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Other Long-Term Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2020
Other Long-Term Liabilities |
Schedule of other long-term liabilities |
|  | December 31, |  | December 31,
|  | 2020 |  | 2019
|  | (In thousands)
Net deferred tax liabilities related to IPR&D (Note 15) |  | $ | 1,840 |  | $ | 3,007
Deferred income from sale of tax benefits |  |  | — |  |  | 1,831
Contingent milestones (Note 4) |  |  | 8,267 |  |  | 12,485
Deferred revenue (Note 13) |  |  | 3,386 |  |  | 254
Total |  |  | 13,493 |  |  | 17,577
Less current portion |  |  | (3,372) |  |  | (2,026)
Long-term portion |  | $ | 10,121 |  | $ | 15,551

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