Cover Page
Cover Page - USD ($) $ in Millions | 12 Months Ended | ||
Dec. 31, 2021 | Apr. 15, 2022 | Jun. 30, 2021 | |
Entity Information [Line Items] | |||
Document Type | 10-K/A | ||
Document Annual Report | true | ||
Document Period End Date | Dec. 31, 2021 | ||
Current Fiscal Year End Date | --12-31 | ||
Document Transition Report | false | ||
Entity File Number | 001-439508 | ||
Entity Registrant Name | Volta Inc. | ||
Entity Incorporation, State or Country Code | DE | ||
Entity Tax Identification Number | 35-2728007 | ||
Entity Address, Address Line One | 155 De Haro Street | ||
Entity Address, City or Town | San Francisco | ||
Entity Address, State or Province | CA | ||
Entity Address, Postal Zip Code | 94103 | ||
City Area Code | 888 | ||
Local Phone Number | 264-2208 | ||
Entity Well-known Seasoned Issuer | No | ||
Entity Voluntary Filers | No | ||
Entity Current Reporting Status | Yes | ||
Entity Interactive Data Current | Yes | ||
Entity Filer Category | Non-accelerated Filer | ||
Entity Small Business | true | ||
Entity Emerging Growth Company | true | ||
Entity Ex Transition Period | false | ||
ICFR Auditor Attestation Flag | false | ||
Entity Shell Company | false | ||
Entity Public Float | $ 346 | ||
Entity Central Index Key | 0001819584 | ||
Document Fiscal Year Focus | 2021 | ||
Document Fiscal Period Focus | FY | ||
Amendment Flag | false | ||
Auditor Name | Grant Thornton LLP | ||
Auditor Location | San Francisco, California | ||
Auditor Firm ID | 248 | ||
Class A common stock, par value of $0.0001 per share | |||
Entity Information [Line Items] | |||
Title of 12(b) Security | Class A common stock, par value of $0.0001 per share | ||
Trading Symbol | VLTA | ||
Security Exchange Name | NYSE | ||
Entity Common Stock, Shares Outstanding | 167,198,260 | ||
Warrants, each exercisable for one share of Class A common stock for $11.50 per share | |||
Entity Information [Line Items] | |||
Title of 12(b) Security | Warrants, each exercisable for one share of Class A common stock for $11.50 per share | ||
Trading Symbol | VLTA WS | ||
Security Exchange Name | NYSE | ||
Class B Common Stock | |||
Entity Information [Line Items] | |||
Entity Common Stock, Shares Outstanding | 395,335 |