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Revenue Recognition (Tables) | 6 Months Ended
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Jun. 30, 2020
Revenue Recognition [Abstract] |
Summary of Product Revenue Allowance and Reserve Categories | The following table summarizes balances and activity in each of the product revenue allowance and reserve categories for the six months ended June 30, 2020 (in thousands):
|  | Balance at Beginning of Period |  |  | Provisions related to current period sales |  |  | Credit or payments made during the period |  |  | Balance at End of Period |
Six months ended June 30, 2020: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accounts receivable reserves(1) |  | $ | 2,701 |  |  | $ | 3,594 |  |  | $ | (4,230 | ) |  | $ | 2,065 |
Revenue reserve accruals(2) |  | $ | 3,893 |  |  | $ | 2,793 |  |  | $ | (2,816 | ) |  | $ | 3,870 |
(1) | Reserves are for chargebacks, discounts and other fees.
(2) | Accruals are for returns, rebates and other fees.

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