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Product Revenue, Net (Tables) | 6 Months Ended
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Jun. 30, 2023
Revenue from Contract with Customer [Abstract] |
Schedule of Revenue from Customers as a Percentage of Total Product Revenue, Net | Revenue from the following Customers who contributed greater than 10% of our product revenue, net during the three and six months ended June 30, 2023 and 2022 as a percentage of total product revenue, net was as follows:
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2023 |  | 2022 |  | 2023 |  | 2022
Cardinal Health | 22.4 | % |  | 22.7 | % |  | 22.3 | % |  | 21.7 | %
AmerisourceBergen Drug Corporation | 21.1 | % |  | 40.2 | % |  | 21.3 | % |  | 35.1 | %
McKesson Corporation | 18.4 | % |  | 24.6 | % |  | 19.4 | % |  | 22.5 | %
BioRidge Pharma, LLC | 20.0 | % |  | — | % |  | 19.0 | % |  | — | %
Schedule of Chargebacks, Discounts and Reserve Balances | The activities and ending reserve balances for each significant category of discounts and allowances, which constitute variable consideration, were as follows (in thousands):
| Discounts and Chargebacks |  | Rebates, Wholesaler and GPO Fees |  | Copay and Returns |  | Total
Balance as of December 31, 2022 | $ | 142 |  |  | $ | 1,444 |  |  | $ | 1,258 |  |  | $ | 2,844 |
Provisions | 1,978 |  |  | 5,724 |  |  | 5,272 |  |  | 12,974 |
Credits/payments | (1,782) |  |  | (4,325) |  |  | (3,864) |  |  | (9,971) |
Balance as of June 30, 2023 | $ | 338 |  |  | $ | 2,843 |  |  | $ | 2,666 |  |  | $ | 5,847 |

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