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Commitments and Contingencies - Summary of Major Commitments with Local Financial Institutions (Detail) - Dec. 31, 2017 $ in Thousands, ₩ in Millions | KRW (₩) | USD ($)
--- | --- | ---
Disclosure of detailed information about borrowings [Line Items] |  |
Limit | ₩ 2,881,232 | $ 253,500
Used amount | 563,022 | 181,108
Bank overdraft [Member] | Kookmin Bank and others [Member] |  |
Disclosure of detailed information about borrowings [Line Items] |  |
Limit | 1,730,000 |
Used amount | 72 |
Commercial papers [member] | NH Investment & Security Co., Ltd. [member] |  |
Disclosure of detailed information about borrowings [Line Items] |  |
Limit | 370,000 |
Used amount | 300,000 |
Collateralized loan on accounts receivable-trade [Member] | NongHyup Bank [member] |  |
Disclosure of detailed information about borrowings [Line Items] |  |
Limit | 35,560 |
Collateralised loans on electronic receivable-trade [Member] | Shinhan Bank and others [Member] |  |
Disclosure of detailed information about borrowings [Line Items] |  |
Limit | 343,000 |
Used amount | 42,350 |
Plus electronic notes payable [Member] | Industrial Bank of Korea [Member] |  |
Disclosure of detailed information about borrowings [Line Items] |  |
Limit | 50,000 |
Used amount | 140 |
Loans for working capital [Member] | Korea Development Bank and others [Member] |  |
Disclosure of detailed information about borrowings [Line Items] |  |
Limit | 306,500 |
Used amount | 207,300 |
Green energy factoring [Member] | Shinhan Bank [Member] |  |
Disclosure of detailed information about borrowings [Line Items] |  |
Limit | 16 |
Used amount | 16 |
FX forward trading commitment [Member] | Shinhan Bank [Member] |  |
Disclosure of detailed information about borrowings [Line Items] |  |
Limit | $ |  | 11,500
Used amount | $ |  | 0
Facility loans [Member] | Kookmin Bank and others [Member] |  |
Disclosure of detailed information about borrowings [Line Items] |  |
Limit | 8,456 | 212,000
Used amount | 8,456 | 166,108
Facility loans on ships [Member] | Shinhan Bank [Member] |  |
Disclosure of detailed information about borrowings [Line Items] |  |
Limit | $ |  | 30,000
Used amount | $ |  | $ 15,000
Inter-Korean Cooperation Fund [Member] | Export-Import Bank of Korea [Member] |  |
Disclosure of detailed information about borrowings [Line Items] |  |
Limit | 37,700 |
Used amount | ₩ 4,688 |

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