Income Taxes - Schedule of Open Tax Years for Which the Company could be Subject to Income Tax Examination (Details)	12 Months Ended
Dec. 31, 2020
United States \| Earliest Tax Year
Income Tax Examination [Line Items]
Year under examination	2016
United States \| Latest Tax Year
Income Tax Examination [Line Items]
Year under examination	2020
China \| Earliest Tax Year
Income Tax Examination [Line Items]
Year under examination	2010
China \| Latest Tax Year
Income Tax Examination [Line Items]
Year under examination	2020
France \| Earliest Tax Year
Income Tax Examination [Line Items]
Year under examination	2017
France \| Latest Tax Year
Income Tax Examination [Line Items]
Year under examination	2020
Germany \| Earliest Tax Year
Income Tax Examination [Line Items]
Year under examination	2015
Germany \| Latest Tax Year
Income Tax Examination [Line Items]
Year under examination	2020

Tax year that remains open to examination under enacted tax laws, in CCYY format.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-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

Name:	us-gaap_OpenTaxYear
Namespace Prefix:	us-gaap_
Data Type:	us-types:gYearListItemType
Balance Type:	na
Period Type:	duration