v3.26.3
Earnings Per Share - Schedule of Denominator and Numerator used to Compute Basic and Diluted EPS (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
Numerator for Basic and Diluted EPS:        
Net income attributable to Parsons Corporation $ 54,153 $ 64,123 $ 91,860 $ 185,556
Convertible senior notes if-converted method interest adjustment 0 27 0 135
Diluted net income attributable to Parsons Corporation $ 54,153 $ 64,150 $ 91,860 $ 185,691
Denominator for Basic and Diluted EPS:        
Basic weighted average number of shares outstanding 105,966 106,763 106,710 106,864
Dilutive effect of stock-based awards 789 1,395 855 1,400
Dilutive effect of warrants 0 289 9 245
Dilutive effect of convertible senior notes due 2025 0 631 0 1,547
Diluted weighted average number of shares outstanding 106,755 109,078 107,574 110,056
Earnings per share:        
Basic $ 0.51 $ 0.6 $ 0.86 $ 1.74
Diluted $ 0.51 $ 0.59 $ 0.85 $ 1.69