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Investment Properties - Summary of Investment Properties and Changes in Investment Properties (Details) - KRW (₩) ₩ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Disclosure of detailed information about investment property [line items] |  |  |
Beginning balance | ₩ 208,286 | ₩ 212,784 |
Disposal | 0 | (208) |
Depreciation | (493) | (486) | ₩ (1,386)
Others | (22,266) | (3,804) |
Endings balance | 185,527 | 208,286 | 212,784
Acquisition cost |  |  |
Disclosure of detailed information about investment property [line items] |  |  |
Beginning balance | 214,658 |  |
Endings balance | 192,637 | 214,658 |
Accumulated depreciation |  |  |
Disclosure of detailed information about investment property [line items] |  |  |
Beginning balance | (6,351) |  |
Endings balance | (7,088) | (6,351) |
Government grants |  |  |
Disclosure of detailed information about investment property [line items] |  |  |
Beginning balance | (21) | (30) |
Disposal | 0 | 0 |
Depreciation | 1 | 1 |
Others | (2) | 8 |
Endings balance | (22) | (21) | (30)
Investment property - Land |  |  |
Disclosure of detailed information about investment property [line items] |  |  |
Beginning balance | 194,417 |  |
Endings balance | 172,594 | 194,417 |
Investment property - Land | Carrying Amount Other than Government Grants |  |  |
Disclosure of detailed information about investment property [line items] |  |  |
Beginning balance | 194,417 | 201,605 |
Disposal | 0 | (208) |
Depreciation | 0 | 0 |
Others | (21,823) | (6,980) |
Endings balance | 172,594 | 194,417 | 201,605
Investment property - Land | Acquisition cost |  |  |
Disclosure of detailed information about investment property [line items] |  |  |
Beginning balance | 194,417 |  |
Endings balance | 172,594 | 194,417 |
Investment property - Land | Accumulated depreciation |  |  |
Disclosure of detailed information about investment property [line items] |  |  |
Beginning balance | 0 |  |
Endings balance | 0 | 0 |
Investment property - Land | Government grants |  |  |
Disclosure of detailed information about investment property [line items] |  |  |
Beginning balance | 0 |  |
Endings balance | 0 | 0 |
Investment property - Buildings |  |  |
Disclosure of detailed information about investment property [line items] |  |  |
Beginning balance | 13,869 |  |
Endings balance | 12,933 | 13,869 |
Investment property - Buildings | Carrying Amount Other than Government Grants |  |  |
Disclosure of detailed information about investment property [line items] |  |  |
Beginning balance | 13,890 | 11,209 |
Disposal | 0 | 0 |
Depreciation | (494) | (487) |
Others | (441) | 3,168 |
Endings balance | 12,955 | 13,890 | ₩ 11,209
Investment property - Buildings | Acquisition cost |  |  |
Disclosure of detailed information about investment property [line items] |  |  |
Beginning balance | 20,241 |  |
Endings balance | 20,043 | 20,241 |
Investment property - Buildings | Accumulated depreciation |  |  |
Disclosure of detailed information about investment property [line items] |  |  |
Beginning balance | (6,351) |  |
Endings balance | (7,088) | (6,351) |
Investment property - Buildings | Government grants |  |  |
Disclosure of detailed information about investment property [line items] |  |  |
Beginning balance | (21) |  |
Endings balance | ₩ (22) | ₩ (21) |

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- Definition The amount of depreciation recognised on investment property. [Refer: Depreciation and amortisation expense; Investment property] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 40 -IssueDate 2023-01-01 -Paragraph 76 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=40&code=ifrs-tx-2023-en-r&anchor=para_76&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 40 -IssueDate 2023-01-01 -Paragraph 79 -Subparagraph d -Clause iv -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=40&code=ifrs-tx-2023-en-r&anchor=para_79_d_iv&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The decrease in investment property resulting from disposals. [Refer: Investment property] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 40 -IssueDate 2023-01-01 -Paragraph 76 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=40&code=ifrs-tx-2023-en-r&anchor=para_76_c&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 40 -IssueDate 2023-01-01 -Paragraph 79 -Subparagraph d -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=40&code=ifrs-tx-2023-en-r&anchor=para_79_d_iii&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of property (land or a building - or part of a building - or both) held (by the owner or by the lessee as a right-of-use asset) to earn rentals or for capital appreciation or both, rather than for: (a) use in the production or supply of goods or services or for administrative purposes; or (b) sale in the ordinary course of business. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 40 -IssueDate 2023-01-01 -Paragraph 76 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=40&code=ifrs-tx-2023-en-r&anchor=para_76&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 40 -IssueDate 2023-01-01 -Paragraph 79 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=40&code=ifrs-tx-2023-en-r&anchor=para_79_d&doctype=Standard -URIDate 2023-03-23 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 54 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_54_b&doctype=Standard -URIDate 2023-03-23 + Details
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