Lyft (LYFT) 10-K 1 Mar 21 2020 FY Annual report Financial data

Cover Page

Cover Page - USD ($) $ in Billions	12 Months Ended
	Dec. 31, 2020	Feb. 22, 2021	Jun. 30, 2020
Entity Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2020
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	001-38846
Entity Registrant Name	Lyft, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	20-8809830
Entity Address, Address Line One	185 Berry Street,
Entity Address, Address Line Two	Suite 5000
Entity Address, City or Town	San Francisco
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	94107
City Area Code	844
Local Phone Number	250-2773
Title of 12(b) Security	Class A common stock, par value of $0.00001 per share
Trading Symbol	LYFT
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 8.4
Documents Incorporated by Reference	Portions of the registrant’s Proxy Statement for the 2021 Annual Meeting of Stockholders are incorporated herein by reference in Part III of this Annual Report on Form 10-K to the extent stated herein. Such proxy statement will be filed with the Securities and Exchange Commission within 120 days of the registrant’s fiscal year ended December 31, 2020
Amendment Flag	false
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Entity Central Index Key	0001759509
Class A Common Stock
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		320,128,117
Class B Common Stock
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		8,802,629

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Current assets
Cash and cash equivalents	$ 319,734	$ 358,319
Short-term investments	1,931,334	2,491,805
Prepaid expenses and other current assets	343,070	397,239
Total current assets	2,594,138	3,247,363
Restricted cash and cash equivalents	118,559	204,976
Restricted investments	1,101,712	1,361,045
Other investments	10,000	0
Property and equipment, net	313,297	188,603
Operating lease right of use assets	275,756	441,258
Intangible assets, net	65,845	82,919
Goodwill	182,687	158,725
Other assets	16,970	6,494
Total assets	4,678,964	5,691,383
Current liabilities
Accounts payable	84,108	38,839
Insurance reserves	987,064	1,378,462
Accrued and other current liabilities	954,008	939,865
Operating lease liabilities — current	49,291	94,199
Total current liabilities	2,074,471	2,451,365
Operating lease liabilities	265,803	382,077
Long-term debt, net of current portion	644,236	0
Other liabilities	18,291	3,857
Total liabilities	3,002,801	2,837,299
Commitments and contingencies (Note 8)
Stockholders’ equity
Preferred stock, $0.00001 par value; 1,000,000,000 shares authorized as of December 31, 2020 and December 31, 2019; no shares issued and outstanding as of December 31, 2020 and December 31, 2019	0	0
Common stock, $0.00001 par value; 18,000,000,000 Class A shares authorized as of December 31, 2020 and December 31, 2019, 314,934,487 and 293,793,151 Class A shares issued and outstanding as of December 31, 2020 and December 31, 2019, respectively; 100,000,000 Class B shares authorized, 8,802,629 Class B shares issued and outstanding as of December 31, 2020 and December 31, 2019	3	3
Additional paid-in capital	8,977,061	8,398,927
Accumulated other comprehensive income (loss)	(473)	2,725
Accumulated deficit	(7,300,428)	(5,547,571)
Total stockholders’ equity	1,676,163	2,854,084
Total liabilities, redeemable convertible preferred stock and stockholders’ equity	$ 4,678,964	$ 5,691,383

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2020	Dec. 31, 2019
Preferred stock, par value (in dollars per share)	$ 0.00001	$ 0.00001
Preferred stock, shares authorized (in shares)	1,000,000,000	1,000,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Class A Common Stock
Common stock, par value (in dollars per share)	$ 0.00001	$ 0.00001
Common stock, shares authorized (in shares)	18,000,000,000	18,000,000,000
Common stock, shares issued (in shares)	314,934,487	293,793,151
Common stock, shares outstanding (in shares)	314,934,487	293,793,151
Class B Common Stock
Common stock, par value (in dollars per share)	$ 0.00001	$ 0.00001
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	8,802,629	8,802,629
Common stock, shares outstanding (in shares)	8,802,629	8,802,629

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Revenues	$ 2,364,681	$ 3,615,960	$ 2,156,616
Costs and expenses
Cost of revenue	1,447,516	2,176,469	1,243,400
Operations and support	453,963	636,116	338,402
Research and development	909,126	1,505,640	300,836
Sales and marketing	416,331	814,122	803,751
General and administrative	946,127	1,186,093	447,938
Total costs and expenses	4,173,063	6,318,440	3,134,327
Loss from operations	(1,808,382)	(2,702,480)	(977,711)
Interest expense	(32,678)	0	0
Other income, net	43,669	102,595	67,114
Loss before income taxes	(1,797,391)	(2,599,885)	(910,597)
Provision for (benefit from) income taxes	(44,534)	2,356	738
Net loss	$ (1,752,857)	$ (2,602,241)	$ (911,335)
Net loss per share, basic and diluted (in dollars per share)	$ (5.61)	$ (11.44)	$ (43.04)
Weighted-average number of shares outstanding used to compute net loss per share, basic and diluted (in shares)	312,175,000	227,498,000	21,176,000
Stock-based compensation included in costs and expenses:
Stock-based compensation expense	$ 565,807	$ 1,599,311	$ 8,577
Cost of revenue
Stock-based compensation included in costs and expenses:
Stock-based compensation expense	28,743	81,321	501
Operations and support
Stock-based compensation included in costs and expenses:
Stock-based compensation expense	15,829	75,212	177
Research and development
Stock-based compensation included in costs and expenses:
Stock-based compensation expense	325,624	971,941	4,107
Sales and marketing
Stock-based compensation included in costs and expenses:
Stock-based compensation expense	23,385	72,046	261
General and administrative
Stock-based compensation included in costs and expenses:
Stock-based compensation expense	$ 172,226	$ 398,791	$ 3,531

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of Comprehensive Income [Abstract]
Net loss	$ (1,752,857)	$ (2,602,241)	$ (911,335)
Other comprehensive income (loss)
Foreign currency translation adjustment	(2,187)	162	988
Unrealized gain (loss) on marketable securities, net of taxes	(1,011)	2,430	156
Other comprehensive income (loss)	(3,198)	2,592	1,144
Comprehensive loss	$ (1,756,055)	$ (2,599,649)	$ (910,191)

Consolidated Statements of Rede

Consolidated Statements of Redeemable Convertible Preferred Stock and Stockholders' Equity (Deficit) - USD ($) $ in Thousands	Total	Redeemable Convertible Preferred Stock	Common StockClass A and Class B Common Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)
Beginning balance (in shares) at Dec. 31, 2017		199,815,000
Beginning balance at Dec. 31, 2017		$ 4,284,049
Increase (Decrease) in Temporary Equity [Roll Forward]
Issuance of Series H redeemable convertible preferred stock, net of issuance cost (in shares)		6,397,000
Issuance of Series H redeemable convertible preferred stock, net of issuance cost		$ 254,162
Issuance of Series I redeemable convertible preferred stock, net of issuance cost (in shares)		12,429,000
Issuance of Series I redeemable convertible preferred stock, net of issuance cost		$ 588,496
Issuance of Series I redeemable convertible preferred stock issued as consideration as part of a business combination (in shares)		535,000
Issuance of Series I redeemable convertible preferred stock issued as consideration as part of a business combination		$ 25,340
Ending balance (in shares) at Dec. 31, 2018	219,175,709	219,176,000
Ending balance at Dec. 31, 2018	$ 5,152,047	$ 5,152,047
Beginning balance (in shares) at Dec. 31, 2017			19,916,000
Beginning balance at Dec. 31, 2017	(1,979,438)		$ 0	$ 55,568	$ (2,033,995)	$ (1,011)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)			2,254,000
Issuance of common stock upon exercise of stock options	9,564			9,564
Issuance of restricted common stock upon early exercise of stock options (in shares)			27,000
Issuance of restricted stock awards granted in conjunction with a business combination (in shares)			241,000
Vesting of early exercised stock options	207			207
Stock-based compensation	8,577			8,577
Other comprehensive income (loss)	1,144					1,144
Net loss	(911,335)				(911,335)
Ending balance (in shares) at Dec. 31, 2018			22,438,000
Ending balance at Dec. 31, 2018	(2,871,281)		$ 0	73,916	(2,945,330)	133
Increase (Decrease) in Temporary Equity [Roll Forward]
Conversion of redeemable convertible preferred stock to common stock in connection with initial public offering (in shares)		(219,176,000)
Conversion of redeemable convertible preferred stock to common stock in connection with initial public offering		$ (5,152,047)
Ending balance (in shares) at Dec. 31, 2019		0
Ending balance at Dec. 31, 2019		$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)			10,855,000
Issuance of common stock upon exercise of stock options	18,336			18,336
Issuance of common stock upon settlement of RSUs (in shares)			28,622,000
Shares withheld related to net share settlement (in shares)			(14,394,000)
Shares withheld related to net share settlement	(942,982)			(942,982)
Issuance of common stock in connection with initial public offering, net of offering costs, underwriting discounts and commissions (in shares)			35,497,000
Issuance of common in connection with initial public offering, net of offering costs, underwriting discounts and commissions	2,483,623		$ 1	2,483,622
Conversion of redeemable convertible preferred stock to common stock in connection with initial public offering (in shares)			219,176,000
Conversion of redeemable convertible preferred stock to common stock in connection with initial public offering	5,152,047		$ 2	5,152,045
Canceled escrow shares related to a business combination (in shares)			(2,000)
Cancelled escrow shares related to business combination	(90)			(90)
Issuance of common stock under employee stock purchase plan (in shares)			404,000
Issuance of common stock under employee stock purchase plan	14,767			14,767
Vesting of early exercised stock options	2			2
Stock-based compensation	1,599,311			1,599,311
Other comprehensive income (loss)	2,592					2,592
Net loss	(2,602,241)				(2,602,241)
Ending balance (in shares) at Dec. 31, 2019			302,596,000
Ending balance at Dec. 31, 2019	$ 2,854,084		$ 3	8,398,927	(5,547,571)	2,725
Ending balance (in shares) at Dec. 31, 2020		0
Ending balance at Dec. 31, 2020		$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)	1,038,000		1,039,000
Issuance of common stock upon exercise of stock options	$ 4,673			4,673
Issuance of common stock upon settlement of RSUs (in shares)			19,762,000
Shares withheld related to net share settlement (in shares)			(552,000)
Shares withheld related to net share settlement	(20,240)			(20,240)
Issuance of common stock under employee stock purchase plan (in shares)			892,000
Issuance of common stock under employee stock purchase plan	21,351			21,351
Equity component of the convertible senior notes issued, net of tax and offering costs	139,224			139,224
Purchase of capped call	(132,681)			(132,681)
Stock-based compensation	565,807			565,807
Other comprehensive income (loss)	(3,198)					(3,198)
Net loss	(1,752,857)				(1,752,857)
Ending balance (in shares) at Dec. 31, 2020			323,737,000
Ending balance at Dec. 31, 2020	$ 1,676,163		$ 3	$ 8,977,061	$ (7,300,428)	$ (473)

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash flows from operating activities
Net loss	$ (1,752,857)	$ (2,602,241)	$ (911,335)
Adjustments to reconcile net loss to net cash used in operating activities
Depreciation and amortization	157,353	108,429	18,752
Stock-based compensation	565,807	1,599,311	8,577
Amortization of premium on marketable securities	6,461	597	473
Accretion of discount on marketable securities	(14,075)	(39,285)	(23,605)
Amortization of debt discount and issuance costs	21,050	0	0
Deferred income tax impact from convertible senior notes	(46,324)	0	0
Loss on sale and disposal of assets, net	15,216	36,541	0
Other	4,518	(875)	989
Changes in operating assets and liabilities, net effects of acquisition
Prepaid expenses and other assets	39,573	(119,453)	(75,640)
Operating lease right-of-use assets	61,201	108,600	0
Accounts payable	44,489	5,067	(40,811)
Insurance reserves	(391,398)	568,190	433,735
Accrued and other liabilities	(36,679)	332,363	308,192
Lease liabilities	(53,234)	(102,946)	0
Net cash used in operating activities	(1,378,899)	(105,702)	(280,673)
Cash flows from investing activities
Purchases of marketable securities	(4,112,677)	(6,448,895)	(5,454,118)
Purchases of non-marketable securities	(10,000)	0	0
Purchases of term deposits	(1,110,317)	(142,811)	0
Proceeds from sales of marketable securities	656,960	1,092,978	900,361
Proceeds from maturities of marketable securities	4,745,926	4,071,165	3,838,464
Proceeds from maturities of term deposits	645,622	0	0
Purchases of property and equipment and scooter fleet	(93,639)	(178,088)	(68,668)
Purchases of other intangible assets	0	0	(2,200)
Sales of property and equipment	30,894	7,131	0
Cash paid for acquisitions, net of cash acquired	(12,342)	(12,323)	(257,591)
Net cash provided by (used in) investing activities	740,427	(1,610,843)	(1,043,752)
Cash flows from financing activities
Proceeds from issuance of common stock in initial public offering, net of underwriting commissions, offering costs and reimbursements	0	2,484,029	0
Proceeds from issuance of redeemable convertible preferred stock, net of issuance costs	0	0	842,658
Repayment of loans	(50,639)	0	0
Proceeds from issuance of convertible senior notes	734,065	0	0
Payment of debt issuance costs	(824)	0	0
Purchase of capped call	(132,681)	0	0
Proceeds from exercise of stock options and other common stock issuances	26,067	33,062	9,986
Taxes paid related to net share settlement of equity awards	(20,240)	(942,895)	0
Principal payments on finance lease obligations	(41,682)	0	0
Other	(1,500)	0	(406)
Net cash provided by financing activities	512,566	1,574,196	852,238
Effect of foreign exchange on cash, cash equivalents and restricted cash and cash equivalents	(74)	328	(246)
Net decrease in cash, cash equivalents and restricted cash and cash equivalents	(125,980)	(142,021)	(472,433)
Beginning of period	564,465	706,486	1,178,919
End of period	438,485	564,465	706,486
Reconciliation of cash, cash equivalents and restricted cash and cash equivalents to the consolidated balance sheets
Total cash, cash equivalents and restricted cash and cash equivalents	564,465	706,486	706,486
Supplemental disclosures of cash flow information
Cash paid for income taxes	4,037	819	326
Cash paid for interest	12,545	0	0
Non-cash investing and financing activities
Purchases of property and equipment, and scooter fleet not yet settled	41,271	13,070	8,154
Deferred offering costs accrued, unpaid	0	0	1,689
Right of use assets acquired under operating leases	28,838	264,076	0
Right of use assets acquired under finance leases	6,556	0	0
Redeemable convertible preferred stock issued as part of a business combination	0	0	25,340
Conversion of redeemable convertible preferred stock to common stock in connection with initial public offering	0	5,152,047	0
Reclassification of deferred offering costs to additional paid-in capital upon initial public offering	0	7,690	0
Decrease in goodwill from measurement period adjustments related to business combinations	0	3,240	0
Settlement of pre-existing right-of-use assets under operating leases in connection with acquisition of Flexdrive	133,088	0	0
Settlement of pre-existing lease liabilities under operating leases in connection with acquisition of Flexdrive	$ 130,089	$ 0	$ 0

Description of Business and Bas

Description of Business and Basis of Presentation	12 Months Ended
	Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business and Basis of Presentation	Description of Business and Basis of Presentation Organization and Description of Business Lyft, Inc. is incorporated in Delaware with its headquarters in San Francisco, California. The Company operates multimodal transportation networks in the United States and Canada that offer access to a variety of transportation options through the Company’s platform and mobile-based applications. This network enables multiple modes of transportation including the facilitation of peer-to-peer ridesharing by connecting drivers who have a vehicle with riders who need a ride. The Lyft Platform provides a marketplace where drivers can be matched with riders via the Lyft App where the Company operates as a TNC. Transportation options through the Company’s platform and mobile-based applications are substantially comprised of its ridesharing marketplace that connects drivers and riders in cities across the United States and in select cities in Canada, Lyft’s network of shared bikes and scooters, the Express Drive program which is a flexible vehicle rental program for drivers who want to drive using the Lyft Platform but do not have access to a vehicle that meets Lyft's requirements, and Lyft Rentals, a consumer offering for users who want to rent a car for a fixed period of time for personal use. Transfer of Certain Legacy Auto Liability Insurance On March 31, 2020, the Company’s wholly-owned subsidiary, Pacific Valley Insurance Company, Inc. (“PVIC”), entered into a Novation Agreement (the “Novation”) with Clarendon National Insurance Company, a subsidiary of Enstar Group Limited (“Clarendon”), and certain underwriting companies of Zurich North America (“Zurich”). Pursuant to the terms of the Novation, on the effective date March 31, 2020, the obligations of PVIC as reinsurer to Zurich for certain legacy auto liability insurance business underwritten between October 1, 2015 and September 30, 2018 ("Legacy Auto Liability"), were assigned to, assumed by, and novated to Clarendon, for cash consideration of $465.0 million. The Company paid the $465.0 million cash consideration to Clarendon. In conjunction with the Novation, Clarendon and PVIC executed a binding letter of intent to enter into an Excess of Loss Retrocession Agreement (“Retrocession Agreement”). Refer to Note 5 “Supplemental Financial Statement Information” to the consolidated financial statements for information regarding this transaction . Basis of Presentation These consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (U.S. GAAP) and include the accounts of the Company and its wholly-owned subsidiaries. All intercompany balances and transactions have been eliminated. The Company uses the U.S. dollar predominantly as the functional currency of its foreign subsidiaries. For foreign subsidiaries where the U.S. dollar is the functional currency, gains and losses from remeasurement of foreign currency balances into U.S. dollars are included in the consolidated statements of operations. For the foreign subsidiary where the local currency is the functional currency, translation adjustments of foreign currency financial statements into U.S. dollars are recorded to a separate component of accumulated other comprehensive loss. Initial Public Offering The Company’s registration statement on Form S-1 (the “IPO Registration Statement”) related to its initial public offering (“IPO”) was declared effective on March 28, 2019, and the Company’s Class A common stock began trading on the Nasdaq Global Select Market on March 29, 2019. On April 2, 2019, the Company completed its IPO, in which the Company sold 32,500,000 shares of Class A common stock at a price to the public of $72.00 per share. On April 9, 2019, the Company sold an additional 2,996,845 shares of Class A common stock at a price to the public of $72.00 per share pursuant to the exercise of the underwriters’ option to purchase additional shares. The Company received aggregate net proceeds of $2.5 billion after deducting underwriting discounts and commissions of $70.3 million and offering expenses of $7.7 million subject to certain cost reimbursements. Immediately prior to the completion of the IPO, 219,175,709 shares of redeemable convertible preferred stock then outstanding converted into an equivalent number of shares of common stock. Immediately prior to the completion of the IPO, the Company filed its Amended and Restated Certificate of Incorporation, which authorizes a total of 18,000,000,000 shares of Class A common stock, 100,000,000 shares of Class B common stock, and 1,000,000,000 shares of preferred stock. Upon the filing of the Amended and Restated Certificate of Incorporation, 255,007,393 shares of the Company’s common stock then outstanding were automatically reclassified into an equivalent number of shares of the Company’s Class A common stock. Immediately after the reclassification and prior to the completion of the IPO, a total of 12,779,709 shares of Class A common stock held by Logan Green, John Zimmer and their respective affiliated trusts were exchanged for an equivalent number of shares of Class B common stock pursuant to the terms of certain exchange agreements. As a result, following the completion of the IPO, the Company has two classes of authorized and outstanding common stock: Class A common stock and Class B common stock.

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2020
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and reported amounts of revenues and expenses during the reporting periods. The Company bases its estimates on various factors and information which may include, but are not limited to, history and prior experience, expected future results, new related events and economic conditions, which form the basis for making judgments about the carrying value of assets and liabilities that are not readily apparent from other sources. Actual results could differ materially from those estimates. Significant items subject to estimates and assumptions include those related to losses resulting from insurance claims, fair value of financial instruments, goodwill and identifiable intangible assets, leases, indirect tax obligations, legal contingencies, valuation allowance for deferred income taxes, and the valuation of stock-based compensation. The outbreak of the coronavirus (“COVID-19”) was declared a pandemic by the World Health Organization in March 2020, and has spread throughout in the United States, Canada, and in many other countries globally. The full extent to which the Company's operations will be impacted by the COVID-19 pandemic will depend largely on future developments, which are highly uncertain and cannot be accurately predicted, including the duration of the pandemic, new information which may emerge concerning the severity of the pandemic and actions by government authorities and private businesses to contain the pandemic or respond to its impact, among other things. The Company has adopted several measures in response to the COVID-19 pandemic, including pausing our shared rides offerings, distributing thousands of bottles of hand sanitizer, masks and partitions to drivers, requiring face coverings in all rideshare trips, providing most employees with the option to work from home until September 1, 2021, restricting non-critical business travel by employees, and making adjustments to expenses and cash flow to correlate with declines in revenue. The Company carried out two restructuring events in 2020, one which involved the termination of approximately 17% of its employees, furlough of approximately 300 employees and temporary salary reductions for all exempt employees and board members. Refer to Note 17 “Restructuring” to the consolidated financial statements for information regarding these restructuring events . The Company cannot be certain that these actions will mitigate the negative effects of the pandemic on our business . As of the date of issuance of the financial statements, the Company is not aware of any material event or circumstance that would require us to update our estimates, judgments, or revise the carrying value of our assets or liabilities, including the recording of any credit losses. These estimates may change, as new events occur and additional information is obtained, and could lead to impairment of long lived assets or goodwill, or credit losses associated with investments or other assets, and the impact of such changes on estimates will be recognized in the consolidated financial statements as soon as they become known. Actual results could differ from those estimates and any such differences may be material to our financial statements. Segment Information Operating segments are defined as components of an entity for which separate financial information is available and that is regularly reviewed by the Chief Operating Decision Maker (“CODM”) in deciding how to allocate resources to an individual segment and in assessing performance. The Company’s Chief Executive Officer is the Company’s CODM. The CODM reviews financial information presented on a consolidated basis for purposes of making operating decisions, allocating resources, and evaluating financial performance. As such, the Company has determined that it operates as one operating segment. During the years ended December 31, 2020, 2019 and 2018, the Company did not generate material international revenues and as of December 31, 2020, 2019 and 2018, the Company did not have material assets located outside of the United States. Revenue Recognition The Company generates its revenue from its multimodal transportation networks that offer access to a variety of transportation options through the Lyft Platform and mobile-based applications. Substantially all of the Company’s revenue is generated from its ridesharing marketplace that connects drivers and riders and is recognized in accordance with Accounting Standards Codification Topic 606 (“ASC 606”). The Company also generates rental revenue from Flexdrive, its network of Light Vehicles, and Lyft Rentals, which is recognized in accordance with Accounting Standards Codification Topic 842 (“ASC 842”). The table below presents the Company's revenues as included in the consolidated statements of operations (in thousands): Year Ended December 31, 2020 2019 2018 Revenue from contracts with customers (ASC 606) $ 2,208,656 $ 3,465,473 $ 2,106,021 Rental revenue (ASC 842) 156,025 150,487 50,595 Total revenue $ 2,364,681 $ 3,615,960 $ 2,156,616 Revenue from Contracts with Customers (ASC 606) The Company recognizes revenue for its rideshare marketplace in accordance with ASC 606. The Company generates revenue from service fees and commissions (collectively, “fees”) paid by drivers for use of the Lyft Platform and related activities to connect drivers with riders to facilitate and successfully complete rides via the App where the Company operates as a TNC. The Company recognizes revenue upon completion of each ride. Drivers enter into terms of service (“ToS”) with the Company in order to use the Lyft Driver App. Under the ToS, drivers agree that the Company retains the applicable fee as consideration for their use of the Lyft Platform and related activities from the fare and related charges it collects from riders on behalf of drivers. The Company is acting as an agent in facilitating the ability for a driver to provide a transportation service to a rider. The Company reports revenue on a net basis, reflecting the fee owed to the Company from a driver as revenue, and not the gross amount collected from the rider. As the Company’s customary business practice, a contract exists between the driver and the Company when the driver’s ability to cancel the ride lapses, which typically is upon pickup of the rider. The Company’s single performance obligation in the transaction is to connect drivers with riders to facilitate the completion of a successful transportation service for riders. The Company recognizes revenue upon completion of a ride as its performance obligation is satisfied upon the completion of the ride. The Company collects the fare and related charges from riders on behalf of drivers using the rider’s pre-authorized credit card or other payment mechanism and retains its fees before making the remaining disbursement to drivers; thus the driver’s ability and intent to pay is not subject to significant judgment. The Company recognizes revenue from subscription fees paid to access transportation options through the Lyft Platform and mobile-based applications over the applicable subscription period in accordance with ASC 606. Rental Revenue (ASC 842) The Company generates rental revenues primarily from Flexdrive, its network of Light Vehicles, and Lyft Rentals. Rental revenues are recognized for rental and rental related activities where an identified asset is transferred to the customer and the customer has the ability to control that asset in accordance with ASC 842. Under the Flexdrive and Lyft Rentals programs, the Company operates a fleet of rental vehicles comprised of both vehicles owned by the Company and vehicles leased from third-party leasing companies (“head leases”). The Company either leases or subleases vehicles to drivers and Lyft Rentals renters, and as a result, the Company considers itself to be the accounting lessor or sublessor, as applicable, in these arrangements in accordance with ASC 842. Fleet operating costs include monthly fixed lease payments and other vehicle operating or ownership costs, as applicable. For vehicles that are subleased, sublease income and head lease expense for these transactions are recognized on a gross basis in the consolidated financial statements. Drivers who rent vehicles are charged rental fees, which the Company collects from the driver by deducting such amounts from the driver’s earnings on the Lyft Platform. Due to the short-term nature of the Flexdrive, Lyft Rentals, and Light Vehicle transactions, the Company classifies these rentals as operating leases. Revenue generated from single-use ride fees paid by Light Vehicle riders is recognized upon completion of each related ride. Revenue generated from Flexdrive and Lyft Rentals is recognized evenly over the rental period, which is typically seven days or less. Enterprise and Trade Receivables The Company collects any fees owed for completed transactions on the Lyft Platform primarily from the rider’s authorized payment method. Uncollected fees are included in prepaid expenses and other current assets in the consolidated balance sheets and represent receivables from (i) participants in the Company’s enterprise programs (“Enterprise Users”), where the transactions have been completed and the amounts owed from the Enterprise Users have either been invoiced or are unbilled as of the reporting date; and (ii) riders where the authorized payment method is a credit card but the fare amounts have not yet settled with third-party payment processors. Under the ToS, drivers agree that the Company retains the applicable fee as consideration for their use of the Lyft Platform and related activities from the fare and related charges it collects from riders on behalf of drivers. Accordingly, the Company has no trade receivables from drivers. The portion of the fare receivable to be remitted to drivers is included in accrued and other current liabilities in the consolidated balance sheets. The Company records an allowance for credit losses for fees owed for completed transactions that may never settle or be collected. As a result of the adoption of Accounting Standards Update No. 2016-13 “Financial Instruments—Credit Losses" (“ASC 326”), the Company’s measurement of the allowance for credit losses has been augmented to reflect the change from the incurred loss model to the expected credit loss model. The allowance for credit losses reflects the Company’s current estimate of expected credit losses inherent in the enterprise and trade receivables balance. In determining the expected credit losses, the Company considers its historical loss experience, the aging of its receivable balance, current economic and business conditions, and anticipated future economic events that may impact collectability. The Company reviews its allowance for credit losses periodically and as needed, and amounts are written off when determined to be uncollectible. The Company’s receivable balance, which consists primarily of amounts due from Enterprise Users, was $104.7 million, $120.0 million and $100.5 million as of December 31, 2020, 2019 and 2018, respectively. The Company's allowance for credit losses was $15.2 million, $6.2 million and $2.6 million as of December 31, 2020, 2019 and 2018, respectively. The change in the allowance for credit losses for the year ended December 31, 2020 was related to $11.7 million of additions for provision for expected credit losses and $2.7 million of write-offs. The change in the allowance for credit losses for the year ended December 31, 2019 was related to $5.1 million of additions for provision for expected credit losses and $1.5 million of write-offs. The change in the allowance for credit losses for the year ended December 31, 2018 was related to $3.9 million of additions for provision for expected credit losses and $1.3 million of write-offs. Incentive Programs The Company offers incentives to attract drivers, riders, Light Vehicle riders and Lyft Rentals renters to use the Lyft Platform. Drivers generally receive cash incentives while riders, Light Vehicle riders and Lyft Rentals renters generally receive free or discounted rides under such incentive programs. Incentives provided to drivers, Light Vehicle riders and Lyft Rental renters, the customers of the Company, are accounted for as a reduction of the transaction price. As the riders are not the Company’s customers, incentives provided to riders are generally recognized as sales and marketing expense except for certain pricing programs described below. Driver Incentives The Company offers various incentive programs to drivers, including minimum guaranteed payments, volume-based discounts and performance-based bonus payments. These driver incentives are similar to retrospective volume-based rebates and represent variable consideration that is typically settled within a week. The Company reduces the transaction price by the estimated amount of the incentives expected to be paid upon completion of the performance criteria by applying the most likely outcome method. Therefore, such driver incentives are recorded as a reduction to revenue. Driver incentives are recorded as a reduction to revenue if the Company does not receive a distinct good or service in exchange for the payment or cannot reasonably estimate the fair value of the good or service received. Driver incentives for referring new drivers or riders are accounted for as sales and marketing expense. The amount recorded as an expense is the lesser of the amount of the payment or the established fair value of the benefit received. The fair value of the benefit is established using amounts paid to third parties for similar services. Rideshare Rider Incentives The Company has several rideshare rider incentive programs, which are offered to encourage rider activity on the Lyft Platform. Generally, the rider incentive programs are as follows: (i) Market-wide marketing promotions. Market-wide promotions reduce the fare charged by drivers to riders for all or substantially all rides in a specific market. This type of incentive effectively reduces the overall pricing of the service provided by drivers for that specific market and the gross fare charged by the driver to the rider, and thereby results in a lower fee earned by the Company. Accordingly, the Company records this type of incentive as a reduction to revenue at the date it records the corresponding revenue transaction. (ii) Targeted marketing promotions. Targeted marketing promotions are used to promote the use of the Lyft Platform to a targeted group of riders. An example is a promotion where the Company offers a number of discounted rides (capped at a given number of rides) which are valid only during a limited period of time to a targeted group of riders. The Company believes that the incentives that provide consideration to riders to be applied to a limited number of rides are similar to marketing coupons. These incentives differ from the market-wide marketing promotions because they do not reduce the overall pricing of the service provided by drivers for a specific market. During the promotion period, riders not utilizing an incentive would be charged the full fare. These incentives represent marketing costs. When a rider redeems the incentive, the Company recognizes revenue equal to the transaction price and the cost of the incentive is recorded as sales and marketing expense. (iii) Rider referral programs. Under the rider referral program, the referring rider (the referrer) earns referral coupons when a new rider (the referee) completes their first ride on the Lyft Platform. The Company records the incentive as a liability at the time the incentive is earned by the referrer with the corresponding charge recorded to sales and marketing expense. Referral coupons typically expire within one year. The Company estimates breakage using its historical experience. As of December 31, 2020 and 2019, the rider referral coupon liability was not material. Light Vehicle Rider and Lyft Rentals Renter Incentives Incentives offered to Light Vehicle riders and Lyft Rentals renters were not material for the years ended December 31, 2020 and 2019. For the years ended December 31, 2020, 2019 and 2018, in relation to the driver, rider, Light Vehicle rider and Lyft Rental renter incentive programs, the Company recorded $390.8 million, $560.3 million and $555.4 million as a reduction to revenue and $135.0 million, $381.5 million and $299.2 million as sales and marketing expense, respectively. Refunds From time to time the Company issues credits or refunds to riders unsatisfied by the level of service provided by the driver. There is no legal obligation to remunerate such riders nor does the Company issue such credits or refunds to riders on behalf of the drivers. The Company accounts for credits or refunds, which are not recoverable from the drivers as sales and marketing expenses when incurred. For the years ended December 31, 2020, 2019 and 2018, rider refunds were $18.8 million, $33.9 million and $41.8 million, respectively. The credits and refunds for Light Vehicle riders were not material for the years ended December 31, 2020, 2019 and 2018. Cost of Revenue Cost of revenue consists of costs directly related to revenue generating transactions through the Company’s multimodal platform which primarily includes insurance costs, payment processing charges, and other costs. Insurance costs consist of insurance generally required under TNC and city regulations for ridesharing and bike and scooter rentals and also includes occupational hazard insurance for drivers. Payment processing charges include merchant fees, chargebacks and failed charges. Other costs included in cost of revenue are hosting and platform-related technology costs, vehicle lease expenses, personnel-related compensation costs, depreciation, amortization of technology-related intangible assets, asset write-off charges, and gains and losses related to the sale of vehicles. Operations and Support Operations and support expenses primarily consist of personnel-related compensation costs of local operations teams and teams who provide phone, email and chat support to users, bike and scooter fleet operations support costs, driver background checks and onboarding costs, facility cost, certain car rental fleet support costs, and fees paid to third-parties providing operations support. Bike and scooter fleet operations support costs include general repairs and maintenance, and other customer support activities related to repositioning bikes and scooters for rider convenience, cleaning and safety checks. Research and Development Research and development expenses primarily consist of personnel-related compensation costs and facilities costs. Such expenses include costs related to the Company’s autonomous vehicle technology initiatives. Research and development costs are expensed as incurred. Sales and Marketing Sales and marketing expenses primarily consist of rider incentives, personnel-related compensation costs, driver incentives for referring new drivers or riders, advertising expenses, rider refunds and marketing partnerships with third parties. Sales and marketing costs are expensed as incurred. Advertising expenses were $102.5 million, $188.3 million and $352.3 million, respectively, for the years ended December 31, 2020, 2019 and 2018. General and Administrative General and administrative expenses primarily consist of personnel-related compensation costs, professional services fees, certain insurance costs that are generally not required under TNC regulations, certain loss contingency expenses including legal accruals and settlements, insurance claims administrative fees, policy spend, depreciation, facility costs, and other corporate costs. General and administrative expenses are expensed as incurred. Stock-Based Compensation The Company incurs stock-based compensation expense primarily from RSUs, PSUs, stock options, and ESPP purchase rights. The Company estimates the fair value of stock options granted to employees, directors, and consultants and ESPP purchase rights using the Black-Scholes option-pricing model. The Black-Scholes model considers several variables and assumptions in estimating the fair value of stock-based awards. These variables include: • per share fair value of the underlying common stock; • exercise price; • expected term; • risk-free interest rate; • expected annual dividend yield; and • expected stock price volatility over the expected term. The Company estimates the expected term for stock options using the simplified method for “plain vanilla” stock option awards. The expected term of the ESPP purchase rights is estimated using the period from the beginning of the offering period to the end of each purchase period. Since the Company has limited history as a public company and does not yet have sufficient trading history for the Company's common stock, the Company estimates volatility for stock options and ESPP purchase rights using the historical volatility of the stock price of similar publicly traded peer companies. The risk-free interest rate is based on the yield available on U.S. Treasury zero-coupon issues similar in duration to the expected term of the stock options or ESPP purchase rights granted. The fair value of stock options that are expected to vest is recognized as compensation expense on a straight-line basis over the requisite service period. The Company recognizes compensation expense related to the ESPP purchase rights on a straight-line basis over the offering period, which is typically 12 months. The fair value of RSUs and PSUs is estimated based on the fair market value of the Company’s common stock on the date of grant, which subsequent to the IPO is determined based on the closing price of the Company’s Class A common stock as reported on the date of grant. Prior to the IPO, the Company granted RSUs which vest upon the satisfaction of both a service condition and a performance condition. Compensation expense for RSUs with service and performance conditions is amortized on a graded basis over the requisite service period as long as the performance condition in the form of a specified liquidity event is probable to occur. The liquidity event condition was satisfied upon the effectiveness of the IPO Registration Statement on March 28, 2019. On that date the Company recorded a cumulative stock-based compensation expense of $857.2 million using the accelerated attribution method for the RSUs for which the service condition was satisfied as of March 28, 2019. The remaining unrecognized stock-based compensation expense related to these RSUs is recorded over their remaining requisite service periods. The compensation expense for RSUs granted after March 28, 2019, which vest upon satisfaction of a service-based condition only, is recognized on a straight-line basis over the requisite service period. Stock-based compensation expense is based on awards ultimately expected to vest and reflects estimated forfeitures. Forfeitures are estimated at the time of grant and revised, if necessary, in subsequent periods if actual forfeitures differ from initial estimates. Income Taxes The Company accounts for income taxes using the asset and liability method. Under this method, deferred income tax assets and liabilities are recorded based on the estimated future tax effects of differences between the financial statement and income tax basis of existing assets and liabilities. These differences are measured using the enacted statutory tax rates that are expected to apply to taxable income for the years in which differences are expected to reverse. The Company recognizes the effect on deferred income taxes of a change in tax rates in the period that includes the enactment date. The Company records a valuation allowance to reduce its deferred tax assets to the net amount that it believes is more-likely-than-not to be realized. Management considers all available evidence, both positive and negative, including historical levels of income, expectations and risks associated with estimates of future taxable income and ongoing tax planning strategies in assessing the need for a valuation allowance. Under the provisions of ASC 740-10, Income Taxes, the Company evaluates uncertain tax positions by reviewing against applicable tax law for all positions taken by the Company with respect to tax years for which the statute of limitations is still open. ASC 740-10 provides that a tax benefit from an uncertain tax position may be recognized when it is more likely than not that the position will be sustained upon examination, including resolutions of any related appeals or litigation processes, based on the technical merits. The Company recognizes interest and penalties related to the liability for unrecognized tax benefits, if any, as a component of the income tax expense line in the accompanying consolidated statement of operations. Business Combinations The Company accounts for its business combinations using the acquisition method of accounting, which requires, among other things, allocation of the fair value of purchase consideration to the tangible and intangible assets acquired and liabilities assumed at their estimated fair values on the acquisition date. The excess of the fair value of purchase consideration over the values of these identifiable assets and liabilities is recorded as goodwill. When determining the fair value of assets acquired and liabilities assumed, management makes significant estimates and assumptions, especially with respect to intangible assets. Management’s estimates of fair value are based upon assumptions believed to be reasonable, but which are inherently uncertain and unpredictable and, as a result, actual results may differ from estimates. During the measurement period, not to exceed one year from the date of acquisition, the Company may record adjustments to the assets acquired and liabilities assumed, with a corresponding offset to goodwill if new information is obtained related to facts and circumstances that existed as of the acquisition date. After the measurement period, any subsequent adjustments are reflected in the consolidated statements of operations and comprehensive loss. Acquisition costs, such as legal and consulting fees, are expensed as incurred. Cash and Cash Equivalents Cash equivalents consist of institutional money market funds and certificates of deposits denominated in U.S. dollars as well as commercial paper and corporate bonds. Cash equivalents are highly liquid, short-term investments having an original maturity of 90 days or less that are readily convertible to known amounts of cash. Also included in cash and cash equivalents are cash in transit from payment processors for credit and debit card transactions, which was immaterial as of each of December 31, 2020 and 2019, and money market deposit accounts that are stated at cost, which approximate fair value. Restricted Cash and Cash Equivalents Restricted cash and cash equivalents consist primarily of amounts held in separate trust accounts and restricted bank accounts as collateral for insurance purposes and amounts pledged to secure certain letters of credit. Investments Debt Securities The Company’s accounting for its debt securities is based on the legal form of the security, the Company’s intended holding period for the security, and the nature of the transaction. Investments in debt securities include commercial paper, certificates of deposit, corporate bonds and U.S. treasury bills. Investments in debt securities are classified as available-for-sale and are recorded at fair value. The Company considers an available-for-sale debt security to be impaired if the fair value of the investment is less than its amortized cost basis. The entire difference between the amortized cost basis and the fair value of the Company’s available-for-sale debt securities is recognized in the consolidated statements of operations as an impairment if, (i) the fair value of the security is below its amortized cost and (ii) the Company intends to sell or is more likely than not required to sell the security before recovery of its amortized cost basis. If neither criterion is met, the Company evaluates whether the decline in fair value is due to credit losses or other factors. In making this assessment, the Company considers the extent to which the security’s fair value is less than amortized cost, changes to the rating of the security by third-party rating agencies, and adverse conditions specific to the security, among other factors. If the Company's assessment indicates that a credit loss exists, the credit loss is measured based on the Company's best estimate of the cash flows expected to be collected. When developing its estimate of cash flows expected to be collected, the Company considers all available information relevant to the collectability of the security, including past events, current conditions, and reasonable and supportable forecasts. Credit loss impairments are recognized through an allowance for credit losses adjustment to the amortized cost basis of the debt securities on the balance sheet with an offsetting credit loss expense in the consolidated statements of operations. Impairments related to factors other than credit losses are recognized as an adjustment to the amortized cost basis of the security and an offsetting amount in accumulated other comprehensive income (loss), net of tax. As of December 31, 2020, the Company had not recorded any credit impairments. The Company determines realized gains or losses on the sale of debt securities on a specific identification method. The Company's investments in debt securities include: (i) Cash and cash equivalents. Cash equivalents include certificates of deposits, commercial paper and corporate bonds that have an original maturity of 90 days or less and are readily convertible to known amounts of cash. (ii) Short-term investments. Short-term investments are comprised of commercial paper, certificates of deposit, and corporate bonds, which mature in twelve months or less. As a result, the Company classifies these investments as current assets in the accompanying consolidated balance sheets. (iii) Restricted investments. Restricted investments are comprised of debt security investments in commercial paper, certificates of deposit, U.S. treasury bills, and corporate bonds, which are held in trust accounts at third-party financial institutions pursuant to certain contracts with insurance providers. Non-marketable Equity Securities The Company has elected to measure its investments in non-marketable equity securities at cost, with remeasurements to fair value only upon the occurrence of observable transactions for identical or similar investments of the same issuer or impairment. The Company qualitatively assesses whether indicators of impairment exist. Factors considered in this assessment include the investees’ financial and liquidity position, access to capital resources, exposure to industries and markets impacted by COVID-19, and the time since the last adjustment to fair value, among others. If an impairment exists, the Company estimates the fair value of the investment by using the best information available, which may include cash flow projections or other available market data, and recognizes a loss for the amount by which the carrying value exceeds the fair value of the investment in the consolidated statements of operations. Concentrations of Credit Risk The Company’s cash, cash equivalents and short-term investments are potentially subject to concentration of credit risk. Although the Company deposits its cash with multiple financial institutions, the deposits, at times, may exceed federally insured limits. The Company has not experienced any losses on its deposits of cash and cash equivalents. Management believes that the institutions are financially stable and, accordingly, minimal credit risk exists. The Company limits purchases of debt securities to investment-grade securities. Fair Value Measurements The Company measures assets and liabilities at fair value based on an expected exit price, which represents the amount that would be received on the sale of an asset or paid to transfe

Acquisitions

Acquisitions	12 Months Ended
	Dec. 31, 2020
Business Combinations [Abstract]
Acquisitions	Acquisitions Acquisition of Flexdrive Services, LLC (“Flexdrive”) On February 7, 2020 (the “Closing Date”), the Company completed its acquisition of Flexdrive for approximately $20.0 million and treated the acquisition as a business combination. The acquisition is expected to contribute to the growth of the Company's current business, and help expand the range of the Company's use cases. Prior to the acquisition, the Company acted as the lessee of Flexdrive’s vehicles and sublessor for each vehicle prior to its rental by drivers. As of the Closing Date, the Company had approximately $133.1 million of operating lease right-of-use assets and $130.1 million of operating lease liabilities on the balance sheet related to this preexisting contractual relationship with Flexdrive. This preexisting contractual relationship and others were settled on the Closing Date as an adjustment to the purchase price, resulting in a total acquisition consideration paid of $13.0 million. Acquisition costs were immaterial and are included in general and administrative expenses in the consolidated statements of operations. The following table summarizes the fair value of the assets acquired and liabilities assumed at the Closing Date (in thousands): Cash and cash equivalents $ 587 Prepaid expenses and other current assets 276 Property and equipment 111,881 Finance lease right-of-use assets 56,014 Identifiable intangible assets - developed technology 13,200 Total identifiable assets acquired 181,958 Loans 134,121 Finance lease & other liabilities 57,265 Total liabilities assumed 191,386 Net liabilities assumed (9,428) Goodwill 22,455 Total acquisition consideration $ 13,027 Goodwill represents the excess of the total purchase consideration over the fair value of the underlying assets acquired and liabilities assumed. Goodwill is attributable to expected synergies and monetization opportunities from gaining control over the Flexdrive platform (“developed technology” intangible asset) and gaining greater flexibility in monetizing the fleet of owned and leased vehicles from the combined operations of the Company and Flexdrive. The acquisition is a taxable business combination for tax purposes and goodwill recognized in the acquisition is deductible for tax purposes. The fair value of the developed technology intangible asset was determined to be $13.2 million with an estimated useful life of three years. The fair value of the developed technology was determined using the avoided cost approach. In the avoided cost approach, the fair value of an asset is based on the future after-tax costs which are avoided (or reduced) as a result of owning (or having the rights to) the asset for three years after the Closing Date. Indications of value were developed by discounting these benefits to their present value. The results of operations for the acquired business have been included in the consolidated statements of operations for the period subsequent to the Company's acquisition of Flexdrive. Flexdrive's results of operations for periods prior to this acquisition were not material to the consolidated statements of operations and, accordingly, pro forma financial information has not been presented. Acquisition of Bikeshare Holdings LLC (“Motivate”) On November 30, 2018, the Company completed its acquisition of Motivate, a New York-headquartered bikeshare company, for cash consideration of $250.9 million. The purpose of the acquisition is to establish a solid foothold in the bikeshare market and offer access to new transportation options on the Lyft Platform. Acquisition costs of $2.6 million were expensed as incurred and are included in general and administrative expenses in the consolidated statement of operations for the year ended December 31, 2018. In connection with the acquisition of Motivate, the Company recognized identifiable assets and assumed liabilities based on their respective fair values at November 30, 2018. The following table summarizes the fair value of the assets acquired and liabilities assumed (in thousands): Cash and cash equivalents $ 7,248 Prepaid expenses and other assets 20,458 Property and equipment 68,312 Identifiable intangible assets 89,800 Total identifiable assets acquired 185,818 Total liabilities assumed 53,357 Net assets acquired 132,461 Goodwill 118,474 Total acquisition consideration $ 250,935 Goodwill represents the excess of the total purchase consideration over the fair value of the underlying assets acquired and liabilities assumed. Goodwill is attributable to expected synergies and monetization opportunities from the expanded platform as well as planned growth in new markets expected to be achieved from the combined operations of the Company and Motivate. The acquisition is considered to be an asset acquisition for tax purposes and goodwill recognized in the acquisition is not deductible for tax purposes. During the fourth quarter of 2019, the Company recorded immaterial measurement period adjustments. The offset of these adjustments were recorded as a decrease to goodwill in the consolidated balance sheet. An assessment of the fair value of identified intangible assets and their respective useful lives as of the acquisition date are as follows: Fair Value Estimated Useful Contractual relationships – cities $ 61,100 4-12 User relationships 18,700 3 Developed technology 10,000 1 Total intangible assets $ 89,800 The fair value of the contractual relationships – cities was determined using the income approach. In the income approach, the fair value of an asset is based on the expected receipt of future economic benefits such as earnings and cash inflows from current sales projections and estimated costs over the estimated contractual relationship period which varies from four The fair value of the user relationships and developed technology was determined using the replacement cost approach. In the replacement cost approach, the fair value of an asset is based on the cost of a market participant to reconstruct a substitute asset of comparable utility, adjusted for any obsolescence. The fair value of the asset would include the seller’s expected profit margin in the market and any opportunity costs lost over the period to reconstruct the substitute asset. For the year ended December 31, 2018, Motivate revenue and net loss included in the Company’s consolidated statement of operations were not material. Over the approximately five years following the transaction, the Company committed to invest an aggregate of $100 million in the bikeshare program for the New York metro area. The Company also assumed certain pre-existing contractual obligations to increase the bike fleets in other locations, which are not considered to be material. Other Acquisitions In the fourth quarter of 2018, the Company completed two additional business combinations in exchange for cash of $35.0 million, redeemable convertible preferred stock of $25.3 million and a liability of $1.7 million related to indemnification aggregating to a total consideration of approximately $62.0 million which are not material to the consolidated financial statements. In the fourth quarter of 2019, the Company completed two business combinations which are not material to the consolidated financial statements. Pro forma results of operations have not been presented because the effects of the acquisitions were not material to the Company’s consolidated financial statements.

Goodwill and Intangible Assets,

Goodwill and Intangible Assets, Net	12 Months Ended
	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets, Net	Goodwill and Intangible Assets, Net The changes in the carrying amount of goodwill for the years ended December 31, 2020, 2019 and 2018 were as follows (in thousands): Balance as of December 31, 2018 $ 152,085 Additions 10,947 Foreign currency translation and other adjustments (4,307) Balance as of December 31, 2019 $ 158,725 Additions 22,455 Foreign currency translation and other adjustments 1,507 Balance as of December 31, 2020 $ 182,687 Intangible assets, net consisted of the following as of the dates indicated (in thousands): December 31, 2020 Weighted-average Gross Carrying Accumulated Net Carrying Developed technology and patents 3.5 $ 56,086 $ 43,434 $ 12,652 Contractual relationship – cities and user relationships 7.8 79,800 26,607 53,193 Total intangible assets $ 135,886 $ 70,041 $ 65,845 December 31, 2019 Weighted-average Gross Carrying Accumulated Net Carrying Developed technology and patents 1.6 $ 42,887 $ 26,309 $ 16,578 Contractual relationship – cities and user relationships 7.7 79,800 13,459 66,341 Total intangible assets $ 122,687 $ 39,768 $ 82,919 Amortization expense was $29.2 million, $35.1 million and $4.8 million for the years ended December 31, 2020, 2019 and 2018, respectively. As of December 31, 2020, future amortization of intangible assets that will be recorded in cost of revenue and operating expenses is estimated as follows (in thousands). Year ended December 31: 2021 $ 16,558 2022 10,842 2023 6,095 2024 5,639 2025 5,619 Thereafter 21,092 Total remaining amortization $ 65,845

Supplemental Financial Statemen

Supplemental Financial Statement Information	12 Months Ended
	Dec. 31, 2020
Balance Sheet Components Disclosure [Abstract]
Supplemental Financial Statement Information	Supplemental Financial Statement Information Cash Equivalents and Short-Term Investments The following tables summarize the cost or amortized cost, gross unrealized gain, gross unrealized loss and fair value of the Company’s cash equivalents and short-term investments as of the dates indicated (in thousands): December 31, 2020 Cost or Unrealized Estimated Gains Losses Unrestricted Balances (1) Money market deposit accounts $ 174,347 $ — $ — $ 174,347 Term deposits 601,000 — — 601,000 Certificates of deposit 677,602 178 (4) 677,776 Commercial paper 376,771 38 (20) 376,789 Corporate bonds 287,445 115 (41) 287,519 Total unrestricted cash equivalents and short-term investments 2,117,165 331 (65) 2,117,431 Restricted Balances (2) Money market funds 24,757 — — 24,757 Money market deposit accounts 162 — — 162 Term deposits 6,506 — — 6,506 Certificates of deposit 481,154 213 (3) 481,364 Commercial paper 469,193 57 (10) 469,240 Corporate bonds 184,560 67 (26) 184,601 Total restricted cash equivalents and investments 1,166,332 337 (39) 1,166,630 Total unrestricted and restricted cash equivalents and investments $ 3,283,497 $ 668 $ (104) $ 3,284,061 _______________ (1) Excludes $133.6 million of cash, which is included within the $2.3 billion of cash and cash equivalents and short-term investments on the consolidated balance sheets. (2) Excludes $53.8 million of restricted cash, which is included within the $1.2 billion of restricted cash and cash equivalents and restricted short-term investments on the consolidated balance sheets. December 31, 2019 Cost or Unrealized Estimated Gains Losses Unrestricted Balances (1) Money market deposit accounts $ 217,523 $ — $ — $ 217,523 Term deposits 135,000 — — 135,000 Certificates of deposit 1,275,750 887 (43) 1,276,594 Commercial paper 876,382 181 (68) 876,495 Corporate bonds 247,359 219 — 247,578 Total unrestricted cash equivalents and short-term investments 2,752,014 1,287 (111) 2,753,190 Restricted Balances (2) Money market funds 19,250 — — 19,250 Money market deposit accounts 7,884 — — 7,884 Term deposits 7,811 — — 7,811 Certificates of deposit 608,578 262 (12) 608,828 Commercial paper 791,087 165 (97) 791,155 Corporate bonds 75,828 80 — 75,908 Total restricted cash equivalents and investments 1,510,438 507 (109) 1,510,836 Total unrestricted and restricted cash equivalents and investments $ 4,262,452 $ 1,794 $ (220) $ 4,264,026 _______________ (1) Excludes $96.9 million of cash, which is included within the $2.9 billion of cash and cash equivalents and short-term investments on the consolidated balance sheets. (2) Excludes $56.4 million of restricted cash, which is included within the $1.6 billion of restricted cash and cash equivalents and restricted short-term investments on the consolidated balance sheets. The Company’s short-term investments consist of available-for-sale debt securities and term deposits. The term deposits are at cost, which approximates fair value. The weighted-average remaining maturity of the Company’s investment portfolio was less than one year as of the periods presented. No individual security incurred continuous unrealized losses for greater than 12 months. The Company purchases investment grade marketable debt securities which are rated by nationally recognized statistical rating organizations in accordance with its investment policy. This policy is designed to minimize the Company's exposure to credit losses. As of December 31, 2020, the credit-quality of the Company’s marketable available-for-sale debt securities had remained stable. The unrealized losses recognized on marketable available-for-sale debt securities as of December 31, 2020 was primarily related to the extreme market volatility associated with COVID-19. The contractual terms of these investments do not permit the issuer to settle the securities at a price less than the amortized cost basis of the investments and it is not expected that the investments would be settled at a price less than their amortized cost basis. The Company does not intend to sell the investments and it is not more likely than not that the Company will be required to sell the investments before recovery of their amortized cost basis. The Company is not aware of any specific event or circumstance that would require the Company to change its assessment of credit losses for any marketable available-for-sale debt security as of December 31, 2020. These estimates may change, as new events occur and additional information is obtained, and will be recognized in the consolidated financial statements as soon as they become known. No credit losses were recognized as of December 31, 2020 for the Company’s marketable and non-marketable debt securities. The following table summarizes the Company’s available-for-sale debt securities in an unrealized loss position for which no allowance for credit losses was recorded, aggregated by major security type (in thousands): December 31, 2020 Estimated Fair Value Unrealized Losses Certificates of deposit $ 167,793 $ (7) Corporate bonds 179,369 (67) Commercial paper 164,595 (30) Total available-for-sale debt in an unrealized loss position $ 511,757 $ (104) Property and Equipment, net Property and equipment, net consisted of the following as of the dates indicated (in thousands): December 31, 2020 2019 2018 Bike fleet $ 140,473 $ 124,380 $ 65,985 Leasehold improvements 105,169 66,490 39,727 Owned vehicles 112,498 — — Finance lease right-of-use assets 28,109 — — Computer equipment and software 17,923 14,026 11,366 Furniture and fixtures 5,099 473 262 Construction in progress 19,957 25,139 3,629 429,228 230,508 120,969 Less: Accumulated depreciation (115,931) (41,905) (11,712) Property and equipment, net $ 313,297 $ 188,603 $ 109,257 Depreciation and amortization expense related to property and equipment was $121.0 million, $37.9 million, and $8.6 million for the years ended December 31, 2020, 2019 and 2018, respectively. Accrued and Other Current Liabilities Accrued and other current liabilities consisted of the following as of the dates indicated (in thousands): December 31, 2020 2019 Ride-related accruals $ 196,439 $ 253,840 Insurance-related accruals 269,849 218,161 Legal accruals 226,408 162,766 Insurance claims payable and related fees 28,318 87,357 Long-term debt, current 35,760 — Other 197,234 217,741 Accrued and other current liabilities $ 954,008 $ 939,865 Insurance Reserves The following table provides a rollforward of the insurance reserve for the periods presented (in thousands): Year Ended December 31, 2020 2019 2018 Beginning balance $ 1,378,462 $ 810,273 $ 376,538 Losses paid (552,693) (540,627) (220,936) Change in estimates for prior periods 168,131 219,163 3,392 Transfer of certain legacy auto insurance liabilities (407,885) — — Reserves for current period 401,049 889,653 651,279 Ending balance $ 987,064 $ 1,378,462 $ 810,273 On March 31, 2020, the Company’s wholly-owned subsidiary, PVIC, entered into a Novation Agreement with Clarendon, and certain underwriting companies of Zurich. Pursuant to term of the Novation, on the effective date March 31, 2020, the obligations of PVIC as reinsurer to Zurich for the Legacy Auto Liability, were assigned to, assumed by, and novated to Clarendon, for cash consideration of $465.0 million. As a result of the Novation, the Company’s obligations related to the Legacy Auto Liability was fully extinguished and novated to Clarendon on March 31, 2020. The Company paid the $465.0 million cash consideration to Clarendon. The Company derecognized $407.9 million of insurance reserves liabilities and recognized a loss of $64.7 million for the net cost of the Novation in the consolidated statements of operations for the year ended December 31, 2020, with $62.5 million in cost of revenue and $2.2 million in general and administrative expense. In conjunction with the Novation, Clarendon and PVIC executed a Retrocession Agreement, pursuant to which PVIC will reinsure Clarendon’s losses related to the Legacy Auto Liability in excess of an aggregate limit of $816.0 million. Other Income, Net The following table sets forth the primary components of other income, net as reported on the consolidated statements of operations (in thousands): Year Ended December 31, 2020 2019 2018 Interest income (1) $ 43,654 $ 102,506 $ 66,462 Gain (loss) on sale of securities, net (868) 246 (219) Foreign currency exchange gains (losses), net 1,818 (523) 229 Other, net (935) 366 642 Other income, net $ 43,669 $ 102,595 $ 67,114 _______________

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2020
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements The following tables set forth the Company’s financial instruments that were measured at fair value on a recurring basis as of the dates indicated by level within the fair value hierarchy (in thousands): December 31, 2020 Level 1 Level 2 Level 3 Total Unrestricted Balances (1) Certificates of deposit $ — $ 677,777 $ — $ 677,777 Commercial paper — 376,789 — 376,789 Corporate bonds — 287,519 — 287,519 Total unrestricted cash equivalents and short-term investments — 1,342,085 — 1,342,085 Restricted Balances (2) Money market funds 24,757 — — 24,757 Certificates of deposit — 481,365 — 481,365 Commercial paper — 469,240 — 469,240 Corporate bonds — 184,601 — 184,601 Total restricted cash equivalents and investments 24,757 1,135,206 — 1,159,963 Total unrestricted and restricted cash equivalents and investments $ 24,757 $ 2,477,291 $ — $ 2,502,048 _______________ (1) $133.6 million of cash, $174.3 million of money market deposit accounts and $601.0 million of term deposits are not subject to recurring fair value measurement and therefore excluded from this table. However, these balances are included within the $2.3 billion of cash and cash equivalents and short-term investments on the consolidated balance sheets. (2) $53.8 million of restricted cash, $0.2 million of a money market deposit account and $6.5 million of a restricted term deposit are not subject to recurring fair value measurement and therefore excluded from this table. However, these balances are included within the $1.2 billion of restricted cash and cash equivalents and restricted short-term investments on the consolidated balance sheets. December 31, 2019 Level 1 Level 2 Level 3 Total Unrestricted Balances (1) Certificates of deposit $ — $ 1,276,594 $ — $ 1,276,594 Commercial paper — 876,495 — 876,495 Corporate bonds — 247,578 — 247,578 Total unrestricted cash equivalents and short-term investments — 2,400,667 — 2,400,667 Restricted Balances (2) Money market funds 19,250 — — 19,250 Certificates of deposit — 608,828 — 608,828 Commercial paper — 791,155 — 791,155 Corporate bonds — 75,908 — 75,908 Total restricted cash equivalents and investments 19,250 1,475,891 — 1,495,141 Total unrestricted and restricted cash equivalents and investments $ 19,250 $ 3,876,558 $ — $ 3,895,808 _______________ (1) $96.9 million of cash, $217.5 million of money market deposit accounts and $135.0 million of term deposits are not subject to recurring fair value measurement and therefore excluded from this table. However, these balances are included within the $2.9 billion of cash and cash equivalents and short-term investments on the consolidated balance sheets. (2) $56.4 million of restricted cash, $7.9 million of a money market deposit account and $7.8 million of a restricted term deposit are not subject to recurring fair value measurement and therefore excluded from this table. However, these balances are included within the $1.6 billion of restricted cash and cash equivalents and restricted short-term investments on the consolidated balance sheets. The fair value of the Company’s Level 1 financial instruments is based on quoted market prices for identical instruments. The fair value of the Company’s Level 2 fixed income securities is obtained from an independent pricing service, which may use quoted market prices for identical or comparable instruments or model driven valuations using observable market data or inputs corroborated by observable market data. Level 3 instrument valuations are valued based on unobservable inputs and other estimation techniques due to the absence of quoted market prices, inherent lack of liquidity and the long-term nature of such financial instruments. During the year ended December 31, 2020, the Company did not make any transfers between the levels of the fair value hierarchy. Financial Instruments Measured at Fair Value on a Non-Recurring Basis In March 2020, the Company purchased a non-marketable equity security for total cash consideration of $10.0 million that is classified in other investments on the consolidated balance sheets. The non-marketable equity security will be remeasured to fair value upon the occurrence of observable transactions for an identical or similar investments of the same issuer or impairment. As of December 31, 2020, there were no remeasurement adjustments.

