Aggregate Amount Of Dividends And Distributions

No definition available.

Name:	adus_AggregateAmountOfDividendsAndDistributions
Namespace Prefix:	adus_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Leverage Ratio

+ References

No definition available.

+ Details

Name:	adus_LeverageRatio
Namespace Prefix:	adus_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of the fee that accompanies borrowing money under the debt instrument.

+ References

+ Details

Name:	us-gaap_DebtInstrumentFeeAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(2))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

+ Details

Name:	us-gaap_DebtInstrumentMaturityDate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

+ Details

Name:	us-gaap_DeferredFinanceCostsNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

+ Details

Name:	us-gaap_LineOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of increase (decrease) of the credit facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(f))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

+ Details

Name:	us-gaap_LineOfCreditFacilityIncreaseDecreaseForPeriodNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585

+ Details

Name:	us-gaap_ProceedsFromLongTermLinesOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_DebtInstrumentAxis=adus_CreditAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=adus_CapitalOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=adus_DelayedDrawTermLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=adus_TermLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=adus_FederalFundsRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=adus_BasedOnApplicableSeniorLeverageRatioMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=adus_BasedOnApplicableLeverageRatioMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=adus_RestrictionOnDividendsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Long-Term Debt (Narrative) (Details) - USD ($)			9 Months Ended
Long-Term Debt (Narrative) (Details) - USD ($)	Sep. 12, 2019	Oct. 31, 2018	Sep. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Debt issuance costs			$ 1,899,000	$ 2,452,000
Credit Agreement [Member] \| Capital One, National Association [Member]
Debt Instrument [Line Items]
Maximum aggregate loan amount available		$ 269,600,000	219,000,000.0	191,400,000
Debt instrument, maturity date		May 08, 2023
Debt instrument total net leverage ratio		4.25%
Debt issuance costs		$ 900,000
Line of credit outstanding amount			9,300,000	10,000,000.0
Credit Agreement [Member] \| Capital One, National Association [Member] \| Delayed Draw Term Loan [Member]
Debt Instrument [Line Items]
Maximum aggregate loan amount available		$ 19,600,000
Credit Agreement [Member] \| Capital One, National Association [Member] \| Term Loan [Member]
Debt Instrument [Line Items]
Line of credit outstanding amount			$ 18,400,000	$ 18,900,000
Debt instrument stated interest rate			1.89%	3.45%
Credit Agreement [Member] \| Capital One, National Association [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Debt instrument total net leverage ratio		3.75%
Credit Agreement [Member] \| Capital One, National Association [Member] \| Federal Funds Rate [Member]
Debt Instrument [Line Items]
Debt instrument variable interest rate margin		0.50%
Credit Agreement [Member] \| Capital One, National Association [Member] \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Debt instrument variable interest rate margin		1.00%
Credit Agreement [Member] \| Capital One, National Association [Member] \| London Interbank Offered Rate (LIBOR) \| Minimum [Member]
Debt Instrument [Line Items]
Debt instrument variable interest rate margin		0.00%
Credit Agreement [Member] \| Capital One, National Association [Member] \| Based On Applicable Senior Leverage Ratio \| Minimum [Member]
Debt Instrument [Line Items]
Debt instrument variable interest rate margin		0.75%
Credit Agreement [Member] \| Capital One, National Association [Member] \| Based On Applicable Senior Leverage Ratio \| Maximum [Member]
Debt Instrument [Line Items]
Debt instrument variable interest rate margin		1.50%
Credit Agreement [Member] \| Capital One, National Association [Member] \| Based On Applicable Leverage Ratio [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Debt instrument variable interest rate margin		1.75%
Credit Agreement [Member] \| Capital One, National Association [Member] \| Based On Applicable Leverage Ratio [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Debt instrument variable interest rate margin		2.50%
Credit Agreement [Member] \| Capital One, National Association [Member] \| Restriction on Dividends [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Aggregate amount of dividends and distributions	$ 7,500,000
Credit Agreement [Member] \| Revolving Credit Loan [Member] \| Capital One, National Association [Member]
Debt Instrument [Line Items]
Maximum aggregate loan amount available	300,000,000.0	$ 250,000,000.0
Increase in credit facility	50,000,000.0
Debt issuance costs	$ 400,000
Proceeds from line of credit			$ 0
Line of credit outstanding amount			$ 43,400,000	$ 43,400,000
Debt instrument stated interest rate			1.89%	3.44%
Credit Agreement [Member] \| Revolving Credit Loan [Member] \| Capital One, National Association [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Fee charged on unused portion of revolving credit facility	0.20%
Credit Agreement [Member] \| Revolving Credit Loan [Member] \| Capital One, National Association [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Fee charged on unused portion of revolving credit facility	0.35%