Convertible Debt Instrument, Debt And Equity Components, Discounts And Commissions Payable

No definition available.

Name:	lyft_ConvertibleDebtInstrumentDebtAndEquityComponentsDiscountsAndCommissionsPayable
Namespace Prefix:	lyft_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Debt Instrument, Convertible, Capped Calls Expense

+ References

No definition available.

+ Details

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Namespace Prefix:	lyft_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Debt Instrument, Convertible, Capped Calls Initial Cap Price

+ References

No definition available.

+ Details

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Namespace Prefix:	lyft_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt Instrument, Convertible, Capped Calls Initial Cap Price, Premium Percentage

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt Instrument, Convertible, Carrying Amount Equity Component

+ References

No definition available.

+ Details

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Namespace Prefix:	lyft_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Debt Instrument, Convertible, Initial Conversion Price, Premium Percentage

+ References

No definition available.

+ Details

Name:	lyft_DebtInstrumentConvertibleInitialConversionPricePremiumPercentage
Namespace Prefix:	lyft_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt Instrument, Convertible, Period After Consecutive Trading Days

+ References

No definition available.

+ Details

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Namespace Prefix:	lyft_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Interest Rate, Swap Rate Term

+ References

No definition available.

+ Details

Name:	lyft_InterestRateSwapRateTerm
Namespace Prefix:	lyft_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Interest Rate, Variable Spread Rate

+ References

No definition available.

+ Details

Name:	lyft_InterestRateVariableSpreadRate
Namespace Prefix:	lyft_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Proceeds From Convertible Debt, Net Of Issuance Costs

+ References

No definition available.

+ Details

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Namespace Prefix:	lyft_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The price per share of the conversion feature embedded in the debt instrument.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 5
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6031898-161870

+ Details

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Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 7
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-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

The amount by which the convertible debt's if-converted value exceeds its principle amount at the balance sheet date, regardless of whether the instrument is currently convertible. This element applies to public companies only.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 5
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6031898-161870

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Threshold period of specified consecutive trading days within which common stock price to conversion price of convertible debt instrument must exceed threshold percentage for specified number of trading days to trigger conversion feature.

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Minimum percentage of common stock price to conversion price of convertible debt instruments to determine eligibility of conversion.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger
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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Threshold number of specified trading days that common stock price to conversion price of convertible debt instruments must exceed threshold percentage within a specified consecutive trading period to trigger conversion feature.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

+ Details

Name:	us-gaap_DebtInstrumentFaceAmount
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Balance Type:	credit
Period Type:	instant

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 6
-Subparagraph (a)
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-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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Period Type:	instant

- 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_DebtInstrumentLineItems
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Period Type:	duration

- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph e
-URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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-SubTopic 30
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-Paragraph 3
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Period Type:	instant

- Definition

Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=121555522&loc=d3e12069-110248

+ Details

Name:	us-gaap_GuaranteeObligationsMaximumExposure
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)(3)
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-Topic 942
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-Section S99
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

Name:	us-gaap_LongTermDebtFairValue
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a rate subject to change from time to time.

+ References

+ Details

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- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

+ Details

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Data Type:	num:perShareItemType
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Period Type:	instant

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Debt - Additional Information (Details)			3 Months Ended
Debt - Additional Information (Details)	May 15, 2020 USD ($) day $ / shares	Feb. 07, 2020 USD ($)	Mar. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Sep. 17, 2020 USD ($)	May 12, 2020 $ / shares	Mar. 11, 2019 USD ($)
Debt Instrument
Share price (in dollars per share) \| $ / shares						$ 29.53
Net carrying amount of liability component			$ 689,204,000	$ 679,996,000
Flexdrive Services, LLC \| Revolving Credit Facility
Debt Instrument
Maximum exposure to loss under terms of the guarantee			$ 5,800,000
Procurement Provider \| Revolving Credit Facility
Debt Instrument
Maximum borrowing capacity					$ 50,000,000.0		$ 95,000,000.0
Convertible Senior Notes Due 2025
Debt Instrument
Interest rate			1.50%
Net carrying amount of liability component			$ 577,215,000	568,744,000
Convertible Senior Notes Due 2025 \| Convertible Debt
Debt Instrument
Aggregate principal	$ 747,500,000
Interest rate	1.50%
Net proceeds from issuance of convertible debt	$ 733,200,000
Conversation rate	0.0260491
Initial conversion price (in dollars per share) \| $ / shares	$ 38.39
Initial conversion price of convertible debt, premium percentage	30.00%
Limitation on sale of common stock, sale price threshold, number of trading days \| day	20
Number of consecutive business days	5 days
Redemption price percentage	100.00%
Net carrying amount of liability component	$ 558,300,000		577,215,000
Carrying value of equity component	$ 189,200,000
Effective interest rate	8.00%
Debt and equity components of convertible loans, discounts and commissions payable	$ 14,300,000
Issuance costs attributable to the liability component of convertible debt	10,700,000
If-converted value in excess of principal			1,200,000,000
Fair value of long-term debt			1,300,000,000
Cost of capped call transactions	$ 132,700,000
Initial cap price (in dollars per share) \| $ / shares	$ 73.83
Initial cap price premium percentage	150.00%
Convertible Senior Notes Due 2025 \| Convertible Debt \| Debt Instrument, Redemption, Period One
Debt Instrument
Limitation on sale of common stock, sale price threshold, trading period \| day	30
Threshold percentage of stock price trigger	130.00%
Convertible Senior Notes Due 2025 \| Convertible Debt \| Debt Instrument, Redemption, Period Two
Debt Instrument
Limitation on sale of common stock, sale price threshold, trading period \| day	5
Threshold percentage of stock price trigger	98.00%
Non-Revolving Loan
Debt Instrument
Net carrying amount of liability component			103,988,000	103,305,000
Fair value of long-term debt			$ 103,900,000
Non-Revolving Loan \| Minimum
Debt Instrument
Interest rate			2.88%
Debt term (in months)		24 months
Non-Revolving Loan \| Minimum \| LIBOR
Debt Instrument
Variable interest percentage		2.68%
Non-Revolving Loan \| Maximum
Debt Instrument
Interest rate			5.25%
Debt term (in months)		48 months
Non-Revolving Loan \| Maximum \| LIBOR
Debt Instrument
Variable interest percentage		2.88%
Non-Revolving Loan \| Flexdrive Services, LLC
Debt Instrument
Maximum borrowing capacity		$ 300,000,000
Master Vehicle Loan
Debt Instrument
Net carrying amount of liability component			$ 8,001,000	$ 7,947,000
Fair value of long-term debt			$ 8,000,000.0
Interest rate swap term		3 years
Variable interest spread rate		2.10%
Master Vehicle Loan \| LIBOR
Debt Instrument
Spread on variable rate		3.00%
Master Vehicle Loan \| Minimum
Debt Instrument
Interest rate			2.60%
Debt term (in months)		12 months
Master Vehicle Loan \| Maximum
Debt Instrument
Interest rate			6.75%
Debt term (in months)		48 months
Master Vehicle Loan \| Flexdrive Services, LLC
Debt Instrument
Maximum borrowing capacity		$ 50,000,000