DESCRIPTION OF THE BUSINESS, BASIS OF PRESENTATION, AND SUMMARY ACCOUNTING POLICIES (Policies)	9 Months Ended
Sep. 26, 2021
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("U.S. GAAP" or “GAAP”) and applicable rules and regulations of the U.S. Securities and Exchange Commission (“SEC”) regarding interim financial reporting. Certain information and footnote disclosures normally included in the financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to such rules and regulations. Accordingly, these interim condensed consolidated financial statements should be read in conjunction with the Holley Intermediate Holdings, Inc. audited consolidated financial statements and notes thereto for the year ended December 31, 2020, as filed with the SEC in the Company’s prospectus filed pursuant to Rule 424(b)(3) on July 28, 2021. In management’s opinion, the unaudited interim condensed consolidated financial statements reflect all adjustments, which are of a normal and recurring nature, that are necessary for a fair presentation of financial results for the interim periods presented. Operating results for any quarter are not necessarily indicative of the results for the full fiscal year. The Company operates on a calendar year that ends on December 31, 2021 and 2020. The three and nine month periods ended September 26, 2021 and September 27, 2020 each included 13 weeks and 39 weeks, respectively.
Principles of Consolidation	Principles of Consolidation These unaudited condensed consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. All significant intercompany transactions and accounts have been eliminated in consolidation.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates. Significant areas for which management uses estimates include: (1) warranties; (2) allowance for credit losses; (3) inventory reserves; (4) asset impairments, including goodwill, intangible assets and other long-lived assets; (5) customer co-operative advertising; (6) sales returns and allowances; (7) tax positions; (8) deferred tax liabilities; and (9) fair value measurements, including equity awards and warrant and earn-out liabilities. These estimates require the use of judgment as future events and the effect of these events cannot be predicted with certainty. The estimates will change as new events occur, as more experience is acquired and as more information is obtained. The Company evaluates and updates assumptions and estimates on an ongoing basis and may consult outside experts to assist as considered necessary.
Emerging Growth Company Status	Emerging Growth Company Status Section 102(b)(1) of the Jumpstart Our Business Startups Act of 2012 (“JOBS Act”), exempts emerging growth companies from being required to comply with new or revised financial accounting standards until private companies are required to comply with the new or revised financial accounting standards. The JOBS Act provides that a company can elect to opt out of the extended transition period and comply with the requirements that apply to non-emerging growth companies but any such election to opt out is irrevocable. The Company is an emerging growth company, and, as such, has elected to take advantage of the benefits of the extended transition period for new or revised financial accounting standards.
Warrants	The Company reviews the terms of warrants to purchase its common stock to determine whether warrants should be classified as liabilities or stockholders' equity in its consolidated balance sheet. In order for a warrant to be classified in stockholders' equity, the warrant must be (a) indexed to the Company's equity and (b) meet the conditions for equity classification in Accounting Standards Codification ("ASC") Subtopic 815-40, Derivatives and Hedging-Contracts in an Entity's Own Equity. If a warrant does not meet the conditions for equity classification, it is carried in the condensed consolidated balance sheet as a warrant liability measured at fair value, with subsequent changes in the fair value of the warrant recorded in the condensed consolidated statements of comprehensive income as a non-operating expense. If a warrant meets both conditions for equity classification, the warrant is initially recorded in additional paid-in capital on the consolidated balance sheet, and the amount initially recorded is not subsequently remeasured at fair value.
Stock-Based Compensation	Stock-Based Compensation The Company accounts for share-based awards granted to employees and nonemployees under the fair value method prescribed by ASC Subtopic 718-10, Stock Compensation. Stock-based compensation cost is measured based on the estimated grant date fair value of the award and is recognized as expense over the requisite service period. The fair value of stock options is estimated using the Black Scholes option-pricing model. The Company accounts for forfeitures as they occur.
Earnings per Share	Earnings per share is computed by dividing net income or loss available to common stockholders by the weighted average number of common shares outstanding for the period. Diluted earnings per share is computed by giving effect to all potential dilutive common stock equivalents outstanding for the period. The dilutive effect of these potential common shares is reflected in diluted earnings per share by application of the treasury stock method.