Leases

Leases	12 Months Ended
	Dec. 31, 2020
Leases [Abstract]
Leases	Leases Real Estate Operating Leases The Company leases real estate property at approximately 86 locations with 85 commenced leases and one not yet commenced lease having an initial term of 12 months or longer as of December 31, 2020. These leases are classified as operating leases. As of December 31, 2020, the remaining lease terms vary from one month to nine years. For certain leases the Company has options to extend the lease term for periods varying from one Flexdrive Program The Company operates a fleet of rental vehicles through Flexdrive, a portion of which are leased from third-party vehicle leasing companies. These leases are classified as finance leases and are included in property and equipment, net on the consolidated balance sheet. As of December 31, 2020, the remaining lease terms vary between one month to four years. These leases generally do not contain any non-lease components and, as such, all payments due under these arrangements are allocated to the respective lease component. Lease Position as of December 31, 2020 The table below presents the lease-related assets and liabilities recorded on the consolidated balance sheet (in thousands, except for remaining lease terms and percentages): December 31, 2020 December 31, 2019 Operating Leases Assets Operating lease right-of-use assets $ 275,756 $ 441,258 Liabilities Operating lease liabilities, current $ 49,291 $ 94,199 Operating lease liabilities, non-current 265,803 382,077 Total operating lease liabilities $ 315,094 $ 476,276 Finance Leases Assets Finance lease right-of-use assets (1) $ 28,108 $ — Liabilities Finance lease liabilities, current (2) 20,795 — Finance lease liabilities, non-current (3) 6,593 — Total finance lease liabilities $ 27,388 $ — Weighted-average remaining lease term (years) Operating leases 6.3 5.6 Finance leases 1.5 — Weighted-average discount rate Operating leases 6.4 % 6.6 % Finance leases 4.7 % — % _______________ (1) This balance is included within property and equipment, net on the consolidated balance sheets and was primarily related to leases acquired in the Flexdrive transaction. Refer to Note 3 "Acquisitions" to the consolidated financial statements for information regarding this transaction. (2) This balance is included within other current liabilities on the consolidated balance sheets and was primarily related to leases acquired in the Flexdrive transaction. Refer to Note 3 "Acquisitions" to the consolidated financial statements for information regarding this transaction. (3) This balance is included within other liabilities on the consolidated balance sheets and was primarily related to leases acquired in the Flexdrive transaction. Refer to Note 3 "Acquisitions" to the consolidated financial statements for information regarding this transaction. Lease Costs The table below presents certain information related to the lease costs for operating leases for the year ended December 31, 2020 (in thousands): Year Ended December 31, 2020 2019 Operating Leases Operating lease cost $ 73,177 $ 115,419 Finance Leases Amortization of right-of-use assets 35,005 — Interest on lease liabilities 1,980 — Other Lease Costs Short-term lease cost 4,664 4,670 Variable lease cost (1) 14,955 16,660 Total lease cost $ 129,781 $ 136,749 _______________ (1) Consist primarily of common-area maintenance, taxes and utilities for real estate leases, and certain vehicle related charges under the Flexdrive program. Rent expense related to noncancelable real estate operating leases was $33.7 million during the year ended December 31, 2018. Sublease income was immaterial. The table below presents certain supplemental information related to the cash flows for operating and finance leases recorded on the consolidated statements of cash flows (in thousands): Year Ended December 31, 2020 2019 Cash paid for amounts included in the measurement of lease liabilities Operating cash flows from operating leases $ 67,825 $ 111,152 Operating cash flows from finance leases 1,980 — Financing cash flows from finance leases 41,682 — Undiscounted Cash Flows The table below reconciles the undiscounted cash flows for each of the first five years and total of the remaining years to the lease liabilities recorded on the consolidated balance sheet as of December 31, 2020 (in thousands): Operating Leases Finance Leases Total Leases 2021 $ 72,283 $ 21,128 $ 93,411 2022 73,242 4,409 77,651 2023 56,942 1,290 58,232 2024 52,204 1,139 53,343 2025 42,377 — 42,377 Thereafter 97,284 — 97,284 Total minimum lease payments 394,332 27,966 422,298 Less: amount of lease payments representing interest (79,238) (578) (79,816) Present value of future lease payments 315,094 27,388 342,482 Less: current obligations under leases (49,291) (20,795) (70,086) Long-term lease obligations $ 265,803 $ 6,593 $ 272,396 As of December 31, 2020, the Company had one real estate lease that had not yet commenced. The lease is expected to commence in 2021 with a lease term of one year.
Leases	Leases Real Estate Operating Leases The Company leases real estate property at approximately 86 locations with 85 commenced leases and one not yet commenced lease having an initial term of 12 months or longer as of December 31, 2020. These leases are classified as operating leases. As of December 31, 2020, the remaining lease terms vary from one month to nine years. For certain leases the Company has options to extend the lease term for periods varying from one Flexdrive Program The Company operates a fleet of rental vehicles through Flexdrive, a portion of which are leased from third-party vehicle leasing companies. These leases are classified as finance leases and are included in property and equipment, net on the consolidated balance sheet. As of December 31, 2020, the remaining lease terms vary between one month to four years. These leases generally do not contain any non-lease components and, as such, all payments due under these arrangements are allocated to the respective lease component. Lease Position as of December 31, 2020 The table below presents the lease-related assets and liabilities recorded on the consolidated balance sheet (in thousands, except for remaining lease terms and percentages): December 31, 2020 December 31, 2019 Operating Leases Assets Operating lease right-of-use assets $ 275,756 $ 441,258 Liabilities Operating lease liabilities, current $ 49,291 $ 94,199 Operating lease liabilities, non-current 265,803 382,077 Total operating lease liabilities $ 315,094 $ 476,276 Finance Leases Assets Finance lease right-of-use assets (1) $ 28,108 $ — Liabilities Finance lease liabilities, current (2) 20,795 — Finance lease liabilities, non-current (3) 6,593 — Total finance lease liabilities $ 27,388 $ — Weighted-average remaining lease term (years) Operating leases 6.3 5.6 Finance leases 1.5 — Weighted-average discount rate Operating leases 6.4 % 6.6 % Finance leases 4.7 % — % _______________ (1) This balance is included within property and equipment, net on the consolidated balance sheets and was primarily related to leases acquired in the Flexdrive transaction. Refer to Note 3 "Acquisitions" to the consolidated financial statements for information regarding this transaction. (2) This balance is included within other current liabilities on the consolidated balance sheets and was primarily related to leases acquired in the Flexdrive transaction. Refer to Note 3 "Acquisitions" to the consolidated financial statements for information regarding this transaction. (3) This balance is included within other liabilities on the consolidated balance sheets and was primarily related to leases acquired in the Flexdrive transaction. Refer to Note 3 "Acquisitions" to the consolidated financial statements for information regarding this transaction. Lease Costs The table below presents certain information related to the lease costs for operating leases for the year ended December 31, 2020 (in thousands): Year Ended December 31, 2020 2019 Operating Leases Operating lease cost $ 73,177 $ 115,419 Finance Leases Amortization of right-of-use assets 35,005 — Interest on lease liabilities 1,980 — Other Lease Costs Short-term lease cost 4,664 4,670 Variable lease cost (1) 14,955 16,660 Total lease cost $ 129,781 $ 136,749 _______________ (1) Consist primarily of common-area maintenance, taxes and utilities for real estate leases, and certain vehicle related charges under the Flexdrive program. Rent expense related to noncancelable real estate operating leases was $33.7 million during the year ended December 31, 2018. Sublease income was immaterial. The table below presents certain supplemental information related to the cash flows for operating and finance leases recorded on the consolidated statements of cash flows (in thousands): Year Ended December 31, 2020 2019 Cash paid for amounts included in the measurement of lease liabilities Operating cash flows from operating leases $ 67,825 $ 111,152 Operating cash flows from finance leases 1,980 — Financing cash flows from finance leases 41,682 — Undiscounted Cash Flows The table below reconciles the undiscounted cash flows for each of the first five years and total of the remaining years to the lease liabilities recorded on the consolidated balance sheet as of December 31, 2020 (in thousands): Operating Leases Finance Leases Total Leases 2021 $ 72,283 $ 21,128 $ 93,411 2022 73,242 4,409 77,651 2023 56,942 1,290 58,232 2024 52,204 1,139 53,343 2025 42,377 — 42,377 Thereafter 97,284 — 97,284 Total minimum lease payments 394,332 27,966 422,298 Less: amount of lease payments representing interest (79,238) (578) (79,816) Present value of future lease payments 315,094 27,388 342,482 Less: current obligations under leases (49,291) (20,795) (70,086) Long-term lease obligations $ 265,803 $ 6,593 $ 272,396 As of December 31, 2020, the Company had one real estate lease that had not yet commenced. The lease is expected to commence in 2021 with a lease term of one year.

Commitment and Contingencies

Commitment and Contingencies	12 Months Ended
	Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Noncancelable Purchase Commitments In March 2018, the Company entered into a noncancelable arrangement with a web-hosting services provider under which the Company had an obligation to purchase a minimum amount of services from this vendor through June 2021. In January 2019 and May 2020, the parties modified the aggregate commitment amounts and timing. Under the amended arrangement, the Company committed to spend an aggregate of at least $300 million between January 2019 and June 2022, with a minimum amount of $80 million in each of the three contractual periods, on services with this vendor. The Company has made payments totaling $240.6 million under the amended arrangement as of December 31, 2020. In November 2018, the Company completed the acquisition of Motivate, a New York headquartered bikeshare company. Over the approximately five years following the transaction, the Company committed to invest an aggregate of $100.0 million in the bikeshare program for the New York metro area. The Company also assumed certain pre-existing contractual obligations to increase the bike fleets in other locations which are not considered to be material. The Company has made investments totaling $46.9 million as of December 31, 2020. In May 2019, the Company entered into a noncancelable arrangement with the City of Chicago, with respect to the Divvy bike share program, under which the Company has an obligation to pay approximately $7.5 million per year to the City of Chicago through January 2028 and to spend a minimum of $50 million on capital equipment for the bike share program through January 2023. The Company has made payments totaling $15.0 million and investments totaling $19.7 million as of December 31, 2020. As of December 31, 2020, the future minimum payments under the Company’s noncancelable purchase commitments were as follows (in thousands) : 2021 $ 27,990 2022 130,514 2023 36,519 2024 8,800 2025 9,092 Thereafter 19,107 Total future minimum payments $ 232,022 Letters of Credit The Company maintains certain stand-by letters of credit from third-party financial institutions in the ordinary course of business to guarantee certain performance obligations related to leases, insurance policies and other various contractual arrangements. The outstanding letters of credit are collateralized by cash. As of December 31, 2020 and 2019, the Company had letters of credit outstanding of $54.2 million and $55.2 million, respectively. Indemnification The Company enters into indemnification provisions under agreements with other parties in the ordinary course of business, including certain business partners, investors, contractors and the Company’s officers, directors and certain employees. The Company has agreed to indemnify and defend the indemnified party’s claims and related losses suffered or incurred by the indemnified party resulting from actual or threatened third-party claims because of the Company’s activities or, in some cases, non-compliance with certain representations and warranties made by the Company. It is not possible to determine the maximum potential loss under these indemnification provisions due to the Company’s limited history of prior indemnification claims and the unique facts and circumstances involved in each particular provision. To date, losses recorded in the consolidated statements of operations in connection with the indemnification provisions have not been material. Legal Proceedings The Company is currently involved in, and may in the future be involved in, legal proceedings, claims, regulatory inquiries, and governmental investigations in the ordinary course of business, including suits by drivers, riders, renters, or third parties (individually or as class actions) alleging, among other things, various wage and expense related claims, violations of state or federal laws, improper disclosure of the Company’s fees, rules or policies, that such fees, rules or policies violate applicable law, or that the Company has not acted in conformity with such fees, rules or policies, as well as proceedings related to product liability, its acquisitions, securities issuances or business practices, or public disclosures about the business. In addition, the Company has been, and is currently, named as a defendant in a number of litigation matters related to accidents or other trust and safety incidents involving drivers or riders using the Lyft Platform. The outcomes of the Company’s legal proceedings are inherently unpredictable and subject to significant uncertainties. For some matters for which a material loss is reasonably possible, an estimate of the amount of loss or range of losses is not possible nor is the Company able to estimate the loss or range of losses that could potentially result from the application of nonmonetary remedies. Until the final resolution of legal matters, there may be an exposure to a material loss in excess of the amount recorded. Independent Contractor Classification Matters With regard to independent contractor classification of drivers on the Lyft Platform, the Company is regularly subject to claims, lawsuits, arbitration proceedings, administrative actions, government investigations and other legal and regulatory proceedings at the federal, state and municipal levels challenging the classification of these drivers as independent contractors, and claims that, by the alleged misclassification, the Company has violated various labor and other laws that would apply to driver employees. Laws and regulations that govern the status and classification of independent contractors are subject to change and divergent interpretations by various authorities, which can create uncertainty and unpredictability for the Company. For example, Assembly Bill 5 (as codified in part at Cal. Labor Code sec. 2750.3) codified and extended an employment classification test set forth by the California Supreme Court that established a new standard for determining employee or independent contractor status. The passage of this bill led to additional challenges to the independent contractor classification of drivers using the Lyft Platform. For example, on May 5, 2020, the California Attorney General and the City Attorneys of Los Angeles, San Diego, and San Francisco filed a lawsuit against the Company and Uber for allegedly misclassifying drivers on the companies’ respective platforms as independent contractors in violation of Assembly Bill 5 and California’s Unfair Competition Law, and on August 5, 2020, the California Labor Commissioner filed lawsuits against the Company and Uber for allegedly misclassifying drivers on the companies’ respective platforms as independent contractors, seeking injunctive relief and material damages and penalties. On June 25, 2020, the California Attorney General and the City Attorneys of Los Angeles, San Diego, and San Francisco filed a motion for preliminary injunction against the Company and Uber. On August 10, 2020, the court granted the motion for a preliminary injunction, forcing the Company and Uber to reclassify drivers in California as employees until the end of the lawsuit. On August 12, 2020, the Company filed a notice of appeal of the court's order and on August 20, 2020, the California Court of Appeal stayed the preliminary injunction pending resolution of the appeal. The Court of Appeal affirmed the preliminary injunction on October 22, 2020. Subsequently, voters in California approved Proposition 22, a state ballot initiative that provides a framework for drivers utilizing platforms like Lyft to maintain their status as independent contractors under California law, and Proposition 22 went into effect on December 16, 2020. The Company filed a petition for rehearing of its appeal with the California Court of Appeal on November 6, 2020, which was denied on November 20, 2020. On December 1, 2020, the Company filed a petition for review with the California Supreme Court, which was denied on February 10, 2021. The case will now proceed in San Francisco Superior Court. On January 12, 2021, a lawsuit was filed in the California Supreme Court against the State of California alleging that Proposition 22 violates the California Constitution. The Supreme Court denied review on February 3, 2021. Plaintiffs then filed a similar lawsuit in Alameda County Superior Court on February 12, 2021. Separately, on July 14, 2020, the Massachusetts Attorney General filed a lawsuit against the Company and Uber for allegedly misclassifying drivers as independent contractors under Massachusetts law, and seeking declaratory and injunctive relief. Certain adverse outcomes of such actions would have a material impact on the Company’s business, financial condition and results of operations, including damages, penalties and potential suspension of operations in impacted jurisdictions, including California. The Company’s chances of success on the merits are still uncertain and any possible loss or range of loss cannot be reasonably estimated. Such regulatory scrutiny or action may create different or conflicting obligations from one jurisdiction to another. The Company is currently involved in a number of putative class actions, thousands of individual claims, including those brought in arbitration or compelled pursuant to the Company's Terms of Service to arbitration, matters brought, in whole or in part, as representative actions under California’s Private Attorney General Act, Labor Code Section 2698, et seq., alleging that the Company misclassified drivers as independent contractors and other matters challenging the classification of drivers on the Company’s platform as independent contractors. The Company is currently defending allegations in a number of lawsuits that the Company has failed to properly classify drivers and provide those drivers with sick leave and related benefits during the COVID-19 pandemic. The Company’s chances of success on the merits are still uncertain and any possible loss or range of loss cannot be reasonably estimated. The Company disputes any allegations of wrongdoing and intends to continue to defend itself vigorously in these matters. However, results of litigation, arbitration and regulatory actions are inherently unpredictable and legal proceedings related to these driver claims, individually or in the aggregate, could have a material impact on the Company’s business, financial condition and results of operations. Regardless of the outcome, litigation and arbitration of these matters can have an adverse impact on the Company because of defense and settlement costs individually and in the aggregate, diversion of management resources and other factors. Unemployment Insurance Assessment The Company is involved in administrative audits with various state employment agencies, including audits related to driver classification, in California, Connecticut, Oregon, Wisconsin, Illinois and New Jersey. The Company believes that drivers are properly classified as independent contractors and plans to vigorously contest any adverse assessment or determination. The Company’s chances of success on the merits are still uncertain and any possible loss or range of loss cannot be reasonably estimated. Indirect Taxes The Company is under audit by various domestic tax authorities with regard to indirect tax matters. The subject matter of indirect tax audits primarily arises from disputes on tax treatment and tax rates applied to the sale of the Company’s services in these jurisdictions. The Company accrues indirect taxes that may result from examinations by, or any negotiated agreements with, these tax authorities when a loss is probable and reasonably estimable and the expense is recorded to general and administrative expenses. Patent Litigation The Company is currently involved in legal proceedings related to alleged infringement of patents and other intellectual property and, in the ordinary course of business, the Company receives correspondence from other purported holders of patents and other intellectual property offering to license such property and/or asserting infringement of such property. The Company disputes any allegation of wrongdoing and intends to defend itself vigorously in these matters. The Company’s chances of success on the merits are still uncertain and any possible loss or range of loss cannot be reasonably estimated. Consumer and Other Class Actions The Company is involved in a number of class actions alleging violations of consumer protection laws such as the Telephone Consumer Protection Act of 1991, or TCPA, as well as violations of other laws such as the Americans with Disabilities Act, or the ADA, seeking injunctive or other relief. The Company disputes any allegations of wrongdoing and intends to continue to defend itself vigorously in these matters. The Company’s chances of success on the merits are still uncertain and any possible loss or range of loss cannot be reasonably estimated. Personal Injury and Other Safety Matters In the ordinary course of the Company’s business, various parties have from time to time claimed, and may claim in the future, that the Company is liable for damages related to accidents or other incidents involving drivers, riders or renters using or who have used services offered on the Lyft Platform, as well as from third parties. The Company is currently named as a defendant in a number of matters related to accidents or other incidents involving drivers on the Lyft Platform, other riders, renters and third parties. The Company believes it has meritorious defenses, disputes the allegations of wrongdoing and intends to defend itself vigorously in these matters. There is no pending or threatened legal proceeding that has arisen from these accidents or incidents that individually, in the Company’s opinion, is likely to have a material impact on its business, financial condition or results of operations; however, results of litigation and claims are inherently unpredictable and legal proceedings related to such accidents or incidents, in the aggregate, could have a material impact on the Company’s business, financial condition and results of operations. For example, on January 17, 2020, the Superior Court of California, County of Los Angeles, granted the petition of multiple plaintiffs to coordinate their claims relating to alleged sexual assault or harassment by drivers on the Lyft Platform, and a Judicial Council Coordinated Proceeding has been created before the Superior Court of California, County of San Francisco, where the claims of these and other plaintiffs are currently pending. Regardless of the outcome, litigation can have an adverse impact on the Company because of defense and settlement costs individually and in the aggregate, diversion of management resources and other factors. Securities Litigation Beginning in April 2019, multiple putative class actions and derivative actions have been filed in state and federal courts against the Company, its directors, certain of its officers, and certain of the underwriters named in the IPO Registration Statement alleging violation of securities laws, breach of fiduciary duties, and other causes of action in connection with the IPO. The putative class actions have been consolidated into two putative class actions, one in California state court and the other in federal court. The derivative actions have also been consolidated into one action in federal court in California. On July 1, 2020, the California state court sustained in part and overruled in part the Company’s demurrer to the consolidated complaint. The Company filed its answer to this consolidated complaint on August 3, 2020. On February 26, 2021, the California state court struck additional allegations from the consolidated complaint and granted plaintiffs leave to amend. The parties are litigating the plaintiffs’ motion to certify a class action. On May 14, 2020, the Company filed a motion to dismiss the consolidated complaint in the California federal court putative class action, and on September 8, 2020, the federal court granted in part and denied in part that motion. The Company filed its answer to this consolidated complaint on October 2, 2020, and the parties are litigating the plaintiff’s motion to certify a class action. A joint stipulation to stay the consolidated derivative action was filed by the parties in the California federal court. The Company believes these lawsuits are without merit and intends to vigorously defend against them. The Company’s chances of success on the merits are still uncertain and any possible loss or range of loss cannot be reasonably estimated.

Debt

Debt	12 Months Ended
	Dec. 31, 2020
Debt Disclosure [Abstract]
Debt	Debt Outstanding debt obligations as of December 31, 2020 were as follows (in thousands): Maturities Interest Rate December 31, 2020 Convertible senior notes May 2025 1.50% $ 568,744 Non-revolving Loan (1) 2020 - 2023 2.91% - 5.25% 103,305 Master Vehicle Loan (1) 2020 - 2022 2.70% - 6.75% 7,947 Total long-term debt, including current maturities (2) $ 679,996 Less: long-term debt maturing within one year (35,760) Total long-term debt $ 644,236 _______________ (1) These loans were acquired as part of the Flexdrive acquisition on February 7, 2020. (2) The Company had no debt as of December 31, 2019. The following table sets forth the primary components of interest expense as reported on the consolidated statements of operations (in thousands): Year Ended December 31, 2020 2019 2018 Contractual interest expense related to the 2025 Notes $ 7,008 $ — $ — Amortization of debt discount and issuance costs 21,050 — — Interest expense related to vehicle loans 4,620 — — Interest expense $ 32,678 $ — $ — Convertible Senior Notes In May 2020, the Company issued $747.5 million aggregate principal amount of 1.50% convertible senior notes due 2025 (the "2025 Notes") pursuant to an indenture, dated May 15, 2020 (the "Indenture"), between the Company and U.S. Bank National Association, as trustee. The 2025 Notes were offered and sold pursuant to a purchase agreement (the "Purchase Agreement") with J.P. Morgan Securities LLC and Credit Suisse Securities (USA) LLC, as representatives of the several initial purchasers (the "Initial Purchasers") in a private placement to qualified institutional buyers pursuant to Rule 144A under the Securities Act of 1933, as amended (the “Securities Act”). The 2025 Notes mature on May 15, 2025, unless earlier converted, redeemed or repurchased. The 2025 Notes are senior unsecured obligations of the Company with interest payable semiannually in arrears on May 15 and November 15 of each year, beginning on November 15, 2020, at a rate of 1.50% per year. The net proceeds from this offering were approximately $733.2 million, after deducting the Initial Purchasers’ discounts and commissions and debt issuance costs. The conversion rate for the 2025 Notes is 26.0491 shares of the Company's Class A Common Stock per $1,000 principal amount of 2025 Notes, which is equivalent to an initial conversion price of approximately $38.39 per share of the Class A Common Stock. The initial conversion price of the 2025 Notes represents a premium of approximately 30% to the $29.53 per share closing price of the Company's Class A Common Stock on The Nasdaq Global Select Market on May 12, 2020. The conversion rate is subject to adjustment under certain circumstances in accordance with the terms of the Indenture. The 2025 Notes will be convertible at the option of the holders at any time prior to the close of business on the business day immediately preceding February 15, 2025, only under the following circumstances: • during any fiscal quarter commencing after the fiscal quarter ending on September 30, 2020 (and only during such fiscal quarter), if the last reported sale price of the Company’s Class A Common Stock, for at least 20 trading days (whether or not consecutive) during a period of 30 consecutive trading days ending on, and including, the last trading day of the immediately preceding fiscal quarter is greater than or equal to 130% of the conversion price on each applicable trading day; • during the five • if the Company calls such Notes for redemption, at any time prior to the close of business on the second scheduled trading day immediately preceding the redemption date; or • upon the occurrence of specified corporate events. On or after February 15, 2025, the 2025 Notes will be convertible at the option of the holder until the close of business on the second scheduled trading day immediately preceding the maturity date. Upon conversion, the Company may satisfy its conversion obligation by paying and/or delivering, as the case may be, cash, shares of the Company's Class A Common Stock or a combination of cash and shares of the Company's Class A Common Stock, at the Company’s election, in the manner and subject to the terms and conditions provided in the Indenture. Holders of the 2025 Notes who convert their 2025 Notes in connection with certain corporate events that constitute a make-whole fundamental change (as defined in the Indenture) are, under certain circumstances, entitled to an increase in the conversion rate. Additionally in the event of a corporate event constituting a fundamental change (as defined in the Indenture), holders of the 2025 Notes may require us to repurchase all or a portion of their 2025 Notes at a repurchase price equal to 100% of the principal amount of the Notes being repurchased, plus any accrued and unpaid interest to, but excluding, the repurchase date. In accounting for the issuance of the 2025 Notes, the Company separated the 2025 Notes into a liability and an equity component. At the date of issuance, the Company determined the fair value of the liability component to be $558.3 million calculated as the present value of future cash flows discounted at the borrowing rate for a similar nonconvertible debt instrument. The equity component representing the conversion option was $189.2 million and was determined by deducting the fair value of the liability component from the par value of the 2025 Notes. The equity component is not remeasured as long as it continues to meet the conditions for equity classification. The difference between the principal amount of the 2025 Notes and the liability component ("debt discount") is amortized to interest expense over the contractual term at an effective interest rate of 8.0%. Debt issuance costs related to the 2025 Notes totaled $14.3 million and was comprised of discounts and commissions payable to the Initial Purchasers and third-party offering costs. The Company allocated the total amount incurred to the liability and equity components of the 2025 Notes based on their relative values. Issuance costs attributable to the liability component were $10.7 million and will be amortized to interest expense using the effective interest method over the contractual term. Issuance costs attributable to the equity component were netted with the equity component in stockholders’ equity. Based on the Company’s closing stock price on December 31, 2020 , the if-converted value of the 2025 Notes was $956.6 million, exceeding the outstanding principal amount. The net carrying amounts of the liability component of the 2025 Notes were as follows (in thousands): December 31, 2020 Principal $ 747,500 Unamortized debt discount and debt issuance costs (178,756) Net carrying amount of liability component $ 568,744 As of December 31, 2020 , the total estimated fair values (which represents a Level 2 valuation) of the 2025 Notes were approximately $1.1 billion. The estimated fair value of the 2025 Notes was determined based on a market approach which was determined based on the actual bids and offers of the 2025 Notes in an over-the-counter market on the last trading day of the period. The 2025 Notes are unsecured and do not contain any financial covenants, restrictions on dividends, incurrence of senior debt or other indebtedness, or restrictions on the issuance or repurchase of securities by the Company. Capped Calls In connection with the issuance of the 2025 Notes, the Company entered into privately negotiated capped call transactions (the “Capped Calls”) with certain of the Initial Purchasers or their respective affiliates (the "option counterparties") at a cost of approximately $132.7 million. The Capped Calls cover, subject to anti-dilution adjustments, the number of shares of Class A Common Stock underlying the 2025 Notes sold in the offering. By entering into the Capped Calls, the Company expects to reduce the potential dilution to its common stock (or, in the event a conversion of the 2025 Notes is settled in cash, to reduce its cash payment obligation) in the event that at the time of conversion of the 2025 Notes its common stock price exceeds the conversion price of the 2025 Notes. The cap price of the Capped Calls will initially be $73.83 per share, which represents a premium of 150% over the last reported sale price of the Company's Class A Common Stock of $29.53 per share on The Nasdaq Global Select Market on May 12, 2020, and is subject to certain adjustments under the terms of the Capped Calls. The Capped Calls meet the criteria for classification in equity, are not remeasured each reporting period and included as a reduction to additional paid-in-capital within shareholders’ equity. Non-revolving Loan Following the acquisition of Flexdrive by the Company on February 7, 2020, Flexdrive remained responsible for its obligations under a Loan and Security Agreement dated March 11, 2019, as amended (the “Non-revolving Loan”) with a third-party lender. Pursuant to the term of the Non-revolving Loan, Flexdrive may request an extension of credit in the form of advances up to a maximum principal amount of $300 million to purchase new Hyundai and Kia vehicles, or for other purposes, subject to approval by the lender. Advances paid or prepaid under the Non-revolving Loan may not be reborrowed. Repayment terms for each advance include equal monthly installments sufficient to fully amortize the advances over the term, with an option for the final installment to be greater than the others. The repayment term for each advance ranges from 24 months to a maximum term of 48 months. Interest is payable monthly in arrears at a fixed interest rate equal to the one-month LIBOR plus a spread on the date of the loan which ranges from 2.68% for an advance with a 24 month term and 2.88% for an advance with a 48 month term. The Non-revolving Loan is secured by all vehicles financed under the Non-revolving Loan. The Non-revolving Loan also contains customary affirmative and negative covenants that, among other things, limit Flexdrive’s ability to enter into certain acquisitions or consolidations or engage in certain asset dispositions. Upon the occurrence of certain events of default, including bankruptcy and insolvency events with respect to Flexdrive or the Company, all amounts due under the Non-revolving Loan may become immediately due and payable, among other remedies. As of December 31, 2020 , the Company was in compliance with all covenants related to the Non-revolving Loan. Further, the Company continued to guarantee the payments of Flexdrive for any amounts borrowed following the acquisition. Master Vehicle Loan Following the acquisition of Flexdrive by the Company on February 7, 2020, Flexdrive remained responsible for its obligations under a Master Vehicle Acquisition Financing and Security Agreement, dated February 7, 2020 as amended (the “Master Vehicle Loan”) with a third-party lender. Pursuant to the term of the Master Vehicle Loan, Flexdrive may request loans up to a maximum principal amount of $50 million to purchase vehicles. Repayment terms for each loan include equal monthly installments sufficient to amortize the loan over the term, with an option for the final installment to be greater than the others and is typically equal to the residual value guarantee the Company provides to the lender. The repayment term for each loan ranges from a minimum term of 12 months to a maximum term of 48 months. Interest is payable monthly in advance at a fixed interest rate equal to the three-year swap rate plus a spread of 2.10% on the date of the loan. Principal amounts outstanding related to the Master Vehicle Loan may be fully or partially prepaid at the option of Flexdrive and must be prepaid under certain circumstances. However, if a loan is terminated for any reason prior to the last day of the minimum loan term Flexdrive will be obligated to pay to the lender, an early termination fee in an amount which is equal to the interest which would otherwise be payable by Flexdrive to lender for the remainder of the minimum loan term for that loan. The Master Vehicle Loan is secured by all vehicles financed under the Master Vehicle Loan as well as certain amounts held in escrow for the benefit of the lender. Amounts held in escrow are recorded as restricted cash in the consolidated balance sheet. The Master Vehicle Loan contains customary affirmative and negative covenants that, among other things, limit Flexdrive’s ability to enter into certain acquisitions or consolidations or engage in certain asset dispositions. Upon the occurrence of certain events of default, including bankruptcy and insolvency events with respect to Flexdrive or the Company, all amounts due under the Master Vehicle Loan may become immediately due and payable, among other remedies. As of December 31, 2020, Flexdrive was in compliance with all covenants related to the Master Vehicle Loan in all material respects. Further, the Company continued to guarantee the payments of Flexdrive for any amounts borrowed following the acquisition. The fair values of the Non-revolving Loan and Master Vehicle Loan were $105.3 million and $8.0 million, respectively, as of December 31, 2020 and were determined based on quoted prices in markets that are not active, which is considered a Level 2 valuation input. Maturities of long-term debt outstanding, including current maturities, as of December 31, 2020 were as follows (in thousands): 2021 $ 35,789 2022 54,309 2023 21,066 2024 88 2025 568,744 Thereafter — Total long-term debt outstanding $ 679,996 Vehicle Procurement Agreement Following the acquisition of Flexdrive by the Company on February 7, 2020, Flexdrive remained responsible for its obligations under a Vehicle Procurement Agreement (“VPA”), as amended, with a third-party (“the Procurement Provider”). Procurement services under the VPA include purchasing and upfitting certain motor vehicles as specified by Flexdrive, providing certain fleet management services, including without limitation vehicle titling, registration and tracking services on behalf of Flexdrive. Pursuant to the terms of the VPA, Flexdrive will make the applicable payments to the Procurement Provider for the procurement services either directly or through an advance made by the Master Vehicle Loan or the Non-revolving Loan. Interest is payable on any unpaid amount based on either the base rate on corporate loans posted by at least seven of the ten largest US banks or LIBOR of interest for one month periods as set forth in The Wall Street Journal plus a spread of 3.00%, as applicable. The Procurement Provider has a security interest in vehicles purchased until the full specified payment has been indefeasibly paid. The VPA contains customary affirmative and negative covenants restricting certain activities by Flexdrive. As of December 31, 2020, the Company was in compliance with all covenants of the VPA.

