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Other Financial Assets and Liabilities - Summary of Derivative Financial Assets and Liabilities (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2019 | Dec. 31, 2018
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Disclosure of detailed information about financial instruments [line items] |  |
Assets, Total | ₩ 58,576 | ₩ 29,843
Less: Assets, non-current | (28,304) | (4,732)
Assets, Current | 30,272 | 25,111
Liabilities, Total | 20,096 | 57,308
Less: Liabilities, non-current | (19,177) | (56,366)
Liabilities, Current | 919 | 942
Interest rate swap [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Liabilities, Total | 1,464 | 599
Currency swap [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Assets, Total | 55,569 | 29,843
Liabilities, Total | 18,632 | 54,074
Currency forwards [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Assets, Total | ₩ 3,007 |
Liabilities, Total |  | ₩ 2,635

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- Definition The amount of current derivative financial liabilities. [Refer: Derivative financial liabilities] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_55&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The amount of financial assets classified as derivative instruments. [Refer: Financial assets; Derivatives [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_55&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The amount of financial liabilities classified as derivative instruments. [Refer: Financial assets; Derivatives [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_55&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The amount of non-current derivative financial assets. [Refer: Derivative financial assets] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_55&doctype=Standard -URIDate 2019-03-27 + Details
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