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Revenue Recognition - Summarize Activity of the Net Product Revenue Allowance and Reserve Categories (Detail) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2022 | Mar. 31, 2021
Valuation And Qualifying Accounts Disclosure [Line Items] |  |
Beginning balance | $ 280,693 | $ 190,827
Provision related to current period sales | 179,774 | 191,325
Provision related to prior period sales | (301) | (854)
Credits/payments made for current period sales | (76,832) | (29,525)
Credits/payments made for prior period sales | (139,615) | (121,126)
Ending balance | 243,719 | 230,647
Trade Allowances |  |
Valuation And Qualifying Accounts Disclosure [Line Items] |  |
Beginning balance | 86,636 | 36,242
Provision related to current period sales | 22,697 | 29,134
Credits/payments made for current period sales | (2,753) | (3,582)
Credits/payments made for prior period sales | (13,536) | (7,086)
Ending balance | 93,044 | 54,708
Rebates, Chargebacks and Discounts |  |
Valuation And Qualifying Accounts Disclosure [Line Items] |  |
Beginning balance | 184,726 | 141,201
Provision related to current period sales | 148,203 | 148,241
Provision related to prior period sales | (301) | (854)
Credits/payments made for current period sales | (67,700) | (16,136)
Credits/payments made for prior period sales | (123,099) | (108,020)
Ending balance | 141,829 | 164,432
Product Returns |  |
Valuation And Qualifying Accounts Disclosure [Line Items] |  |
Beginning balance | 8,090 | 7,797
Provision related to current period sales | 549 | 828
Credits/payments made for prior period sales | (350) | (402)
Ending balance | 8,289 | 8,223
Other Incentives |  |
Valuation And Qualifying Accounts Disclosure [Line Items] |  |
Beginning balance | 1,241 | 5,587
Provision related to current period sales | 8,325 | 13,122
Credits/payments made for current period sales | (6,379) | (9,807)
Credits/payments made for prior period sales | (2,630) | (5,618)
Ending balance | $ 557 | $ 3,284

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- Definition Amount of increase in valuation and qualifying accounts and reserves from charge to cost and expense. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09(Column C)(1)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 + Details
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