Business combination contingent consideration shares issuable shares.

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- Definition

Number of consecutive trading days for determining the share price.

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No definition available.

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Number of trading days for determining the share price.

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- Definition

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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No definition available.

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- Definition

Description of basis for conversion of convertible common stock.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
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- Definition

Face amount or stated value per share of common stock.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

Amount 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

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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.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

+ References

No definition available.

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- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

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Business Combination (Detail) - USD ($)	Jul. 16, 2021	Mar. 11, 2021	Sep. 26, 2021	Jun. 30, 2021	Dec. 31, 2020	Oct. 06, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Common Stock, Par or Stated Value Per Share			$ 0.0001		$ 0.0001		$ 0.0001
Common stock shares subscribed but not issued	24,000,000
Sale of Stock, Price Per Share	$ 10.00
Common stock shares subscribed but not issued value	$ 240,000
Holley Parent Holdings LLC [Member] \| Founder Shares [Member] \| Empower Ltd [Member]
Business Acquisition [Line Items]
Business combination contingent consideration shares issuable		2,187,500
Holley Parent Holdings LLC [Member] \| Maximum [Member] \| Founder Shares [Member] \| Empower Ltd [Member]
Business Acquisition [Line Items]
Share price		$ 15.00
Holley Parent Holdings LLC [Member] \| Tranche One [Member] \| Founder Shares [Member] \| Empower Ltd [Member]
Business Acquisition [Line Items]
Business combination contingent consideration shares issuable		1,093,750
Number of trading days for determining the share price		20 years
Number of consecutive trading days for determining the share price		30 years
Holley Parent Holdings LLC [Member] \| Tranche One [Member] \| Minimum [Member] \| Founder Shares [Member] \| Empower Ltd [Member]
Business Acquisition [Line Items]
Share price		$ 13.00
Holley Parent Holdings LLC [Member] \| Tranche Two [Member] \| Founder Shares [Member] \| Empower Ltd [Member]
Business Acquisition [Line Items]
Business combination contingent consideration shares issuable		1,093,750
Holley Parent Holdings LLC [Member] \| Tranche Two [Member] \| Maximum [Member] \| Founder Shares [Member] \| Empower Ltd [Member]
Business Acquisition [Line Items]
Share price		$ 13.00
Merger Agreement [Member] \| Holley Parent Holdings LLC [Member]
Business Acquisition [Line Items]
Sale of Stock, Price Per Share	$ 10.00
Subscription Agreement [Member] \| PIPE Investors [Member]
Business Acquisition [Line Items]
Common stock shares subscribed but not issued	24,000,000
Sale of Stock, Price Per Share	$ 10.00
Common stock shares subscribed but not issued value	$ 240,000,000
Subscription Agreement [Member] \| PIPE Investors [Member] \| Empower Ltd [Member]
Business Acquisition [Line Items]
Common stock shares subscribed but not issued				24,000,000
Sale of Stock, Price Per Share				$ 10.00
Common stock shares subscribed but not issued value				$ 240,000,000
Class A Common Stock And One Third Of One Warrant [Member] \| Forward Purchase Agreement [Member] \| Empower Funding LLC [Member] \| Empower Ltd [Member]
Business Acquisition [Line Items]
Common stock shares subscribed but not issued						5,000,000
Sale of Stock, Price Per Share						$ 10.00
Empower Class A Common Stock [Member] \| Merger Agreement [Member] \| Subsequent Event [Member] \| Empower Ltd [Member]
Business Acquisition [Line Items]
Common Stock, Par or Stated Value Per Share	$ 0.0001
Common stock conversion basis	one
EMpower Class B Common Stock [Member] \| Merger Agreement [Member] \| Subsequent Event [Member] \| Empower Ltd [Member]
Business Acquisition [Line Items]
Common Stock, Par or Stated Value Per Share	$ 0.0001
Common stock conversion basis	one