XML 74 R58.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Summary of Significant Accounting Policies - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands | Sep. 26, 2021 | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | --- | ---
Finite-lived intangible assets: |  |  |
Gross Carrying Amount | $ 300,355 | $ 283,644 | $ 234,418
Accumulated Amortization | (42,253) | (31,862) | (20,780)
Net Carrying Value | 258,102 | 251,782 | 213,638
Customer Relationships [Member] |  |  |
Finite-lived intangible assets: |  |  |
Gross Carrying Amount | 259,907 | 245,274 | 198,768
Accumulated Amortization | (29,878) | (21,819) | (13,581)
Net Carrying Value | 230,029 | 223,455 | 185,187
Trade Names [Member] |  |  |
Finite-lived intangible assets: |  |  |
Gross Carrying Amount | 13,775 | 13,775 | 13,775
Accumulated Amortization | (3,906) | (3,369) | (2,656)
Net Carrying Value | 9,869 | 10,406 | 11,119
Indefinite-lived intangible assets: |  |  |
Gross Carrying Amount | 163,768 | 152,740 | 119,868
Net Carrying Value |  | 152,740 | 119,868
Technology [Member] |  |  |
Finite-lived intangible assets: |  |  |
Gross Carrying Amount | 26,673 | 24,595 | 21,875
Accumulated Amortization | (8,469) | (6,674) | (4,543)
Net Carrying Value | $ 18,204 | $ 17,921 | $ 17,332

X
- Definition Indefinite Lived Intangible Assets Net Carrying value. + References No definition available. + Details
Name: | hlly_IndefiniteLivedIntangibleAssetsNetCarryingValue
Namespace Prefix: | hlly_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 928 -SubTopic 340 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 926 -SubTopic 20 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=120154696&loc=d3e54445-107959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsNetAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
Name: | us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwillAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_CustomerRelationshipsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_TradeNamesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=hlly_TechnologyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |