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Estimate of obligations due Medicare upon demand due to overages for the inpatient cap and/or overall payment cap.

No definition available.

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Historical collection rate from Medicare.

No definition available.

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Description containing the percentage of the entity's Hospice net Medicare service revenue that is derived from routine care.

No definition available.

Name:	amed_HospiceMedicareRevenueRateAccountedForRoutineCare
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Description containing the visit threshold for a low utilization payment adjustment.

No definition available.

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Balance Type:	na
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Description containing the number of days from the date the request for anticipated payment was received in which the final bill must be submitted to Medicare.

No definition available.

Name:	amed_NetServiceRevenueEpisodePaymentRateDuration
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Data Type:	xbrli:durationItemType
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Description containing the number of days from the date the request for anticipated payment was received in which the final bill must be submitted to Medicare.

No definition available.

Name:	amed_NetServiceRevenuePeriodOfCarePaymentRateDuration
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Non-Medicare Revenue Term Rates as a percentage of Medicare Term Rates

No definition available.

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Percentage of managed care contract volume given opportunity to receive additional payments if certain metrics are met

No definition available.

Name:	amed_PercentageManagedCareContractVolumeAbleToReceiveAdditionalPayments
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Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	duration

Percentage at which total reimbursement is capped if cost of care is unusually costly.

No definition available.

Name:	amed_PercentageOfTotalReimbursementOfOutlierPayment
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Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	duration

Revenue Recognition Multiple Deliverable Arrangements Line Items

No definition available.

Name:	amed_RevenueRecognitionMultipleDeliverableArrangementsLineItemsLineItems
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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-42

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482907/825-10-50-21

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482907/825-10-50-20

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482861/275-10-50-18

Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482861/275-10-50-20

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Balance Type:
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Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	us-gaap_StatementBusinessSegmentsAxis=amed_HospiceMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Namespace Prefix:
Data Type:	na
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