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Income Taxes - Schedule of Open Tax Years for Which the Company could be Subject to Income Tax Examination (Details) | 12 Months Ended
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Dec. 31, 2018
United States | Earliest Tax Year |
Income Tax Examination [Line Items] |
Year under examination | 2015
United States | Latest Tax Year |
Income Tax Examination [Line Items] |
Year under examination | 2018
China | Earliest Tax Year |
Income Tax Examination [Line Items] |
Year under examination | 2008
China | Latest Tax Year |
Income Tax Examination [Line Items] |
Year under examination | 2018
France | Earliest Tax Year |
Income Tax Examination [Line Items] |
Year under examination | 2015
France | Latest Tax Year |
Income Tax Examination [Line Items] |
Year under examination | 2018
Germany | Earliest Tax Year |
Income Tax Examination [Line Items] |
Year under examination | 2011
Germany | Latest Tax Year |
Income Tax Examination [Line Items] |
Year under examination | 2018

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Tax year that remains open to examination under enacted tax laws, in CCYY format. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319 + Details
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