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Condensed consolidated financial statement details - Future Amortization (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
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Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |
2021 | $ 1,152 |
Net carrying value | 1,199 | $ 5,232
Finite-Lived Intangible Assets, Amortization Expense, Year Three | $ 47 |

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- Definition Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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