Risks and Uncertainties	Risks and Uncertainties COVID-19 has adversely impacted global supply chain and general economic conditions. The Company has experienced disruptions and higher costs in manufacturing, supply chain, logistical operations, and shortages of certain Company products in distribution channels. The full extent of the impact of the COVID-19 pandemic on the Company's business and operational and financial performance and condition is currently uncertain and will depend on many factors outside the Company's control, including but not limited to the timing, extent, duration and effects of the virus and any of its mutations, the utilization and effectiveness of treatments and vaccines, the imposition of effective public safety and other protective measures, the further impact of COVID-19 on the global economy and demand for the Company's products and services. Should the COVID-19 pandemic, including variants such as Delta, not improve or worsen, or if the Company's attempt to mitigate its impact on its supply chain, operations and costs is not successful, the Company's business, results of operations, financial condition and prospects may be adversely affected.
Fair Value Measurements	Fair Value Measurements Fair value is defined as the price that would be received for sale of an asset or paid for transfer of a liability, in an orderly transaction between market participants at the measurement date. In determining fair value, the Company utilizes valuation techniques that maximize the use of observable inputs and minimizes the use of unobservable inputs to the extent possible. The inputs used to measure fair value are prioritized based on a three-level hierarchy, which are defined as follows: Level 1 – Quoted prices (unadjusted) for identical assets or liabilities in active markets that the entity has the ability to access as of the measurement date. Level 2 – Significant other observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data. Level 3 – Significant unobservable inputs that reflect a company’s own assumptions about the assumptions that market participants would use in pricing an asset or liability.
Derivative Financial Instruments	Derivative Financial Instruments The Company evaluates its financial instruments to determine if such instruments are derivatives or contain features that qualify as embedded derivatives in accordance with ASC Topic 815, “Derivatives and Hedging”. For derivative financial instruments that are accounted for as liabilities, the derivative instrument is initially recorded at its fair value on the grant date and is then re-valued at each reporting date, with changes in the fair value reported in the statements of operations. Derivative liabilities are classified on the balance sheet as current or non-current based on whether or not net-cash settlement or conversion of the instrument could be required within 12 months of the balance sheet date.
Recent Accounting Standards	Recent Accounting Pronouncements Accounting Standards Not Yet Adopted In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842). The ASU is effective for the Company for annual reporting periods beginning after December 15, 2021 and interim periods therein, with early adoption permitted. The ASU will require lessees to report most leases as assets and liabilities on the balance sheet. The Company is currently evaluating the potential impact of adopting this guidance on its financial statements. In August 2018, the FASB issued ASU 2018-14, Compensation – Retirements Benefits – Defined Benefit Plans – General (Subtopic 715-20). The ASU is effective for the Company for annual reporting periods beginning after December 15, 2021 with early adoption permitted. This guidance should be applied on a retrospective basis to all periods presented. The ASU will update disclosure requirements for employers that sponsor defined benefit pension or other post retirement plans. The Company is currently evaluating the potential impact of adopting this guidance on its financial statements. In December 2019, the FASB issued ASU 2019-12, Simplifying the Accounting for Income Taxes (Topic 740) which is intended to simplify various aspects related to accounting for income taxes. This ASU is effective for the Company for annual reporting periods beginning after December 15, 2021 and interim periods therein, with early adoption permitted. The ASU removes certain exceptions to the general principles in Topic 740 and also clarifies and amends existing guidance to improve consistent application. The Company is currently evaluating the potential impact of adopting this guidance on its financial statements. In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848). The ASU provides optional expedients and exceptions for applying GAAP to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met. Adoption of the provisions of ASU 2020-04 are optional and are effective from March 12, 2020 through December 31, 2022. As of September 26, 2021, the Company did not adopt any expedients or exceptions under ASU 2020-04. The Company will continue to evaluate the impact of ASU 2020-04 and whether it will apply the optional expedients and exceptions. In August 2020, the FASB issued ASU 2020-06, Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity (Subtopic 470-20). The ASU is effective for the Company for annual reporting periods beginning after December 15, 2023 and interim periods therein, with early adoption permitted as of the beginning of the Company's annual fiscal year. The ASU includes amendments to the guidance on convertible instruments and the derivative scope exception for contracts in an entity’s own equity and simplifies the accounting for convertible instruments which include beneficial conversion features or cash conversion features by removing certain separation models in Subtopic 470-20. Additionally, the ASU requires entities to use the “if-converted” method when calculating diluted earnings per share for convertible instruments. The Company is currently evaluating the potential impact of adopting this guidance on its financial statements.

