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Accumulated Other Comprehensive Loss (Tables) | 9 Months Ended
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Sep. 30, 2019
Accumulated Other Comprehensive Loss [Abstract] |
Schedule of Accumulated Other Comprehensive Income (Loss) | The following table sets forth the components of accumulated other comprehensive income (loss), net of tax where applicable (in thousands):
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​ | ​ | September 30, 2019 | ​ | December 31, 2018
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Foreign currency translation | ​ | $ | (3) | ​ | $ | (2)
Unrealized gains (losses) on marketable securities | ​ | ​ | 75 | ​ | ​ | (171)
Accumulated other comprehensive income (loss) | ​ | $ | 72 | ​ | $ | (173)

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669686-108580 + Details
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