v3.23.1

Stockholders’ Deficit and Stock-based Compensation - Assumptions (Details) - shares		3 Months Ended		12 Months Ended
	Nov. 15, 2021	Mar. 31, 2022	Dec. 31, 2021	Dec. 31, 2022	Dec. 31, 2021
Class of Stock [Line Items]
Expected dividend yield					0.00%
Risk-free interest rate					0.70%
Expected volatility					60.40%
Expected term (in years)					5 years 9 months 18 days
Market Based Restricted Stock Units R S Us
Class of Stock [Line Items]
Expected dividend yield				0.00%	0.00%
Risk-free interest rate				1.50%	1.30%
Expected volatility				90.00%	95.00%
Expected term (in years)				4 years 7 months 6 days	4 years 9 months 18 days
Grants in period (in shares)				0
Market-based \| Founders of Company
Class of Stock [Line Items]
Expected dividend yield				0.00%
Risk-free interest rate				2.50%
Expected volatility				90.00%
Expected term (in years)				4 years 4 months 24 days
Market-based \| Mr. Wendel
Class of Stock [Line Items]
Grants in period (in shares)	4,500,000
Restricted Stock Units
Class of Stock [Line Items]
Grants in period (in shares)				15,127,877	29,763,009
Restricted Stock Units \| Mr. Wendel
Class of Stock [Line Items]
Grants in period (in shares)		742,972	2,750,000
Modified Vested Stock Options
Class of Stock [Line Items]
Expected dividend yield				0.00%
Risk-free interest rate, minimum				1.20%
Risk-free interest rate, maximum				2.90%
Expected volatility, minimum				52.40%
Expected volatility, maximum				61.90%
Modified Vested Stock Options \| Minimum
Class of Stock [Line Items]
Expected term (in years)				3 months 18 days
Modified Vested Stock Options \| Maximum
Class of Stock [Line Items]
Expected term (in years)				8 years 7 months 6 days

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(01)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(iii)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(ii)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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- Definition

The estimated measure of the maximum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The estimated measure of the minimum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(iv)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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- Definition

The maximum risk-free interest rate assumption that is used in valuing an option on its own shares.

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No definition available.

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- Definition

The minimum risk-free interest rate assumption that is used in valuing an option on its own shares.

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- Definition

Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(i)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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Volta Inc. 10-K