Deferred tax assets operating loss carryforwards federal and state.

No definition available.

Name:	comm_DeferredTaxAssetsOperatingLossCarryforwardsFederalAndState
Namespace Prefix:	comm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Deferred tax assets operating loss carryforwards state and local expiration year.

+ References

No definition available.

+ Details

Name:	comm_DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocalExpirationYear
Namespace Prefix:	comm_
Data Type:	xbrli:gYearItemType
Balance Type:	na
Period Type:	duration

- Definition

Deferred tax assets state tax credit carryforwards.

+ References

No definition available.

+ Details

Name:	comm_DeferredTaxAssetsStateTaxCreditCarryforwards
Namespace Prefix:	comm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Deferred tax assets tax credit carryforward expiration year.

+ References

No definition available.

+ Details

Name:	comm_DeferredTaxAssetsTaxCreditCarryforwardExpirationYear
Namespace Prefix:	comm_
Data Type:	xbrli:gYearItemType
Balance Type:	na
Period Type:	duration

- Definition

Recognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations

+ References

No definition available.

+ Details

Name:	comm_RecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations
Namespace Prefix:	comm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Schedule of income taxes.

+ References

No definition available.

+ Details

Name:	comm_ScheduleOfIncomeTaxesLineItems
Namespace Prefix:	comm_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Statute of limitations from date tax return is filed period maximum.

+ References

No definition available.

+ Details

Name:	comm_StatuteOfLimitationsFromDateTaxReturnIsFiledPeriodMaximum
Namespace Prefix:	comm_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Statute of limitations from date tax return is filed period minimum.

+ References

No definition available.

+ Details

Name:	comm_StatuteOfLimitationsFromDateTaxReturnIsFiledPeriodMinimum
Namespace Prefix:	comm_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Unrecognized tax benefits reductions resulting from lapse of applicable statute of limitations and changes in facts and circumstances.

+ References

No definition available.

+ Details

Name:	comm_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitationsAndChangesInFactsAndCircumstances
Namespace Prefix:	comm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Valuation allowance on deferred tax assets other.

+ References

No definition available.

+ Details

Name:	comm_ValuationAllowanceOnDeferredTaxAssetsOther
Namespace Prefix:	comm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible domestic operating loss carryforwards. Excludes state and local operating loss carryforwards.

+ References

+ Details

Name:	us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsDomestic
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible foreign operating loss carryforwards.

+ References

+ Details

Name:	us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsForeign
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible state and local operating loss carryforwards.

+ References

+ Details

Name:	us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible foreign tax credit carryforwards.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-6

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 8
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-8

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-3

+ Details

Name:	us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsForeign
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of deferred tax liability attributable to taxable temporary differences from undistributed earnings of subsidiary and other recognized entity not within country of domicile. Includes, but is not limited to, other basis differences.

+ References

+ Details

Name:	us-gaap_DeferredTaxLiabilitiesUndistributedForeignEarnings
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of estimated penalties and interest accrued as of the balance sheet date arising from income tax examinations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 15
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-15

+ Details

Name:	us-gaap_IncomeTaxExaminationPenaltiesAndInterestAccrued
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The sum of the amounts of estimated penalties and interest recognized in the period arising from income tax examinations.

+ References

+ Details

Name:	us-gaap_IncomeTaxExaminationPenaltiesAndInterestExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The portion of the valuation allowance pertaining to the deferred tax asset representing potential future taxable deductions from net operating loss carryforwards for which it is more likely than not that a tax benefit will not be realized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-2

+ Details

Name:	us-gaap_OperatingLossCarryforwardsValuationAllowance
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 15A
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-15A

+ Details

Name:	us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	srt_ConsolidatedEntitiesAxis=srt_SubsidiariesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TaxCreditCarryforwardAxis=comm_ForeignCarryforwardsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_IncomeTaxAuthorityAxis=us-gaap_StateAndLocalJurisdictionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TaxCreditCarryforwardAxis=comm_FederalCarryforwardsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_IncomeTaxAuthorityAxis=us-gaap_DomesticCountryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_IncomeTaxAuthorityAxis=us-gaap_ForeignCountryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TaxCreditCarryforwardAxis=comm_StateCarryforwardsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_IncomeTaxAuthorityAxis=comm_FederalAndStateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Schedule Of Income Taxes [Line Items]
Foreign net operating loss carryforwards	$ 582.4
Foreign tax credit carryforwards	11.0
Net operating loss carryforward, valuation allowance	569.3
Federal and State net operating loss carryforwards	158.8
Federal net operating loss carryforwards	4.2
State net operating loss carryforwards	38.3
State tax credit carryforwards	67.4
Valuation allowance established against other deferred tax assets	2.6
Deferred tax liability related to undistributed foreign earnings	21.4	$ 20.6
Unrecognized tax benefits	110.7
Reduction of penalties in next twelve months	8.0
Interest and penalties	5.4	9.4
Net expense (benefit) for interest and penalties recognized	$ (4.0)	$ 0.1	$ (0.1)
Federal, state and local tax returns filling limitation, minimum	3 years			3 years
Federal, state and local tax returns filling limitation, maximum	4 years
Recognized amount related to the lapse of applicable statutes	$ (2.3)
CommScope Technologies Finance LLC [Member]
Schedule Of Income Taxes [Line Items]
Federal, state and local tax returns filling limitation, minimum	3 years
Federal, state and local tax returns filling limitation, maximum	7 years
Foreign Carryforwards [Member]
Schedule Of Income Taxes [Line Items]
Foreign tax credit carryforwards	$ 20.0
Foreign Carryforwards [Member] \| Minimum [Member]
Schedule Of Income Taxes [Line Items]
Expiration date of tax credit	2024
Foreign Carryforwards [Member] \| Minimum [Member] \| State and Local Jurisdiction [Member]
Schedule Of Income Taxes [Line Items]
Expiration date of operating loss	2024
Federal Carryforwards [Member] \| Domestic Tax Authority [Member]
Schedule Of Income Taxes [Line Items]
Net operating loss carryforward, valuation allowance	$ 20.0
Federal Carryforwards [Member] \| Minimum [Member]
Schedule Of Income Taxes [Line Items]
Expiration date of tax credit	2031
Federal Carryforwards [Member] \| Minimum [Member] \| U.S. Foreign Tax Authority [Member]
Schedule Of Income Taxes [Line Items]
Expiration date of tax credit	2029
State Carryforwards [Member] \| State and Local Jurisdiction [Member]
Schedule Of Income Taxes [Line Items]
Net operating loss carryforward, valuation allowance	$ 87.8
State Carryforwards [Member] \| Federal and State [Member]
Schedule Of Income Taxes [Line Items]
Net operating loss carryforward, valuation allowance	$ 158.8
State Carryforwards [Member] \| Minimum [Member] \| State and Local Jurisdiction [Member]
Schedule Of Income Taxes [Line Items]
Expiration date of tax credit	2024
Expiration date of operating loss	2024