Investment properties - Details of investment properties (Details) $ in Thousands, ₩ in Millions |
12 Months Ended | ||||
|---|---|---|---|---|---|
|
Dec. 31, 2025
KRW (₩)
|
Dec. 31, 2024
KRW (₩)
|
Dec. 31, 2025
USD ($)
|
Dec. 31, 2023
KRW (₩)
|
Dec. 31, 2022
KRW (₩)
|
|
| Disclosure of detailed information about investment property [line items] | |||||
| Net carrying value | ₩ 998,854 | ₩ 450,788 | $ 691,464 | ₩ 472,768 | ₩ 387,707 |
| Fair value of investment properties | ₩ 1,364,950 | ₩ 795,216 | |||
| Description of extent to which fair value of investment property is based on valuation by independent valuer | The fair value of investment properties has been assessed on the basis of recent similar real estate market price and officially assessed land price in the area of the investment properties | The fair value of investment properties has been assessed on the basis of recent similar real estate market price and officially assessed land price in the area of the investment properties | |||
| Description of investment property of level of fair value hierarchy within which fair value measurement is categorised | The fair value of investment property is classified as level 3 on the fair value hierarchy | The fair value of investment property is classified as level 3 on the fair value hierarchy | |||
| Acquisition cost | |||||
| Disclosure of detailed information about investment property [line items] | |||||
| Net carrying value | ₩ 1,050,044 | ₩ 497,787 | |||
| Accumulated depreciation | |||||
| Disclosure of detailed information about investment property [line items] | |||||
| Net carrying value | (50,742) | (46,913) | |||
| Accumulated impairment losses | |||||
| Disclosure of detailed information about investment property [line items] | |||||
| Net carrying value | ₩ (448) | ₩ (86) | |||