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Accounts and Other Receivables - Summary of Accounts and Other Receivables (Details) - KRW (₩) ₩ in Millions | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
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Trade And Other Receivables [Line Items] |  |  |  |
Accounts receivable, net | ₩ 71,213 | ₩ 77,257 |  |
Other receivables, net | 3,637 | 140 |  |
Accounts receivable |  |  |  |
Trade And Other Receivables [Line Items] |  |  |  |
Non-related party | 69,867 | 74,702 |  |
Related party | 1,972 | 2,874 |  |
Accounts receivable | Loss allowance |  |  |  |
Trade And Other Receivables [Line Items] |  |  |  |
Less : Loss allowance | (626) | (319) | ₩ (689) | ₩ (579)
Accounts receivable | Loss allowance | Lifetime expected credit losses [member] |  |  |  |
Trade And Other Receivables [Line Items] |  |  |  |
Less : Loss allowance | (626) | (319) |  |
Other receivables |  |  |  |
Trade And Other Receivables [Line Items] |  |  |  |
Non-related party | 3,642 | 145 |  |
Related party | 0 | 0 |  |
Other receivables | Loss allowance |  |  |  |
Trade And Other Receivables [Line Items] |  |  |  |
Less : Loss allowance | (5) | (5) | ₩ (5) | ₩ (5)
Other receivables | Loss allowance | Lifetime expected credit losses [member] |  |  |  |
Trade And Other Receivables [Line Items] |  |  |  |
Less : Loss allowance | ₩ (5) | ₩ (5) |  |

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- Definition The amount of current trade receivables. [Refer: Trade receivables] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 78 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_78_b&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 68 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_68&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of financial assets at amortised cost. The amortised cost is the amount at which financial assets are measured at initial recognition minus principal repayments, plus or minus the cumulative amortisation using the effective interest method of any difference between that initial amount and the maturity amount, and adjusted for any impairment. [Refer: Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph 8 -Subparagraph f -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_8_f&doctype=Standard -URIDate 2023-03-23 + Details
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