Income Tax Expense - Unused Tax Loss Carryforwards Which are Not Recognized as Deferred Tax Assets (Detail) - KRW (₩) ₩ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | ||
| Unused tax loss carryforwards | ₩ 99,525 | ₩ 126,553 |
| Less than 1 year [member] | ||
| Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | ||
| Unused tax loss carryforwards | 0 | |
| 1 ~ 2 years [Member] | ||
| Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | ||
| Unused tax loss carryforwards | 0 | |
| 2 ~ 3 years [Member] | ||
| Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | ||
| Unused tax loss carryforwards | 0 | |
| More than 3 years [Member] | ||
| Disclosure of temporary difference, unused tax losses and unused tax credits [Line Items] | ||
| Unused tax loss carryforwards | ₩ 99,525 |