Net (Loss) Income per Share - Summary of Computation Of Basic And Diluted Net Income (Loss) Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Numerator:
Net (loss) income attributable to Vicor Corporation		$ (1,196)	$ 17,101	$ (15,669)	$ 28,345
Denominator:
Denominator for basic net (loss) income per share-weighted average shares	[1]	44,855	44,230	44,686	44,196
Effect of dilutive securities:
Employee stock options	[2]		676		711
Denominator for diluted net (loss) income per share - adjusted weighted-average shares and assumed conversions		44,855	44,906	44,686	44,907
Basic net (loss) income per share		$ (0.03)	$ 0.39	$ (0.35)	$ 0.64
Diluted net (loss) income per share		$ (0.03)	$ 0.38	$ (0.35)	$ 0.63

[1] Denominator represents the weighted average number of shares of Common Stock and Class B Common Stock outstanding.

[2] Options to purchase 3,083,375 shares of Common Stock for the three and six months ended June 30, 2024 were not included in the calculation of net loss per share as the effect would have been antidilutive. Options to purchase 1,574,000 and 1,307,000 shares of Common Stock for the three and six months ended June 30, 2023, respectively, were not included in the calculation of net income per share as the effect would have been antidilutive.