XML 68 R57.htm IDEA: XBRL DOCUMENT
v3.20.4

Sales of Receivables - Summary of MARPA Activity (Parentheticals) (Detail) - USD ($) $ in Millions | 6 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Transfers And Servicing Of Financial Assets [Abstract] |  |
Cash provided (used) by MARPA | $ (0.2) | $ 4.9

X
- Definition Cash provided (used) by MARPA. + References No definition available. + Details
Name: | caci_CashProvidedUsedByMARPA
Namespace Prefix: | caci_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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