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v3.19.3

Sales of Receivables (Detail Textual) $ in Millions | Dec. 28, 2018 USD ($)
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MARPA Facility |
MARPA Facility term | 1 year
MARPA Facility maximum commitment | $ 200.0

X
- Definition Transfer of financial assets accounted for as sales. + References No definition available. + Details
Name: | caci_TransferOfFinancialAssetsAccountedForAsSalesAbstract
Namespace Prefix: | caci_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

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- Definition MARPA Facility Term. + References No definition available. + Details
Name: | caci_TransfersOfFinancialAssetsAccountedForAsSalesMarpaFacilityTerm
Namespace Prefix: | caci_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration