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Commitments And Contingencies (Detail Textuals) (USD $)
6 Months Ended
Dec. 31, 2014
Contract
Loss Contingencies [Line Items]  
Number of company contracts subpoenaed 1caci_NumberOfCompanyContractsSubpoenaed
Accrued estimates of the possible losses, low $ 0us-gaap_ProductLiabilityContingencyLossExposureNotAccruedLowEstimate
Accrued estimates of the possible losses, high 1,800,000us-gaap_ProductLiabilityContingencyLossExposureNotAccruedHighEstimate
Value added tax examination, range of possible losses 3,000,000caci_ValueAddedTaxesExaminationEstimateOfPossibleLoss
Minimum  
Loss Contingencies [Line Items]  
Sales and use tax examination, range of possible losses 2,800,000caci_SalesAndUseTaxExaminationEstimateOfPossibleLoss
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Maximum  
Loss Contingencies [Line Items]  
Sales and use tax examination, range of possible losses $ 4,800,000caci_SalesAndUseTaxExaminationEstimateOfPossibleLoss
/ us-gaap_RangeAxis
= us-gaap_MaximumMember