Redeemable Convertible Preferre

Redeemable Convertible Preferred Stock	12 Months Ended
	Dec. 31, 2020
Temporary Equity Disclosure [Abstract]
Redeemable Convertible Preferred Stock	Redeemable Convertible Preferred StockThe Company previously issued Series Seed, Series A, Series B, Series C, Series D, Series E, Series F, Series G, Series H, and Series I redeemable convertible preferred stock prior to the IPO. Immediately prior to the completion of the IPO on April 2, 2019, all outstanding shares of the Company’s redeemable convertible preferred stock converted into an aggregate of 219.2 million shares of Class A common stock. The authorized, issued and outstanding shares, issue price, conversion price, liquidation preference, and carrying value of the Company’s redeemable convertible preferred stock as of December 31, 2018 were as follows (in thousands, except for share and per share data): December 31, 2018 Shares Authorized Shares Issued and Outstanding Issue Price Per Conversion Price Liquidation Preference Carrying Value Series Seed 6,063,921 6,063,921 $ 0.23 $ 0.23 $ 1,365 $ 1,332 Series A 8,129,364 8,129,364 0.76 0.76 $ 6,200 $ 6,180 Series B 7,067,771 7,067,771 2.10 2.10 $ 14,860 $ 14,794 Series C 14,479,445 14,479,445 4.25 4.25 $ 61,500 $ 61,440 Series D 24,674,534 24,674,534 10.13 10.13 $ 250,000 $ 249,878 Series E 47,099,094 47,099,094 19.45 19.45 $ 915,870 $ 913,810 Series F 37,263,568 37,263,568 26.79 26.79 $ 998,250 $ 991,336 Series G 18,662,127 18,662,127 32.15 32.15 $ 599,987 $ 599,715 Series H 42,771,492 42,771,492 39.75 39.75 $ 1,700,000 $ 1,699,726 Series I 21,117,584 12,964,393 47.35 47.35 $ 613,915 $ 613,836 227,328,900 219,175,709 $ 5,161,947 $ 5,152,047 The characteristics of the redeemable convertible preferred stock were as follows: Voting The holders of the redeemable convertible preferred stock had one vote for each share of common stock into which the shares of redeemable convertible preferred stock would have been converted, subject to certain limitations. Dividends The holders of redeemable convertible preferred stock were entitled to receive noncumulative dividends, when, as and if declared by the board of directors, in proportion to the original purchase price of such shares of redeemable convertible preferred stock. As of December 31, 2020, no dividends have been declared or paid. Liquidation Preference In the event of any liquidation, dissolution, or winding up of the Company, either voluntary or involuntary, the holders of the then outstanding redeemable convertible preferred stock, were entitled to receive, prior and in preference to any distribution of any of the assets of the Company to the holders of the common stock, a liquidation preference in an amount per share disclosed in the above table (as adjusted for stock splits, stock dividends, and recapitalizations) plus all declared but unpaid dividends on such shares. If the Company did not have enough assets and funds legally available for distribution to meet this requirement, all of the Company’s assets and funds available were to be distributed ratably among the holders of redeemable convertible preferred stock in proportion to the preferential amount per share each such holder was otherwise entitled to receive. Unless stockholders representing (a) a majority of the then-outstanding redeemable convertible preferred stock, voting together as a single class on an as-converted basis, (b) a majority of the Series C redeemable convertible preferred stock and Series D redeemable convertible preferred stock, voting together as a single class on an as-converted basis, (c) a majority of the Series E redeemable convertible preferred stock, voting as a separate series, (d) a majority of the Series F redeemable convertible preferred stock, voting as a separate series, (e) a majority of the Series G redeemable convertible preferred stock, voting as a separate series, (f) a majority of the Series H redeemable convertible preferred stock, voting as a separate series (provided, however, that the approval of the holders of 71% of the Series H redeemable convertible preferred stock is required under certain circumstances) and (g) a majority of the Series I redeemable convertible preferred stock, voting as a separate series, elect otherwise, a “Deemed Liquidation Event” is defined to include (i) any liquidation, dissolution, or winding up of the Company, (ii) the merger or consolidation of the Company in which the holders of capital stock of the Company outstanding immediately prior to such merger or consolidation do not continue to represent immediately following such merger or consolidation at least 50%, by voting power, of the outstanding capital stock of the resulting or surviving entity or (iii) a sale, lease, transfer or other disposition of all or substantially all of the Company’s assets or the grant of an exclusive license to all or substantially all of the Company’s intellectual property (other than to a wholly owned subsidiary of the Company). The Company previously classified its redeemable convertible preferred stock outside of stockholders’ equity (deficit) because the shares contain liquidation features that are not solely within the Company’s control. Conversion Each share of redeemable convertible preferred stock was convertible, at the option of the holder, into common stock as determined by dividing its original price per share by the conversion price in effect at the time of conversion. The initial conversion price per share of each series of redeemable convertible preferred stock was equal to its respective original price per share, as indicated in the table above. The initial conversion price per share for each series of redeemable convertible preferred stock was subject to adjustment in accordance with anti-dilution provisions contained in the Company’s Amended and Restated Certificate of Incorporation. Immediately prior to the completion of the IPO on April 2, 2019, all outstanding shares of the Company’s redeemable convertible preferred stock converted into an aggregate of 219.2 million shares of Class A common stock. Redemption No shares of redeemable convertible preferred stock were unilaterally redeemable by either the stockholders or the Company; however, the Company’s Amended and Restated Certificate of Incorporation provided that upon any liquidation event such shares were entitled to receive the applicable liquidation preference.

Common Stock and Employee Stock

Common Stock and Employee Stock Plans	12 Months Ended
	Dec. 31, 2020
Share-based Payment Arrangement [Abstract]
Common Stock and Employee Stock Plans	Common Stock and Employee Stock Plans Common Stock The Company’s amended and restated certificate of incorporation authorizes the issuance of Class A common stock and Class B common stock. The rights of the holders of Class A common stock and Class B common stock are identical, except with respect to voting and conversion. Holders of Class A common stock are entitled to one vote per share and holders of Class B common stock are entitled to 20 votes per share. Shares of Class B common stock are convertible into an equivalent number of shares of Class A common stock and generally convert into shares of Class A common stock upon transfer. Any dividends paid to the holders of Class A common stock and Class B common stock will be paid on a pro rata basis. On a liquidation event, any distribution to common stockholders is made on a pro rata basis to the holders of the Class A common stock and Class B common stock. The following table summarizes the Company’s shares of common stock reserved for issuance as of December 31, 2020: Options issued and outstanding under the 2008 Plan 1,918,596 RSUs outstanding under the 2008 Plan, the 2018 Plan, and the 2019 Plan 33,602,435 Remaining shares available for future issuance under the 2019 ESPP Plan and the 2019 Plan 66,903,373 Equity Award Plans 2008 Equity Incentive Plan In July 2008, the board of directors of the Company adopted the 2008 Equity Incentive Plan (the 2008 Plan) under which the Company may grant options to purchase its common stock and offer to sell and issue restricted shares of its common stock and issue RSUs to selected employees, officers, directors and consultants of the Company. In June 2018, this plan was superseded by the 2018 Equity Incentive Plan (the 2018 Plan) and all reserved shares under the 2008 Plan were transferred to the 2018 Plan. Under the 2008 Plan, incentive stock options and nonqualified stock options are to be granted at a price that is not less than 100% of the fair value of the underlying common stock at the date of grant; provided, that incentive stock options granted to a person who directly or by attribution owns more than ten percent (10%) of the total combined voting power of all classes of stock of the Company are to be at a price not less than one hundred ten percent (110%) of the fair value of the underlying common stock at the date of grant. Stock options granted to newly hired employees typically vest 25% on the first anniversary of the date of hire and ratably each month over the ensuing 36-month period. The maximum term for stock options granted under the 2008 Plan might not exceed ten years from the date of grant. RSUs granted to newly hired employees typically vest 25% on the first Company-established vest date after the first anniversary of the employee’s date of hire and ratably each quarter over the ensuing 12-quarter period for purposes of the service condition. The maximum term for RSUs granted under the 2008 Plan might not exceed seven years from the date of grant. 2018 Equity Incentive Plan In June 2018, the board of directors and the stockholders of the Company adopted the 2018 Plan, which serves as the successor to the 2008 Plan and provides for the grant of stock options, stock appreciation rights, restricted stock, and RSUs to employees and consultants of the Company and its subsidiaries and non-employee directors of the Company. A total of 75,504,222 shares of the Company’s common stock initially was reserved for issuance under the 2018 Plan, which was increased in June 2018 by an additional 11,836,692 shares. In addition, the shares reserved for issuance under the 2018 Plan also will include any shares subject to stock options, RSUs or similar awards granted under its 2008 Plan that, after the date the Company’s board of directors initially approved its 2018 Plan, expire or otherwise terminate without having been exercised in full, are tendered to or withheld by the Company for payment of an exercise price or for satisfying tax withholding obligations or are forfeited to or repurchased by the Company due to failure to vest (provided that the maximum number of shares that may be added to its 2018 Plan from its 2008 Plan is 75,504,222 shares). Under the 2018 Plan, RSUs granted to newly hired employees typically vest 25% on the first Company-established vest date after the first anniversary of the employee’s date of hire and ratably each quarter over the ensuing 12-quarter period for purposes of the service condition. The maximum term for RSUs granted under the 2018 Plan might not exceed seven years from the date of grant. In March 2019, this plan was superseded by the 2019 Equity Incentive Plan (the 2019 Plan) and all reserved shares under the 2018 Plan were transferred to the 2019 Plan. 2019 Equity Incentive Plan In March 2019, the board of directors of the Company and the stockholders of the Company adopted the 2019 Plan which serves as the successor to the 2018 Plan and provides for the grant of stock options, stock appreciation rights, restricted stock, and RSUs to employees and consultants of the Company and its subsidiaries and non-employee directors of the Company. RSUs granted with only service conditions under the 2019 Plan to employees generally vest in a period up to four years. A total of 44,000,000 shares of the Company’s Class A common stock were reserved for issuance pursuant to the 2019 Plan. In addition, the shares reserved for issuance under the Company’s 2019 Plan also included (i) those shares reserved but unissued under our 2018 Plan as of immediately prior to the termination of the 2018 Plan and (ii) any shares subject to stock options, RSUs or similar awards granted under the 2018 Plan or 2008 Plan that, after the date the Company’s board of directors approved the 2019 Plan, expire or otherwise terminate without having been exercised in full, are tendered to or withheld by the Company for payment of an exercise price or for satisfying tax withholding obligations or are forfeited to or repurchased by the Company due to failure to vest (provided that the maximum number of shares that may be added to the Company’s 2019 Plan pursuant to (i) and (ii) is 80,604,678 shares). The number of shares available for issuance under the 2019 Plan will be increased on January 1 of each year, beginning on January 1, 2020, in an amount equal to the least of (i) 35,000,000 shares, (ii) five percent of the outstanding shares of all classes of the Company’s common stock on the last day of the immediately preceding fiscal year or (iii) such number of shares determined by the administrator. On January 1, 2020, an additional 15,129,789 shares of Class A common stock were reserved for issuance under the 2019 Plan. The summary of stock option activity is as follows (in thousands, except per share data): Options Outstanding Number of Weighted- Weighted- Aggregate (in years) Balance as of December 31, 2019 2,957 $ 5.13 4.7 $ 112,066 Exercises (1,038) 4.50 Forfeitures — — Cancellations — — Balance as of December 31, 2020 1,919 $ 5.47 3.7 $ 86,095 There were no stock options granted during the year ended December 31, 2020 and 2019. As of December 31, 2020, all outstanding options were fully vested and exercisable. The aggregate intrinsic value of stock options exercised during the years ended December 31, 2020, 2019 and 2018 was $36.1 million, $617.4 million and $85.0 million, respectively. The aggregate intrinsic value disclosed in the above table is based on the difference between the original exercise price of the stock option and the fair value of the Company’s common stock of $49.13, $43.02 and $47.37 per share as of December 31, 2020, 2019 and 2018, respectively. In the first quarter of 2019, the Company issued 3,162,797 shares of its common stock, valued at $205.6 million, pursuant to the exercise by the Company’s co-founders of all their respective vested and outstanding options (after withholding an aggregate of 3,617,460 shares of common stock subject to such options for payment of the exercise price and satisfaction of the aggregate tax withholding obligations, totaling $223.5 million, in connection with the exercise of certain of those options). In the second quarter of 2019, these shares of common stock were reclassified into shares of Class A common stock and subsequently exchanged for shares of Class B common stock as described in Note 1 - Description of Business and Basis of Presentation - Initial Public Offering. The summary of restricted stock unit activity is as follows (in thousands, except per share data): Number of Weighted- Aggregate Nonvested units as of December 31, 2019 41,685 $ 52.06 $ 1,793,305 Granted 25,130 28.76 Vested (19,762) 43.72 Canceled (13,451) 47.03 Nonvested units as of December 31, 2020 33,602 $ 41.49 $ 1,650,577 Expected to vest as of December 31, 2020 32,047 $ 1,323,220 Included in the grants for the year ended December 31, 2020 are approximately 250,000 PSUs that have a performance criteria tied to the Company’s Adjusted EBITDA profitability target. The grant date fair value per share of the PSUs granted in the year ended December 31, 2020 was $27.14. Compensation cost associated with these PSUs are recognized based on the estimated number of shares that the Company ultimately expects will vest and amortized on a straight-line basis over the requisite service period as these PSUs consist of only one tranche. If in the future, situations indicate that it is not probable that we will achieve the performance criteria, then no further compensation cost will be recorded and any previous costs will be reversed. The fair value as of the respective vesting dates of RSUs that vested during the years ended December 31, 2020 and 2019 was $700.9 million and $1.8 billion, respectively. No RSUs vested during the year ended December 31, 2018. In connection with RSUs that vested in the year ended December 31, 2020, the Company withheld 551,372 shares and remitted tax liabilities of $20.2 million on behalf of the RSU holders to the relevant tax authorities in cash. In connection with RSUs that vested in the year ended December 31, 2019, the Company withheld 10,777,331 shares and remitted tax liabilities of $719.5 million on behalf of the RSU holders to the relevant tax authorities in cash. Effective in the fourth quarter of 2019, the Company changed the default tax withholding method for RSUs from the net settlement method to the sell-to-cover method. As a result, no shares were withheld to settle tax withholding obligations for RSUs that vested and settled in the fourth quarter of 2019. The tax withholding obligations for RSUs held by Section 16 officers of the Company that vest and settle after December 31, 2019 will revert to the net settlement method. 2019 Employee Stock Purchase Plan In March 2019, the Company’s board of directors adopted, and the Company’s stockholders approved, the 2019 Employee Stock Purchase Plan (the “ESPP”). The ESPP went into effect on March 27, 2019. Subject to any limitations contained therein, the ESPP allows eligible employees to contribute, through payroll deductions, up to 15% of their eligible compensation to purchase the Company’s Class A common stock at a discounted price per share. The ESPP provides for consecutive, overlapping 12-month offering periods, subject to certain reset provisions as defined in the plan. The initial offering period ran from March 28, 2019 through June 30, 2020. A total of 6,000,000 shares of Class A common stock were initially reserved for issuance under the ESPP and on January 1, 2020, an additional 3,025,957 shares of Class A common stock were reserved for issuance under the ESPP. As of December 31, 2020, 1,296,206 shares of Class A common stock have been purchased under the 2019 ESPP. The number of shares reserved under the 2019 ESPP will automatically increase on the first day of each calendar year beginning on January 1, 2020 in a number of shares equal to the least of (i) 7,000,000 shares of Class A common stock, (ii) one percent of the outstanding shares of all classes of the Company’s common stock on the last day of the immediately preceding fiscal year, or (iii) an amount determined by the administrator of the 2019 ESPP. Stock-Based Compensation The Company recorded stock-based compensation expense in the consolidated statements of operations for the periods indicated as follows (in thousands): Year Ended December 31, 2020 2019 2018 Cost of revenue $ 28,743 $ 81,321 $ 501 Operations and support 15,829 75,212 177 Research and development 325,624 971,941 4,107 Sales and marketing 23,385 72,046 261 General and administrative 172,226 398,791 3,531 Total stock-based compensation expense $ 565,807 $ 1,599,311 $ 8,577 In conjunction with one of the acquisitions in 2018, the Company issued 241,390 shares of restricted stock awards to executives of an acquired company with an aggregate grant-date fair value of $11.4 million. These restricted stock awards are fully vested as of the year ended December 31, 2020. The Company recorded $4.2 million, $6.0 million and $1.4 million as compensation related to these vested restricted stock awards which is included in research and development expense in the consolidated statement of operations for the years ended December 31, 2020, 2019, and 2018, respectively. As of December 31, 2020 there are no remaining unrecognized compensation costs related to unvested stock options and restricted stock awards. As of December 31, 2019 and 2018, there was $3.9 million and $9.6 million of unrecognized compensation cost related to unvested stock options and restricted stock awards, which was recognized over a weighted-average period of 0.7 years and 1.6 years, respectively. As of December 31, 2020, the total unrecognized compensation cost was $905.6 million. The Company expects to recognize this expense over the remaining weighted-average period of approximately 2.4 years. The Company recognizes compensation expense on the RSUs granted prior to the effectiveness of its IPO Registration Statement on March 28, 2019 using the accelerated attribution method. All RSUs granted after March 28, 2019 vest on the satisfaction of a service-based condition only. The Company recognizes compensation expense for such RSUs upon a straight-line basis over their requisite service periods.

Tender Offer

Tender Offer	12 Months Ended
	Dec. 31, 2020
Equity [Abstract]
Tender Offer	Tender OfferIn March 2018, the Company facilitated a tender offer whereby an existing stockholder and affiliated entities (the Purchaser) would purchase up to an aggregate of 2,207,792 shares of common stock for $38.50 per share in cash from certain equity holders (including then-current employees). The Company engaged a third-party broker to facilitate an auction process whereby the Purchaser was selected. At the time of the tender offer, the fair value of the Company’s common stock was equal to the tender offer price. Sellers holding options were permitted to cashless exercise options in connection with their participation in the tender offer. The tender offer closed in April 2018 and an aggregate of 1,523,532 shares of common stock were tendered for $58.7 million.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Income Tax	Income Taxes The components of the provision for income taxes for the periods indicated are as follows (in thousands): Year Ended December 31, 2020 2019 2018 United States $ (1,804,623) $ (2,600,858) $ (900,642) Foreign 7,232 973 (9,955) Loss before income taxes $ (1,797,391) $ (2,599,885) $ (910,597) The provision for income taxes for the periods indicated are as follows (in thousands): Year Ended December 31, 2020 2019 2018 Current provision Federal $ — $ — $ — State 1,201 2,704 1,250 Foreign 1,156 1,901 116 Total current $ 2,357 $ 4,605 $ 1,366 Deferred provision Federal (36,375) (269) — State (9,534) (891) — Foreign (982) (1,089) (628) Total deferred (46,891) (2,249) (628) Total provision for (benefit from) income taxes $ (44,534) $ 2,356 $ 738 A reconciliation of the U.S. federal statutory income tax rates to the Company’s effective tax rate is as follows: Year Ended December 31, 2020 2019 2018 Provision at federal statutory rate 21.0 % 21.0 % 21.0 % State, net of federal benefit 3.2 7.6 6.0 Permanent tax adjustments (1.0) (0.4) (0.8) Stock-based compensation 1.0 9.9 0.8 Convertible senior notes 2.7 — — Change in valuation allowance (24.0) (38.1) (27.6) Other adjustments (0.3) (0.2) 0.5 Provision for income taxes 2.6 % (0.2) % (0.1) % Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes at the enacted rates. The significant components of the Company’s deferred tax assets and liabilities as of the periods indicated were as follows (in thousands): December 31, 2020 2019 Deferred tax assets: Net operating loss carryforwards $ 1,697,745 $ 1,173,732 Insurance reserves 282,857 391,250 Accrued and other liabilities 395,425 369,018 Total deferred tax assets 2,376,027 1,934,000 Less: Valuation allowance (2,144,548) (1,751,118) Deferred tax assets, net of valuation allowance 231,479 182,882 Deferred tax liabilities: State income taxes (108,250) (92,585) Operating lease right of use assets (75,271) (88,376) Convertible senior notes (46,324) — Total deferred tax liabilities (229,845) (180,961) Net deferred tax assets $ 1,634 $ 1,921 A reconciliation of the valuation allowance is as follows (in thousands): Year Ended December 31, 2020 2019 2018 Beginning balance $ 1,751,118 $ 761,728 $ 507,274 Net changes in deferred tax assets and liabilities 393,430 989,390 254,454 Ending balance $ 2,144,548 $ 1,751,118 $ 761,728 The valuation allowance increased by $393.4 million for the year ended December 31, 2020, compared to the increase of $989.4 million for the year ended December 31, 2019. The Company believes that, based on a number of factors, the available objective evidence creates sufficient uncertainty regarding the realizability of the deferred tax assets such that a valuation allowance has been recorded. These factors include the Company’s history of net losses since its inception. As of December 31, 2020, the Company had U.S. federal, state and foreign net operating loss carryforwards of approximately $6.2 billion, $5.4 billion and $3.4 million, respectively. The federal net operating loss carryforwards generated through December 31, 2017 expire at various dates beginning in 2030 and will continue to expire through 2037, while federal net operating loss carryforwards generated in 2018 or later do not expire. The state net operating loss carryovers will begin to expire in 2022 and will continue to expire through 2039. The foreign net operating loss carryovers will begin to expire in 2037. Utilization of the net operating loss carryforwards are subject to various limitations due to the ownership change limitations provided by Internal Revenue Code (IRC) Section 382 and similar state provisions. The Company files income tax returns with the U.S. federal government, various state jurisdictions and certain foreign jurisdictions. The Company’s tax returns in all jurisdictions remain open to examination. The Company began having foreign operations in fiscal year 2017. At that time and prior to the enactment of the Tax Act, the Company had indefinite investment assertion on all of its undistributed earnings from foreign subsidiaries. As a result of the enactment of the Tax Act, the Company has reevaluated its historic assertion and continues to assert these earnings to be indefinitely reinvested. The Company’s policy is to recognize interest and penalties associated with uncertain tax benefits as part of the income tax provision and include accrued interest and penalties with the related income tax liability on the Company’s consolidated balance sheets. To date, the Company has not recognized any interest and penalties in its consolidated statements of operations, nor has it accrued for or made payments for interest and penalties. The Company has no material unrecognized tax benefits as of December 31, 2020, 2019 and 2018.

Net Loss Per Share

Net Loss Per Share	12 Months Ended
	Dec. 31, 2020
Earnings Per Share [Abstract]
Net Loss Per Share	Net Loss Per Share Basic net loss per share is computed by dividing the net loss by the weighted-average number of shares of common stock outstanding during the period, less shares subject to repurchase. The diluted net loss per share is computed by giving effect to all potentially dilutive common stock equivalents outstanding for the period. For purposes of this calculation, redeemable convertible preferred stock, stock options, RSUs, PSUs, the 2025 Notes, restricted stock awards, stock purchase rights granted under the Company’s ESPP, and early exercised stock options are considered to be common stock equivalents but are excluded from the calculation of diluted net loss per share when including them has an anti-dilutive effect. Basic and diluted net loss per share are the same for each class of common stock because they are entitled to the same liquidation and dividend rights. The following table sets forth the computation of basic and diluted net loss per share for the periods indicated (in thousands, except per share data): Year Ended December 31, 2020 2019 2018 Net loss $ (1,752,857) $ (2,602,241) $ (911,335) Weighted-average shares used in computing net loss per share, basic and diluted 312,175 227,498 21,176 Net loss per share, basic and diluted $ (5.61) $ (11.44) $ (43.04) The following potentially dilutive outstanding shares were excluded from the computation of diluted net loss per share for the periods presented because including them would have had an anti-dilutive effect, or issuance of such shares is contingent upon the satisfaction of certain conditions which were not satisfied by the end of the period (in thousands): As of December 31, 2020 2019 2018 Restricted stock units 33,428 41,685 46,433 2025 Notes (1) 19,471 — — Stock options 1,919 2,957 13,818 Performance based restricted stock units 175 — — ESPP 89 — — Restricted stock awards — 94 220 Redeemable convertible preferred stock (on an if-converted basis) — — 219,176 Early exercised options — — — Total 55,082 44,736 279,647 _______________ (1) In connection with the issuance of the 2025 Notes, the Company entered into Capped Calls, which were not included for purposes of calculating the number of diluted shares outstanding, as their effect would have been anti-dilutive. The Capped Calls are expected to reduce the potential dilution to the Company's common stock (or, in the event a conversion of the 2025 Notes is settled in cash, to reduce its cash payment obligation) in the event that at the time of conversion of the 2025 Notes the Company's common stock price exceeds the conversion price of the 2025 Notes.

Related-Party Transactions

Related-Party Transactions	12 Months Ended
	Dec. 31, 2020
Related Party Transactions [Abstract]
Related Party Transactions	Related-Party Transactions During each of the years ended December 31, 2019 and 2018, the Company purchased certain advertising-related and other services in the amount of $18.1 million and $92.4 million, respectively, from a company that is affiliated with a significant stockholder of the Company, which was recorded to cost of revenue and sales and marketing expenses in the consolidated statements of operations based on the nature of the services. This entity ceased to be a related party in April 2019. During each of the years ended December 31, 2019 and 2018, the Company purchased certain marketing services in the amount of $1.9 million and $4.0 million, respectively, from two companies owned by a significant stockholder of the Company. During the year ended December 31, 2020, the amounts purchased from these related parties as included in the consolidated statement of operations were immaterial. As of December 31, 2020, 2019 and 2018, amounts due from and to these related parties as included in the consolidated balance sheets were immaterial. The Company's remaining transactions with related parties were immaterial for the years ended December 31, 2020, 2019 and 2018.

401(k) Plan

401(k) Plan	12 Months Ended
	Dec. 31, 2020
Retirement Benefits [Abstract]
401(k) Plan	401(k) PlanThe Company adopted a 401(k) Plan that qualifies as a deferred salary arrangement under Section 401 of the IRC. Under the 401(k) Plan, participating employees may defer a portion of their pretax earnings not to exceed the maximum amount allowable. The Company does not make contributions for eligible employees.

