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Events after Reporting Period (Tables) | 12 Months Ended
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Dec. 31, 2017
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Summary of Public Bonds Issued After Reporting Period | Subsequent to the reporting period, public bonds issued are as follow:
|  | December 31, 2017 |
(in millions of Korean won) |  | Issue date |  |  | Carrying amount |  |  | Interest rate |  |  | Redemption date |
The 190-1st Public bond |  |  | 2018.01.30 |  |  |  | 110,000 |  |  |  | 2.55 | % |  |  | 2021.01.29 |
The 190-2nd Public bond |  |  | 2018.01.30 |  |  |  | 150,000 |  |  |  | 2.75 | % |  |  | 2023.01.30 |
The 190-3rd Public bond |  |  | 2018.01.30 |  |  |  | 170,000 |  |  |  | 2.95 | % |  |  | 2028.01.30 |
The 190-4th Public bond |  |  | 2018.01.30 |  |  |  | 70,000 |  |  |  | 2.93 | % |  |  | 2038.01.30 |

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- Definition Disclosure of public bonds issued after reporting period. + References No definition available. + Details
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- Definition Text block1 [abstract] + References No definition available. + Details
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