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Financial Risk Management - Summary of Financial Liabilities by Maturity (Details) - KRW (₩) ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019
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Disclosure Of Maturity Analysis For Financial Assets Held For Managing Liquidity Risk [Line Items] |  |
Other payable | ₩ 60,547 | ₩ 44,352
Accounts Payable |  |
Disclosure Of Maturity Analysis For Financial Assets Held For Managing Liquidity Risk [Line Items] |  |
Other payable | 54,090 | 37,689
Accrued Expenses |  |
Disclosure Of Maturity Analysis For Financial Assets Held For Managing Liquidity Risk [Line Items] |  |
Other payable | 62 | 1,175
Other Liabilities |  |
Disclosure Of Maturity Analysis For Financial Assets Held For Managing Liquidity Risk [Line Items] |  |
Other payable | 6,395 | 5,488
Less Than Three months |  |
Disclosure Of Maturity Analysis For Financial Assets Held For Managing Liquidity Risk [Line Items] |  |
Other payable | 44,312 | 23,147
Less Than Three months | Accounts Payable |  |
Disclosure Of Maturity Analysis For Financial Assets Held For Managing Liquidity Risk [Line Items] |  |
Other payable | 43,438 | 21,374
Less Than Three months | Accrued Expenses |  |
Disclosure Of Maturity Analysis For Financial Assets Held For Managing Liquidity Risk [Line Items] |  |
Other payable | 62 | 1,175
Less Than Three months | Other Liabilities |  |
Disclosure Of Maturity Analysis For Financial Assets Held For Managing Liquidity Risk [Line Items] |  |
Other payable | 812 | 598
Carrying amount [member] |  |
Disclosure Of Maturity Analysis For Financial Assets Held For Managing Liquidity Risk [Line Items] |  |
Other payable | 60,052 | 43,858
Carrying amount [member] | Accounts Payable |  |
Disclosure Of Maturity Analysis For Financial Assets Held For Managing Liquidity Risk [Line Items] |  |
Other payable | 54,090 | 37,689
Carrying amount [member] | Accrued Expenses |  |
Disclosure Of Maturity Analysis For Financial Assets Held For Managing Liquidity Risk [Line Items] |  |
Other payable | 62 | 1,175
Carrying amount [member] | Other Liabilities |  |
Disclosure Of Maturity Analysis For Financial Assets Held For Managing Liquidity Risk [Line Items] |  |
Other payable | 5,900 | 4,994
Three Months to One Year |  |
Disclosure Of Maturity Analysis For Financial Assets Held For Managing Liquidity Risk [Line Items] |  |
Other payable | 11,357 | 17,775
Three Months to One Year | Accounts Payable |  |
Disclosure Of Maturity Analysis For Financial Assets Held For Managing Liquidity Risk [Line Items] |  |
Other payable | 9,250 | 16,122
Three Months to One Year | Other Liabilities |  |
Disclosure Of Maturity Analysis For Financial Assets Held For Managing Liquidity Risk [Line Items] |  |
Other payable | 2,107 | 1,653
One Year to Two Year |  |
Disclosure Of Maturity Analysis For Financial Assets Held For Managing Liquidity Risk [Line Items] |  |
Other payable | 3,548 | 1,973
One Year to Two Year | Accounts Payable |  |
Disclosure Of Maturity Analysis For Financial Assets Held For Managing Liquidity Risk [Line Items] |  |
Other payable | 1,402 | 193
One Year to Two Year | Other Liabilities |  |
Disclosure Of Maturity Analysis For Financial Assets Held For Managing Liquidity Risk [Line Items] |  |
Other payable | 2,146 | 1,780
Two Year to Three Year |  |
Disclosure Of Maturity Analysis For Financial Assets Held For Managing Liquidity Risk [Line Items] |  |
Other payable | 597 | 1,029
Two Year to Three Year | Other Liabilities |  |
Disclosure Of Maturity Analysis For Financial Assets Held For Managing Liquidity Risk [Line Items] |  |
Other payable | 597 | 1,029
Three Year to Five Year |  |
Disclosure Of Maturity Analysis For Financial Assets Held For Managing Liquidity Risk [Line Items] |  |
Other payable | 733 | 428
Three Year to Five Year | Other Liabilities |  |
Disclosure Of Maturity Analysis For Financial Assets Held For Managing Liquidity Risk [Line Items] |  |
Other payable | ₩ 733 | ₩ 428

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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- Definition The amount of financial assets held for managing liquidity risk (for example, financial assets that are readily saleable or expected to generate cash inflows to meet cash outflows on financial liabilities). [Refer: Liquidity risk [member]; Financial assets; Financial liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2020-01-01 -Paragraph B11E -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2020-en-r&anchor=para_B11E&doctype=Appendix&subtype=B -URIDate 2020-01-01 + Details
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