Restructuring

Restructuring	12 Months Ended
	Dec. 31, 2020
Restructuring and Related Activities [Abstract]
Restructuring	Restructuring April 2020 Restructuring Plan In April 2020, the Company announced a restructuring plan to reduce operating expenses and adjust cash flows in light of the ongoing economic challenges resulting from the COVID-19 pandemic and its impact on the Company’s business. As a result of the restructuring plan, which was substantially completed in the second quarter of 2020, the Company recognized a stock-based compensation benefit related to the reversal of previously recognized stock-based compensation expenses for unvested stock awards, primarily related to RSUs granted prior to the effectiveness of its IPO Registration Statement on March 28, 2019 using the accelerated attribution method, of $72.7 million. This was offset by a $22.9 million charge related to the accelerated vesting of certain equity awards for employees who were terminated, resulting in a net stock-based compensation benefit of $49.8 million. Additionally, the Company recognized other restructuring charges including severance and other employee costs of $32.1 million as well as lease termination and other restructuring charges of $3.1 million. As a result of the above, the Company recognized a net restructuring benefit of $14.5 million in the year ended December 31, 2020. The following table summarizes the above restructuring related charges (benefits) by line item within the Company’s consolidated statements of operations where they were recorded in the year ended December 31, 2020 (in thousands): Stock-Based Compensation Benefit Severance and Other Employee Costs Lease Termination and Other Costs Total Cost of revenue $ (4,237) $ 2,010 $ 1,529 $ (698) Operation and support (2,830) 8,281 1,060 6,511 Research and development (37,082) 11,706 — (25,376) Sales and marketing (1,626) 3,071 — 1,445 General and administrative (4,031) 7,062 539 3,570 Total $ (49,806) $ 32,130 $ 3,128 $ (14,548) November 2020 Restructuring Plan In November 2020, the Company announced an additional restructuring plan to reduce operating expenses and adjust cash flows in light of the ongoing economic challenges resulting from the COVID-19 pandemic and its impact on the Company’s business. As a result of the restructuring plan, which was substantially completed in the fourth quarter of 2020, the Company recognized a severance and other employee costs of $1.5 million. This was offset by a stock based compensation benefit of $0.1 million due to the accelerated vesting of certain equity awards for employees who were terminated. As a result, the Company recognized net restructuring costs of $1.4 million in the year ended December 31, 2020. As of December 31, 2020, the remaining liability for restructuring related costs was immaterial.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2020
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation These consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (U.S. GAAP) and include the accounts of the Company and its wholly-owned subsidiaries. All intercompany balances and transactions have been eliminated. The Company uses the U.S. dollar predominantly as the functional currency of its foreign subsidiaries. For foreign subsidiaries where the U.S. dollar is the functional currency, gains and losses from remeasurement of foreign currency balances into U.S. dollars are included in the consolidated statements of operations. For the foreign subsidiary where the local currency is the functional currency, translation adjustments of foreign currency financial statements into U.S. dollars are recorded to a separate component of accumulated other comprehensive loss.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and reported amounts of revenues and expenses during the reporting periods. The Company bases its estimates on various factors and information which may include, but are not limited to, history and prior experience, expected future results, new related events and economic conditions, which form the basis for making judgments about the carrying value of assets and liabilities that are not readily apparent from other sources. Actual results could differ materially from those estimates. Significant items subject to estimates and assumptions include those related to losses resulting from insurance claims, fair value of financial instruments, goodwill and identifiable intangible assets, leases, indirect tax obligations, legal contingencies, valuation allowance for deferred income taxes, and the valuation of stock-based compensation. The outbreak of the coronavirus (“COVID-19”) was declared a pandemic by the World Health Organization in March 2020, and has spread throughout in the United States, Canada, and in many other countries globally. The full extent to which the Company's operations will be impacted by the COVID-19 pandemic will depend largely on future developments, which are highly uncertain and cannot be accurately predicted, including the duration of the pandemic, new information which may emerge concerning the severity of the pandemic and actions by government authorities and private businesses to contain the pandemic or respond to its impact, among other things. The Company has adopted several measures in response to the COVID-19 pandemic, including pausing our shared rides offerings, distributing thousands of bottles of hand sanitizer, masks and partitions to drivers, requiring face coverings in all rideshare trips, providing most employees with the option to work from home until September 1, 2021, restricting non-critical business travel by employees, and making adjustments to expenses and cash flow to correlate with declines in revenue. The Company carried out two restructuring events in 2020, one which involved the termination of approximately 17% of its employees, furlough of approximately 300 employees and temporary salary reductions for all exempt employees and board members. Refer to Note 17 “Restructuring” to the consolidated financial statements for information regarding these restructuring events . The Company cannot be certain that these actions will mitigate the negative effects of the pandemic on our business
Segment Information	Segment InformationOperating segments are defined as components of an entity for which separate financial information is available and that is regularly reviewed by the Chief Operating Decision Maker (“CODM”) in deciding how to allocate resources to an individual segment and in assessing performance. The Company’s Chief Executive Officer is the Company’s CODM. The CODM reviews financial information presented on a consolidated basis for purposes of making operating decisions, allocating resources, and evaluating financial performance. As such, the Company has determined that it operates as one operating segment.
Revenue Recognition, Incentive Programs and Refunds	Revenue Recognition The Company generates its revenue from its multimodal transportation networks that offer access to a variety of transportation options through the Lyft Platform and mobile-based applications. Substantially all of the Company’s revenue is generated from its ridesharing marketplace that connects drivers and riders and is recognized in accordance with Accounting Standards Codification Topic 606 (“ASC 606”). The Company also generates rental revenue from Flexdrive, its network of Light Vehicles, and Lyft Rentals, which is recognized in accordance with Accounting Standards Codification Topic 842 (“ASC 842”). The table below presents the Company's revenues as included in the consolidated statements of operations (in thousands): Year Ended December 31, 2020 2019 2018 Revenue from contracts with customers (ASC 606) $ 2,208,656 $ 3,465,473 $ 2,106,021 Rental revenue (ASC 842) 156,025 150,487 50,595 Total revenue $ 2,364,681 $ 3,615,960 $ 2,156,616 Revenue from Contracts with Customers (ASC 606) The Company recognizes revenue for its rideshare marketplace in accordance with ASC 606. The Company generates revenue from service fees and commissions (collectively, “fees”) paid by drivers for use of the Lyft Platform and related activities to connect drivers with riders to facilitate and successfully complete rides via the App where the Company operates as a TNC. The Company recognizes revenue upon completion of each ride. Drivers enter into terms of service (“ToS”) with the Company in order to use the Lyft Driver App. Under the ToS, drivers agree that the Company retains the applicable fee as consideration for their use of the Lyft Platform and related activities from the fare and related charges it collects from riders on behalf of drivers. The Company is acting as an agent in facilitating the ability for a driver to provide a transportation service to a rider. The Company reports revenue on a net basis, reflecting the fee owed to the Company from a driver as revenue, and not the gross amount collected from the rider. As the Company’s customary business practice, a contract exists between the driver and the Company when the driver’s ability to cancel the ride lapses, which typically is upon pickup of the rider. The Company’s single performance obligation in the transaction is to connect drivers with riders to facilitate the completion of a successful transportation service for riders. The Company recognizes revenue upon completion of a ride as its performance obligation is satisfied upon the completion of the ride. The Company collects the fare and related charges from riders on behalf of drivers using the rider’s pre-authorized credit card or other payment mechanism and retains its fees before making the remaining disbursement to drivers; thus the driver’s ability and intent to pay is not subject to significant judgment. The Company recognizes revenue from subscription fees paid to access transportation options through the Lyft Platform and mobile-based applications over the applicable subscription period in accordance with ASC 606. Rental Revenue (ASC 842) The Company generates rental revenues primarily from Flexdrive, its network of Light Vehicles, and Lyft Rentals. Rental revenues are recognized for rental and rental related activities where an identified asset is transferred to the customer and the customer has the ability to control that asset in accordance with ASC 842. Under the Flexdrive and Lyft Rentals programs, the Company operates a fleet of rental vehicles comprised of both vehicles owned by the Company and vehicles leased from third-party leasing companies (“head leases”). The Company either leases or subleases vehicles to drivers and Lyft Rentals renters, and as a result, the Company considers itself to be the accounting lessor or sublessor, as applicable, in these arrangements in accordance with ASC 842. Fleet operating costs include monthly fixed lease payments and other vehicle operating or ownership costs, as applicable. For vehicles that are subleased, sublease income and head lease expense for these transactions are recognized on a gross basis in the consolidated financial statements. Drivers who rent vehicles are charged rental fees, which the Company collects from the driver by deducting such amounts from the driver’s earnings on the Lyft Platform. Due to the short-term nature of the Flexdrive, Lyft Rentals, and Light Vehicle transactions, the Company classifies these rentals as operating leases. Revenue generated from single-use ride fees paid by Light Vehicle riders is recognized upon completion of each related ride. Revenue generated from Flexdrive and Lyft Rentals is recognized evenly over the rental period, which is typically seven days or less. Enterprise and Trade Receivables The Company collects any fees owed for completed transactions on the Lyft Platform primarily from the rider’s authorized payment method. Uncollected fees are included in prepaid expenses and other current assets in the consolidated balance sheets and represent receivables from (i) participants in the Company’s enterprise programs (“Enterprise Users”), where the transactions have been completed and the amounts owed from the Enterprise Users have either been invoiced or are unbilled as of the reporting date; and (ii) riders where the authorized payment method is a credit card but the fare amounts have not yet settled with third-party payment processors. Under the ToS, drivers agree that the Company retains the applicable fee as consideration for their use of the Lyft Platform and related activities from the fare and related charges it collects from riders on behalf of drivers. Accordingly, the Company has no trade receivables from drivers. The portion of the fare receivable to be remitted to drivers is included in accrued and other current liabilities in the consolidated balance sheets. The Company records an allowance for credit losses for fees owed for completed transactions that may never settle or be collected. As a result of the adoption of Accounting Standards Update No. 2016-13 “Financial Instruments—Credit Losses" (“ASC 326”), the Company’s measurement of the allowance for credit losses has been augmented to reflect the change from the incurred loss model to the expected credit loss model. The allowance for credit losses reflects the Company’s current estimate of expected credit losses inherent in the enterprise and trade receivables balance. In determining the expected credit losses, the Company considers its historical loss experience, the aging of its receivable balance, current economic and business conditions, and anticipated future economic events that may impact collectability. The Company reviews its allowance for credit losses periodically and as needed, and amounts are written off when determined to be uncollectible. Incentive Programs The Company offers incentives to attract drivers, riders, Light Vehicle riders and Lyft Rentals renters to use the Lyft Platform. Drivers generally receive cash incentives while riders, Light Vehicle riders and Lyft Rentals renters generally receive free or discounted rides under such incentive programs. Incentives provided to drivers, Light Vehicle riders and Lyft Rental renters, the customers of the Company, are accounted for as a reduction of the transaction price. As the riders are not the Company’s customers, incentives provided to riders are generally recognized as sales and marketing expense except for certain pricing programs described below. Driver Incentives The Company offers various incentive programs to drivers, including minimum guaranteed payments, volume-based discounts and performance-based bonus payments. These driver incentives are similar to retrospective volume-based rebates and represent variable consideration that is typically settled within a week. The Company reduces the transaction price by the estimated amount of the incentives expected to be paid upon completion of the performance criteria by applying the most likely outcome method. Therefore, such driver incentives are recorded as a reduction to revenue. Driver incentives are recorded as a reduction to revenue if the Company does not receive a distinct good or service in exchange for the payment or cannot reasonably estimate the fair value of the good or service received. Driver incentives for referring new drivers or riders are accounted for as sales and marketing expense. The amount recorded as an expense is the lesser of the amount of the payment or the established fair value of the benefit received. The fair value of the benefit is established using amounts paid to third parties for similar services. Rideshare Rider Incentives The Company has several rideshare rider incentive programs, which are offered to encourage rider activity on the Lyft Platform. Generally, the rider incentive programs are as follows: (i) Market-wide marketing promotions. Market-wide promotions reduce the fare charged by drivers to riders for all or substantially all rides in a specific market. This type of incentive effectively reduces the overall pricing of the service provided by drivers for that specific market and the gross fare charged by the driver to the rider, and thereby results in a lower fee earned by the Company. Accordingly, the Company records this type of incentive as a reduction to revenue at the date it records the corresponding revenue transaction. (ii) Targeted marketing promotions. Targeted marketing promotions are used to promote the use of the Lyft Platform to a targeted group of riders. An example is a promotion where the Company offers a number of discounted rides (capped at a given number of rides) which are valid only during a limited period of time to a targeted group of riders. The Company believes that the incentives that provide consideration to riders to be applied to a limited number of rides are similar to marketing coupons. These incentives differ from the market-wide marketing promotions because they do not reduce the overall pricing of the service provided by drivers for a specific market. During the promotion period, riders not utilizing an incentive would be charged the full fare. These incentives represent marketing costs. When a rider redeems the incentive, the Company recognizes revenue equal to the transaction price and the cost of the incentive is recorded as sales and marketing expense. (iii) Rider referral programs. Under the rider referral program, the referring rider (the referrer) earns referral coupons when a new rider (the referee) completes their first ride on the Lyft Platform. The Company records the incentive as a liability at the time the incentive is earned by the referrer with the corresponding charge recorded to sales and marketing expense. Referral coupons typically expire within one year. The Company estimates breakage using its historical experience. As of December 31, 2020 and 2019, the rider referral coupon liability was not material. Light Vehicle Rider and Lyft Rentals Renter Incentives Incentives offered to Light Vehicle riders and Lyft Rentals renters were not material for the years ended December 31, 2020 and 2019.
Cost of Revenue	Cost of Revenue Cost of revenue consists of costs directly related to revenue generating transactions through the Company’s multimodal platform which primarily includes insurance costs, payment processing charges, and other costs. Insurance costs consist of insurance generally required under TNC and city regulations for ridesharing and bike and scooter rentals and also includes occupational hazard insurance for drivers. Payment processing charges include merchant fees, chargebacks and failed charges. Other costs included in cost of revenue are hosting and platform-related technology costs, vehicle lease expenses, personnel-related compensation costs, depreciation, amortization of technology-related intangible assets, asset write-off charges, and gains and losses related to the sale of vehicles.
Operations and Support	Operations and Support Operations and support expenses primarily consist of personnel-related compensation costs of local operations teams and teams who provide phone, email and chat support to users, bike and scooter fleet operations support costs, driver background checks and onboarding costs, facility cost, certain car rental fleet support costs, and fees paid to third-parties providing operations support. Bike and scooter fleet operations support costs include general repairs and maintenance, and other customer support activities related to repositioning bikes and scooters for rider convenience, cleaning and safety checks.
Research and Development	Research and Development Research and development expenses primarily consist of personnel-related compensation costs and facilities costs. Such expenses include costs related to the Company’s autonomous vehicle technology initiatives. Research and development costs are expensed as incurred.
Sales and Marketing Expense	Sales and MarketingSales and marketing expenses primarily consist of rider incentives, personnel-related compensation costs, driver incentives for referring new drivers or riders, advertising expenses, rider refunds and marketing partnerships with third parties. Sales and marketing costs are expensed as incurred.
General and Administrative	General and Administrative General and administrative expenses primarily consist of personnel-related compensation costs, professional services fees, certain insurance costs that are generally not required under TNC regulations, certain loss contingency expenses including legal accruals and settlements, insurance claims administrative fees, policy spend, depreciation, facility costs, and other corporate costs. General and administrative expenses are expensed as incurred.
Stock-based Compensation	Stock-Based Compensation The Company incurs stock-based compensation expense primarily from RSUs, PSUs, stock options, and ESPP purchase rights. The Company estimates the fair value of stock options granted to employees, directors, and consultants and ESPP purchase rights using the Black-Scholes option-pricing model. The Black-Scholes model considers several variables and assumptions in estimating the fair value of stock-based awards. These variables include: • per share fair value of the underlying common stock; • exercise price; • expected term; • risk-free interest rate; • expected annual dividend yield; and • expected stock price volatility over the expected term. The Company estimates the expected term for stock options using the simplified method for “plain vanilla” stock option awards. The expected term of the ESPP purchase rights is estimated using the period from the beginning of the offering period to the end of each purchase period. Since the Company has limited history as a public company and does not yet have sufficient trading history for the Company's common stock, the Company estimates volatility for stock options and ESPP purchase rights using the historical volatility of the stock price of similar publicly traded peer companies. The risk-free interest rate is based on the yield available on U.S. Treasury zero-coupon issues similar in duration to the expected term of the stock options or ESPP purchase rights granted. The fair value of stock options that are expected to vest is recognized as compensation expense on a straight-line basis over the requisite service period. The Company recognizes compensation expense related to the ESPP purchase rights on a straight-line basis over the offering period, which is typically 12 months. The fair value of RSUs and PSUs is estimated based on the fair market value of the Company’s common stock on the date of grant, which subsequent to the IPO is determined based on the closing price of the Company’s Class A common stock as reported on the date of grant. Prior to the IPO, the Company granted RSUs which vest upon the satisfaction of both a service condition and a performance condition. Compensation expense for RSUs with service and performance conditions is amortized on a graded basis over the requisite service period as long as the performance condition in the form of a specified liquidity event is probable to occur. The liquidity event condition was satisfied upon the effectiveness of the IPO Registration Statement on March 28, 2019. On that date the Company recorded a cumulative stock-based compensation expense of $857.2 million using the accelerated attribution method for the RSUs for which the service condition was satisfied as of March 28, 2019. The remaining unrecognized stock-based compensation expense related to these RSUs is recorded over their remaining requisite service periods. The compensation expense for RSUs granted after March 28, 2019, which vest upon satisfaction of a service-based condition only, is recognized on a straight-line basis over the requisite service period.
Income Taxes	Income Taxes The Company accounts for income taxes using the asset and liability method. Under this method, deferred income tax assets and liabilities are recorded based on the estimated future tax effects of differences between the financial statement and income tax basis of existing assets and liabilities. These differences are measured using the enacted statutory tax rates that are expected to apply to taxable income for the years in which differences are expected to reverse. The Company recognizes the effect on deferred income taxes of a change in tax rates in the period that includes the enactment date. The Company records a valuation allowance to reduce its deferred tax assets to the net amount that it believes is more-likely-than-not to be realized. Management considers all available evidence, both positive and negative, including historical levels of income, expectations and risks associated with estimates of future taxable income and ongoing tax planning strategies in assessing the need for a valuation allowance.
Business Combinations	Business Combinations The Company accounts for its business combinations using the acquisition method of accounting, which requires, among other things, allocation of the fair value of purchase consideration to the tangible and intangible assets acquired and liabilities assumed at their estimated fair values on the acquisition date. The excess of the fair value of purchase consideration over the values of these identifiable assets and liabilities is recorded as goodwill. When determining the fair value of assets acquired and liabilities assumed, management makes significant estimates and assumptions, especially with respect to intangible assets. Management’s estimates of fair value are based upon assumptions believed to be reasonable, but which are inherently uncertain and unpredictable and, as a result, actual results may differ from estimates. During the measurement period, not to exceed one year from the date of acquisition, the Company may record adjustments to the assets acquired and liabilities assumed, with a corresponding offset to goodwill if new information is obtained related to facts and circumstances that existed as of the acquisition date. After the measurement period, any subsequent adjustments are reflected in the consolidated statements of operations and comprehensive loss. Acquisition costs, such as legal and consulting fees, are expensed as incurred.
Cash and Cash Equivalents	Cash and Cash Equivalents Cash equivalents consist of institutional money market funds and certificates of deposits denominated in U.S. dollars as well as commercial paper and corporate bonds. Cash equivalents are highly liquid, short-term investments having an original maturity of 90 days or less that are readily convertible to known amounts of cash. Also included in cash and cash equivalents are cash in transit from payment processors for credit and debit card transactions, which was immaterial as of each of December 31, 2020 and 2019, and money market deposit accounts that are stated at cost, which approximate fair value.
Restricted Cash and Cash Equivalents	Restricted Cash and Cash Equivalents Restricted cash and cash equivalents consist primarily of amounts held in separate trust accounts and restricted bank accounts as collateral for insurance purposes and amounts pledged to secure certain letters of credit.
Investments	Investments Debt Securities The Company’s accounting for its debt securities is based on the legal form of the security, the Company’s intended holding period for the security, and the nature of the transaction. Investments in debt securities include commercial paper, certificates of deposit, corporate bonds and U.S. treasury bills. Investments in debt securities are classified as available-for-sale and are recorded at fair value. The Company considers an available-for-sale debt security to be impaired if the fair value of the investment is less than its amortized cost basis. The entire difference between the amortized cost basis and the fair value of the Company’s available-for-sale debt securities is recognized in the consolidated statements of operations as an impairment if, (i) the fair value of the security is below its amortized cost and (ii) the Company intends to sell or is more likely than not required to sell the security before recovery of its amortized cost basis. If neither criterion is met, the Company evaluates whether the decline in fair value is due to credit losses or other factors. In making this assessment, the Company considers the extent to which the security’s fair value is less than amortized cost, changes to the rating of the security by third-party rating agencies, and adverse conditions specific to the security, among other factors. If the Company's assessment indicates that a credit loss exists, the credit loss is measured based on the Company's best estimate of the cash flows expected to be collected. When developing its estimate of cash flows expected to be collected, the Company considers all available information relevant to the collectability of the security, including past events, current conditions, and reasonable and supportable forecasts. Credit loss impairments are recognized through an allowance for credit losses adjustment to the amortized cost basis of the debt securities on the balance sheet with an offsetting credit loss expense in the consolidated statements of operations. Impairments related to factors other than credit losses are recognized as an adjustment to the amortized cost basis of the security and an offsetting amount in accumulated other comprehensive income (loss), net of tax. As of December 31, 2020, the Company had not recorded any credit impairments. The Company determines realized gains or losses on the sale of debt securities on a specific identification method. The Company's investments in debt securities include: (i) Cash and cash equivalents. Cash equivalents include certificates of deposits, commercial paper and corporate bonds that have an original maturity of 90 days or less and are readily convertible to known amounts of cash. (ii) Short-term investments. Short-term investments are comprised of commercial paper, certificates of deposit, and corporate bonds, which mature in twelve months or less. As a result, the Company classifies these investments as current assets in the accompanying consolidated balance sheets. (iii) Restricted investments. Restricted investments are comprised of debt security investments in commercial paper, certificates of deposit, U.S. treasury bills, and corporate bonds, which are held in trust accounts at third-party financial institutions pursuant to certain contracts with insurance providers. Non-marketable Equity Securities The Company has elected to measure its investments in non-marketable equity securities at cost, with remeasurements to fair value only upon the occurrence of observable transactions for identical or similar investments of the same issuer or impairment. The Company qualitatively assesses whether indicators of impairment exist. Factors considered in this assessment include the investees’ financial and liquidity position, access to capital resources, exposure to industries and markets impacted by COVID-19, and the time since the last adjustment to fair value, among others. If an impairment exists, the Company estimates the fair value of the investment by using the best information available, which may include cash flow projections or other available market data, and recognizes a loss for the amount by which the carrying value exceeds the fair value of the investment in the consolidated statements of operations.
Concentrations of Credit Risk	Concentrations of Credit Risk The Company’s cash, cash equivalents and short-term investments are potentially subject to concentration of credit risk. Although the Company deposits its cash with multiple financial institutions, the deposits, at times, may exceed federally insured limits. The Company has not experienced any losses on its deposits of cash and cash equivalents. Management believes that the institutions are financially stable and, accordingly, minimal credit risk exists. The Company limits purchases of debt securities to investment-grade securities.
Fair Value Measurements	Fair Value Measurements The Company measures assets and liabilities at fair value based on an expected exit price, which represents the amount that would be received on the sale of an asset or paid to transfer a liability in an orderly transaction between market participants. As such, fair value may be based on assumptions that market participants would use in pricing an asset or liability. The authoritative guidance on fair value measurements establishes a consistent framework for measuring fair value on either a recurring or nonrecurring basis, whereby inputs used in valuation techniques, are assigned a hierarchical level. The following are the hierarchical levels of inputs to measure fair value: Level 1 Observable inputs that reflect quoted prices (unadjusted) for identical assets or liabilities in active markets. Level 2 Inputs reflect quoted prices for identical assets or liabilities in markets that are not active; quoted prices for similar assets or liabilities in active markets; inputs other than quoted prices that are observable for the assets or liabilities; or inputs that are derived principally from or corroborated by observable market data by correlation or other means. Level 3 Unobservable inputs reflecting our own assumptions incorporated in valuation techniques used to determine fair value. These assumptions are required to be consistent with market participant assumptions that are reasonably available. The carrying values of the Company’s accounts payable and accrued and other liabilities approximate their respective fair values due to the short period of time to payment.
Light Vehicle Fleet, Leases and Property and Equipment	Light Vehicle Fleet The Company’s Light Vehicle fleet consists of bikes and scooters. Scooters are stated at cost less accumulated depreciation and are included in prepaid expenses and other current assets in the consolidated balance sheets. Depreciation is computed using a straight-line method over the estimated useful life of the scooters, which is less than 12 months. As of December 31, 2020 and 2019, the cost of scooters not yet placed in service was $8.9 million and $9.7 million, respectively. As of December 31, 2020 and 2019, the carrying value of scooters placed in service was not material. Depreciation expense related to scooters was $7.2 million, $35.3 million, and $5.4 million for the years ended December 31, 2020, 2019 and 2018, respectively. Bikes are included in property and equipment, net in the consolidated balance sheets. Leases The Company adopted ASC 842 using the modified retrospective approach with an effective date as of the beginning of the fiscal year, January 1, 2019. The Company elected the package of transition provisions available for expired or existing contracts, which allowed the Company to carryforward the historical assessments of (1) whether contracts are or contain leases, (2) lease classification and (3) initial direct costs. In accordance with ASC 842, the Company determines if an arrangement is or contains a lease at contract inception by assessing whether the arrangement contains an identified asset and whether the lessee has the right to control such asset. The Company determines the classification and measurement of its leases upon lease commencement. The Company enters into certain agreements as a lessor and either leases or subleases the underlying asset in the agreement to customers. The Company also enters into certain agreements as a lessee. If any of the following criteria are met, the Company classifies the lease as a financing lease (as a lessee) or as a direct financing or sales-type lease (both as a lessor): • The lease transfers ownership of the underlying asset to the lessee by the end of the lease term; • The lease grants the lessee an option to purchase the underlying asset that the Company is reasonably certain to exercise; • The lease term is for 75% or more of the remaining economic life of the underlying asset, unless the commencement date falls within the last 25% of the economic life of the underlying asset; • The present value of the sum of the lease payments equals or exceeds 90% of the fair value of the underlying asset; or • The underlying asset is of such a specialized nature that it is expected to have no alternative use to the lessor at the end of the lease term. Leases that do not meet any of the above criteria are accounted for as operating leases. Lessor The Company's lease arrangements include vehicle rentals to drivers or renters under the Flexdrive and Lyft Rentals programs and Light Vehicle rentals to single-use riders. Due to the short-term nature of these arrangements, the Company classifies these leases as operating leases. The Company does not separate lease and non-lease components, such as insurance or roadside assistance provided to the lessee, in its lessor lease arrangements. Lease payments are primarily fixed and are recognized as revenue in the period over which the lease arrangement occurs. Taxes or other fees assessed by governmental authorities that are both imposed on and concurrent with each lease revenue-producing transaction and collected by the Company from the lessee are excluded from the consideration in its lease arrangements. The Company mitigates residual value risk of its leased assets by performing regular maintenance and repairs, as necessary, and through periodic reviews of asset depreciation rates based on the Company's ongoing assessment of present and estimated future market conditions. Lessee The Company's leases include real estate property to support its operations and Flexdrive vehicles that may be used by drivers to provide ridesharing services on the Lyft Platform or renters for personal reasons through Lyft Rentals. For leases with a term greater than 12 months, the Company records the related right-of-use asset and lease liability at the present value of lease payments over the term. The lease terms may include options to extend or terminate the lease when it is reasonably certain that the Company will exercise such options. The Company does not separate lease and non-lease components of contracts for real estate property leases, but has elected to do so for vehicle leases when non-lease components exist in these arrangements. For certain leases, the Company also applies a portfolio approach to account for right-of-use assets and lease liabilities that are similar in nature and have nearly identical contract provisions. The Company’s leases do not provide a readily determinable implicit rate. Therefore, the Company estimates its incremental borrowing rate to discount the lease payments based on information available at lease commencement. The Company determines its incremental borrowing rate based on the rate of interest that the Company would have to pay to borrow on a collateralized basis over a similar term for an amount equal to the lease payments in a similar economic environment. Lease payments may be fixed or variable; however, only fixed payments are included in the Company’s lease liability calculation. Operating leases are included in operating lease right-of-use assets, operating lease liabilities — current and operating lease liabilities on the consolidated balance sheets. Lease costs for the Company's operating leases are recognized on a straight-line basis primarily within operating expenses over the lease term. Finance leases are included in property and equipment, net, accrued and other current liabilities, and other liabilities on the consolidated balance sheets. Finance lease assets are amortized on a straight-line basis over the shorter of the estimated useful lives of the assets or the lease term in cost of revenue on the consolidated statements of operations. The interest component of finance leases is included in cost of revenue on the consolidated statements of operations and recognized using the effective interest method over the lease term. Variable lease payments are recognized primarily in operating expenses in the period in which the obligation for those payments are incurred. Property and Equipment Property and equipment are stated at cost less accumulated depreciation. Depreciation is computed using a straight-line method over the estimated useful life of the related asset, which is generally between two
Goodwill and Intangible Assets	Goodwill and Intangible Assets Goodwill represents the excess of the purchase price over the fair value of the net tangible and identifiable intangible assets acquired in a business combination. Intangible assets resulting from the acquisition of entities are accounted for using the purchase method of accounting based on management’s estimate of the fair value of assets received. Intangible assets are amortized on a straight-line basis over the estimated useful lives which range from two
Impairment Long-Lived Assets	Impairment of Long-Lived AssetsThe Company reviews long-lived assets, including property and equipment and intangible assets, for impairment whenever events or changes in business circumstances indicate that the carrying amount of the assets may not be fully recoverable. Such events and changes may include: significant changes in performance relative to expected operating results, changes in asset use, negative industry or economic trends, and changes in the Company’s business strategy. The Company measures recoverability of these assets by comparing the carrying amounts to the future undiscounted cash flows that the assets or the asset group are expected to generate. If the carrying value of the assets are not recoverable, the impairment recognized is measured as the amount by which the carrying value of the asset exceeds its fair value.
Software Development Costs	Software Development CostsThe Company incurs costs related to developing the Lyft Platform and related support systems. The Company capitalizes development costs related to the Lyft Platform and related support systems once the preliminary project stage is complete and it is probable that the project will be completed and the software will be used to perform the function intended.
Insurance Reserves	Insurance Reserves The Company utilizes both a wholly-owned captive insurance subsidiary and third-party insurance, which may include deductibles and self-insured retentions, to insure or reinsure costs including auto liability, uninsured and underinsured motorist, auto physical damage, first party injury coverages including personal injury protection under state law and general business liabilities up to certain limits. The recorded liabilities reflect the estimated ultimate cost for claims incurred but not paid and claims that have been incurred but not yet reported and any estimable administrative run-out expenses related to the processing of these outstanding claim payments. Liabilities are determined on a quarterly basis by internal actuaries through an analysis of historical trends, changes in claims experience including consideration of new information and application of loss development factors among other inputs and assumptions. On an annual basis, an independent third-party actuary will evaluate the liabilities for appropriateness with claims reserve valuations. Insurance claims may take years to completely settle, and the Company has limited historical loss experience. Because of the limited operational history, the Company makes certain assumptions based on currently available information and industry statistics and utilizes actuarial models and techniques to estimate the reserves. A number of factors can affect the actual cost of a claim, including the length of time the claim remains open, economic and healthcare cost trends and the results of related litigation. Furthermore, claims may emerge in future years for events that occurred in a prior year at a rate that differs from previous actuarial projections. The impact of these factors on ultimate costs for insurance is difficult to estimate and could be material. However, while the Company believes that the insurance reserve amount is adequate, the ultimate liability may be in excess of, or less than, the amount provided. As a result, the net amounts that will ultimately be paid to settle the liability and when amounts will be paid may significantly vary from the estimated amounts provided for in the consolidated balance sheets. The Company continues to review our insurance estimates in a regular, ongoing process as historical loss experience develops, additional claims are reported and settled, and the legal, regulatory and economic environment evolves.
Net Loss Per Share	Net Loss Per Share The Company follows the two-class method when computing net loss per common share when shares are issued that meet the definition of participating securities. The two-class method determines net loss per common share for each class of common stock and participating securities according to dividends declared or accumulated and participation rights in undistributed earnings. The two-class method requires income available to common stockholders for the period to be allocated between common stock and participating securities based upon their respective rights to receive dividends as if all income for the period had been distributed. The Company’s redeemable convertible preferred stock contractually entitles the holders of such shares to participate in dividends but does not contractually require the holders of such shares to participate in the Company’s losses. Basic net loss per share is computed by dividing the net loss by the weighted-average number of shares of common stock outstanding during the period, less shares subject to repurchase. The diluted net loss per share is computed by giving effect to all potentially dilutive securities outstanding for the period. For periods in which the Company reports net losses, diluted net loss per common share attributable to common stockholders is the same as basic net loss per common share attributable to common stockholders, because potentially dilutive common shares are not assumed to have been issued if their effect is anti-dilutive.
Recent Accounting Pronouncements	Recent Accounting Pronouncements Recently Adopted Accounting Pronouncements In June 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2016-13 “Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments”, which requires the measurement and recognition of expected credit losses for financial assets held at amortized cost. This standard replaces the existing incurred loss impairment model with an expected loss model which requires the use of forward-looking information to calculate credit loss estimates. It also eliminates the concept of other-than-temporary impairment and requires credit losses related to available-for-sale debt securities to be recorded through an allowance for credit losses rather than as a reduction in the amortized cost basis of the securities. Effective on January 1, 2020, the Company adopted this standard using the modified retrospective transition method. The adoption had no impact on the accumulated deficit on the consolidated balance sheet as of January 1, 2020. In August 2018, the FASB issued ASU No. 2018-15, “Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract.” This standard aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. The implementation costs incurred in a hosting arrangement that is a service contract should be presented as a prepaid asset on the balance sheet and expensed over the term of the hosting arrangement to the same line item in the statements of operations as the costs related to the hosting fees. Effective on January 1, 2020, the Company adopted this standard using the prospective transition method, which did not have a material impact on the consolidated financial statements. In August 2018, the FASB issued ASU No. 2018-13, “Fair Value Measurement (Topic 820).” This standard modifies disclosure requirements related to fair value measurement by removing certain disclosure requirements related to the fair value hierarchy, modifying existing disclosure requirements related to measurement uncertainty and adding new disclosure requirements, such as disclosing the changes in unrealized gains and losses for the period included in other comprehensive income for recurring Level 3 fair value measurements held at the end of the reporting period and disclosing the range and weighted average of significant unobservable inputs used to develop Level 3 measurements. Effective on January 1, 2020, the Company adopted this standard, which did not have a material impact on the consolidated financial statements. In March 2020, the FASB issued ASU No. 2020-04, “Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting.” In January 2021, the FASB further issued ASU 2021-01, which clarifies the scope of the optional relief for reference rate reform provided by ASC Topic 848. These standards provide optional accounting relief to entities with contracts, hedge accounting relationships or other transactions that reference London Interbank Offered Rate ("LIBOR") or other interest rate benchmarks for which the referenced rate is expected to be discontinued or replaced. The Company has agreements that have LIBOR as a reference rate with certain lenders. This optional relief generally allows for contract modifications solely related to the replacement of the reference rate to be accounted for as a continuation of the existing contract instead of as an extinguishment of the contract, and would therefore not trigger certain accounting impacts that would otherwise be required. The optional relief can be applied beginning January 1, 2020, and ending December 31, 2022. Effective on January 1, 2020, the Company adopted this standard and plans to apply the amendments in this update to account for contract modifications due to changes in reference rates, if applicable. As of December 31, 2020, the adoption of this standard did not have a material impact on the consolidated financial statements and disclosures. Recently Issued Accounting Pronouncements Not Yet Adopted In December 2019, the FASB issued ASU No. 2019-12, "Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes", which is intended to simplify the accounting for income taxes by removing certain exceptions and by updating accounting requirements around franchise taxes, goodwill recognized for tax purposes, the allocation of current and deferred tax expense among legal entities, among other minor changes. This new standard will be effective for the Company for fiscal years beginning after December 15, 2020, including interim periods within those fiscal years. Early adoption is permitted. The Company will adopt this standard effective January 1, 2021. In January 2020, the FASB issued ASU No. 2020-01, "Investments-Equity Securities (Topic 321), Investments-Equity Method and Joint Ventures (Topic 323), and Derivatives and Hedging (Topic 815): Clarifying the Interactions between Topic 321, Topic 323, and Topic 815", which clarifies the interaction of the accounting for equity securities under Topic 321 and investments accounted for under the equity method of accounting under Topic 323, and the accounting for certain forward contracts and purchased options accounted for under Topic 815. This new standard will be effective for the Company for fiscal years beginning after December 15, 2020, including interim periods within those fiscal years. Early adoption is permitted. The Company is currently assessing the impact of adopting this standard on the consolidated financial statements. In August 2020, the FASB issued ASU No. 2020-06, “Debt—Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging— Contracts in Entity’s Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity”, which simplifies the accounting for convertible instruments by eliminating the requirement to separate embedded conversion features from the host contract when the conversion features are not required to be accounted for as derivatives under Topic 815, Derivatives and Hedging, or that do not result in substantial premiums accounted for as paid-in capital. By removing the separation model, a convertible debt instrument will be reported as a single liability instrument with no separate accounting for embedded conversion features. This new standard also removes certain settlement conditions that are required for contracts to qualify for equity classification and simplifies the diluted earnings per share calculations by requiring that an entity use the if-converted method and that the effect of potential share settlement be included in diluted earnings per share calculations. This new

