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v3.26.1

Sales of Receivables - Narrative (Details) $ in Millions | Dec. 19, 2025 USD ($)
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Transfers and Servicing of Financial Assets [Abstract] |
MARPA maximum commitment | $ 350.0

X
- Definition MARPA maximum commitment. + References No definition available. + Details
Name: | caci_TransfersOfFinancialAssetsAccountedForAsSalesMarpaMaximumCommitment
Namespace Prefix: | caci_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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