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Revenue Recognition (Tables) | 9 Months Ended
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Sep. 30, 2021
Accounting Policies [Abstract] |
Disaggregation of Revenue | Revenues for the three and nine months ended September 30, 2021 and 2020 were as follows:
|  | Three Months Ended |  |  | Nine Months Ended |
|  | September 30, |  |  | September 30, |
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
|  | (Amounts in thousands) |
Product revenue |  | $ | 178,177 |  |  | $ | 94,029 |  |  | $ | 483,834 |  |  | $ | 257,521 |
Royalty and other income |  |  | 39 |  |  |  | 31 |  |  |  | 179 |  |  |  | 91 |
Total revenue |  | $ | 178,216 |  |  | $ | 94,060 |  |  | $ | 484,013 |  |  | $ | 257,612 |
Summary of Receivables and Deferred Revenue from Contracts with Customers | The following table provides information about receivables and deferred revenue from contracts with customers as of September 30, 2021 (amounts in thousands):
|  | 2021 |
Balances from contracts with customers only: |  |  |
Accounts receivable, net of reserves |  | $ | 122,048 |
Deferred revenue (included in accrued liabilities in the consolidated balance sheets) |  | $ | 16,337 |
Revenue recognized during the nine-month period ended September 30, 2021 relating to: |  |  |
The beginning deferred revenue balance |  | $ | 13,071 |

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- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130551-203045 + Details
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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130545-203045 + Details
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