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2020
Accounting Policies [Abstract]
Schedule of Revenues	The table below presents the Company's revenues as included in the consolidated statements of operations (in thousands): Year Ended December 31, 2020 2019 2018 Revenue from contracts with customers (ASC 606) $ 2,208,656 $ 3,465,473 $ 2,106,021 Rental revenue (ASC 842) 156,025 150,487 50,595 Total revenue $ 2,364,681 $ 3,615,960 $ 2,156,616

Acquisitions (Tables)

Acquisitions (Tables)	12 Months Ended
	Dec. 31, 2020
Business Combinations [Abstract]
Schedule of Fair Value of Assets Acquired and Liabilities Assumed	The following table summarizes the fair value of the assets acquired and liabilities assumed at the Closing Date (in thousands): Cash and cash equivalents $ 587 Prepaid expenses and other current assets 276 Property and equipment 111,881 Finance lease right-of-use assets 56,014 Identifiable intangible assets - developed technology 13,200 Total identifiable assets acquired 181,958 Loans 134,121 Finance lease & other liabilities 57,265 Total liabilities assumed 191,386 Net liabilities assumed (9,428) Goodwill 22,455 Total acquisition consideration $ 13,027 Cash and cash equivalents $ 7,248 Prepaid expenses and other assets 20,458 Property and equipment 68,312 Identifiable intangible assets 89,800 Total identifiable assets acquired 185,818 Total liabilities assumed 53,357 Net assets acquired 132,461 Goodwill 118,474 Total acquisition consideration $ 250,935
Schedule of Fair Value and Useful Lives of Identified Intangible Assets	An assessment of the fair value of identified intangible assets and their respective useful lives as of the acquisition date are as follows: Fair Value Estimated Useful Contractual relationships – cities $ 61,100 4-12 User relationships 18,700 3 Developed technology 10,000 1 Total intangible assets $ 89,800

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets, Net (Tables)	12 Months Ended
	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Changes in Carrying Amount of Goodwill	The changes in the carrying amount of goodwill for the years ended December 31, 2020, 2019 and 2018 were as follows (in thousands): Balance as of December 31, 2018 $ 152,085 Additions 10,947 Foreign currency translation and other adjustments (4,307) Balance as of December 31, 2019 $ 158,725 Additions 22,455 Foreign currency translation and other adjustments 1,507 Balance as of December 31, 2020 $ 182,687
Schedule of Intangible Assets, Net	Intangible assets, net consisted of the following as of the dates indicated (in thousands): December 31, 2020 Weighted-average Gross Carrying Accumulated Net Carrying Developed technology and patents 3.5 $ 56,086 $ 43,434 $ 12,652 Contractual relationship – cities and user relationships 7.8 79,800 26,607 53,193 Total intangible assets $ 135,886 $ 70,041 $ 65,845 December 31, 2019 Weighted-average Gross Carrying Accumulated Net Carrying Developed technology and patents 1.6 $ 42,887 $ 26,309 $ 16,578 Contractual relationship – cities and user relationships 7.7 79,800 13,459 66,341 Total intangible assets $ 122,687 $ 39,768 $ 82,919
Schedule of Future Amortization Expense	As of December 31, 2020, future amortization of intangible assets that will be recorded in cost of revenue and operating expenses is estimated as follows (in thousands). Year ended December 31: 2021 $ 16,558 2022 10,842 2023 6,095 2024 5,639 2025 5,619 Thereafter 21,092 Total remaining amortization $ 65,845

Supplemental Financial Statem_2

Supplemental Financial Statement Information (Tables)	12 Months Ended
	Dec. 31, 2020
Balance Sheet Components Disclosure [Abstract]
Summary of Cash Equivalents and Short-Term Investments	The following tables summarize the cost or amortized cost, gross unrealized gain, gross unrealized loss and fair value of the Company’s cash equivalents and short-term investments as of the dates indicated (in thousands): December 31, 2020 Cost or Unrealized Estimated Gains Losses Unrestricted Balances (1) Money market deposit accounts $ 174,347 $ — $ — $ 174,347 Term deposits 601,000 — — 601,000 Certificates of deposit 677,602 178 (4) 677,776 Commercial paper 376,771 38 (20) 376,789 Corporate bonds 287,445 115 (41) 287,519 Total unrestricted cash equivalents and short-term investments 2,117,165 331 (65) 2,117,431 Restricted Balances (2) Money market funds 24,757 — — 24,757 Money market deposit accounts 162 — — 162 Term deposits 6,506 — — 6,506 Certificates of deposit 481,154 213 (3) 481,364 Commercial paper 469,193 57 (10) 469,240 Corporate bonds 184,560 67 (26) 184,601 Total restricted cash equivalents and investments 1,166,332 337 (39) 1,166,630 Total unrestricted and restricted cash equivalents and investments $ 3,283,497 $ 668 $ (104) $ 3,284,061 _______________ (1) Excludes $133.6 million of cash, which is included within the $2.3 billion of cash and cash equivalents and short-term investments on the consolidated balance sheets. (2) Excludes $53.8 million of restricted cash, which is included within the $1.2 billion of restricted cash and cash equivalents and restricted short-term investments on the consolidated balance sheets. December 31, 2019 Cost or Unrealized Estimated Gains Losses Unrestricted Balances (1) Money market deposit accounts $ 217,523 $ — $ — $ 217,523 Term deposits 135,000 — — 135,000 Certificates of deposit 1,275,750 887 (43) 1,276,594 Commercial paper 876,382 181 (68) 876,495 Corporate bonds 247,359 219 — 247,578 Total unrestricted cash equivalents and short-term investments 2,752,014 1,287 (111) 2,753,190 Restricted Balances (2) Money market funds 19,250 — — 19,250 Money market deposit accounts 7,884 — — 7,884 Term deposits 7,811 — — 7,811 Certificates of deposit 608,578 262 (12) 608,828 Commercial paper 791,087 165 (97) 791,155 Corporate bonds 75,828 80 — 75,908 Total restricted cash equivalents and investments 1,510,438 507 (109) 1,510,836 Total unrestricted and restricted cash equivalents and investments $ 4,262,452 $ 1,794 $ (220) $ 4,264,026 _______________ (1) Excludes $96.9 million of cash, which is included within the $2.9 billion of cash and cash equivalents and short-term investments on the consolidated balance sheets. (2) Excludes $56.4 million of restricted cash, which is included within the $1.6 billion of restricted cash and cash equivalents and restricted short-term investments on the consolidated balance sheets.
Schedule of AFS Debt Securities	The following table summarizes the Company’s available-for-sale debt securities in an unrealized loss position for which no allowance for credit losses was recorded, aggregated by major security type (in thousands): December 31, 2020 Estimated Fair Value Unrealized Losses Certificates of deposit $ 167,793 $ (7) Corporate bonds 179,369 (67) Commercial paper 164,595 (30) Total available-for-sale debt in an unrealized loss position $ 511,757 $ (104)
Schedule of Property and Equipment, Net	Property and equipment, net consisted of the following as of the dates indicated (in thousands): December 31, 2020 2019 2018 Bike fleet $ 140,473 $ 124,380 $ 65,985 Leasehold improvements 105,169 66,490 39,727 Owned vehicles 112,498 — — Finance lease right-of-use assets 28,109 — — Computer equipment and software 17,923 14,026 11,366 Furniture and fixtures 5,099 473 262 Construction in progress 19,957 25,139 3,629 429,228 230,508 120,969 Less: Accumulated depreciation (115,931) (41,905) (11,712) Property and equipment, net $ 313,297 $ 188,603 $ 109,257
Schedule of Accrued and Other Current Liabilities	Accrued and other current liabilities consisted of the following as of the dates indicated (in thousands): December 31, 2020 2019 Ride-related accruals $ 196,439 $ 253,840 Insurance-related accruals 269,849 218,161 Legal accruals 226,408 162,766 Insurance claims payable and related fees 28,318 87,357 Long-term debt, current 35,760 — Other 197,234 217,741 Accrued and other current liabilities $ 954,008 $ 939,865
Summary of Rollforward of the Insurance Reserve	The following table provides a rollforward of the insurance reserve for the periods presented (in thousands): Year Ended December 31, 2020 2019 2018 Beginning balance $ 1,378,462 $ 810,273 $ 376,538 Losses paid (552,693) (540,627) (220,936) Change in estimates for prior periods 168,131 219,163 3,392 Transfer of certain legacy auto insurance liabilities (407,885) — — Reserves for current period 401,049 889,653 651,279 Ending balance $ 987,064 $ 1,378,462 $ 810,273
Schedule of Other Income (Expense), Net	The following table sets forth the primary components of other income, net as reported on the consolidated statements of operations (in thousands): Year Ended December 31, 2020 2019 2018 Interest income (1) $ 43,654 $ 102,506 $ 66,462 Gain (loss) on sale of securities, net (868) 246 (219) Foreign currency exchange gains (losses), net 1,818 (523) 229 Other, net (935) 366 642 Other income, net $ 43,669 $ 102,595 $ 67,114 _______________

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2020
Fair Value Disclosures [Abstract]
Summary of Financial Instruments Measured at Fair Value on Recurring Basis	The following tables set forth the Company’s financial instruments that were measured at fair value on a recurring basis as of the dates indicated by level within the fair value hierarchy (in thousands): December 31, 2020 Level 1 Level 2 Level 3 Total Unrestricted Balances (1) Certificates of deposit $ — $ 677,777 $ — $ 677,777 Commercial paper — 376,789 — 376,789 Corporate bonds — 287,519 — 287,519 Total unrestricted cash equivalents and short-term investments — 1,342,085 — 1,342,085 Restricted Balances (2) Money market funds 24,757 — — 24,757 Certificates of deposit — 481,365 — 481,365 Commercial paper — 469,240 — 469,240 Corporate bonds — 184,601 — 184,601 Total restricted cash equivalents and investments 24,757 1,135,206 — 1,159,963 Total unrestricted and restricted cash equivalents and investments $ 24,757 $ 2,477,291 $ — $ 2,502,048 _______________ (1) $133.6 million of cash, $174.3 million of money market deposit accounts and $601.0 million of term deposits are not subject to recurring fair value measurement and therefore excluded from this table. However, these balances are included within the $2.3 billion of cash and cash equivalents and short-term investments on the consolidated balance sheets. (2) $53.8 million of restricted cash, $0.2 million of a money market deposit account and $6.5 million of a restricted term deposit are not subject to recurring fair value measurement and therefore excluded from this table. However, these balances are included within the $1.2 billion of restricted cash and cash equivalents and restricted short-term investments on the consolidated balance sheets. December 31, 2019 Level 1 Level 2 Level 3 Total Unrestricted Balances (1) Certificates of deposit $ — $ 1,276,594 $ — $ 1,276,594 Commercial paper — 876,495 — 876,495 Corporate bonds — 247,578 — 247,578 Total unrestricted cash equivalents and short-term investments — 2,400,667 — 2,400,667 Restricted Balances (2) Money market funds 19,250 — — 19,250 Certificates of deposit — 608,828 — 608,828 Commercial paper — 791,155 — 791,155 Corporate bonds — 75,908 — 75,908 Total restricted cash equivalents and investments 19,250 1,475,891 — 1,495,141 Total unrestricted and restricted cash equivalents and investments $ 19,250 $ 3,876,558 $ — $ 3,895,808 _______________ (1) $96.9 million of cash, $217.5 million of money market deposit accounts and $135.0 million of term deposits are not subject to recurring fair value measurement and therefore excluded from this table. However, these balances are included within the $2.9 billion of cash and cash equivalents and short-term investments on the consolidated balance sheets. (2) $56.4 million of restricted cash, $7.9 million of a money market deposit account and $7.8 million of a restricted term deposit are not subject to recurring fair value measurement and therefore excluded from this table. However, these balances are included within the $1.6 billion of restricted cash and cash equivalents and restricted short-term investments on the consolidated balance sheets.

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2020
Leases [Abstract]
Schedule of Lease Position	The table below presents the lease-related assets and liabilities recorded on the consolidated balance sheet (in thousands, except for remaining lease terms and percentages): December 31, 2020 December 31, 2019 Operating Leases Assets Operating lease right-of-use assets $ 275,756 $ 441,258 Liabilities Operating lease liabilities, current $ 49,291 $ 94,199 Operating lease liabilities, non-current 265,803 382,077 Total operating lease liabilities $ 315,094 $ 476,276 Finance Leases Assets Finance lease right-of-use assets (1) $ 28,108 $ — Liabilities Finance lease liabilities, current (2) 20,795 — Finance lease liabilities, non-current (3) 6,593 — Total finance lease liabilities $ 27,388 $ — Weighted-average remaining lease term (years) Operating leases 6.3 5.6 Finance leases 1.5 — Weighted-average discount rate Operating leases 6.4 % 6.6 % Finance leases 4.7 % — % _______________ (1) This balance is included within property and equipment, net on the consolidated balance sheets and was primarily related to leases acquired in the Flexdrive transaction. Refer to Note 3 "Acquisitions" to the consolidated financial statements for information regarding this transaction. (2) This balance is included within other current liabilities on the consolidated balance sheets and was primarily related to leases acquired in the Flexdrive transaction. Refer to Note 3 "Acquisitions" to the consolidated financial statements for information regarding this transaction.
Schedule of Lease Costs of Operating Leases	The table below presents certain information related to the lease costs for operating leases for the year ended December 31, 2020 (in thousands): Year Ended December 31, 2020 2019 Operating Leases Operating lease cost $ 73,177 $ 115,419 Finance Leases Amortization of right-of-use assets 35,005 — Interest on lease liabilities 1,980 — Other Lease Costs Short-term lease cost 4,664 4,670 Variable lease cost (1) 14,955 16,660 Total lease cost $ 129,781 $ 136,749 _______________ (1) Consist primarily of common-area maintenance, taxes and utilities for real estate leases, and certain vehicle related charges under the Flexdrive program. The table below presents certain supplemental information related to the cash flows for operating and finance leases recorded on the consolidated statements of cash flows (in thousands): Year Ended December 31, 2020 2019 Cash paid for amounts included in the measurement of lease liabilities Operating cash flows from operating leases $ 67,825 $ 111,152 Operating cash flows from finance leases 1,980 — Financing cash flows from finance leases 41,682 —
Schedule of Operating Lease Liabilities	The table below reconciles the undiscounted cash flows for each of the first five years and total of the remaining years to the lease liabilities recorded on the consolidated balance sheet as of December 31, 2020 (in thousands): Operating Leases Finance Leases Total Leases 2021 $ 72,283 $ 21,128 $ 93,411 2022 73,242 4,409 77,651 2023 56,942 1,290 58,232 2024 52,204 1,139 53,343 2025 42,377 — 42,377 Thereafter 97,284 — 97,284 Total minimum lease payments 394,332 27,966 422,298 Less: amount of lease payments representing interest (79,238) (578) (79,816) Present value of future lease payments 315,094 27,388 342,482 Less: current obligations under leases (49,291) (20,795) (70,086) Long-term lease obligations $ 265,803 $ 6,593 $ 272,396
Schedule of Finance Lease Liabilities	The table below reconciles the undiscounted cash flows for each of the first five years and total of the remaining years to the lease liabilities recorded on the consolidated balance sheet as of December 31, 2020 (in thousands): Operating Leases Finance Leases Total Leases 2021 $ 72,283 $ 21,128 $ 93,411 2022 73,242 4,409 77,651 2023 56,942 1,290 58,232 2024 52,204 1,139 53,343 2025 42,377 — 42,377 Thereafter 97,284 — 97,284 Total minimum lease payments 394,332 27,966 422,298 Less: amount of lease payments representing interest (79,238) (578) (79,816) Present value of future lease payments 315,094 27,388 342,482 Less: current obligations under leases (49,291) (20,795) (70,086) Long-term lease obligations $ 265,803 $ 6,593 $ 272,396

Commitment and Contingencies (T

Commitment and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Schedule of Minimum Payments Under Noncancelable Purchase Commitments	As of December 31, 2020, the future minimum payments under the Company’s noncancelable purchase commitments were as follows (in thousands) : 2021 $ 27,990 2022 130,514 2023 36,519 2024 8,800 2025 9,092 Thereafter 19,107 Total future minimum payments $ 232,022

Debt (Tables)

Debt (Tables)	12 Months Ended
	Dec. 31, 2020
Debt Disclosure [Abstract]
Schedule of Outstanding Debt Obligations and Interest Expense Related to Convertible Debt	Outstanding debt obligations as of December 31, 2020 were as follows (in thousands): Maturities Interest Rate December 31, 2020 Convertible senior notes May 2025 1.50% $ 568,744 Non-revolving Loan (1) 2020 - 2023 2.91% - 5.25% 103,305 Master Vehicle Loan (1) 2020 - 2022 2.70% - 6.75% 7,947 Total long-term debt, including current maturities (2) $ 679,996 Less: long-term debt maturing within one year (35,760) Total long-term debt $ 644,236 _______________ (1) These loans were acquired as part of the Flexdrive acquisition on February 7, 2020. (2) The Company had no debt as of December 31, 2019. The following table sets forth the primary components of interest expense as reported on the consolidated statements of operations (in thousands): Year Ended December 31, 2020 2019 2018 Contractual interest expense related to the 2025 Notes $ 7,008 $ — $ — Amortization of debt discount and issuance costs 21,050 — — Interest expense related to vehicle loans 4,620 — — Interest expense $ 32,678 $ — $ —
Schedule of Convertible Notes	The net carrying amounts of the liability component of the 2025 Notes were as follows (in thousands): December 31, 2020 Principal $ 747,500 Unamortized debt discount and debt issuance costs (178,756) Net carrying amount of liability component $ 568,744
Schedule of Maturities of Long-term Debt Outstanding	Maturities of long-term debt outstanding, including current maturities, as of December 31, 2020 were as follows (in thousands): 2021 $ 35,789 2022 54,309 2023 21,066 2024 88 2025 568,744 Thereafter — Total long-term debt outstanding $ 679,996

Redeemable Convertible Prefer_2

Redeemable Convertible Preferred Stock (Tables)	12 Months Ended
	Dec. 31, 2020
Temporary Equity Disclosure [Abstract]
Schedule of Redeemable Convertible Preferred Stock	The authorized, issued and outstanding shares, issue price, conversion price, liquidation preference, and carrying value of the Company’s redeemable convertible preferred stock as of December 31, 2018 were as follows (in thousands, except for share and per share data): December 31, 2018 Shares Authorized Shares Issued and Outstanding Issue Price Per Conversion Price Liquidation Preference Carrying Value Series Seed 6,063,921 6,063,921 $ 0.23 $ 0.23 $ 1,365 $ 1,332 Series A 8,129,364 8,129,364 0.76 0.76 $ 6,200 $ 6,180 Series B 7,067,771 7,067,771 2.10 2.10 $ 14,860 $ 14,794 Series C 14,479,445 14,479,445 4.25 4.25 $ 61,500 $ 61,440 Series D 24,674,534 24,674,534 10.13 10.13 $ 250,000 $ 249,878 Series E 47,099,094 47,099,094 19.45 19.45 $ 915,870 $ 913,810 Series F 37,263,568 37,263,568 26.79 26.79 $ 998,250 $ 991,336 Series G 18,662,127 18,662,127 32.15 32.15 $ 599,987 $ 599,715 Series H 42,771,492 42,771,492 39.75 39.75 $ 1,700,000 $ 1,699,726 Series I 21,117,584 12,964,393 47.35 47.35 $ 613,915 $ 613,836 227,328,900 219,175,709 $ 5,161,947 $ 5,152,047

Common Stock and Employee Sto_2

Common Stock and Employee Stock Plans (Tables)	12 Months Ended
	Dec. 31, 2020
Share-based Payment Arrangement [Abstract]
Schedule of Common Stock Reserved for Future Issuance	The following table summarizes the Company’s shares of common stock reserved for issuance as of December 31, 2020: Options issued and outstanding under the 2008 Plan 1,918,596 RSUs outstanding under the 2008 Plan, the 2018 Plan, and the 2019 Plan 33,602,435 Remaining shares available for future issuance under the 2019 ESPP Plan and the 2019 Plan 66,903,373
Schedule of Stock Options Activity	The summary of stock option activity is as follows (in thousands, except per share data): Options Outstanding Number of Weighted- Weighted- Aggregate (in years) Balance as of December 31, 2019 2,957 $ 5.13 4.7 $ 112,066 Exercises (1,038) 4.50 Forfeitures — — Cancellations — — Balance as of December 31, 2020 1,919 $ 5.47 3.7 $ 86,095
Schedule of Restricted Stock Unit Activity	The summary of restricted stock unit activity is as follows (in thousands, except per share data): Number of Weighted- Aggregate Nonvested units as of December 31, 2019 41,685 $ 52.06 $ 1,793,305 Granted 25,130 28.76 Vested (19,762) 43.72 Canceled (13,451) 47.03 Nonvested units as of December 31, 2020 33,602 $ 41.49 $ 1,650,577 Expected to vest as of December 31, 2020 32,047 $ 1,323,220
Schedule of Stock-Based Compensation Expense	The Company recorded stock-based compensation expense in the consolidated statements of operations for the periods indicated as follows (in thousands): Year Ended December 31, 2020 2019 2018 Cost of revenue $ 28,743 $ 81,321 $ 501 Operations and support 15,829 75,212 177 Research and development 325,624 971,941 4,107 Sales and marketing 23,385 72,046 261 General and administrative 172,226 398,791 3,531 Total stock-based compensation expense $ 565,807 $ 1,599,311 $ 8,577

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2020
Income Tax Disclosure [Abstract]
U.S. and Foreign Components of Loss Before Income Taxes	The components of the provision for income taxes for the periods indicated are as follows (in thousands): Year Ended December 31, 2020 2019 2018 United States $ (1,804,623) $ (2,600,858) $ (900,642) Foreign 7,232 973 (9,955) Loss before income taxes $ (1,797,391) $ (2,599,885) $ (910,597)
Components of Provision for Income Taxes	The provision for income taxes for the periods indicated are as follows (in thousands): Year Ended December 31, 2020 2019 2018 Current provision Federal $ — $ — $ — State 1,201 2,704 1,250 Foreign 1,156 1,901 116 Total current $ 2,357 $ 4,605 $ 1,366 Deferred provision Federal (36,375) (269) — State (9,534) (891) — Foreign (982) (1,089) (628) Total deferred (46,891) (2,249) (628) Total provision for (benefit from) income taxes $ (44,534) $ 2,356 $ 738
Reconciliation of Statutory Federal Income Tax Rate to the Effective Rate	A reconciliation of the U.S. federal statutory income tax rates to the Company’s effective tax rate is as follows: Year Ended December 31, 2020 2019 2018 Provision at federal statutory rate 21.0 % 21.0 % 21.0 % State, net of federal benefit 3.2 7.6 6.0 Permanent tax adjustments (1.0) (0.4) (0.8) Stock-based compensation 1.0 9.9 0.8 Convertible senior notes 2.7 — — Change in valuation allowance (24.0) (38.1) (27.6) Other adjustments (0.3) (0.2) 0.5 Provision for income taxes 2.6 % (0.2) % (0.1) %
Schedule of Deferred Tax Assets and Liabilities	The significant components of the Company’s deferred tax assets and liabilities as of the periods indicated were as follows (in thousands): December 31, 2020 2019 Deferred tax assets: Net operating loss carryforwards $ 1,697,745 $ 1,173,732 Insurance reserves 282,857 391,250 Accrued and other liabilities 395,425 369,018 Total deferred tax assets 2,376,027 1,934,000 Less: Valuation allowance (2,144,548) (1,751,118) Deferred tax assets, net of valuation allowance 231,479 182,882 Deferred tax liabilities: State income taxes (108,250) (92,585) Operating lease right of use assets (75,271) (88,376) Convertible senior notes (46,324) — Total deferred tax liabilities (229,845) (180,961) Net deferred tax assets $ 1,634 $ 1,921
Summary of Rollforward of Valuation Allowance	A reconciliation of the valuation allowance is as follows (in thousands): Year Ended December 31, 2020 2019 2018 Beginning balance $ 1,751,118 $ 761,728 $ 507,274 Net changes in deferred tax assets and liabilities 393,430 989,390 254,454 Ending balance $ 2,144,548 $ 1,751,118 $ 761,728

Net Loss Per Share (Tables)

Net Loss Per Share (Tables)	12 Months Ended
	Dec. 31, 2020
Earnings Per Share [Abstract]
Computation of Basic and Diluted Net Loss Per Share	The following table sets forth the computation of basic and diluted net loss per share for the periods indicated (in thousands, except per share data): Year Ended December 31, 2020 2019 2018 Net loss $ (1,752,857) $ (2,602,241) $ (911,335) Weighted-average shares used in computing net loss per share, basic and diluted 312,175 227,498 21,176 Net loss per share, basic and diluted $ (5.61) $ (11.44) $ (43.04)
Schedule of Outstanding Shares of Common Stock Equivalents Excluded from Computation of Diluted Net Loss Per Share	The following potentially dilutive outstanding shares were excluded from the computation of diluted net loss per share for the periods presented because including them would have had an anti-dilutive effect, or issuance of such shares is contingent upon the satisfaction of certain conditions which were not satisfied by the end of the period (in thousands): As of December 31, 2020 2019 2018 Restricted stock units 33,428 41,685 46,433 2025 Notes (1) 19,471 — — Stock options 1,919 2,957 13,818 Performance based restricted stock units 175 — — ESPP 89 — — Restricted stock awards — 94 220 Redeemable convertible preferred stock (on an if-converted basis) — — 219,176 Early exercised options — — — Total 55,082 44,736 279,647 _______________ (1) In connection with the issuance of the 2025 Notes, the Company entered into Capped Calls, which were not included for purposes of calculating the number of diluted shares outstanding, as their effect would have been anti-dilutive. The Capped Calls are expected to reduce the potential dilution to the Company's common stock (or, in the event a conversion of the 2025 Notes is settled in cash, to reduce its cash payment obligation) in the event that at the time of conversion of the 2025 Notes the Company's common stock price exceeds the conversion price of the 2025 Notes.

