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Financial Risk Management - Summary of Maximum Exposure to Credit Risk (Details) - KRW (₩) ₩ in Millions | Dec. 31, 2020 | Dec. 31, 2019
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Disclosure Of Credit Risk Exposure [Line Items] |  |
Maximum exposure to credit risk | ₩ 243,543 | ₩ 153,240
Cash and Cash Equivalents |  |
Disclosure Of Credit Risk Exposure [Line Items] |  |
Maximum exposure to credit risk | 110,632 | 79,428
Short Term Financial Instruments |  |
Disclosure Of Credit Risk Exposure [Line Items] |  |
Maximum exposure to credit risk | 71,000 | 39,500
Accounts Receivables |  |
Disclosure Of Credit Risk Exposure [Line Items] |  |
Maximum exposure to credit risk | 59,761 | 32,253
Other Receivables |  |
Disclosure Of Credit Risk Exposure [Line Items] |  |
Maximum exposure to credit risk | 8 | 56
Other Current Financial Assets |  |
Disclosure Of Credit Risk Exposure [Line Items] |  |
Maximum exposure to credit risk | 818 | 233
Other Non-current Financial Assets |  |
Disclosure Of Credit Risk Exposure [Line Items] |  |
Maximum exposure to credit risk | ₩ 1,324 | ₩ 1,770

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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 that best represents the maximum exposure to credit risk without taking into account any collateral held or other credit enhancements (for example, netting agreements that do not qualify for offset in accordance with IAS 32). [Refer: Credit risk [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2020-01-01 -Paragraph 35K -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2020-en-r&anchor=para_35K_a&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2021-01-01 -Name IFRS -Number 7 -IssueDate 2020-01-01 -Paragraph 36 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_36_a&doctype=Standard&book=b -URIDate 2020-01-01 + Details
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