Provisions - Summary Of Changes In Asset Retirement Obligation (Details) $ in Thousands, ₩ in Millions |
12 Months Ended | |||
|---|---|---|---|---|
|
Dec. 31, 2025
KRW (₩)
|
Dec. 31, 2025
USD ($)
|
Dec. 31, 2024
KRW (₩)
|
Dec. 31, 2023
KRW (₩)
|
|
| Reconciliation of changes in provision for decommissioning restoration and rehabilitation costs [Abstract] | ||||
| Beginning balance | ₩ 611,428 | |||
| Changes in provision for decommissioning restoration and rehabilitation costs [Abstract] | ||||
| Ending balance | 790,733 | $ 547,391 | ₩ 611,428 | |
| Asset retirement obligation | ||||
| Reconciliation of changes in provision for decommissioning restoration and rehabilitation costs [Abstract] | ||||
| Beginning balance | 97,772 | 95,179 | ₩ 82,717 | |
| Changes in provision for decommissioning restoration and rehabilitation costs [Abstract] | ||||
| Provisions provided | 4,700 | 5,790 | 6,979 | |
| Provisions used | (8,447) | (5,467) | (1,542) | |
| Reversal of provisions unused | (314) | (957) | (1,202) | |
| Amortization | 1,551 | 2,412 | ||
| Changes due to business combinations | 4,512 | 218 | 0 | |
| Increase of restoration expense, etc. | 7,105 | 1,458 | 5,815 | |
| Ending balance | ₩ 106,786 | ₩ 97,772 | ₩ 95,179 | |
| Description of expected timing of outflows, other provisions | The amount of the asset retirement obligation is the present value of the best estimate of future expected expenditure to settle the obligation – arising from leased property as of December 31, 2025, discounted byappropriate discount rate. The restoration cost is expected to occur by the end of each property’s lease period, and the Group has used average lease period for each category of leases terminated during the past years in order to rationally estimate the lease period. | The amount of the asset retirement obligation is the present value of the best estimate of future expected expenditure to settle the obligation – arising from leased property as of December 31, 2025, discounted byappropriate discount rate. The restoration cost is expected to occur by the end of each property’s lease period, and the Group has used average lease period for each category of leases terminated during the past years in order to rationally estimate the lease period. | ||
| Description of major assumptions made concerning future events, other provisions | In addition, the Group used average amount of actual recovery cost for the past 3 years and the inflation rate for last year in order to estimate future recovery cost. | In addition, the Group used average amount of actual recovery cost for the past 3 years and the inflation rate for last year in order to estimate future recovery cost. | ||