XML 108 R80.htm IDEA: XBRL DOCUMENT
v3.20.4

Convertible Preferred Stock and Preferred Stock Warrants - Dividends & Conversion (Details) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 USD ($) item
Temporary Equity [Line Items] |
Dividend rate per share (as a percent) | 8.00%
Maximum aggregate gross proceeds from public offering | $ | $ 50.0
Series B Preferred stock |
Temporary Equity [Line Items] |
Original Issue Price, Number of times of original issue price, Maximum | 1
Series C Preferred stock |
Temporary Equity [Line Items] |
Original Issue Price, Number of times of original issue price, Maximum | 1

X
- Definition Maximum amount of aggregate gross proceeds from Public Offering, that will automatically trigger the conversion of preferred stock. + References No definition available. + Details
Name: | lmda_ConvertiblePreferredStockMaximumAggregateGrossProceedsFromPublicOfferingTrigger
Namespace Prefix: | lmda_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Maximum number of times of Original Issue Price that the holders of preferred stock would receive in respect of each share, to be considered for voting purposes. + References No definition available. + Details
Name: | lmda_ConvertiblePreferredStockNumberOfTimesOfOriginalIssuePriceMaximum
Namespace Prefix: | lmda_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The percentage rate used to calculate dividend payments on preferred stock. + References No definition available. + Details
Name: | us-gaap_PreferredStockDividendRatePercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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_StatementClassOfStockAxis=us-gaap_SeriesBPreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_SeriesCPreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |