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Basis of Presentation and Summary of Significant Accounting Policies - Commercial License and Other Economic Rights (Details) - Commercial license rights - USD ($) $ in Thousands | Jun. 30, 2021 | Dec. 31, 2020
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Commercial License and Other Economic Rights |  |
Gross | $ 28,298 | $ 28,298
Adjustments | (17,660) | (17,319)
Net | 10,638 | 10,979
Accumulated amortization on finite-lived intangible assets | (11,700) | (11,300)
Credit loss adjustments of finite-lived intangible assets | (6,000) | (6,000)
Aziyo and CorMatrix |  |
Commercial License and Other Economic Rights |  |
Gross | 17,696 | 17,696
Adjustments | (9,470) | (9,588)
Net | 8,226 | 8,108
Selexis and Dianomi |  |
Commercial License and Other Economic Rights |  |
Gross | 10,602 | 10,602
Adjustments | (8,190) | (7,731)
Net | $ 2,412 | $ 2,871

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