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Stock-Based Compensation and Employee Benefit Plans - Additional Information (Detail) - USD ($) | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Term of Option | 10 years |  |
Employee's compensation plan | The Company matches employee contributions to the plan at a rate of 50%, up to the first 6% of an employee’s compensation. |  |
Employee contributions | 20.00% |  |
Company contribution to the plan | $ 2,211,000 | $ 1,593,000 | $ 1,031,000
Share based compensation arrangement by share based payment award vesting period | 5 years |  |
Minimum [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Employees pre-tax salary | 1.00% |  |
Maximum [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Employees pre-tax salary | 80.00% |  |
2000 Plan, Vicor [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Common Stock reserved for issuance | 10,000,000 |  |
Non-qualified stock options granted to non-employees | 85.00% |  |
Annual forfeiture rate | 5.35% | 4.85% | 5.25%
Share exercisable | 1,046,092 | 776,559 | 924,964
Weighted average exercise prices | $ 18.26 | $ 11.63 | $ 9.05
Total Intrinsic value | $ 7,252,000 | $ 56,933,000 | $ 50,410,000
Options Exercised | 1,634,000 | 7,616,000 | 9,127,000
Fair value of stock options that vested | 15,087,000 | $ 10,506,000 | $ 10,847,000
Total unrecognized compensation cost | $ 19,144,000 |  |
Compensation cost recognized over a weighted-average period | 2 years 1 month 6 days |  |
Expected recognized expenses, Year One | $ 8,860,000 |  |
Expected recognized expenses, Year Two | 5,558,000 |  |
Expected recognized expenses, Year Three | 3,164,000 |  |
Expected recognized expenses, Year Four | 1,323,000 |  |
Expected recognized expenses, Year Five | $ 239,000 |  |
Weighted-average fair value | $ 26.53 | $ 39.27 | $ 30.63
Stock Bonus Plan [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Common stock purchase by non-employees | 109,964 |  |
2017 Employee Stock Purchase Plan [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Non-qualified stock options granted to non-employees | 85.00% |  |
Maximum number of shares authorized for issuances | 2,000,000 |  |
Maximum percentage of payroll deductions on employee's compensation | 15.00% |  |
Offering period of employee stock purchase plan | 6 months |  |

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- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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