DESCRIPTION OF THE BUSINESS, BASIS OF PRESENTATION, AND SUMMARY ACCOUNTING POLICIES (Policies)

9 Months Ended

Sep. 26, 2021

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("U.S. GAAP" or “GAAP”) and applicable rules and regulations of the U.S. Securities and Exchange Commission (“SEC”) regarding interim financial reporting. Certain information and footnote disclosures normally included in the financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to such rules and regulations. Accordingly, these interim condensed consolidated financial statements should be read in conjunction with the Holley Intermediate Holdings, Inc. audited consolidated financial statements and notes thereto for the year ended December 31, 2020, as filed with the SEC in the Company’s prospectus filed pursuant to Rule 424(b)(3) on July 28, 2021. In management’s opinion, the unaudited interim condensed consolidated financial statements reflect all adjustments, which are of a normal and recurring nature, that are necessary for a fair presentation of financial results for the interim periods presented. Operating results for any quarter are not necessarily indicative of the results for the full fiscal year.

The Company operates on a calendar year that ends on December 31, 2021 and 2020. The three and nine month periods ended September 26, 2021 and September 27, 2020 each included 13 weeks and 39 weeks, respectively.

Principles of Consolidation

These unaudited condensed consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. All significant intercompany transactions and accounts have been eliminated in consolidation.

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates. Significant areas for which management uses estimates include: (1) warranties; (2) allowance for credit losses; (3) inventory reserves; (4) asset impairments, including goodwill, intangible assets and other long-lived assets; (5) customer co-operative advertising; (6) sales returns and allowances; (7) tax positions; (8) deferred tax liabilities; and (9) fair value measurements, including equity awards and warrant and earn-out liabilities. These estimates require the use of judgment as future events and the effect of these events cannot be predicted with certainty. The estimates will change as new events occur, as more experience is acquired and as more information is obtained. The Company evaluates and updates assumptions and estimates on an ongoing basis and may consult outside experts to assist as considered necessary.

Emerging Growth Company Status

Section 102(b)(1) of the Jumpstart Our Business Startups Act of 2012 (“JOBS Act”), exempts emerging growth companies from being required to comply with new or revised financial accounting standards until private companies are required to comply with the new or revised financial accounting standards. The JOBS Act provides that a company can elect to opt out of the extended transition period and comply with the requirements that apply to non-emerging growth companies but any such election to opt out is irrevocable. The Company is an emerging growth company, and, as such, has elected to take advantage of the benefits of the extended transition period for new or revised financial accounting standards.

Warrants

The Company reviews the terms of warrants to purchase its common stock to determine whether warrants should be classified as liabilities or stockholders' equity in its consolidated balance sheet. In order for a warrant to be classified in stockholders' equity, the warrant must be (a) indexed to the Company's equity and (b) meet the conditions for equity classification in Accounting Standards Codification ("ASC") Subtopic 815-40, Derivatives and Hedging-Contracts in an Entity's Own Equity. If a warrant does not meet the conditions for equity classification, it is carried in the condensed consolidated balance sheet as a warrant liability measured at fair value, with subsequent changes in the fair value of the warrant recorded in the condensed consolidated statements of comprehensive income as a non-operating expense. If a warrant meets both conditions for equity classification, the warrant is initially recorded in additional paid-in capital on the consolidated balance sheet, and the amount initially recorded is not subsequently remeasured at fair value.

Stock-Based Compensation

The Company accounts for share-based awards granted to employees and nonemployees under the fair value method prescribed by ASC Subtopic 718-10, Stock Compensation. Stock-based compensation cost is measured based on the estimated grant date fair value of the award and is recognized as expense over the requisite service period. The fair value of stock options is estimated using the Black Scholes option-pricing model. The Company accounts for forfeitures as they occur.

Earnings per Share

Earnings per share is computed by dividing net income or loss available to common stockholders by the weighted average number of common shares outstanding for the period. Diluted earnings per share is computed by giving effect to all potential dilutive common stock equivalents outstanding for the period. The dilutive effect of these potential common shares is reflected in diluted earnings per share by application of the treasury stock method.

