Accounts and Other Receivables - Summary of Changes in Loss Allowance of Accounts and Other Receivables (Details) - Loss allowance - KRW (₩) ₩ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
|
| Accounts receivable | |||
| Trade And Other Receivables [Line Items] | |||
| Financial assets at amortised cost beginning balance | ₩ 626 | ₩ 319 | ₩ 689 |
| Bad debt expenses | 589 | 1,402 | 701 |
| Reversal of allowance for doubtful accounts | 0 | 0 | 0 |
| Write-off | (665) | (1,095) | (1,071) |
| Financial assets at amortised cost ending balance | 550 | 626 | 319 |
| Other receivables | |||
| Trade And Other Receivables [Line Items] | |||
| Financial assets at amortised cost beginning balance | 5 | 5 | 5 |
| Bad debt expenses | 0 | 0 | 0 |
| Reversal of allowance for doubtful accounts | 0 | 0 | 0 |
| Write-off | 0 | 0 | 0 |
| Financial assets at amortised cost ending balance | ₩ 5 | ₩ 5 | ₩ 5 |