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Property and Equipment - Summary of Change in Property and Equipment (Details) - KRW (₩) ₩ in Millions | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Disclosure Of Property Plant And Equipment [Line Items] |  |  |
Property, plant and equipment beginning balance | ₩ 6,663 | ₩ 1,498 | ₩ 946
Recognition of right-of-use assets on initial application of IFRS 16 |  | 4,254 |
Acquisitions/Capital expenditure | 4,855 | 3,722 | 1,141
Depreciation | (3,783) | (2,748) | (545)
Disposals | (17) | (75) | (59)
Foreign exchange differences | (23) | 12 | 15
Property, plant and equipment ending balance | 7,695 | 6,663 | 1,498
Right-of-use Assets |  |  |
Disclosure Of Property Plant And Equipment [Line Items] |  |  |
Property, plant and equipment beginning balance | 4,946 |  |
Recognition of right-of-use assets on initial application of IFRS 16 |  | 4,453 |
Acquisitions/Capital expenditure | 3,784 | 2,637 |
Depreciation | (2,957) | (2,135) |
Disposals | (13) | (15) |
Foreign exchange differences | (23) | 6 |
Property, plant and equipment ending balance | 5,737 | 4,946 |
Computer and Other Equipment |  |  |
Disclosure Of Property Plant And Equipment [Line Items] |  |  |
Property, plant and equipment beginning balance | 1,057 | 888 | 654
Recognition of right-of-use assets on initial application of IFRS 16 |  | (199) |
Acquisitions/Capital expenditure | 850 | 711 | 550
Depreciation | (529) | (344) | (297)
Disposals | (1) |  | (32)
Foreign exchange differences | 3 | 1 | 13
Property, plant and equipment ending balance | 1,380 | 1,057 | 888
Furniture and Fixtures |  |  |
Disclosure Of Property Plant And Equipment [Line Items] |  |  |
Property, plant and equipment beginning balance | 443 | 484 | 165
Acquisitions/Capital expenditure | 81 | 211 | 472
Depreciation | (213) | (198) | (133)
Disposals | (1) | (58) | (22)
Foreign exchange differences |  | 4 | 2
Property, plant and equipment ending balance | 310 | 443 | 484
Construction in Progress |  |  |
Disclosure Of Property Plant And Equipment [Line Items] |  |  |
Acquisitions/Capital expenditure | 128 |  |
Property, plant and equipment ending balance | 128 |  |
Vehicles |  |  |
Disclosure Of Property Plant And Equipment [Line Items] |  |  |
Acquisitions/Capital expenditure | 9 |  |
Depreciation | (1) |  |
Property, plant and equipment ending balance | 8 |  |
Leasehold Improvements |  |  |
Disclosure Of Property Plant And Equipment [Line Items] |  |  |
Property, plant and equipment beginning balance | 217 | 126 | 127
Acquisitions/Capital expenditure | 3 | 163 | 119
Depreciation | (83) | (71) | (115)
Disposals | (2) | (2) | (5)
Foreign exchange differences | (3) | 1 |
Property, plant and equipment ending balance | ₩ 132 | ₩ 217 | ₩ 126

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- Definition Recognition of right-of-use assets on initial application of IFRS 16. + References No definition available. + Details
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- Definition The amount of additions to property, plant and equipment other than those acquired through business combinations. [Refer: Business combinations [member]; Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2020-01-01 -Paragraph 73 -Subparagraph e -Clause i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2020-en-r&anchor=para_73_e_i&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The amount of depreciation of property, plant and equipment. [Refer: Depreciation and amortisation expense; Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2020-01-01 -Paragraph 73 -Subparagraph e -Clause vii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2020-en-r&anchor=para_73_e_vii&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2020-01-01 -Paragraph 75 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2020-en-r&anchor=para_75_a&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The decrease in property, plant and equipment resulting from disposals. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2020-01-01 -Paragraph 73 -Subparagraph e -Clause ii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2020-en-r&anchor=para_73_e_ii&doctype=Standard -URIDate 2020-01-01 + Details
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