Income taxes (Details 6) - KRW (₩) ₩ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| IfrsStatementLineItems [Line Items] | ||
| Deferred tax assets | ₩ 2,672,086 | ₩ 1,572,071 |
| Deferred tax liabilities | (1,780,885) | (960,215) |
| Deferred tax assets (liabilities), net | 891,201 | 611,856 |
| Gross carrying amount [member] | Not later than one year [member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Deferred tax assets | 1,334,368 | 593,760 |
| Deferred tax liabilities | (1,469,704) | (939,073) |
| Gross carrying amount [member] | Later than one year [member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Deferred tax assets | 1,337,718 | 978,311 |
| Deferred tax liabilities | ₩ (311,181) | ₩ (21,142) |