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Borrowings - Summary of Long-term Borrowings (Parenthetical) (Detail) - ₩ / shares | 12 Months Ended |
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Dec. 31, 2019 | Dec. 31, 2010
Inter-Korean Cooperation Fund [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Long term debt repayment | The above Inter-Korean Cooperation Fund is repayable in installments over 13 years after a seven-year grace period. |
Vessel facility loans [member] | Shinhan Bank [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
LIBOR rate | 1.908% |
Vessel facility loans [member] | Kookmin Bank [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
LIBOR rate | 1.908% |
Redeemable convertible preferred stock [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Shares issued |  | 1,900,000
Par value per share |  | ₩ 500

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- Definition The adjustment to the basis (reference rate) used for calculation of the interest rate on borrowings. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 7 -IssueDate 2019-01-01 -Paragraph 7 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2019-en-r&anchor=para_7&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The number of shares issued by the entity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 106 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_106_d&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The nominal value per share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 79 -Subparagraph a -Clause iii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_79_a_iii&doctype=Standard -URIDate 2019-03-27 + Details
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- Details
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- Details
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- Details
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