v3.26.3
Financial Instruments - Fair values and risk management (Details 1) - CubeBio Co., Ltd. [Member] - KRW (₩)
₩ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Dec. 31, 2024
Early redemption rights [Member] | Profit or loss [Member]      
IfrsStatementLineItems [Line Items]      
Favorable changes ₩ 27,311 [1],[2] ₩ 43,698 [2],[3],[4] ₩ 62,935 [3]
Unfavorable changes (26,418) [1],[2] (41,087) [2],[3],[4] (60,750) [3]
Early redemption rights [Member] | Other comprehensive income or loss [Member]      
IfrsStatementLineItems [Line Items]      
Favorable changes [1],[2] [2],[3],[4] [3]
Unfavorable changes [1],[2] [2],[3],[4] [3]
Level 3 of fair value hierarchy [member] | Bottom of range [member]      
IfrsStatementLineItems [Line Items]      
Risk-adjusted discount 15.23% 12.60% 14.43%
Level 3 of fair value hierarchy [member] | Top of range [member]      
IfrsStatementLineItems [Line Items]      
Risk-adjusted discount 22.17% 19.80% 20.17%
[1] For early redemption rights, changes in fair value are calculated by shifting principal unobservable input parameters such as correlation between risk-adjusted discount rates (-1%p~1%p).
[2] For early redemption rights, changes in fair value are calculated by shifting principal unobservable input parameters such as correlation between risk-adjusted discount rates (-1%p~1%p).
[3] For early redemption rights, changes in fair value are calculated by shifting principal unobservable input parameters such as correlation between risk free discount rates (-1%p~1%p).
[4] For early redemption rights, changes in fair value are calculated by shifting principal unobservable input parameters such as correlation between risk free discount rates (-1%p~1%p).