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v3.23.2

Government Grant (Details) $ in Millions, ₩ in Billions | 1 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2022 KRW (₩) | Jun. 30, 2023 KRW (₩) | Jun. 30, 2023 USD ($) | Dec. 31, 2022 USD ($)
Government Assistance [Abstract] |  |  |  |
Government assistance, transaction duration | 5 years |  |  |
Government assistance, unearned government grant | ₩ 8.4 | ₩ 8.4 | $ 6.4 | $ 6.7

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- Definition Government Assistance, Unearned Government Grant + References No definition available. + Details
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Namespace Prefix: | ses_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
Name: | us-gaap_GovernmentAssistanceAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Duration of government assistance transaction, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 832 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483507/832-10-50-4 + Details
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Period Type: | duration