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Subsequent Events - Additional Information (Details) - KRW (₩) ₩ in Millions | Feb. 23, 2024 | Feb. 15, 2024
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Disposal of major subsidiary [member] |  |
Disclosure of non-adjusting events after reporting period [line items] |  |
Percentage Of Shares Sold |  | 21.43%
Sale of stock shares value |  | ₩ 221,490
Entering into significant commitments or contingent liabilities [member] |  |
Disclosure of non-adjusting events after reporting period [line items] |  |
Value of contribution for construction of campus of korea institute of energy technology | ₩ 76,600 |

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