v3.26.3
Net Income per Share - Summary of Computation of Basic and Diluted Net Income Per Share (Detail) - 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:        
Net income attributable to Vicor Corporation $ 63,321 $ 28,292 $ 133,757 $ 72,023
Denominator:        
Denominator for basic net income per share - weighted average shares [1] 46,129 44,734 45,845 44,986
Effect of dilutive securities:        
Employee stock options [2] 1,480 196 1,679 181
Denominator for diluted net income per share - adjusted weighted-average shares and assumed conversions 47,609 44,930 47,524 45,167
Basic net income per share $ 1.37 $ 0.63 $ 2.92 $ 1.6
Diluted net income per share $ 1.33 $ 0.63 $ 2.81 $ 1.59
[1] Denominator represents the weighted average number of shares of Common Stock and Class B Common Stock outstanding.
[2] Options to purchase 184,592 and 103,609 shares of Common Stock for the three and nine months ended September 30, 2026, respectively, were not included in the calculation of net income per share as the effect would have been antidilutive. Options to purchase 1,733,948 and 1,500,723 shares of Common Stock for each of the three and nine months ended September 30, 2025, respectively, were not included in the calculation of net income per share as the effect would have been antidilutive.