XML 112 R89.htm IDEA: XBRL DOCUMENT
v3.20.4

Fair Value Measurements - Additional Information (Details) - USD ($) $ in Millions | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2020 | Dec. 31, 2019
Warrants options term |  | 3 years
SAFEs [Member] |  |
Warrants options risk free rate |  | 30.00%
With IPO [Member] |  |
Assumed total equity valuation | $ 3,300 |
Warrants options term | 1 month 15 days |
Warrants options volatility | 76.20% |
Warrants options risk free rate | 0.08% |
Percentage of occurrence of ipo | 95 |
No IPO [Member] |  |
Assumed total equity valuation | $ 1,900 |
Warrants options term | 2 years 1 month 15 days |
Warrants options volatility | 72.10% |
Warrants options risk free rate | 0.13% |
Weightage being assigned to the value derived in the IPO | 5 |
Warrant [Member] |  |
Assumed total equity valuation |  | $ 640
Warrants options volatility |  | 49.60%
Warrants options risk free rate |  | 1.62%
Warrant [Member] | No IPO [Member] |  |
Warrants options risk free rate | 35.00% | 35.00%

X
- Definition Percentage of occurrence of ipo + References No definition available. + Details
Name: | lazr_PercentageOfOccurrenceOfIpo
Namespace Prefix: | lazr_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition Warrants Assumed Total Equity Valuation + References No definition available. + Details
Name: | lazr_WarrantsAssumedTotalEquityValuation
Namespace Prefix: | lazr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Weightage being assigned to the value derived in the IPO + References No definition available. + Details
Name: | lazr_WeightageBeingAssignedToTheValueDerivedInTheIpo
Namespace Prefix: | lazr_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. + 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 -Subparagraph (f)(2)(ii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The risk-free interest rate assumption that is used in valuing an option on its own shares. + 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 -Subparagraph (f)(2)(iv) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Expected term of 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.D.2) -URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809 + Details
Name: | us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=lazr_SimpleAgreementsForFutureEquityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementScenarioAxis=lazr_WithIpoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementScenarioAxis=lazr_NoIpoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_WarrantMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |