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Other Financial Information - Schedule of Interest and Other Income (Expenses) (Details) - USD ($) $ in Thousands | 9 Months Ended
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Sep. 30, 2020 | Sep. 30, 2019
Other Financial Information [Abstract] |  |
Interest income | $ 1,719 | $ 3,610
Other finance expenses | (192) | (144)
Total finance income | $ 1,527 | $ 3,466

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- Definition Finance income expense net. + References No definition available. + Details
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Period Type: | duration

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- Definition Other finance expenses (income). + References No definition available. + Details
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- Definition Other financial information. + References No definition available. + Details
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- Definition Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.7(b)) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599 + Details
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