Discontinued Operations and Assets Held For Sale - Additional Information (Detail)
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9 Months Ended |
12 Months Ended |
3 Months Ended |
Sep. 30, 2013
Agencies
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Dec. 31, 2014
Agencies
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Dec. 31, 2013
Agencies
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Dec. 31, 2012
Agencies
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Jun. 30, 2014
Agencies
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Mar. 31, 2014
Agencies
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Home Health [Member] |
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Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |
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Number of care centers consolidated |
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21amed_NumberOfCareCentersConsolidated / us-gaap_StatementBusinessSegmentsAxis = amed_HomeHealthMember |
41amed_NumberOfCareCentersConsolidated / us-gaap_StatementBusinessSegmentsAxis = amed_HomeHealthMember |
5amed_NumberOfCareCentersConsolidated / us-gaap_StatementBusinessSegmentsAxis = amed_HomeHealthMember |
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Number of care centers closed |
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22amed_NumberOfCareCentersClosed / us-gaap_StatementBusinessSegmentsAxis = amed_HomeHealthMember |
10amed_NumberOfCareCentersClosed / us-gaap_StatementBusinessSegmentsAxis = amed_HomeHealthMember |
3amed_NumberOfCareCentersClosed / us-gaap_StatementBusinessSegmentsAxis = amed_HomeHealthMember |
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Number of care centers available for sale |
28amed_NumberOfCareCentersAvailableForSale / us-gaap_StatementBusinessSegmentsAxis = amed_HomeHealthMember |
0amed_NumberOfCareCentersAvailableForSale / us-gaap_StatementBusinessSegmentsAxis = amed_HomeHealthMember |
3amed_NumberOfCareCentersAvailableForSale / us-gaap_StatementBusinessSegmentsAxis = amed_HomeHealthMember |
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Number of care centers sold |
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19amed_NumberOfCareCentersSold / us-gaap_StatementBusinessSegmentsAxis = amed_HomeHealthMember |
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Number of care centers included in discontinued operations |
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32amed_NumberOfCareCentersIncludedInDiscontinuedOperations / us-gaap_StatementBusinessSegmentsAxis = amed_HomeHealthMember |
3amed_NumberOfCareCentersIncludedInDiscontinuedOperations / us-gaap_StatementBusinessSegmentsAxis = amed_HomeHealthMember |
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Home Health [Member] | Assets Held-for-sale [Member] |
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Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |
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Number of care centers consolidated |
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1amed_NumberOfCareCentersConsolidated / us-gaap_LongLivedAssetsHeldForSaleByAssetTypeAxis = us-gaap_AssetsHeldForSaleMember / us-gaap_StatementBusinessSegmentsAxis = amed_HomeHealthMember |
Number of care centers sold |
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1amed_NumberOfCareCentersSold / us-gaap_LongLivedAssetsHeldForSaleByAssetTypeAxis = us-gaap_AssetsHeldForSaleMember / us-gaap_StatementBusinessSegmentsAxis = amed_HomeHealthMember |
1amed_NumberOfCareCentersSold / us-gaap_LongLivedAssetsHeldForSaleByAssetTypeAxis = us-gaap_AssetsHeldForSaleMember / us-gaap_StatementBusinessSegmentsAxis = amed_HomeHealthMember |
Hospice [Member] |
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Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |
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Number of care centers consolidated |
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4amed_NumberOfCareCentersConsolidated / us-gaap_StatementBusinessSegmentsAxis = amed_HospiceMember |
5amed_NumberOfCareCentersConsolidated / us-gaap_StatementBusinessSegmentsAxis = amed_HospiceMember |
4amed_NumberOfCareCentersConsolidated / us-gaap_StatementBusinessSegmentsAxis = amed_HospiceMember |
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Number of care centers closed |
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4amed_NumberOfCareCentersClosed / us-gaap_StatementBusinessSegmentsAxis = amed_HospiceMember |
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Number of care centers sold |
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1amed_NumberOfCareCentersSold / us-gaap_StatementBusinessSegmentsAxis = amed_HospiceMember |
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Number of care centers included in discontinued operations |
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1amed_NumberOfCareCentersIncludedInDiscontinuedOperations / us-gaap_StatementBusinessSegmentsAxis = amed_HospiceMember |
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