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Summary of Significant Accounting Policies - Additional Information (Details) - USD ($) $ in Thousands |  | 3 Months Ended |
--- | --- | --- | ---
Mar. 28, 2019 | Mar. 31, 2019 | Mar. 31, 2018 | Jan. 01, 2019
Significant Accounting Policies [Line Items] |  |  |  |
Referral coupons expiry term |  | 1 year |  |
Cumulative stock-based compensation expense | $ 857,200 | $ 859,486 | $ 1,996 |
Operating lease right of use assets |  | 304,605 |  | $ 285,600
Operating lease liabilities |  | 337,431 |  | 314,100
Deferred rent |  |  |  | $ 28,500
Driver Passenger and Light Vehicle Renter Incentive Programs |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Cost of revenue |  | 139,600 | 133,500 |
Sales and marketing |  | 120,900 | 61,000 |
Express Drive Partner Program |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Sublease revenue |  | 17,500 | $ 2,600 |
Operating lease right of use assets |  | 85,821 |  |
Operating lease liabilities |  | $ 91,152 |  |
Minimum |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Fleet operating costs period |  | 2 years |  |
Maximum |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Fleet operating costs period |  | 3 years |  |

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- Definition Referral coupons expiry term. + References No definition available. + Details
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- Definition The cumulative difference between the rental payments required by a lease agreement and the rental income or expense recognized on a straight-line basis, or other systematic and rational basis more representative of the time pattern in which use or benefit is granted or derived from the leased property, expected to be recognized in income or expense over the term of the leased property by the lessor or lessee, respectively. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=77902458&loc=d3e39896-112707 + Details
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977 + Details
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- Definition Amount of lessee's right to use underlying asset under operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977 + Details
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- Definition The amount of revenue recognized for the period under subleasing arrangements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 55 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=77891322&loc=d3e41620-112719 + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 + Details
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