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SCHEDULE II - Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2020
Valuation And Qualifying Accounts [Abstract] |
SCHEDULE II - Valuation and Qualifying Accounts | SCHEDULE II – Valuation and Qualifying Accounts (in thousands)
|  |  |  |  |  | Additions |  |  | Deductions |  |  |  |  |
|  | Balance at Beginning of Period |  |  | Provision Related to Current Period Sales |  |  | Actual Distribution Fees, Discounts and Chargebacks Related to Current Period Sales |  |  | Actual Distribution Fees, Discounts and Chargebacks Related to Prior Period Sales |  |  | Balance at End of Period |
Allowance for distribution fees, discounts and chargebacks: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
For the year ended December 31, 2018 |  | $ | 246 |  |  | $ | 24,613 |  |  | $ | (22,773 | ) |  | $ | (246 | ) |  | $ | 1,840 |
For the year ended December 31, 2019 |  | $ | 1,840 |  |  | $ | 33,827 |  |  | $ | (31,251 | ) |  | $ | (1,840 | ) |  | $ | 2,576 |
For the year ended December 31, 2020 |  | $ | 2,576 |  |  | $ | 51,684 |  |  | $ | (47,463 | ) |  | $ | (2,576 | ) |  | $ | 4,221 |

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- Definition The entire disclosure for valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 09 Reference 2: 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) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 + Details
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- References No definition available. + Details
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