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Accounts Payable and Accrued Liabilities (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Accounts Payable and Accrued Liabilities. |  |
Accrued customer fees and rebates | $ 11,581 | $ 9,029
Accrued payroll and related benefits | 27,324 | 24,597
Accrued product returns, current portion | 14,823 | 10,190
Accrued loss on firm purchase commitments | 3,449 | 1,223
Accrued litigation settlement |  | 13,780
Other accrued liabilities | 10,076 | 12,328
Total accrued liabilities | 67,253 | 71,147
Accounts payable | 21,658 | 24,357
Total accounts payable and accrued liabilities | $ 88,911 | $ 95,504

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