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Intangible Assets - Summary of Changes In Intangible Assets (Details) - KRW (₩) ₩ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Disclosure Of Intangible Assets [Line Items] |  |  |
Intangible assets at beginning balance | ₩ 1,717 | ₩ 1,163 | ₩ 1,036
Acquisitions/Capital expenditure | 2,896 | 1,514 | 1,617
Amortization | (1,137) | (905) | (868)
Disposals |  | (20) |
Impairment | (115) | (52) | (623)
Foreign exchange differences | 2 | 17 | 1
Intangible assets at ending balance | 3,363 | 1,717 | 1,163
Software |  |  |
Disclosure Of Intangible Assets [Line Items] |  |  |
Intangible assets at beginning balance | 1,144 | 991 | 64
Acquisitions/Capital expenditure | 1,986 | 951 | 1,523
Amortization | (897) | (807) | (597)
Disposals |  | (8) |
Foreign exchange differences | 1 | 17 | 1
Intangible assets at ending balance | 2,234 | 1,144 | 991
License |  |  |
Disclosure Of Intangible Assets [Line Items] |  |  |
Intangible assets at beginning balance |  | 57 | 843
Acquisitions/Capital expenditure |  |  | 78
Amortization |  | (5) | (241)
Impairment |  | (52) | (623)
Intangible assets at ending balance |  |  | 57
Industrial Property Rights |  |  |
Disclosure Of Intangible Assets [Line Items] |  |  |
Intangible assets at beginning balance | 186 | 72 | 77
Acquisitions/Capital expenditure | 185 | 153 | 16
Amortization | (39) | (27) | (21)
Disposals |  | (12) |
Intangible assets at ending balance | 332 | 186 | 72
Other Intangible Assets |  |  |
Disclosure Of Intangible Assets [Line Items] |  |  |
Intangible assets at beginning balance | 387 | 43 | 52
Acquisitions/Capital expenditure | 725 | 410 |
Amortization | (201) | (66) | (9)
Impairment | (115) |  |
Foreign exchange differences | 1 |  |
Intangible assets at ending balance | ₩ 797 | ₩ 387 | ₩ 43

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- Definition The amount of additions to intangible assets other than goodwill, other than those acquired through business combinations. [Refer: Business combinations [member]; Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2020-01-01 -Paragraph 118 -Subparagraph e -Clause i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2020-en-r&anchor=para_118_e_i&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The amount of amortisation of intangible assets other than goodwill. [Refer: Depreciation and amortisation expense; Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2020-01-01 -Paragraph 118 -Subparagraph e -Clause vi -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2020-en-r&anchor=para_118_e_vi&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The decrease in intangible assets other than goodwill resulting from disposals. [Refer: Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2020-01-01 -Paragraph 118 -Subparagraph e -Clause ii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2020-en-r&anchor=para_118_e_ii&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The increase (decrease) in intangible assets other than goodwill resulting from net exchange differences arising on the translation of the financial statements from the functional currency into a different presentation currency, including the translation of a foreign operation into the presentation currency of the reporting entity. [Refer: Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2020-01-01 -Paragraph 118 -Subparagraph e -Clause vii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2020-en-r&anchor=para_118_e_vii&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The amount of identifiable non-monetary assets without physical substance. This amount does not include goodwill. [Refer: Goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2020-01-01 -Paragraph 118 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2020-en-r&anchor=para_118_e&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 54 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_54_c&doctype=Standard -URIDate 2020-01-01 + Details
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