XML 107 R84.htm IDEA: XBRL DOCUMENT
v3.20.4

Convertible Preferred Stock - Summary of conversion prices of each series of preferred stock (Details) - $ / shares | Sep. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Series A |  |
Temporary Equity [Line Items] |  |
Effective Conversion Price | $ 43.30 | $ 43.30
Series A-1 |  |
Temporary Equity [Line Items] |  |
Effective Conversion Price | 15.31 | 15.31
Series A-2 |  |
Temporary Equity [Line Items] |  |
Effective Conversion Price | 15.12 | 15.12
Series A-3 |  |
Temporary Equity [Line Items] |  |
Effective Conversion Price | 17.89 | 17.89
Series A-4 |  |
Temporary Equity [Line Items] |  |
Effective Conversion Price | 20.07 | 20.07
Series A-5 |  |
Temporary Equity [Line Items] |  |
Effective Conversion Price | 20.15 | 20.15
Series A-6 |  |
Temporary Equity [Line Items] |  |
Effective Conversion Price | 30.31 | 30.31
Series A-7 |  |
Temporary Equity [Line Items] |  |
Effective Conversion Price | 34.64 | 34.64
Series A-8 |  |
Temporary Equity [Line Items] |  |
Effective Conversion Price | 36.81 | 36.81
Series A-9 |  |
Temporary Equity [Line Items] |  |
Effective Conversion Price | 38.97 | 38.97
Series A-10 |  |
Temporary Equity [Line Items] |  |
Effective Conversion Price | 41.14 | 41.14
Series A-11 |  |
Temporary Equity [Line Items] |  |
Effective Conversion Price | 24.30 | 24.30
Series X |  |
Temporary Equity [Line Items] |  |
Effective Conversion Price | $ 135.79 | $ 135.79

X
- Definition Preferred Stock, Convertible, Conversion Price. + References No definition available. + Details
Name: | lazr_PreferredStockConvertibleConversionPrice
Namespace Prefix: | lazr_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_TemporaryEquityLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_CollateralAxis=lazr_SeriesARedeemableConvertiblePreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CollateralAxis=lazr_SeriesAOneRedeemableConvertiblePreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CollateralAxis=lazr_SeriesATwoRedeemableConvertiblePreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CollateralAxis=lazr_SeriesAThreeRedeemableConvertiblePreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CollateralAxis=lazr_SeriesAFourRedeemableConvertiblePreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CollateralAxis=lazr_SeriesAFiveRedeemableConvertiblePreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CollateralAxis=lazr_SeriesASixRedeemableConvertiblePreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CollateralAxis=lazr_SeriesASevenRedeemableConvertiblePreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CollateralAxis=lazr_SeriesAEightRedeemableConvertiblePreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CollateralAxis=lazr_SeriesANineRedeemableConvertiblePreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CollateralAxis=lazr_SeriesATenRedeemableConvertiblePreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CollateralAxis=lazr_SeriesAElevenRedeemableConvertiblePreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CollateralAxis=lazr_SeriesXRedeemableConvertiblePreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |