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Borrowings and Debt Securities : Short-term borrowings (Details) ₱ in Thousands, $ in Thousands, $ in Thousands, ₩ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2018 KRW (₩) | Dec. 31, 2017 KRW (₩) | Dec. 31, 2018 USD ($) | Dec. 31, 2018 PHP (₱) | Dec. 31, 2017 USD ($) | Dec. 31, 2017 AUD ($)
Disclosure of detailed information about Short-term borrowings [Line Items] |  |  |  |  |  |
Short-term borrowings | ₩ 860,602 | ₩ 1,038,328 |  |  |  |
Local short-term borrowings |  |  |  |  |  |
Disclosure of detailed information about Short-term borrowings [Line Items] |  |  |  |  |  |
Name of Creditor | KTB Investment and securities and others | KTB Investment and securities and others |  |  |  |
Borrowings interest rate | 2.05~2.51 | 1.57~2.47 |  |  |  |
Borrowings, maturity | 2019.01.04~ 2019.02.20 | 2018.01.12~ 2018.09.19 |  |  |  |
Short-term borrowings | ₩ 674,000 | ₩ 686,561 |  |  |  |
Foreign short-term borrowings |  |  |  |  |  |
Disclosure of detailed information about Short-term borrowings [Line Items] |  |  |  |  |  |
Name of Creditor | SCNT and others | SCNT and others |  |  |  |
Borrowings interest rate | 4.60~6.50 | 4.60~6.50 |  |  |  |
Borrowings, maturity | 2019.12.03 | 2018.12.03 |  |  |  |
Short-term borrowings | ₩ 10,013 | ₩ 9,594 | $ 8,955 |  | $ 8,955 |
Foreign short-term borrowings |  |  |  |  |  |
Disclosure of detailed information about Short-term borrowings [Line Items] |  |  |  |  |  |
Name of Creditor | BDO Unibank | Export-import Bank of Korea |  |  |  |
Borrowings interest rate | 6.59 | 3M Libor+0.41~0.63 |  |  |  |
Borrowings, maturity | 2020.12.17 (*) The contractual maturity is 2020 but is classified as short-term borrowing due to intention of early payment in 3 months after borrowing. | 2018.12.18 |  |  |  |
Short-term borrowings | ₩ 9,581 | ₩ 273,314 |  | ₱ 450,000 |  | $ 327,259
Local bank overdraft |  |  |  |  |  |
Disclosure of detailed information about Short-term borrowings [Line Items] |  |  |  |  |  |
Name of Creditor | Nonghyup Bank | Nonghyup Bank |  |  |  |
Borrowings interest rate | 2.59~3.09 | 3.04 |  |  |  |
Borrowings, maturity | 2019.01.10~ 2019.12.31 | 2018.01.02 |  |  |  |
Short-term borrowings | ₩ 142,773 | ₩ 51,300 |  |  |  |
Local bank overdraft |  |  |  |  |  |
Disclosure of detailed information about Short-term borrowings [Line Items] |  |  |  |  |  |
Name of Creditor | Woori Bank | Woori Bank |  |  |  |
Borrowings interest rate | Standard overdraft rate+1.09 | Standard overdraft rate+1.12 |  |  |  |
Borrowings, maturity | 2019.02.26 | 2018.02.27 |  |  |  |
Short-term borrowings | ₩ 24,235 | ₩ 17,559 |  |  |  |

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