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Subsequent Events - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions |  | 1 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Dec. 12, 2021 | Dec. 31, 2021 | Sep. 25, 2021 | Mar. 23, 2022
Warrant Units [Member] |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Warrants Vested Units |  |  | 446,741 |
Walmart Inc. [Member] | Warrant Units [Member] |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Warrants Vested Units |  | 446,741 |  |
Warrants Vested Value |  | $ 173.8 |  |
Common Class A [Member] | Walmart [Member] |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Percentage of ownership percentage |  | 6.50% |  |
Common Class A [Member] | Walmart Inc. [Member] |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Units issued during the period on exercise of warrants units |  | 446,741 |  |
Subsequent Event [Member] | Walmart Inc. [Member] | Warrant Units [Member] |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Warrants Vested Units | 267,281 | 446,741 |  |
Warrants Vested Value | $ 104.0 | $ 173.8 |  |
Subsequent Event [Member] | Forward Purchase Agreement [Member] | SVF INVESTMENT CORP 3 [Member] |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Common Stock Subscription |  |  |  | $ 50.0
Share price |  |  |  | $ 10
Subsequent Event [Member] | Common Class A [Member] | Walmart [Member] |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Percentage of ownership percentage | 3.70% | 6.50% |  |
Subsequent Event [Member] | Common Class A [Member] | Walmart Inc. [Member] |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Units issued during the period on exercise of warrants units | 267,281 | 446,741 |  |
Subsequent Event [Member] | Common Class A [Member] | Walmart Inc. [Member] | Warrant Units [Member] |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Warrants Vested Units | 258,972 |  |  |
Class of warrants or rights exercise price per share | $ 614.34 |  |  |

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- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21475-112644 + Details
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- Definition Monetary value of common stock allocated to investors to buy shares of a new issue of common stock before they are offered to the public. When stock is sold on a subscription basis, the issuer does not initially receive the total proceeds. In general, the issuer does not issue the shares to the investor until it receives the entire proceeds. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=65888546&loc=d3e21300-112643 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
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