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Details of Certain Balance Sheet Accounts (Schedule of Accrued Expenses) (Parenthetical) (Details) $ in Millions | Dec. 31, 2020 USD ($)
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CARES Act [Member] |
Schedule Of Accrued Expenses [Line Items] |
Deferred payor advance | $ 4.2

X
- Definition Deferred payor advance. + References No definition available. + Details
Name: | adus_DeferredPayorAdvance
Namespace Prefix: | adus_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Schedule of accrued expenses. + References No definition available. + Details
Name: | adus_ScheduleOfAccruedExpensesLineItems
Namespace Prefix: | adus_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_StatutoryAccountingPracticesByJurisdictionAxis=adus_CoronavirusAidReliefAndEconomicSecurityActMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |