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Balance Sheet Components - Schedule of Other Long-term Liabilities (Detail) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
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Other Liabilities Noncurrent [Abstract] |  |
Accrued long-term co-promotion expenses | $ 15,236 | $ 27,424
Other long-term tax liabilities | 9,192 | 8,675
Other | 1,590 | 2,690
Total other long-term liabilities | $ 26,018 | $ 38,789

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