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v3.25.1

Commitments and Contingencies Commitment and Contingencies (Details) | Mar. 31, 2025
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Subject to Capital Lease with TMO or AT&T [Member] |
Other Commitments [Line Items] |
Purchase Option, Percentage of Towers | 54.00%

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- Definition Purchase Option, Percentage of Towers + References No definition available. + Details
Name: | cci_PurchaseOptionPercentageofTowers
Namespace Prefix: | cci_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | instant

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

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- Details
Name: | cci_ContractualTermsAxis=cci_SubjectToCapitalLeaseWithTMOOrATTMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |