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Subsequent Events (Details) $ in Thousands, ₩ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 KRW (₩) | Dec. 31, 2020 USD ($)
Unsecured corporate bond (Global bond) |  |
Subsequent Events - Issuance of bonds [Line Items] |  |
company name | Korea Hydro & Nuclear Power Co., Ltd. |
Issue date | Apr. 27, 2021 |
Maturity | Apr. 27, 2026 |
Interest rate (%) | 1.25% | 1.25%
Amounts issued for the subsequent period | $ |  | $ 500,000
Corporate bond |  |
Subsequent Events - Issuance of bonds [Line Items] |  |
company name | Korea South-East Power Co., Ltd. |
Issue date | Jan. 26, 2021 |
Maturity | Jan. 26, 2031 |
Interest rate (%) | 1.90% | 1.90%
Amounts issued for the subsequent period | ₩ 180,000 |
Corporate bond |  |
Subsequent Events - Issuance of bonds [Line Items] |  |
company name | Korea South-East Power Co., Ltd. |
Issue date | Jan. 26, 2021 |
Maturity | Jan. 26, 2041 |
Interest rate (%) | 1.97% | 1.97%
Amounts issued for the subsequent period | ₩ 90,000 |
Corporate bond |  |
Subsequent Events - Issuance of bonds [Line Items] |  |
company name | Korea South-East Power Co., Ltd. |
Issue date | Jan. 26, 2021 |
Maturity | Jan. 26, 2051 |
Interest rate (%) | 1.96% | 1.96%
Amounts issued for the subsequent period | ₩ 30,000 |
Corporate bond |  |
Subsequent Events - Issuance of bonds [Line Items] |  |
company name | Korea South-East Power Co., Ltd. |
Issue date | Apr. 08, 2021 |
Maturity | Apr. 08, 2026 |
Interest rate (%) | 1.82% | 1.82%
Amounts issued for the subsequent period | ₩ 140,000 |
Corporate bond |  |
Subsequent Events - Issuance of bonds [Line Items] |  |
company name | Korea South-East Power Co., Ltd. |
Issue date | Apr. 08, 2021 |
Maturity | Apr. 08, 2028 |
Interest rate (%) | 1.99% | 1.99%
Amounts issued for the subsequent period | ₩ 50,000 |
Corporate bond |  |
Subsequent Events - Issuance of bonds [Line Items] |  |
company name | Korea Midland Power Co., Ltd. |
Issue date | Apr. 02, 2021 |
Maturity | Apr. 02, 2024 |
Interest rate (%) | 1.45% | 1.45%
Amounts issued for the subsequent period | ₩ 90,000 |
Corporate bond |  |
Subsequent Events - Issuance of bonds [Line Items] |  |
company name | Korea Midland Power Co., Ltd. |
Issue date | Apr. 21, 2021 |
Maturity | Apr. 21, 2026 |
Interest rate (%) | 1.85% | 1.85%
Amounts issued for the subsequent period | ₩ 190,000 |
Corporate bond |  |
Subsequent Events - Issuance of bonds [Line Items] |  |
company name | Korea Western Power Co., Ltd. |
Issue date | Apr. 29, 2021 |
Maturity | Apr. 29, 2024 |
Interest rate (%) | 1.39% | 1.39%
Amounts issued for the subsequent period | ₩ 60,000 |
Corporate bond |  |
Subsequent Events - Issuance of bonds [Line Items] |  |
company name | Korea Western Power Co., Ltd. |
Issue date | Apr. 29, 2021 |
Maturity | Apr. 29, 2026 |
Interest rate (%) | 1.87% | 1.87%
Amounts issued for the subsequent period | ₩ 150,000 |
Corporate bond |  |
Subsequent Events - Issuance of bonds [Line Items] |  |
company name | Korea Western Power Co., Ltd. |
Issue date | Apr. 29, 2021 |
Maturity | Apr. 29, 2031 |
Interest rate (%) | 2.18% | 2.18%
Amounts issued for the subsequent period | ₩ 20,000 |
Unsecured corporate bond (Global bond 21) |  |
Subsequent Events - Issuance of bonds [Line Items] |  |
company name | Korea Southern Power Co., Ltd. |
Issue date | Jan. 27, 2021 |
Maturity | Jan. 27, 2026 |
Interest rate (%) | 0.75% | 0.75%
Amounts issued for the subsequent period | $ |  | $ 450,000
Corporate bond |  |
Subsequent Events - Issuance of bonds [Line Items] |  |
company name | Korea Southern Power Co., Ltd. |
Issue date | Apr. 14, 2021 |
Maturity | Apr. 14, 2022 |
Interest rate (%) | 0.86% | 0.86%
Amounts issued for the subsequent period | ₩ 150,000 |
Corporate bond |  |
Subsequent Events - Issuance of bonds [Line Items] |  |
company name | Korea Southern Power Co., Ltd. |
Issue date | Apr. 14, 2021 |
Maturity | Apr. 14, 2023 |
Interest rate (%) | 1.14% | 1.14%
Amounts issued for the subsequent period | ₩ 70,000 |

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