Investments in Associates and Joint Ventures - Market Price of Investments in Listed Associates (Detail) ₩ / shares in Units, ₩ in Millions |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2025
KRW (₩)
₩ / shares
shares
|
Dec. 31, 2024
KRW (₩)
₩ / shares
shares
|
Dec. 31, 2024
$ / shares
|
|
| SM. Culture & Contents Co., Ltd [member] | |||
| Disclosure of associates [Line Items] | |||
| Market price per share | ₩ / shares | ₩ 1,330 | ₩ 1,400 | |
| Number of shares | shares | 22,033,898 | 22,033,898 | |
| Market value | ₩ | ₩ 29,305 | ₩ 30,847 | |
| Konan Technology Inc. [member] | |||
| Disclosure of associates [Line Items] | |||
| Market price per share | ₩ / shares | ₩ 19,710 | ₩ 19,470 | |
| Number of shares | shares | 2,359,160 | 2,359,160 | |
| Market value | ₩ | ₩ 46,499 | ₩ 45,933 | |
| CMES Inc. [member] | |||
| Disclosure of associates [Line Items] | |||
| Market price per share | (per share) | ₩ 33,100 | $ 24,000 | |
| Number of shares | shares | 763,968 | 763,968 | |
| Market value | ₩ | ₩ 25,287 | ₩ 18,335 | |