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Revenue Recognition - Summarize Activity of the Net Product Revenue Allowance and Reserve Categories (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Valuation And Qualifying Accounts Disclosure [Line Items] |  |
Beginning balance | $ 190,824 | $ 128,557
Provision related to current period sales | 852,420 | 822,813
Provision related to prior period sales | (2,034) | (3,872)
Credits/payments made for current period sales | (583,437) | (637,999)
Credits/payments made for prior period sales | (175,547) | (118,675)
Ending balance | 282,226 | 190,824
Trade Allowances |  |
Valuation And Qualifying Accounts Disclosure [Line Items] |  |
Beginning balance | 36,242 | 29,261
Provision related to current period sales | 121,378 | 132,881
Credits/payments made for current period sales | (36,473) | (96,834)
Credits/payments made for prior period sales | (34,511) | (29,066)
Ending balance | 86,636 | 36,242
Rebates, Chargebacks and Discounts |  |
Valuation And Qualifying Accounts Disclosure [Line Items] |  |
Beginning balance | 141,200 | 90,997
Provision related to current period sales | 684,010 | 621,937
Provision related to prior period sales | (2,034) | (3,872)
Credits/payments made for current period sales | (504,210) | (482,254)
Credits/payments made for prior period sales | (134,210) | (85,608)
Ending balance | 184,756 | 141,200
Product Returns |  |
Valuation And Qualifying Accounts Disclosure [Line Items] |  |
Beginning balance | 7,798 | 4,579
Provision related to current period sales | 1,531 | 3,543
Credits/payments made for prior period sales | (1,240) | (324)
Ending balance | 8,089 | 7,798
Other Incentives |  |
Valuation And Qualifying Accounts Disclosure [Line Items] |  |
Beginning balance | 5,584 | 3,720
Provision related to current period sales | 45,501 | 64,452
Credits/payments made for current period sales | (42,754) | (58,911)
Credits/payments made for prior period sales | (5,586) | (3,677)
Ending balance | $ 2,745 | $ 5,584

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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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