v3.26.1
Loss per share - Schedule of Basic and Diluted Loss Per Share (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Basic earnings (loss) per share:        
Net income (loss) attributable to WEBTOON Entertainment Inc. $ (15,248) $ (4,326) $ (24,703) $ (26,715)
Add: allocation to subsidiary / equity method investee participating security (39) (38) (146) (125)
Net income (loss) attributable to WEBTOON Entertainment Inc. common shareholders $ (15,287) $ (4,364) $ (24,849) $ (26,840)
Shares used in computation:        
Weighted-average common shares outstanding (in shares) 135,250,711 130,358,706 134,439,157 129,980,922
Basic earnings (loss) per share (in usd per share) $ (0.11) $ (0.03) $ (0.18) $ (0.21)
Diluted earnings (loss) per share:        
Net income (loss) attributable to WEBTOON Entertainment Inc. common shareholders $ (15,287) $ (4,364) $ (24,849) $ (26,840)
Subsidiary and equity method investee earnings adjustment for dilutive securities 0 (3) 0 (7)
Diluted net income (loss) attributable to WEBTOON Entertainment Inc. common shareholders $ (15,287) $ (4,367) $ (24,849) $ (26,847)
Shares used in computation:        
Weighted-average common shares outstanding (in shares) 135,250,711 130,358,706 134,439,157 129,980,922
Diluted weighted-average common shares outstanding (in shares) 135,250,711 130,358,706 134,439,157 129,980,922
Diluted earnings (loss) per share (in usd per share) $ (0.11) $ (0.03) $ (0.18) $ (0.21)
Stock options and unvested RSUs        
Shares used in computation:        
Dilutive effect of stock options and unvested RSUs and PSUs (in shares) 0 0 0 0
Unvested PSUs        
Shares used in computation:        
Dilutive effect of stock options and unvested RSUs and PSUs (in shares) 0 0 0 0