Restructuring (Tables)

Restructuring (Tables)	12 Months Ended
	Dec. 31, 2020
Restructuring and Related Activities [Abstract]
Schedule of Restructuring Related Charges (Benefits)	The following table summarizes the above restructuring related charges (benefits) by line item within the Company’s consolidated statements of operations where they were recorded in the year ended December 31, 2020 (in thousands): Stock-Based Compensation Benefit Severance and Other Employee Costs Lease Termination and Other Costs Total Cost of revenue $ (4,237) $ 2,010 $ 1,529 $ (698) Operation and support (2,830) 8,281 1,060 6,511 Research and development (37,082) 11,706 — (25,376) Sales and marketing (1,626) 3,071 — 1,445 General and administrative (4,031) 7,062 539 3,570 Total $ (49,806) $ 32,130 $ 3,128 $ (14,548)

Description of Business and B_2

Description of Business and Basis of Presentation - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands	Mar. 31, 2020	Apr. 09, 2019	Apr. 02, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	May 12, 2020
Description Of Business And Basis Of Presentation [Line Items]
Price per share (in dollars per share)				$ 49.13	$ 43.02	$ 47.37	$ 29.53
Proceeds from issuance of common stock in initial public offering, net of underwriting commissions, offering costs and reimbursements				$ 0	$ 2,484,029	$ 0
Preferred stock, shares authorized (in shares)				1,000,000,000	1,000,000,000
Clarendon National Insurance Company | Pacific Valley Insurance Company, Inc.
Description Of Business And Basis Of Presentation [Line Items]
Transfer of reinsurance obligations	$ 465,000
Class A Common Stock
Description Of Business And Basis Of Presentation [Line Items]
Underwriting discounts and commissions			$ 70,300
Offering costs			$ 7,700
Common stock, shares authorized (in shares)				18,000,000,000	18,000,000,000
Common stock, shares outstanding (in shares)			255,007,393	314,934,487	293,793,151
Class A Common Stock | IPO
Description Of Business And Basis Of Presentation [Line Items]
Issuance of common stock in connection with initial public offering, net of offering costs, underwriting discounts and commissions (in shares)			32,500,000
Price per share (in dollars per share)			$ 72
Proceeds from issuance of common stock in initial public offering, net of underwriting commissions, offering costs and reimbursements			$ 2,500,000
Class A Common Stock | Exercise by Underwriters' Option to Purchase Additional Shares
Description Of Business And Basis Of Presentation [Line Items]
Issuance of common stock in connection with initial public offering, net of offering costs, underwriting discounts and commissions (in shares)		2,996,845
Price per share (in dollars per share)		$ 72
Redeemable Convertible Preferred Stock
Description Of Business And Basis Of Presentation [Line Items]
Conversion of stock, shares converted (in shares)			219,175,709
Class B Common Stock
Description Of Business And Basis Of Presentation [Line Items]
Common stock, shares authorized (in shares)				100,000,000	100,000,000
Common stock, shares outstanding (in shares)			12,779,709	8,802,629	8,802,629

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Additional Information (Details)	Mar. 28, 2019USD ($)	Dec. 31, 2020USD ($)employeesegment	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Significant Accounting Policies [Line Items]
Percentage of employees terminated		17.00%
Number of positions furloughed | employee		300
Number of operating segments | segment		1
Accounts receivable		$ 104,700,000	$ 120,000,000	$ 100,500,000
Allowance for credit loss		15,200,000	6,200,000	2,600,000
Provisions for expected credit losses		11,700,000	5,100,000	3,900,000
Write-offs		(2,700,000)	(1,500,000)	(1,300,000)
Credit and refund payments		18,800,000	33,900,000	41,800,000
Advertising expenses		102,500,000	188,300,000	352,300,000
Stock-based compensation	$ 857,200,000	565,807,000	1,599,311,000	8,577,000
Cost of scooters not yet placed in service		8,900,000	9,700,000
Depreciation expense		7,200,000	35,300,000	5,400,000
Goodwill impairment		0	0	0
Impairment of long-lived assets		0	0	0
Capitalized software development costs		$ 12,800,000	0	0
Minimum
Significant Accounting Policies [Line Items]
Estimated useful life of property and equipment		2 years
Estimated useful lives of intangible assets		2 years
Maximum
Significant Accounting Policies [Line Items]
Estimated useful life of property and equipment		7 years
Estimated useful lives of intangible assets		12 years
Driver Passenger and Light Vehicle Renter Incentive Programs
Significant Accounting Policies [Line Items]
Reduction of revenue		$ 390,800,000	560,300,000	555,400,000
Sales and marketing expense		$ 135,000,000	$ 381,500,000	$ 299,200,000

Summary of Significant Accoun_5

Summary of Significant Accounting Policies - Schedule of Revenues (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Accounting Policies [Abstract]
Revenue	$ 2,208,656	$ 3,465,473	$ 2,106,021
Rental revenue (ASC 842)	156,025	150,487	50,595
Total revenue	$ 2,364,681	$ 3,615,960	$ 2,156,616

Acquisitions - Additional Infor

Acquisitions - Additional Information (Details) $ in Thousands	Feb. 07, 2020USD ($)	Nov. 30, 2018USD ($)	Dec. 31, 2019USD ($)businessCombination	Dec. 31, 2018USD ($)businessCombination	Dec. 31, 2020USD ($)	Dec. 31, 2018USD ($)
Business Acquisition [Line Items]
Operating lease right of use assets			$ 441,258		$ 275,756
Operating lease liabilities			$ 476,276		315,094
Future obligation to purchase capital equipment					$ 232,022
Flexdrive Program
Business Acquisition [Line Items]
Operating lease right of use assets	$ 133,100
Operating lease liabilities	130,100
Flexdrive Services, LLC
Business Acquisition [Line Items]
Cash consideration transferred in acquisition	20,000
Flexdrive Services, LLC | Developed Technology
Business Acquisition [Line Items]
Fair value of intangible assets acquired	$ 13,200
Weighted-average remaining useful life	3 years
Motivate
Business Acquisition [Line Items]
Cash consideration transferred in acquisition		$ 250,900
Fair value of intangible assets acquired		89,800
Acquisition costs						$ 2,600
Net loss of acquiree						0
Revenue of acquiree						$ 0
Purchase obligation commitment period					5 years
Future obligation to purchase capital equipment		100,000
Motivate | Contractual Relationships - Cities
Business Acquisition [Line Items]
Fair value of intangible assets acquired		61,100
Motivate | Developed Technology
Business Acquisition [Line Items]
Fair value of intangible assets acquired		$ 10,000
Weighted-average remaining useful life		1 year
Motivate | Minimum | Contractual Relationships - Cities
Business Acquisition [Line Items]
Weighted-average remaining useful life		4 years
Motivate | Maximum | Contractual Relationships - Cities
Business Acquisition [Line Items]
Weighted-average remaining useful life		12 years
Other Acquisitions
Business Acquisition [Line Items]
Cash consideration transferred in acquisition				$ 62,000
Number of business combinations completed | businessCombination			2	2
Cash paid for acquisitions				$ 35,000
Value of redeemable convertible preferred stock issued in acquisitions				25,300
Liabilities incurred related to indemnification				$ 1,700

Acquisitions - Schedule of Asse

Acquisitions - Schedule of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Feb. 07, 2020	Dec. 31, 2019	Dec. 31, 2018	Nov. 30, 2018
Business Acquisition [Line Items]
Goodwill	$ 182,687		$ 158,725	$ 152,085
Flexdrive Services, LLC
Business Acquisition [Line Items]
Cash and cash equivalents		$ 587
Prepaid expenses and other current assets		276
Property and equipment		111,881
Finance lease right-of-use assets		56,014
Identifiable intangible assets - developed technology		13,200
Total identifiable assets acquired		181,958
Loans		134,121
Finance lease & other liabilities		57,265
Total liabilities assumed		191,386
Net liabilities assumed		(9,428)
Goodwill		22,455
Total acquisition consideration		$ 13,027
Motivate
Business Acquisition [Line Items]
Cash and cash equivalents					$ 7,248
Prepaid expenses and other current assets					20,458
Property and equipment					68,312
Identifiable intangible assets - developed technology					89,800
Total identifiable assets acquired					185,818
Total liabilities assumed					53,357
Net liabilities assumed					132,461
Goodwill					118,474
Total acquisition consideration					$ 250,935

Acquisitions - Fair Value and U

Acquisitions - Fair Value and Useful Lives of Identified Intangible Assets Acquired (Details) - Motivate $ in Millions	Nov. 30, 2018USD ($)
Acquired Finite-Lived Intangible Assets [Line Items]
Fair value	$ 89.8
Contractual Relationships - Cities
Acquired Finite-Lived Intangible Assets [Line Items]
Fair value	61.1
User Relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Fair value	$ 18.7
Estimated useful life (in years)	3 years
Developed Technology
Acquired Finite-Lived Intangible Assets [Line Items]
Fair value	$ 10
Estimated useful life (in years)	1 year
Minimum | Contractual Relationships - Cities
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated useful life (in years)	4 years
Maximum | Contractual Relationships - Cities
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated useful life (in years)	12 years

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets, Net - Schedule of Changes in Carrying Amount of Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 158,725	$ 152,085
Additions	22,455	10,947
Foreign currency translation and other adjustments	1,507	(4,307)
Goodwill, ending balance	$ 182,687	$ 158,725

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets, Net - Intangible Assets, Net by Major Class (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Finite-lived intangible assets
Gross carrying amount	$ 135,886	$ 122,687
Accumulated amortization	70,041	39,768
Net carrying amount	$ 65,845	$ 82,919
Developed technology and patents
Finite-lived intangible assets
Weighted-average remaining useful life	3 years 6 months	1 year 7 months 6 days
Gross carrying amount	$ 56,086	$ 42,887
Accumulated amortization	43,434	26,309
Net carrying amount	$ 12,652	$ 16,578
Contractual relationship – cities and user relationships
Finite-lived intangible assets
Weighted-average remaining useful life	7 years 9 months 18 days	7 years 8 months 12 days
Gross carrying amount	$ 79,800	$ 79,800
Accumulated amortization	26,607	13,459
Net carrying amount	$ 53,193	$ 66,341

Goodwill and Intangible Asset_5

Goodwill and Intangible Assets, Net - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense	$ 29.2	$ 35.1	$ 4.8

Goodwill and Intangible Asset_6

Goodwill and Intangible Assets, Net - Future Amortization of Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Estimated amortization expense for each of the next five fiscal years
2021	$ 16,558
2022	10,842
2023	6,095
2024	5,639
2025	5,619
Thereafter	21,092
Net carrying amount	$ 65,845	$ 82,919

Supplemental Financial Statem_3

Supplemental Financial Statement Information - Summary of Cash Equivalents and Short-Term Investments (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Cash Equivalents and Short-Term Investments [Line Items]
Unrestricted cash equivalents and short-term investments, cost or amortized cost	$ 2,117,165	$ 2,752,014
Unrestricted cash equivalents and short-term investments, unrealized gains	331	1,287
Unrestricted cash equivalents and short-term investments, unrealized losses	(65)	(111)
Unrestricted cash equivalents and short-term investments, estimated fair value	2,117,431	2,753,190
Restricted cash equivalents and investments, cost or amortized cost	1,166,332	1,510,438
Restricted cash equivalents and investments, unrealized gains	337	507
Restricted cash equivalents and investments, unrealized losses	(39)	(109)
Restricted cash equivalents and investments, estimated fair value	1,166,630	1,510,836
Unrestricted and restricted cash equivalents and investments, cost or amortized cost	3,283,497	4,262,452
Unrestricted and restricted cash equivalents and investments, unrealized gains	668	1,794
Unrestricted and restricted cash equivalents and investments, unrealized losses	(104)	(220)
Total unrestricted and restricted cash equivalents and investments	3,284,061	4,264,026
Money market deposit accounts
Cash Equivalents and Short-Term Investments [Line Items]
Unrestricted cash equivalents and short-term investments, cost or amortized cost	174,347	217,523
Unrestricted cash equivalents and short-term investments, unrealized gains	0	0
Unrestricted cash equivalents and short-term investments, unrealized losses	0	0
Unrestricted cash equivalents and short-term investments, estimated fair value	174,347	217,523
Restricted cash equivalents and investments, cost or amortized cost	162	7,884
Restricted cash equivalents and investments, unrealized gains	0	0
Restricted cash equivalents and investments, unrealized losses	0	0
Restricted cash equivalents and investments, estimated fair value	162	7,884
Money market funds
Cash Equivalents and Short-Term Investments [Line Items]
Restricted cash equivalents and investments, cost or amortized cost	24,757	19,250
Restricted cash equivalents and investments, unrealized gains	0	0
Restricted cash equivalents and investments, unrealized losses	0	0
Restricted cash equivalents and investments, estimated fair value	24,757	19,250
Term deposits
Cash Equivalents and Short-Term Investments [Line Items]
Unrestricted cash equivalents and short-term investments, cost or amortized cost	601,000	135,000
Unrestricted cash equivalents and short-term investments, unrealized gains	0	0
Unrestricted cash equivalents and short-term investments, unrealized losses	0	0
Unrestricted cash equivalents and short-term investments, estimated fair value	601,000	135,000
Restricted cash equivalents and investments, cost or amortized cost	6,506	7,811
Restricted cash equivalents and investments, unrealized gains	0	0
Restricted cash equivalents and investments, unrealized losses	0	0
Restricted cash equivalents and investments, estimated fair value	6,506	7,811
Certificates of deposit
Cash Equivalents and Short-Term Investments [Line Items]
Unrestricted cash equivalents and short-term investments, cost or amortized cost	677,602	1,275,750
Unrestricted cash equivalents and short-term investments, unrealized gains	178	887
Unrestricted cash equivalents and short-term investments, unrealized losses	(4)	(43)
Unrestricted cash equivalents and short-term investments, estimated fair value	677,776	1,276,594
Restricted cash equivalents and investments, cost or amortized cost	481,154	608,578
Restricted cash equivalents and investments, unrealized gains	213	262
Restricted cash equivalents and investments, unrealized losses	(3)	(12)
Restricted cash equivalents and investments, estimated fair value	481,364	608,828
Commercial paper
Cash Equivalents and Short-Term Investments [Line Items]
Unrestricted cash equivalents and short-term investments, cost or amortized cost	376,771	876,382
Unrestricted cash equivalents and short-term investments, unrealized gains	38	181
Unrestricted cash equivalents and short-term investments, unrealized losses	(20)	(68)
Unrestricted cash equivalents and short-term investments, estimated fair value	376,789	876,495
Restricted cash equivalents and investments, cost or amortized cost	469,193	791,087
Restricted cash equivalents and investments, unrealized gains	57	165
Restricted cash equivalents and investments, unrealized losses	(10)	(97)
Restricted cash equivalents and investments, estimated fair value	469,240	791,155
Corporate bonds
Cash Equivalents and Short-Term Investments [Line Items]
Unrestricted cash equivalents and short-term investments, cost or amortized cost	287,445	247,359
Unrestricted cash equivalents and short-term investments, unrealized gains	115	219
Unrestricted cash equivalents and short-term investments, unrealized losses	(41)	0
Unrestricted cash equivalents and short-term investments, estimated fair value	287,519	247,578
Restricted cash equivalents and investments, cost or amortized cost	184,560	75,828
Restricted cash equivalents and investments, unrealized gains	67	80
Restricted cash equivalents and investments, unrealized losses	(26)	0
Restricted cash equivalents and investments, estimated fair value	$ 184,601	$ 75,908

Supplemental Financial Statem_4

Supplemental Financial Statement Information - Additonal Information (Details) - USD ($)	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash And Restricted Cash [Line Items]
Cash and cash equivalents and short-term investments		$ 2,300,000,000	$ 2,900,000,000
Restricted cash and cash equivalents and restricted short-term investments		1,200,000,000	1,600,000,000
Allowance for credit loss on marketable and non-marketable available for sale debt securities		0
Depreciation and amortization		157,353,000	108,429,000	$ 18,752,000
Transfer of certain legacy auto insurance liabilities		(407,885,000)	0	0
Loss recognized from net cost of novation agreement		64,700,000
Cost of revenue
Cash And Restricted Cash [Line Items]
Loss recognized from net cost of novation agreement		62,500,000
General and administrative
Cash And Restricted Cash [Line Items]
Loss recognized from net cost of novation agreement		2,200,000
Clarendon National Insurance Company | Pacific Valley Insurance Company, Inc.
Cash And Restricted Cash [Line Items]
Transfer of reinsurance obligations	$ 465,000,000
Reinsurance obligations	$ 816,000,000
Property, Plant and Equipment
Cash And Restricted Cash [Line Items]
Depreciation and amortization		121,000,000	37,900,000	$ 8,600,000
Cash and Cash Equivalents and Short-Term Investments
Cash And Restricted Cash [Line Items]
Cash		133,600,000	96,900,000
Restricted Cash and Cash Equivalents and Restricted Investments
Cash And Restricted Cash [Line Items]
Restricted cash		$ 53,800,000	$ 56,400,000

Supplemental Financial Statem_5

Supplemental Financial Statement Information - Schedule of AFS Debt Securities (Details) $ in Thousands	Dec. 31, 2020USD ($)
Debt Securities, Available-for-sale [Line Items]
Estimated fair value	$ 511,757
Unrealized losses	(104)
Certificates of deposit
Debt Securities, Available-for-sale [Line Items]
Estimated fair value	167,793
Unrealized losses	(7)
Corporate bonds
Debt Securities, Available-for-sale [Line Items]
Estimated fair value	179,369
Unrealized losses	(67)
Commercial paper
Debt Securities, Available-for-sale [Line Items]
Estimated fair value	164,595
Unrealized losses	$ (30)

Supplemental Financial Statem_6

Supplemental Financial Statement Information - Property and Equipment, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Finance lease right-of-use assets	$ 28,109	$ 0	$ 0
Total property and equipment, gross	429,228	230,508	120,969
Less: Accumulated depreciation	(115,931)	(41,905)	(11,712)
Total property and equipment, net	313,297	188,603	109,257
Bike fleet
Property, Plant and Equipment [Line Items]
Property and equipment, gross	140,473	124,380	65,985
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	105,169	66,490	39,727
Owned vehicles
Property, Plant and Equipment [Line Items]
Property and equipment, gross	112,498	0	0
Computer equipment and software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	17,923	14,026	11,366
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, gross	5,099	473	262
Construction in progress
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 19,957	$ 25,139	$ 3,629

Supplemental Financial Statem_7

Supplemental Financial Statement Information - Accrued and Other Current Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Balance Sheet Components Disclosure [Abstract]
Ride-related accruals	$ 196,439	$ 253,840
Insurance-related accruals	269,849	218,161
Legal accruals	226,408	162,766
Insurance claims payable and related fees	28,318	87,357
Long-term debt, current	35,760	0
Other	197,234	217,741
Total accrued and other current liabilities	$ 954,008	$ 939,865

Supplemental Financial Statem_8

Supplemental Financial Statement Information - Summary of Rollforward of Insurance Reserve (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Insurance Reserves [Roll Forward]
Beginning balance	$ 1,378,462	$ 810,273	$ 376,538
Losses paid	(552,693)	(540,627)	(220,936)
Change in estimates for prior periods	168,131	219,163	3,392
Transfer of certain legacy auto insurance liabilities	407,885	0	0
Reserves for current period	401,049	889,653	651,279
Ending balance	$ 987,064	$ 1,378,462	$ 810,273

Supplemental Financial Statem_9

Supplemental Financial Statement Information - Schedule of Other Income, Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Balance Sheet Components Disclosure [Abstract]
Interest income	$ 43,654	$ 102,506	$ 66,462
Gain (loss) on sale of securities, net	(868)	246	(219)
Foreign currency exchange gains (losses), net	1,818	(523)	229
Other, net	(935)	366	642
Other income, net	$ 43,669	$ 102,595	$ 67,114

Fair Value Measurements - Summa

Fair Value Measurements - Summary of Financial Instruments Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Financial Instruments Measured at Fair Value on a Recurring Basis [Line Items]
Total unrestricted and restricted cash equivalents and investments	$ 3,284,061	$ 4,264,026
Fair Value Measurements on a Recurring Basis
Financial Instruments Measured at Fair Value on a Recurring Basis [Line Items]
Total unrestricted cash equivalents and short-term investments	1,342,085	2,400,667
Total restricted cash equivalents and investments	1,159,963	1,495,141
Total unrestricted and restricted cash equivalents and investments	2,502,048	3,895,808
Fair Value Measurements on a Recurring Basis | Level 1
Financial Instruments Measured at Fair Value on a Recurring Basis [Line Items]
Total unrestricted cash equivalents and short-term investments	0	0
Total restricted cash equivalents and investments	24,757	19,250
Total unrestricted and restricted cash equivalents and investments	24,757	19,250
Fair Value Measurements on a Recurring Basis | Level 2
Financial Instruments Measured at Fair Value on a Recurring Basis [Line Items]
Total unrestricted cash equivalents and short-term investments	1,342,085	2,400,667
Total restricted cash equivalents and investments	1,135,206	1,475,891
Total unrestricted and restricted cash equivalents and investments	2,477,291	3,876,558
Fair Value Measurements on a Recurring Basis | Level 3
Financial Instruments Measured at Fair Value on a Recurring Basis [Line Items]
Total unrestricted cash equivalents and short-term investments	0	0
Total restricted cash equivalents and investments	0	0
Total unrestricted and restricted cash equivalents and investments	0	0
Fair Value Measurements on a Recurring Basis | Certificates of deposit
Financial Instruments Measured at Fair Value on a Recurring Basis [Line Items]
Total unrestricted cash equivalents and short-term investments	677,777	1,276,594
Total restricted cash equivalents and investments	481,365	608,828
Fair Value Measurements on a Recurring Basis | Certificates of deposit | Level 1
Financial Instruments Measured at Fair Value on a Recurring Basis [Line Items]
Total unrestricted cash equivalents and short-term investments	0	0
Total restricted cash equivalents and investments	0	0
Fair Value Measurements on a Recurring Basis | Certificates of deposit | Level 2
Financial Instruments Measured at Fair Value on a Recurring Basis [Line Items]
Total unrestricted cash equivalents and short-term investments	677,777	1,276,594
Total restricted cash equivalents and investments	481,365	608,828
Fair Value Measurements on a Recurring Basis | Certificates of deposit | Level 3
Financial Instruments Measured at Fair Value on a Recurring Basis [Line Items]
Total unrestricted cash equivalents and short-term investments	0	0
Total restricted cash equivalents and investments	0	0
Fair Value Measurements on a Recurring Basis | Money market funds
Financial Instruments Measured at Fair Value on a Recurring Basis [Line Items]
Total restricted cash equivalents and investments	24,757	19,250
Fair Value Measurements on a Recurring Basis | Money market funds | Level 1
Financial Instruments Measured at Fair Value on a Recurring Basis [Line Items]
Total restricted cash equivalents and investments	24,757	19,250
Fair Value Measurements on a Recurring Basis | Money market funds | Level 2
Financial Instruments Measured at Fair Value on a Recurring Basis [Line Items]
Total restricted cash equivalents and investments	0	0
Fair Value Measurements on a Recurring Basis | Money market funds | Level 3
Financial Instruments Measured at Fair Value on a Recurring Basis [Line Items]
Total restricted cash equivalents and investments	0	0
Fair Value Measurements on a Recurring Basis | Commercial paper
Financial Instruments Measured at Fair Value on a Recurring Basis [Line Items]
Total unrestricted cash equivalents and short-term investments	376,789	876,495
Total restricted cash equivalents and investments	469,240	791,155
Fair Value Measurements on a Recurring Basis | Commercial paper | Level 1
Financial Instruments Measured at Fair Value on a Recurring Basis [Line Items]
Total unrestricted cash equivalents and short-term investments	0	0
Total restricted cash equivalents and investments	0	0
Fair Value Measurements on a Recurring Basis | Commercial paper | Level 2
Financial Instruments Measured at Fair Value on a Recurring Basis [Line Items]
Total unrestricted cash equivalents and short-term investments	376,789	876,495
Total restricted cash equivalents and investments	469,240	791,155
Fair Value Measurements on a Recurring Basis | Commercial paper | Level 3
Financial Instruments Measured at Fair Value on a Recurring Basis [Line Items]
Total unrestricted cash equivalents and short-term investments	0	0
Total restricted cash equivalents and investments	0	0
Fair Value Measurements on a Recurring Basis | Corporate bonds
Financial Instruments Measured at Fair Value on a Recurring Basis [Line Items]
Total unrestricted cash equivalents and short-term investments	287,519	247,578
Total restricted cash equivalents and investments	184,601	75,908
Fair Value Measurements on a Recurring Basis | Corporate bonds | Level 1
Financial Instruments Measured at Fair Value on a Recurring Basis [Line Items]
Total unrestricted cash equivalents and short-term investments	0	0
Total restricted cash equivalents and investments	0	0
Fair Value Measurements on a Recurring Basis | Corporate bonds | Level 2
Financial Instruments Measured at Fair Value on a Recurring Basis [Line Items]
Total unrestricted cash equivalents and short-term investments	287,519	247,578
Total restricted cash equivalents and investments	184,601	75,908
Fair Value Measurements on a Recurring Basis | Corporate bonds | Level 3
Financial Instruments Measured at Fair Value on a Recurring Basis [Line Items]
Total unrestricted cash equivalents and short-term investments	0	0
Total restricted cash equivalents and investments	$ 0	$ 0

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019
Financial Instruments Measured at Fair Value on a Recurring Basis [Line Items]
Cash and cash equivalents and short-term investments	$ 2,300,000		$ 2,900,000
Restricted cash and cash equivalents and restricted short-term investments	1,200,000		1,600,000
Other investments	10,000	$ 10,000	0
Cash and Cash Equivalents and Short-Term Investments
Financial Instruments Measured at Fair Value on a Recurring Basis [Line Items]
Cash	133,600		96,900
Cash and Cash Equivalents and Short-Term Investments | Fair Value, Nonrecurring
Financial Instruments Measured at Fair Value on a Recurring Basis [Line Items]
Cash	133,600		96,900
Money market deposit accounts	174,300		217,500
Term deposits	601,000		135,000
Restricted Cash and Cash Equivalents and Restricted Investments
Financial Instruments Measured at Fair Value on a Recurring Basis [Line Items]
Restricted cash	53,800		56,400
Restricted Cash and Cash Equivalents and Restricted Investments | Fair Value, Nonrecurring
Financial Instruments Measured at Fair Value on a Recurring Basis [Line Items]
Money market deposit accounts	200		7,900
Term deposits	6,500		7,800
Restricted cash	$ 53,800		$ 56,400

Leases - Additional Information

Leases - Additional Information (Details) $ in Millions	12 Months Ended
	Dec. 31, 2020locationcommencedLease	Dec. 31, 2018USD ($)
Lessee, Lease, Description [Line Items]
Rent expense | $		$ 33.7
Initial term of operating lease not yet commenced	1 year
Real Estate Lease
Lessee, Lease, Description [Line Items]
Number of locations | location	86
Number of leases commenced having initial lease term of twelve months or longer	85
Number of lease not yet commenced having initial lease term of twelve months or longer	1
Real Estate Lease | Minimum
Lessee, Lease, Description [Line Items]
Lessee, operating lease, term of contract	1 month
Lessee, operating lease, option to extend term	1 year
Real Estate Lease | Maximum
Lessee, Lease, Description [Line Items]
Lessee, operating lease, term of contract	9 years
Lessee, operating lease, option to extend term	10 years
Flexdrive Program | Minimum
Lessee, Lease, Description [Line Items]
Lessee, operating lease, term of contract	1 month
Flexdrive Program | Maximum
Lessee, Lease, Description [Line Items]
Lessee, operating lease, term of contract	4 years

Leases - Schedule of Lease Posi

Leases - Schedule of Lease Position (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Operating Leases
Operating lease right-of-use assets	$ 275,756	$ 441,258
Operating lease liabilities, current	49,291	94,199
Operating lease liabilities, non-current	265,803	382,077
Total operating lease liabilities	315,094	476,276
Finance Leases
Finance lease, right of use assets	28,108	0
Finance lease liabilities, current	20,795	0
Finance lease liabilities, non-current	6,593	0
Total finance lease liabilities	$ 27,388	$ 0
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:AccruedLiabilitiesCurrent	us-gaap:AccruedLiabilitiesCurrent
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesNoncurrent	us-gaap:OtherLiabilitiesNoncurrent
Operating lease, weighted-average remaining lease term	6 years 3 months 18 days	5 years 7 months 6 days
Finance lease, weighted-average remaining lease term	1 year 6 months	0 years
Operating lease, weighted-average discount rate	6.40%	6.60%
Finance lease, weighted-average discount rate	4.70%	0.00%

Leases - Schedule of Lease Cost

Leases - Schedule of Lease Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Operating Leases
Operating lease cost	$ 73,177	$ 115,419
Finance Leases
Amortization of right-of-use assets	35,005	0
Interest on lease liabilities	1,980	0
Short-term lease cost	4,664	4,670
Variable lease cost	14,955	16,660
Total lease cost	$ 129,781	$ 136,749

Leases - Schedule of Supplement

Leases - Schedule of Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$ 67,825	$ 111,152
Operating cash flows from finance leases	1,980	0
Financing cash flows from finance leases	$ 41,682	$ 0	$ 0

