Goodwill impairment analysis fair value assumptions discount rate.

No definition available.

Name:	adus_GoodwillImpairmentAnalysisFairValueAssumptionsDiscountRate
Namespace Prefix:	adus_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Goodwill impairment analysis fair value assumptions long-term revenue growth rate.

+ References

No definition available.

+ Details

Name:	adus_GoodwillImpairmentAnalysisFairValueAssumptionsLongTermRevenueGrowthRate
Namespace Prefix:	adus_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274

+ Details

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

- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_FiniteLivedIntangibleAssetUsefulLife
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Remaining amortization period of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 926
-SubTopic 20
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=120154696&loc=d3e54445-107959

+ Details

Name:	us-gaap_FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

+ Details

Name:	us-gaap_FinitelivedIntangibleAssetsAcquired1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585

+ Details

Name:	us-gaap_GainLossOnDispositionOfAssets1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(10)(1))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=120320667&loc=SL49117168-202975

Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 852
-SubTopic 10
-Section 55
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266

+ Details

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

- Definition

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13854-109267

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13777-109266

+ Details

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

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

- Definition

Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267

+ Details

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

- Definition

Percentage of fair value of reporting unit in excess of carrying amount.

+ References

No definition available.

+ Details

Name:	us-gaap_ReportingUnitPercentageOfFairValueInExcessOfCarryingAmount
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Details

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

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=adus_StateLicensesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_CustomerRelationshipsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_IncomeStatementLocationAxis=us-gaap_GeneralAndAdministrativeExpenseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=adus_ArmadaSkilledHomecareMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_NoncompeteAgreementsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=adus_SummitHomeHealthLLCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=adus_QueenCityHospiceLLCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_TradeNamesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=adus_CountyHomemakersMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=adus_APlusHealthCaresIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=adus_HospiceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=adus_HomeHealthSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=adus_HomeHealthMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=adus_PersonalCareMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=adus_CountyHomemakersAPlusHealthCareAndSunLifeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Goodwill and Intangible Assets (Narrative) (Details) - USD ($)						12 Months Ended
	Aug. 01, 2021	Dec. 04, 2020	Nov. 01, 2020	Jul. 01, 2020	Jun. 01, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Oct. 01, 2021
Goodwill [Line Items]
Goodwill						$ 504,392,000	$ 469,072,000	$ 275,368,000
Adjustment of goodwill related to divestiture							1,167,000
Discount rate used in goodwill impairment analysis						8.50%
Goodwill impairment charge						$ 0	0	0
Amortization expense						$ 8,500,000	7,100,000	6,600,000
Weighted average remaining useful lives of identifiable intangible assets						9 years 3 months 18 days
Minimum [Member]
Goodwill [Line Items]
Intangible assets, estimated useful lives						1 year
Long-term revenue growth rate assumed in goodwill impairment analysis						3.00%
Maximum [Member]
Goodwill [Line Items]
Intangible assets, estimated useful lives						25 years
Long-term revenue growth rate assumed in goodwill impairment analysis						5.00%
Percent of fair value of reporting unit excess of carrying value						1.50%
Customer and Referral Relationships [Member] \| Minimum [Member]
Goodwill [Line Items]
Intangible assets, estimated useful lives						5 years
Customer and Referral Relationships [Member] \| Maximum [Member]
Goodwill [Line Items]
Intangible assets, estimated useful lives						10 years
State Licenses [Member]
Goodwill [Line Items]
Finite-lived intangible assets related to acquisition					$ 10,700,000
Customer Relationships [Member]
Goodwill [Line Items]
Finite-lived intangible assets related to acquisition					$ 4,700,000
General and Administrative Expense [Member]
Goodwill [Line Items]
Loss of disposal of assets							300,000
Armada Skilled Homecare [Member]
Goodwill [Line Items]
Goodwill	$ 28,438,000
Armada Skilled Homecare [Member] \| State Licenses [Member]
Goodwill [Line Items]
Finite-lived intangible assets related to acquisition						$ 400,000
Armada Skilled Homecare [Member] \| Non-competition Agreements [Member]
Goodwill [Line Items]
Intangible assets, estimated useful lives	5 years
Finite-lived intangible assets related to acquisition	$ 600,000					600,000
Summit Home Health, LLC [Member]
Goodwill [Line Items]
Goodwill									$ 6,500,000
Queen City Hospice [Member]
Goodwill [Line Items]
Goodwill		$ 169,338,000
Queen City Hospice [Member] \| State Licenses [Member]
Goodwill [Line Items]
Finite-lived intangible assets related to acquisition							7,500,000
Queen City Hospice [Member] \| Trade Names [Member]
Goodwill [Line Items]
Intangible assets, estimated useful lives		15 years
Finite-lived intangible assets related to acquisition		$ 11,000,000.0					11,000,000.0
Queen City Hospice [Member] \| Non-competition Agreements [Member]
Goodwill [Line Items]
Intangible assets, estimated useful lives		5 years
Finite-lived intangible assets related to acquisition		$ 1,500,000					1,500,000
County Homemakers [Member]
Goodwill [Line Items]
Goodwill			$ 13,502,000
County Homemakers [Member] \| State Licenses [Member]
Goodwill [Line Items]
Intangible assets, estimated useful lives			8 years
Finite-lived intangible assets related to acquisition			$ 300,000				300,000
County Homemakers [Member] \| Trade Names [Member]
Goodwill [Line Items]
Intangible assets, estimated useful lives			1 year
Finite-lived intangible assets related to acquisition			$ 100,000				100,000
A Plus Health Care, Inc [Member]
Goodwill [Line Items]
Goodwill				$ 9,732,000
A Plus Health Care, Inc [Member] \| Trade Names [Member]
Goodwill [Line Items]
Intangible assets, estimated useful lives				15 years
Finite-lived intangible assets related to acquisition				$ 1,400,000			1,400,000
Hospice [Member]
Goodwill [Line Items]
Goodwill						$ 328,334,000	314,833,000	146,983,000
Adjustment of goodwill related to divestiture							1,167,000
Percent of fair value of reporting unit excess of carrying value						20.00%
Hospice [Member] \| Armada Skilled Homecare [Member]
Goodwill [Line Items]
Goodwill						$ 13,400,000
Hospice [Member] \| Queen City Hospice [Member]
Goodwill [Line Items]
Goodwill							169,200,000
2013 Home Health Business [Member] \| Summit Home Health, LLC [Member]
Goodwill [Line Items]
Goodwill						6,500,000
Home Health [Member]
Goodwill [Line Items]
Goodwill						$ 23,370,000	1,791,000	1,808,000
Percent of fair value of reporting unit excess of carrying value						100.00%
Home Health [Member] \| Armada Skilled Homecare [Member]
Goodwill [Line Items]
Goodwill						$ 15,000,000.0
Personal Care [Member]
Goodwill [Line Items]
Goodwill						$ 152,688,000	152,448,000	$ 126,577,000
Percent of fair value of reporting unit excess of carrying value						100.00%
Personal Care [Member] \| County Homemakers, A Plus and SunLife [Member]
Goodwill [Line Items]
Goodwill							$ 24,700,000