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v3.20.1

Sales of Receivables (Detail Textual) $ in Millions | Dec. 27, 2019 USD ($)
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MARPA |
MARPA maturity date | Dec. 24, 2020
MARPA 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 maturity date. + References No definition available. + Details
Name: | caci_TransfersOfFinancialAssetsAccountedForAsSalesMarpaMaturityDate
Namespace Prefix: | caci_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

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