Name:	amed_AdditionalFundingDistributedToHealthcareProviders
Namespace Prefix:	amed_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Funding for healthcare providers, including hospitals provided by the Coronavirus Aid, Relief and Economic Security (CARES) Act

No definition available.

Name:	amed_FundingForHealthcareProvidersIncludingHospitals
Namespace Prefix:	amed_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Funding immediately distributed to healthcare providers based on their 2019 Medicare Fee-For-Service reimbursements provided by the Coronavirus Aid, Relief and Economic Security (CARES) Act

No definition available.

Name:	amed_FundingImmediatelyDistributedToHealthcareProvidersBasedOnTheir2019MedicareFeeForServiceReimbursements
Namespace Prefix:	amed_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Funding received by the Company from the Coronavirus Aid Relief and Economic Security (CARES) Act

No definition available.

Name:	amed_FundingReceivedFromCARESAct
Namespace Prefix:	amed_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Payments related to tax asset and working capital

No definition available.

Name:	amed_Paymentsrelatedtotaxassetandworkingcapital
Namespace Prefix:	amed_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=116859721&loc=d3e6613-128477

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=116859721&loc=d3e6578-128477

Name:	us-gaap_BusinessCombinationConsiderationTransferred1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

The number of businesses acquired by the entity during the period.

No definition available.

Name:	us-gaap_NumberOfBusinessesAcquired
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

No definition available.