) | (15,257)
Credits/payments made for current period sales | (542,351) | (485,808)
Credits/payments made for prior period sales | (160,109) | (119,913)
Ending balance | 128,400 | 184,244
Trade Allowances |  |
Valuation And Qualifying Accounts Disclosure [Line Items] |  |
Beginning balance | 18,834 | 44,626
Provision related to current period sales | 62,211 | 67,003
Credits/payments made for current period sales | (50,145) | (30,450)
Credits/payments made for prior period sales | (18,383) | (42,389)
Ending balance | 12,517 | 38,790
Rebates, Chargebacks and Discounts |  |
Valuation And Qualifying Accounts Disclosure [Line Items] |  |
Beginning balance | 143,033 | 136,093
Provision related to current period sales | 589,133 | 531,700
Provision related to prior period sales | (2,111) | (15,113)
Credits/payments made for current period sales | (484,127) | (442,673)
Credits/payments made for prior period sales | (136,588) | (75,297)
Ending balance | 109,340 | 134,710
Product Returns |  |
Valuation And Qualifying Accounts Disclosure [Line Items] |  |
Beginning balance | 7,732 | 8,746
Provision related to current period sales | 1,459 | 1,634
Provision related to prior period sales |  | (250)
Credits/payments made for current period sales | (167) | (953)
Credits/payments made for prior period sales | (3,152) | (1,219)
Ending balance | 5,872 | 7,958
Other Incentives |  |
Valuation And Qualifying Accounts Disclosure [Line Items] |  |
Beginning balance | 1,902 | 2,056
Provision related to current period sales | 8,667 | 13,364
Provision related to prior period sales |  | 106
Credits/payments made for current period sales | (7,912) | (11,732)
Credits/payments made for prior period sales | (1,986) | (1,008)
Ending balance | $ 671 | $ 2,786

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