Commitments and Contingencies - Additional Information (Details) - KRW (₩) ₩ in Millions	Dec. 31, 2025	Dec. 31, 2024
Disclosure of contingent liabilities [line items]
Purchase obligations	₩ 2,713	₩ 4,836
Seoul Guarantee Insurance Co. Ltd.
Disclosure of contingent liabilities [line items]
Amount of payment guarantee	₩ 110

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

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