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Fair Value of Financial Instruments - Summarizes the Conclusions Reached Regarding Fair Value Measurements (Detail) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022
Significant Unobservable Inputs (Level 3) |  |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |
Beginning Balance | $ 684 | $ 1,262 |
Net Change in fair value included in earnings | (406) | (221) |
Purchases / Issuance | 0 | 368 |
Sales / Repurchases | 0 | 0 |
Ending Balance | 278 | $ 1,409 |
Fair Value, Measurements, Recurring |  |  |
Assets: |  |  |
Equity securities with readily determinable fair value | 4,387 |  | $ 1,343
Total | 4,387 |  | 1,343
Liabilities: |  |  |
Warranty liability, related party | 278 |  | 684
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  |
Assets: |  |  |
Equity securities with readily determinable fair value | 4,387 |  | 1,343
Total | 4,387 |  | 1,343
Liabilities: |  |  |
Warranty liability, related party | 0 |  | 0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Warrant liability, related party |  |  |
Liabilities: |  |  |
Warranty liability, related party | 0 |  | 0
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) |  |  |
Assets: |  |  |
Equity securities with readily determinable fair value | 0 |  | 0
Total | 0 |  | 0
Liabilities: |  |  |
Warranty liability, related party | 0 |  | 0
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Warrant liability, related party |  |  |
Liabilities: |  |  |
Warranty liability, related party | 0 |  | 0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) |  |  |
Assets: |  |  |
Equity securities with readily determinable fair value | 0 |  | 0
Total | 0 |  | 0
Liabilities: |  |  |
Warranty liability, related party | 278 |  | 684
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Warrant liability, related party |  |  |
Liabilities: |  |  |
Warranty liability, related party | $ 278 |  | $ 684

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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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- Definition Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as current. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483467/210-10-45-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1A -Publisher FASB -URI https://asc.fasb.org//1943274/2147482736/825-10-45-1A + Details
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- Definition Amount of purchases of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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- Definition Amount of gain (loss) recognized in income from derivative asset (liability) after deduction of derivative liability (asset), measured at fair value on recurring basis using unobservable input (level 3). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-3 + Details
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