Risks and Uncertainties

COVID-19 has adversely impacted global supply chain and general economic conditions. The Company has experienced disruptions and higher costs in manufacturing, supply chain, logistical operations, and shortages of certain Company products in distribution channels. The full extent of the impact of the COVID-19 pandemic on the Company's business and operational and financial performance and condition is currently uncertain and will depend on many factors outside the Company's control, including but not limited to the timing, extent, duration and effects of the virus and any of its mutations, the utilization and effectiveness of treatments and vaccines, the imposition of effective public safety and other protective measures, the further impact of COVID-19 on the global economy and demand for the Company's products and services. Should the COVID-19 pandemic, including variants such as Delta, not improve or worsen, or if the Company's attempt to mitigate its impact on its supply chain, operations and costs is not successful, the Company's business, results of operations, financial condition and prospects may be adversely affected.

Fair Value Measurements

Fair value is defined as the price that would be received for sale of an asset or paid for transfer of a liability, in an orderly transaction between market participants at the measurement date. In determining fair value, the Company utilizes valuation techniques that maximize the use of observable inputs and minimizes the use of unobservable inputs to the extent possible. The inputs used to measure fair value are prioritized based on a three-level hierarchy, which are defined as follows:

Level 1 – Quoted prices (unadjusted) for identical assets or liabilities in active markets that the entity has the ability to access as of the measurement date.

Level 2 – Significant other observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data.

Level 3 – Significant unobservable inputs that reflect a company’s own assumptions about the assumptions that market participants would use in pricing an asset or liability.

Derivative Financial Instruments

The Company evaluates its financial instruments to determine if such instruments are derivatives or contain features that qualify as embedded derivatives in accordance with ASC Topic 815, “Derivatives and Hedging”. For derivative financial instruments that are accounted for as liabilities, the derivative instrument is initially recorded at its fair value on the grant date and is then re-valued at each reporting date, with changes in the fair value reported in the statements of operations. Derivative liabilities are classified on the balance sheet as current or non-current based on whether or not net-cash settlement or conversion of the instrument could be required within 12 months of the balance sheet date.

Recent Accounting Standards

Recent Accounting Pronouncements

Accounting Standards Not Yet Adopted

In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842). The ASU is effective for the Company for annual reporting periods beginning after December 15, 2021 and interim periods therein, with early adoption permitted. The ASU will require lessees to report most leases as assets and liabilities on the balance sheet. The Company is currently evaluating the potential impact of adopting this guidance on its financial statements.

In August 2018, the FASB issued ASU 2018-14, Compensation – Retirements Benefits – Defined Benefit Plans – General (Subtopic 715-20). The ASU is effective for the Company for annual reporting periods beginning after December 15, 2021 with early adoption permitted. This guidance should be applied on a retrospective basis to all periods presented. The ASU will update disclosure requirements for employers that sponsor defined benefit pension or other post retirement plans. The Company is currently evaluating the potential impact of adopting this guidance on its financial statements.

In December 2019, the FASB issued ASU 2019-12, Simplifying the Accounting for Income Taxes (Topic 740) which is intended to simplify various aspects related to accounting for income taxes. This ASU is effective for the Company for annual reporting periods beginning after December 15, 2021 and interim periods therein, with early adoption permitted. The ASU removes certain exceptions to the general principles in Topic 740 and also clarifies and amends existing guidance to improve consistent application. The Company is currently evaluating the potential impact of adopting this guidance on its financial statements.

In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848). The ASU provides optional expedients and exceptions for applying GAAP to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met. Adoption of the provisions of ASU 2020-04 are optional and are effective from March 12, 2020 through December 31, 2022. As of September 26, 2021, the Company did not adopt any expedients or exceptions under ASU 2020-04. The Company will continue to evaluate the impact of ASU 2020-04 and whether it will apply the optional expedients and exceptions.

In August 2020, the FASB issued ASU 2020-06, Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity (Subtopic 470-20). The ASU is effective for the Company for annual reporting periods beginning after December 15, 2023 and interim periods therein, with early adoption permitted as of the beginning of the Company's annual fiscal year. The ASU includes amendments to the guidance on convertible instruments and the derivative scope exception for contracts in an entity’s own equity and simplifies the accounting for convertible instruments which include beneficial conversion features or cash conversion features by removing certain separation models in Subtopic 470-20. Additionally, the ASU requires entities to use the “if-converted” method when calculating diluted earnings per share for convertible instruments. The Company is currently evaluating the potential impact of adopting this guidance on its financial statements.