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
		Mar. 31, 2024	Mar. 31, 2023
Numerator:
Net (loss) income attributable to Vicor Corporation		$ (14,473)	$ 11,244
Denominator:
Denominator for basic net (loss) income per share-weighted average shares	[1]	44,516	44,162
Effect of dilutive securities:
Employee stock options	[2]		745
Denominator for diluted net (loss) income per share - adjusted weighted-average shares and assumed conversions		44,516	44,907
Basic net (loss) income per share		$ (0.33)	$ 0.25
Diluted net (loss) income per share		$ (0.33)	$ 0.25

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

[2] Options to purchase 2,500,448 and 1,035,618 shares of Common Stock for the three months ended March 31, 2024 and 2023, respectively, were not included in the calculations of net (loss) income per share as the effect would have been antidilutive.