Leases - Schedule of Operating

Leases - Schedule of Operating and Finance Lease Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Operating Leases
2021	$ 72,283
2022	73,242
2023	56,942
2024	52,204
2025	42,377
Thereafter	97,284
Total minimum lease payments	394,332
Less: amount of lease payments representing interest	(79,238)
Total operating lease liabilities	315,094	$ 476,276
Less: current obligations under leases	(49,291)	(94,199)
Long-term lease obligations	265,803	382,077
Finance Leases
2021	21,128
2022	4,409
2023	1,290
2024	1,139
2025	0
Thereafter	0
Total minimum lease payments	27,966
Less: amount of lease payments representing interest	(578)
Total finance lease liabilities	27,388	0
Less: current obligations under leases	(20,795)	0
Long-term lease obligations	6,593	$ 0
Total Leases
2021	93,411
2022	77,651
2023	58,232
2024	53,343
2025	42,377
Thereafter	97,284
Total minimum lease payments	422,298
Less: amount of lease payments representing interest	(79,816)
Present value of future lease payments	342,482
Less: current obligations under leases	(70,086)
Long-term lease obligations	$ 272,396

Commitment and Contingencies -

Commitment and Contingencies - Additional Information (Details) - USD ($)	Nov. 30, 2018	Dec. 31, 2020	Dec. 31, 2019	May 31, 2019	Jan. 31, 2019
Commitments And Contingencies [Line Items]
Minimum amount due in next year		$ 27,990,000
Minimum amount due in second year		130,514,000
Minimum amount due in third year		36,519,000
Future obligation to purchase capital equipment		232,022,000
Letters of credit outstanding		$ 54,200,000	$ 55,200,000
Motivate
Commitments And Contingencies [Line Items]
Future obligation to purchase capital equipment	$ 100,000,000
Purchase obligation commitment period		5 years
Web-Hosting Service Providers
Commitments And Contingencies [Line Items]
Payment for amended arrangement		$ 240,600,000
Bikeshare Program | Motivate
Commitments And Contingencies [Line Items]
Future obligation to purchase capital equipment	$ 100,000,000
Purchase obligation commitment period	5 years
Payments to acquire equipment under purchase obligations		46,900,000
Bikeshare Program | City of Chicago
Commitments And Contingencies [Line Items]
Contractual obligation				$ 7,500,000
Payment for amended arrangement		15,000,000
Future obligation to purchase capital equipment				$ 50,000,000
Payments to acquire equipment under purchase obligations		$ 19,700,000
Minimum | Web-Hosting Service Providers
Commitments And Contingencies [Line Items]
Contractual obligation					$ 300,000,000
Minimum amount due in next year					80,000,000
Minimum amount due in second year					80,000,000
Minimum amount due in third year					$ 80,000,000

Commitment and Contingencies _2

Commitment and Contingencies - Schedule of Minimum Payments Under Noncancelable Purchase Commitments (Details) $ in Thousands	Dec. 31, 2020USD ($)
Purchase Obligation, Fiscal Year Maturity [Abstract]
2021	$ 27,990
2022	130,514
2023	36,519
2024	8,800
2025	9,092
Thereafter	19,107
Total future minimum payments	$ 232,022

Debt - Schedule of Outstanding

Debt - Schedule of Outstanding Debt Obligations (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Total long-term debt, including current maturities	$ 679,996
Less: long-term debt maturing within one year	(35,760)	$ 0
Total long-term debt	$ 644,236	$ 0
Convertible Senior Notes Due 2025
Debt Instrument [Line Items]
Interest rate	1.50%
Total long-term debt, including current maturities	$ 568,744
Non-Revolving Loan
Debt Instrument [Line Items]
Total long-term debt, including current maturities	$ 103,305
Non-Revolving Loan | Minimum
Debt Instrument [Line Items]
Interest rate	2.91%
Non-Revolving Loan | Maximum
Debt Instrument [Line Items]
Interest rate	5.25%
Master Vehicle Loan
Debt Instrument [Line Items]
Total long-term debt, including current maturities	$ 7,947
Master Vehicle Loan | Minimum
Debt Instrument [Line Items]
Interest rate	2.70%
Master Vehicle Loan | Maximum
Debt Instrument [Line Items]
Interest rate	6.75%

Debt - Schedule of Interest Exp

Debt - Schedule of Interest Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Amortization of debt discount and issuance costs	$ 21,050	$ 0	$ 0
Interest expense	32,678	0	0
Convertible Senior Notes Due 2025 | Convertible Debt
Debt Instrument [Line Items]
Contractual interest expense related to the 2025 Notes	7,008	0	0
Amortization of debt discount and issuance costs	21,050	0	0
Master Vehicle Loan
Debt Instrument [Line Items]
Interest expense related to vehicle loans	$ 4,620	$ 0	$ 0

Debt - Additional Information (

Debt - Additional Information (Details)	May 15, 2020USD ($)day$ / shares	Feb. 07, 2020USD ($)	Dec. 31, 2020USD ($)$ / shares	Sep. 17, 2020USD ($)	May 12, 2020$ / shares	Dec. 31, 2019$ / shares	Mar. 11, 2019USD ($)	Dec. 31, 2018$ / shares
Debt Instrument [Line Items]
Price per share (in dollars per share) | $ / shares			$ 49.13		$ 29.53	$ 43.02		$ 47.37
Net carrying amount of liability component			$ 679,996,000
Flexdrive Services, LLC | Revolving Credit Facility
Debt Instrument [Line Items]
Maximum exposure to loss under terms of the guarantee			$ 8,600,000
Procurement Provider | Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity				$ 50,000,000			$ 95,000,000
Convertible Senior Notes Due 2025
Debt Instrument [Line Items]
Interest rate			1.50%
Net carrying amount of liability component			$ 568,744,000
Convertible Senior Notes Due 2025 | Convertible Debt
Debt Instrument [Line Items]
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		568,744,000
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
Convertible debt, if-converted value exceeding principal amount			956,600,000
Fair value of long-term debt			1,100,000,000
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 [Line Items]
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 [Line Items]
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 [Line Items]
Net carrying amount of liability component			103,305,000
Fair value of long-term debt			$ 105,300,000
Non-Revolving Loan | Minimum
Debt Instrument [Line Items]
Interest rate			2.91%
Debt term		24 months
Non-Revolving Loan | Minimum | LIBOR
Debt Instrument [Line Items]
Variable interest percentage		2.68%
Non-Revolving Loan | Maximum
Debt Instrument [Line Items]
Interest rate			5.25%
Debt term		48 months
Non-Revolving Loan | Maximum | LIBOR
Debt Instrument [Line Items]
Variable interest percentage		2.88%
Non-Revolving Loan | Flexdrive Services, LLC
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 300,000,000
Master Vehicle Loan
Debt Instrument [Line Items]
Net carrying amount of liability component			$ 7,947,000
Fair value of long-term debt			$ 8,000,000
Interest rate swap term		3 years
Variable interest spread rate		2.10%
Master Vehicle Loan | LIBOR
Debt Instrument [Line Items]
Spread on variable rate		3.00%
Master Vehicle Loan | Minimum
Debt Instrument [Line Items]
Interest rate			2.70%
Debt term		12 months
Master Vehicle Loan | Maximum
Debt Instrument [Line Items]
Interest rate			6.75%
Debt term		48 months
Master Vehicle Loan | Flexdrive Services, LLC
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 50,000,000

Debt - Schedule of Convertible

Debt - Schedule of Convertible Notes (Details) - USD ($) $ in Thousands	Dec. 31, 2020	May 15, 2020
Liability component:
Total long-term debt, including current maturities	$ 679,996
Convertible Senior Notes Due 2025
Liability component:
Total long-term debt, including current maturities	568,744
Convertible Debt | Convertible Senior Notes Due 2025
Liability component:
Principal	747,500
Unamortized debt discount and debt issuance costs	(178,756)
Total long-term debt, including current maturities	$ 568,744	$ 558,300

Debt - Schedule of Maturities o

Debt - Schedule of Maturities of Long-term Debt Outstanding (Details) $ in Thousands	Dec. 31, 2020USD ($)
Debt Disclosure [Abstract]
2021	$ 35,789
2022	54,309
2023	21,066
2024	88
2025	568,744
Thereafter	0
Total long-term debt, including current maturities	$ 679,996

Redeemable Convertible Prefer_3

Redeemable Convertible Preferred Stock - Additional Information (Details) shares in Millions	Apr. 02, 2019shares	Dec. 31, 2020USD ($)	Mar. 28, 2019vote
Class of Stock [Line Items]
Voting power percentage of total outstanding stock	50.00%
Series H
Class of Stock [Line Items]
Redeemable convertible preferred stock, voting interest required for approval	71.00%
Class A Common Stock
Class of Stock [Line Items]
Conversion of convertible preferred stock to common stock in connection with direct listing (in shares) | shares	219.2
Redeemable Convertible Preferred Stock
Class of Stock [Line Items]
Number of votes for each share of common stock | vote			1
Dividends declared and paid | $		$ 0

Redeemable Convertible Prefer_4

Redeemable Convertible Preferred Stock - Schedule of Convertible Preferred Stock (Details) - USD ($) $ / shares in Units, $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Class of Stock [Line Items]
Redeemable convertible preferred stock, shares authorized (in shares)			227,328,900
Redeemable convertible preferred stock, shares issued (in shares)			219,175,709
Redeemable convertible preferred stock, shares outstanding (in shares)			219,175,709
Redeemable convertible preferred stock, liquidation preference			$ 5,161,947
Redeemable convertible preferred stock, carrying value			$ 5,152,047
Series Seed
Class of Stock [Line Items]
Redeemable convertible preferred stock, shares authorized (in shares)			6,063,921
Redeemable convertible preferred stock, shares issued (in shares)			6,063,921
Redeemable convertible preferred stock, shares outstanding (in shares)			6,063,921
Redeemable convertible preferred stock, issue price (in dollars per share)			$ 0.23
Redeemable convertible preferred stock, per conversion price (in dollars per share)			$ 0.23
Redeemable convertible preferred stock, liquidation preference			$ 1,365
Redeemable convertible preferred stock, carrying value			$ 1,332
Series A
Class of Stock [Line Items]
Redeemable convertible preferred stock, shares authorized (in shares)			8,129,364
Redeemable convertible preferred stock, shares issued (in shares)			8,129,364
Redeemable convertible preferred stock, shares outstanding (in shares)			8,129,364
Redeemable convertible preferred stock, issue price (in dollars per share)			$ 0.76
Redeemable convertible preferred stock, per conversion price (in dollars per share)			$ 0.76
Redeemable convertible preferred stock, liquidation preference			$ 6,200
Redeemable convertible preferred stock, carrying value			$ 6,180
Series B
Class of Stock [Line Items]
Redeemable convertible preferred stock, shares authorized (in shares)			7,067,771
Redeemable convertible preferred stock, shares issued (in shares)			7,067,771
Redeemable convertible preferred stock, shares outstanding (in shares)			7,067,771
Redeemable convertible preferred stock, issue price (in dollars per share)			$ 2.10
Redeemable convertible preferred stock, per conversion price (in dollars per share)			$ 2.10
Redeemable convertible preferred stock, liquidation preference			$ 14,860
Redeemable convertible preferred stock, carrying value			$ 14,794
Series C
Class of Stock [Line Items]
Redeemable convertible preferred stock, shares authorized (in shares)			14,479,445
Redeemable convertible preferred stock, shares issued (in shares)			14,479,445
Redeemable convertible preferred stock, shares outstanding (in shares)			14,479,445
Redeemable convertible preferred stock, issue price (in dollars per share)			$ 4.25
Redeemable convertible preferred stock, per conversion price (in dollars per share)			$ 4.25
Redeemable convertible preferred stock, liquidation preference			$ 61,500
Redeemable convertible preferred stock, carrying value			$ 61,440
Series D
Class of Stock [Line Items]
Redeemable convertible preferred stock, shares authorized (in shares)			24,674,534
Redeemable convertible preferred stock, shares issued (in shares)			24,674,534
Redeemable convertible preferred stock, shares outstanding (in shares)			24,674,534
Redeemable convertible preferred stock, issue price (in dollars per share)			$ 10.13
Redeemable convertible preferred stock, per conversion price (in dollars per share)			$ 10.13
Redeemable convertible preferred stock, liquidation preference			$ 250,000
Redeemable convertible preferred stock, carrying value			$ 249,878
Series E
Class of Stock [Line Items]
Redeemable convertible preferred stock, shares authorized (in shares)			47,099,094
Redeemable convertible preferred stock, shares issued (in shares)			47,099,094
Redeemable convertible preferred stock, shares outstanding (in shares)			47,099,094
Redeemable convertible preferred stock, issue price (in dollars per share)			$ 19.45
Redeemable convertible preferred stock, per conversion price (in dollars per share)			$ 19.45
Redeemable convertible preferred stock, liquidation preference			$ 915,870
Redeemable convertible preferred stock, carrying value			$ 913,810
Series F
Class of Stock [Line Items]
Redeemable convertible preferred stock, shares authorized (in shares)			37,263,568
Redeemable convertible preferred stock, shares issued (in shares)			37,263,568
Redeemable convertible preferred stock, shares outstanding (in shares)			37,263,568
Redeemable convertible preferred stock, issue price (in dollars per share)			$ 26.79
Redeemable convertible preferred stock, per conversion price (in dollars per share)			$ 26.79
Redeemable convertible preferred stock, liquidation preference			$ 998,250
Redeemable convertible preferred stock, carrying value			$ 991,336
Series G
Class of Stock [Line Items]
Redeemable convertible preferred stock, shares authorized (in shares)			18,662,127
Redeemable convertible preferred stock, shares issued (in shares)			18,662,127
Redeemable convertible preferred stock, shares outstanding (in shares)			18,662,127
Redeemable convertible preferred stock, issue price (in dollars per share)			$ 32.15
Redeemable convertible preferred stock, per conversion price (in dollars per share)			$ 32.15
Redeemable convertible preferred stock, liquidation preference			$ 599,987
Redeemable convertible preferred stock, carrying value			$ 599,715
Series H
Class of Stock [Line Items]
Redeemable convertible preferred stock, shares authorized (in shares)			42,771,492
Redeemable convertible preferred stock, shares issued (in shares)			42,771,492
Redeemable convertible preferred stock, shares outstanding (in shares)			42,771,492
Redeemable convertible preferred stock, issue price (in dollars per share)			$ 39.75
Redeemable convertible preferred stock, per conversion price (in dollars per share)			$ 39.75
Redeemable convertible preferred stock, liquidation preference			$ 1,700,000
Redeemable convertible preferred stock, carrying value			$ 1,699,726
Series I
Class of Stock [Line Items]
Redeemable convertible preferred stock, shares authorized (in shares)			21,117,584
Redeemable convertible preferred stock, shares issued (in shares)			12,964,393
Redeemable convertible preferred stock, shares outstanding (in shares)			12,964,393
Redeemable convertible preferred stock, issue price (in dollars per share)			$ 47.35
Redeemable convertible preferred stock, per conversion price (in dollars per share)			$ 47.35
Redeemable convertible preferred stock, liquidation preference			$ 613,915
Redeemable convertible preferred stock, carrying value			$ 613,836
Redeemable Convertible Preferred Stock
Class of Stock [Line Items]
Redeemable convertible preferred stock, shares outstanding (in shares)	0	0	219,176,000	199,815,000
Redeemable convertible preferred stock, carrying value	$ 0	$ 0	$ 5,152,047	$ 4,284,049

Common Stock and Employee Sto_3

Common Stock and Employee Stock Plans - Additional Information (Details)	Jan. 01, 2020USD ($)shares	Apr. 02, 2019	Mar. 28, 2019USD ($)shares	Mar. 31, 2019USD ($)shares	Dec. 31, 2020USD ($)vote$ / sharesshares	Dec. 31, 2019USD ($)$ / sharesshares	Dec. 31, 2018USD ($)$ / sharesshares	May 12, 2020$ / shares	Mar. 27, 2019shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Voting power percentage of total outstanding stock		50.00%
Increase in number of shares reserved for future issuance (in shares)	35,000,000
Stock options granted (in shares)					0	0
Intrinsic value of stock options exercised | $					$ 36,100,000	$ 617,400,000	$ 85,000,000
Fair value of common stock (in dollars per share) | $ / shares					$ 49.13	$ 43.02	$ 47.37	$ 29.53
Issuance of common stock upon exercise of stock options (in shares)					1,038,000
Withholding tax adjustment | $					$ 20,240,000	$ 942,895,000	$ 0
Stock-based compensation expense | $					565,807,000	1,599,311,000	8,577,000
Aggregate unrecognized compensation cost | $					$ 0	3,900,000	$ 9,600,000
Executives
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares issued in business combination (in shares)							241,390
Aggregate grant-date fair value | $							$ 11,400,000
Class A Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, number of votes per share | vote					1
Number of additional shares reserved for issuance (in shares)	15,129,789
Class B Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, number of votes per share | vote					20
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved for issuance (in shares)					33,602,435
Granted (in shares)					25,130,000
Granted (in dollars per share) | $ / shares					$ 28.76
Fair value of shares vested | $					$ 700,900,000	$ 1,800,000,000	0
Withholding tax adjustment (in shares)					551,372	10,777,331
Withholding tax adjustment | $					$ 20,200,000	$ 719,500,000
Aggregate grant-date fair value | $					$ 1,650,577,000	1,793,305,000
Number of shares vested (in shares)					19,762,000
Aggregate grant-date fair value, weighted average period					2 years 4 months 24 days
Restricted Stock Units | Founder
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Withholding tax adjustment (in shares)			3,617,460
Withholding tax adjustment | $			$ 223,500,000
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant price of stock options, percentage of fair market value					100.00%
Common stock reserved for issuance (in shares)					1,918,596
Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense | $					$ 4,200,000	$ 6,000,000	$ 1,400,000
Aggregate unrecognized compensation cost | $					$ 905,600,000
Aggregate grant-date fair value, weighted average period						8 months 12 days	1 year 7 months 6 days
Performance Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)					250,000
Granted (in dollars per share) | $ / shares					$ 27.14
Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of common stock upon exercise of stock options (in shares)				3,162,797
Value of stock during the period | $				$ 205,600,000
2008 Equity Incentive Plan | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Voting power percentage of total outstanding stock					10.00%
2008 Equity Incentive Plan | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Voting power percentage of total outstanding stock					110.00%
2008 Equity Incentive Plan | Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage					25.00%
Maximum term					7 years
2008 Equity Incentive Plan | Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage					25.00%
2018 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved for issuance (in shares)					75,504,222
Additional common stock reserved for issuance (in shares) | $					$ 11,836,692
2018 Equity Incentive Plan | Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage					25.00%
Maximum term					7 years
2019 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved for issuance (in shares)					44,000,000
Service-based condition for majority of satisfied over a period					4 years
2019 Equity Incentive Plan | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved for issuance (in shares)					80,604,678
2019 Equity Incentive Plan | Class A Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of common stock outstanding	5.00%
2019 Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved for issuance (in shares)									6,000,000
Additional common stock reserved for issuance (in shares) | $	$ 3,025,957
Increase in number of shares reserved for future issuance (in shares)	7,000,000
Percentage of common stock outstanding	1.00%
Percentage of earnings for purchase of common stock									15.00%
Common stock purchased (in shares)					1,296,206

Common Stock and Employee Sto_4

Common Stock and Employee Stock Plans - Common Stock Reserved for Future Issuance (Details)	Dec. 31, 2020shares
Options issued and outstanding under the 2008 Plan
Class of Stock [Line Items]
Common stock reserved for issuance (in shares)	1,918,596
RSUs outstanding under the 2008 Plan, the 2018 Plan, and the 2019 Plan
Class of Stock [Line Items]
Common stock reserved for issuance (in shares)	33,602,435
Remaining shares available for future issuance under the 2019 ESPP Plan and the 2019 Plan
Class of Stock [Line Items]
Common stock reserved for issuance (in shares)	66,903,373

Common Stock and Employee Sto_5

Common Stock and Employee Stock Plans - Summary of Stock Option Activity (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares [Roll Forward]
Stock options outstanding, beginning balance (in shares)	2,957
Exercised (in shares)	(1,038)
Forfeitures (in shares)	0
Cancellations (in shares)	0
Stock options outstanding, ending balance (in shares)	1,919	2,957
Weighted-average exercise price per share
Stock options outstanding, weighted-average exercise price, beginning balance (in dollars per share)	$ 5.13
Exercised (in dollars per share)	4.50
Forfeitures (in dollars per share)	0
Cancellations (in dollars per share)	0
Stock options outstanding, weighted-average exercise price, ending balance (in dollars per share)	$ 5.47	$ 5.13
Stock options outstanding, weighted-average remaining contractual term	3 years 8 months 12 days	4 years 8 months 12 days
Outstanding, aggregate intrinsic value	$ 86,095	$ 112,066

Common Stock and Employee Sto_6

Common Stock and Employee Stock Plans - Schedule of Restricted Stock Units (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Weighted-average grant date fair value (per share)
Expected to vest, aggregate intrinsic value	$ 1,323,220
Restricted Stock Units
Number of shares
Nonvested units at beginning of period (in shares)	41,685
Granted (in shares)	25,130
Vested (in shares)	(19,762)
Canceled (in shares)	(13,451)
Nonvested units at end of period (in shares)	33,602	41,685
Expected to vest (in shares)	32,047
Weighted-average grant date fair value (per share)
Nonvested units at beginning of period (in dollars per share)	$ 52.06
Granted (in dollars per share)	28.76
Vested (in dollars per share)	43.72
Canceled (in dollars per share)	47.03
Nonvested units at end of period (in dollars per share)	$ 41.49	$ 52.06
Nonvested units, aggregate intrinsic value	$ 1,650,577	$ 1,793,305

Common Stock and Employee Sto_7

Common Stock and Employee Stock Plans - Schedule of Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense	$ 565,807	$ 1,599,311	$ 8,577
Cost of revenue
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense	28,743	81,321	501
Operations and support
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense	15,829	75,212	177
Research and development
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense	325,624	971,941	4,107
Sales and marketing
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense	23,385	72,046	261
General and administrative
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense	$ 172,226	$ 398,791	$ 3,531

Tender Offer (Details)

Tender Offer (Details) - Tender Offer - USD ($) $ / shares in Units, $ in Millions	1 Months Ended
	Apr. 30, 2018	Mar. 31, 2018
Subsidiary, Sale of Stock [Line Items]
Number of shares available for issue (in shares)		2,207,792
Sale price of stock (in dollars per share)		$ 38.50
Number of shares sold (in shares)	1,523,532
Aggregate proceeds from sale of stock	$ 58.7

Income Taxes - U.S. and Foreign

Income Taxes - U.S. and Foreign Components of Loss Before Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
United States	$ (1,804,623)	$ (2,600,858)	$ (900,642)
Foreign	7,232	973	(9,955)
Loss before income taxes	$ (1,797,391)	$ (2,599,885)	$ (910,597)

Income Taxes - Components of Pr

Income Taxes - Components of Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current provision
Federal	$ 0	$ 0	$ 0
State	1,201	2,704	1,250
Foreign	1,156	1,901	116
Total current	2,357	4,605	1,366
Deferred provision
Federal	(36,375)	(269)	0
State	(9,534)	(891)	0
Foreign	(982)	(1,089)	(628)
Total deferred	(46,891)	(2,249)	(628)
Total provision for (benefit from) income taxes	$ (44,534)	$ 2,356	$ 738

Income Taxes - Reconciliation o

Income Taxes - Reconciliation of Statutory Federal Income Tax Rate to the Effective Rate (Details)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Provision at federal statutory rate	21.00%	21.00%	21.00%
State, net of federal benefit	3.20%	7.60%	6.00%
Permanent tax adjustments	(1.00%)	(0.40%)	(0.80%)
Stock-based compensation	1.00%	9.90%	0.80%
Convertible senior notes	2.70%	0.00%	0.00%
Change in valuation allowance	(24.00%)	(38.10%)	(27.60%)
Other adjustments	(0.30%)	(0.20%)	0.50%
Provision for income taxes	2.60%	(0.20%)	(0.10%)

Income Taxes - Schedule of Defe

Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Net operating loss carryforwards	$ 1,697,745	$ 1,173,732
Insurance reserves	282,857	391,250
Accrued and other liabilities	395,425	369,018
Total deferred tax assets	2,376,027	1,934,000
Less: Valuation allowance	(2,144,548)	(1,751,118)	$ (761,728)	$ (507,274)
Deferred tax assets, net of valuation allowance	231,479	182,882
State income taxes	(108,250)	(92,585)
Operating lease right of use assets	(75,271)	(88,376)
Convertible senior notes	(46,324)	0
Total deferred tax liabilities	(229,845)	(180,961)
Net deferred tax assets	$ 1,634	$ 1,921

Income Taxes - Summary of Rollf

Income Taxes - Summary of Rollforward of Valuation Allowance (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Valuation Allowance, Deferred Tax Asset [Roll Forward]
Valuation allowance, beginning balance	$ 1,751,118	$ 761,728	$ 507,274
Net changes in deferred tax assets and liabilities	393,430	989,390	254,454
Valuation allowance, ending balance	$ 2,144,548	$ 1,751,118	$ 761,728

Income Taxes - Additional Infor

Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Taxes [Line Items]
Increase in valuation allowance	$ 393,430	$ 989,390	$ 254,454
Interest and penalties associated with uncertain tax benefits	0	0	0
Accrued interest and penalties	0	0	0
Unrecognized tax benefits	0	$ 0	$ 0
Federal
Income Taxes [Line Items]
Operating loss carryforwards	6,200,000
State
Income Taxes [Line Items]
Operating loss carryforwards	5,400,000
Foreign
Income Taxes [Line Items]
Operating loss carryforwards	$ 3,400

Net Loss Per Share - Computatio

Net Loss Per Share - Computation of Basic and Diluted Net Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Earnings Per Share [Abstract]
Net loss	$ (1,752,857)	$ (2,602,241)	$ (911,335)
Weighted-average shares used in computing net loss per share, basic and diluted (in shares)	312,175,000	227,498,000	21,176,000
Net loss per share, basic and diluted (in dollars per share)	$ (5.61)	$ (11.44)	$ (43.04)

Net Loss Per Share - Schedule o

Net Loss Per Share - Schedule of Outstanding Shares of Common Stock Equivalents Excluded from Computation of Diluted Net Loss Per Share (Details) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, total (in shares)	55,082	44,736	279,647
Restricted Stock Units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, total (in shares)	33,428	41,685	46,433
2025 Notes
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, total (in shares)	19,471	0	0
Stock Options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, total (in shares)	1,919	2,957	13,818
Performance Based Restricted Stock Units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, total (in shares)	175	0	0
ESPP
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, total (in shares)	89	0	0
Restricted Stock Awards
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, total (in shares)	0	94	220
Redeemable Convertible Preferred Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, total (in shares)	0	0	219,176
Early Exercised Options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, total (in shares)	0	0	0

Related-Party Transactions (Det

Related-Party Transactions (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Advertising Related and Other Services
Related Party Transaction [Line Items]
Purchase of marketing services	$ 18.1	$ 92.4
Marketing Services
Related Party Transaction [Line Items]
Purchase of marketing services	$ 1.9	$ 4

Restructuring - Additional Info

Restructuring - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Dec. 31, 2020	Jun. 30, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Restructuring Cost and Reserve [Line Items]
Stock-based compensation expense recognized due to accelerated vesting			$ 565,807	$ 1,599,311	$ 8,577
Restructuring charges (benefits)			(14,548)
April 2020 Restructuring Plan, Due to COVID-19
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefits)			(14,500)
November 2020 Restructuring Plan, Due to COVID-19
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefits)			1,400
Restricted Stock Units | April 2020 Restructuring Plan, Due to COVID-19
Restructuring Cost and Reserve [Line Items]
Benefit from reversal of previously recognized stock-based compensation expense		$ 72,700
Stock-based compensation expense recognized due to accelerated vesting		22,900
Stock-Based Compensation Benefit
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefits)			(49,806)
Stock-Based Compensation Benefit | April 2020 Restructuring Plan, Due to COVID-19
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefits)		(49,800)
Stock-Based Compensation Benefit | November 2020 Restructuring Plan, Due to COVID-19
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefits)	$ (100)
Severance and Other Employee Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefits)			32,130
Severance and Other Employee Costs | April 2020 Restructuring Plan, Due to COVID-19
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefits)		32,100
Severance and Other Employee Costs | November 2020 Restructuring Plan, Due to COVID-19
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefits)	$ 1,500
Lease Termination and Other Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefits)			$ 3,128
Lease Termination and Other Costs | April 2020 Restructuring Plan, Due to COVID-19
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefits)		$ 3,100

Restructuring - Schedule of Cha

Restructuring - Schedule of Charges (Benefits) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefits)	$ (14,548)
Stock-Based Compensation Benefit
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefits)	(49,806)
Severance and Other Employee Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefits)	32,130
Lease Termination and Other Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefits)	3,128
Cost of revenue
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefits)	(698)
Cost of revenue | Stock-Based Compensation Benefit
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefits)	(4,237)
Cost of revenue | Severance and Other Employee Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefits)	2,010
Cost of revenue | Lease Termination and Other Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefits)	1,529
Operations and support
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefits)	6,511
Operations and support | Stock-Based Compensation Benefit
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefits)	(2,830)
Operations and support | Severance and Other Employee Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefits)	8,281
Operations and support | Lease Termination and Other Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefits)	1,060
Research and development
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefits)	(25,376)
Research and development | Stock-Based Compensation Benefit
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefits)	(37,082)
Research and development | Severance and Other Employee Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefits)	11,706
Research and development | Lease Termination and Other Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefits)	0
Sales and marketing
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefits)	1,445
Sales and marketing | Stock-Based Compensation Benefit
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefits)	(1,626)
Sales and marketing | Severance and Other Employee Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefits)	3,071
Sales and marketing | Lease Termination and Other Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefits)	0
General and administrative
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefits)	3,570
General and administrative | Stock-Based Compensation Benefit
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefits)	(4,031)
General and administrative | Severance and Other Employee Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefits)	7,062
General and administrative | Lease Termination and Other Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges (benefits)	$ 539

Uncategorized Items - lyft-2020

Label	Element	Value
Restricted Cash and Cash Equivalents	us-gaap_RestrictedCashAndCashEquivalents	$ 118,559,000
Restricted Cash and Cash Equivalents	us-gaap_RestrictedCashAndCashEquivalents	204,976,000
Restricted Cash and Cash Equivalents	us-gaap_RestrictedCashAndCashEquivalents	187,374,000
Restricted Cash Included In Prepaid Expenses And Other Current Assets	lyft_RestrictedCashIncludedInPrepaidExpensesAndOtherCurrentAssets	192,000
Restricted Cash Included In Prepaid Expenses And Other Current Assets	lyft_RestrictedCashIncludedInPrepaidExpensesAndOtherCurrentAssets	1,170,000
Restricted Cash Included In Prepaid Expenses And Other Current Assets	lyft_RestrictedCashIncludedInPrepaidExpensesAndOtherCurrentAssets	$ 1,422,000