Stockholders' Equity - Additional information (Detail)	12 Months Ended
	Dec. 31, 2024 USD ($) Vote shares	Dec. 31, 2023 shares	Dec. 31, 2022 shares	Jul. 31, 2024 USD ($)	Nov. 30, 2000 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock repurchased as per November plan | $				$ 100,000,000	$ 30,000,000
Stock repurchase program amount available | $	$ 99,503,000
Stock repurchase	0	0	0
Class B Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of vote to entitles holders | Vote	10
Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of vote to entitles holders | Vote	1
New Repurchase Authorization [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock repurchase	497,000
2000 Plan, Vicor [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock reserved for issuance	19,975,730	20,703,238	21,080,950