v3.26.3
Earnings Per Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Earnings:        
Net income $ 58,391 $ 48,400 $ 138,623 $ 43,102
Less: Allocation to participating securities, Basic 0 0 0 3
Less: Allocation to participating securities, Diluted 0 0 0 3
Net income attributable to Sotera Health Company common shareholders, Basic 58,391 48,400 138,623 43,099
Net income attributable to Sotera Health Company common shareholders, Diluted $ 58,391 $ 48,400 $ 138,623 $ 43,099
Weighted Average Common Shares:        
Weighted-average common shares outstanding - basic (in shares) 285,997 284,067 285,557 283,855
Dilutive effect of potential common shares (in shares) 3,220 2,678 2,714 2,164
Weighted-average common shares outstanding - diluted (in shares) 289,217 286,745 288,271 286,019
Earnings per Common Share:        
Net income per common share attributable to Sotera Health Company common shareholders - basic (in dollars per share) $ 0.20 $ 0.17 $ 0.49 $ 0.15
Net income per common share attributable to Sotera Health Company common shareholders - diluted (in dollars per share) $ 0.20 $ 0.17 $ 0.48 $ 0.15
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Antidilutive securities excluded from computation of earnings per share (in shares) 2,967 5,544 4,123 6,082
Stock options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Antidilutive securities excluded from computation of earnings per share (in shares) 2,956 5,543 3,973 5,570
RSUs        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Antidilutive securities excluded from computation of earnings per share (in shares) 11 1 150 512