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Capital (Tables) | 12 Months Ended
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Dec. 31, 2020
Disclosure Of Classes Of Share Capital [Abstract] |
Summary of Common Shares | Details of common shares as of December 31, 2020 and 2019 are as follows:
|  | December 31, 2020 |  |  | December 31, 2019 |
|  |  | (In Korean won and number of shares) |
Number of authorized shares |  |  |  | 40,000,000 |  |  |  |  | 40,000,000 |
Value per share |  | W |  | 500 |  |  | W |  | 500 |
Number of shares issued |  |  |  | 6,948,900 |  |  |  |  | 6,948,900 |
Common shares |  | W |  | 3,474,450,000 |  |  | W |  | 3,474,450,000 |
Summary of Capital Surplus | Details of capital surplus as of December 31, 2020 and 2019 are as follows:
|  | December 31, 2020 |  |  | December 31, 2019 |
|  |  | (In millions of Korean won) |
Additional paid in capital |  | W |  | 25,304 |  |  | W |  | 25,322 |
Other capital surplus |  |  |  | 1,806 |  |  |  |  | 1,806 |
Total |  | W |  | 27,110 |  |  | W |  | 27,128 |
Summary of Other Components of Equity | Details of other components of equity as of December 31, 2020 and 2019 are as follows:
|  | December 31, 2020 |  |  | December 31, 2019 |
|  |  | (In millions of Korean won) |
Foreign currency translation adjustments |  | W |  | (1,045 | ) |  | W |  | 275 |
Summary of Retained Earnings | Details of retained earnings as of December 31, 2020 and 2019 are as follows:
|  | December 31, 2020 |  |  | December 31, 2019 |
|  |  | (In millions of Korean won) |
Unappropriated retained earnings |  | W |  | 147,371 |  |  | W |  | 84,668 |

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- Definition The disclosure of classes of share capital. [Refer: Share capital [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 79 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_79_a&doctype=Standard -URIDate 2020-01-01 + Details
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