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Statements of Cash Flows - Summary of Significant Non-cash Transactions (Details) - KRW (₩) ₩ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Disclosure Of Cash Flow Statement [Abstract] |  |  |
Reclassification of prepayment to intangible assets | ₩ 102 | ₩ 64 | ₩ 219
Increase of accounts payable relating to the acquisition of software | 2,033 | 609 | 667
Acquisitions of right-of-use assets | 4,704 | 1,209 | 6,055
Increase of accounts payable relating to the acquisition of other intangible assets | 1,147 | 0 | 0
Reclassification of other non-current financial asset to other non- current assets | ₩ 1,030 | ₩ 0 | ₩ 0

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