Ratio of adjusted earnings before interest, taxes, depreciation and amortization to cash interest charges

No definition available.

Name:	amed_ConsolidatedInterestCoverageRatio
Namespace Prefix:	amed_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Credit Facility, Maximum Allowable Consolidated Leverage Ratio Multiple

+ References

No definition available.

+ Details

Name:	amed_CreditFacilityMaximumAllowableConsolidatedLeverageRatioMultiple
Namespace Prefix:	amed_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Credit facility maximum allowable consolidated leverage ratio as defined in the Company's Credit Agreement

+ References

No definition available.

+ Details

Name:	amed_Creditfacilitymaximumallowableconsolidatedleverageratio
Namespace Prefix:	amed_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt Instrument Interest Additional Interest Above Eurodollar Rate

+ References

No definition available.

+ Details

Name:	amed_DebtInstrumentInterestAdditionalInterestAboveEurodollarRate
Namespace Prefix:	amed_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument Interest Additional Interest Above Federal Fund Rate

+ References

No definition available.

+ Details

Name:	amed_DebtInstrumentInterestAdditionalInterestAboveFederalFundRate
Namespace Prefix:	amed_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The percentage of the Term Loan that is required as periodic payments including both interest and principal payments

+ References

No definition available.

+ Details

Name:	amed_DebtInstrumentPeriodicPaymentPercentage
Namespace Prefix:	amed_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Letters of Credit, maximum commitment

+ References

No definition available.

+ Details

Name:	amed_LettersofCreditmaximumcommitment
Namespace Prefix:	amed_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line Of Credit Facility Additional Borrowing Capacity

+ References

No definition available.

+ Details

Name:	amed_LineOfCreditFacilityAdditionalBorrowingCapacity
Namespace Prefix:	amed_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage of adjusted EBITDA that guarantor subsidiaries represent

+ References

No definition available.

+ Details

Name:	amed_PercentageOfEarningsBeforeInterestTaxesDepreciationAndAmortizationFromSubsidiaries
Namespace Prefix:	amed_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of consolidated net revenues and adjusted EBITDA that guarantor wholly-owned subsidiaries represent

+ References

No definition available.

+ Details

Name:	amed_PercentageOfRevenueAndOfEarningsBeforeInterestTaxesDepreciationAndAmortizationFromWhollyOwnedSubsidiaries
Namespace Prefix:	amed_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Proceeds Received From Loan Party Of Subsidiary

+ References

No definition available.

+ Details

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

- Definition

Swing Line Facility included within Revolving Credit Facility

+ References

No definition available.

+ Details

Name:	amed_SwingLineFacility
Namespace Prefix:	amed_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Ratio of debt to earnings before interest, taxes, depreciation and amortization.

+ References

No definition available.

+ Details

Name:	amed_TotalLeverageRatio
Namespace Prefix:	amed_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- 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:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI https://asc.fasb.org/extlink&oid=123466204&loc=SL6031897-161870

Reference 2: 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 https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910

Reference 3: 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 https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 4: 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 https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878

+ Details

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

- Definition

Description of reference rate used for variable rate of debt instrument.

+ References

No definition available.

+ Details

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

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=124435984&loc=d3e28551-108399

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI https://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=124429444&loc=SL124452920-239629

Reference 5: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 55
-Paragraph 69C
-URI https://asc.fasb.org/extlink&oid=123466577&loc=SL123495737-112612

Reference 6: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 55
-Paragraph 69B
-URI https://asc.fasb.org/extlink&oid=123466577&loc=SL123495735-112612

+ Details

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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:	dtr-types: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 YYYY-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 https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (d)
-URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611

Reference 3: 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 https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

+ Details

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

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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

- 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

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 210.5-02.19(b),22(b))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

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

- Definition

Weighted average interest rate of long-term debt outstanding calculated over time.

+ References

No definition available.

+ Details

Name:	us-gaap_LongTermDebtWeightedAverageInterestRateOverTime
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The cash outflow for loan and debt issuance costs.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3291-108585

+ Details

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

- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal 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 15
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3291-108585

+ Details

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

- Details

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

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_CapitalLeaseObligationsMember
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_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

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

- Details

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

- Details

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

- Details

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

- Details

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

- Details

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

- Details

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

- Details

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

- Details

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

LONG-TERM OBLIGATIONS - Narrative (Details) $ in Thousands			12 Months Ended			26 Months Ended	34 Months Ended	60 Months Ended
LONG-TERM OBLIGATIONS - Narrative (Details) $ in Thousands	Jul. 30, 2021 USD ($)	Jun. 29, 2018 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Sep. 30, 2023	Jul. 30, 2026	Jul. 30, 2026	Feb. 04, 2019 USD ($)
Debt Instrument [Line Items]
Principal payments of long-term obligations			$ 13,296	$ 9,143	$ 10,249
Consolidated leverage ratio			1.7
Consolidated interest coverage ratio			11.6
Principal amount			$ 438,400	449,600
Payments of Financing Costs			0	2,792	$ 0
Credit Agreement [Member]
Debt Instrument [Line Items]
Swing Line Facility		$ 25,000
Letters of Credit, maximum commitment		60,000
Finance Leases [Member]
Debt Instrument [Line Items]
Principal amount			$ 2,300	1,600
Finance Leases [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Interest rate (percent)			2.10%
Finance Leases [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Interest rate (percent)			5.30%
Second Amended Credit Agreement
Debt Instrument [Line Items]
Additional interest rate above Federal Fund rate (percent)	0.50%
Additional interest rate above Eurodollar Rate (percent)	1.00%
Percentage of consolidated revenue and adjusted EBITDA that guarantor wholly-owned subsidiaries represent	95.00%
Percentage of adjusted EBITDA that guarantor subsidiaries represent	70.00%
Payments of Financing Costs				2,800
Second Amended Credit Agreement \| Subsequent Event [Member]
Debt Instrument [Line Items]
Maturity date								Jul. 30, 2026
Second Amended Credit Agreement \| Minimum [Member]
Debt Instrument [Line Items]
Proceeds Received From Loan Party Of Subsidiary	$ 5,000
Second Amended Credit Agreement \| Base Rate [Member]
Debt Instrument [Line Items]
Description of variable rate basis	Fluctuating rate per annum equal to the highest of (a) the federal funds rate plus 0.50% per annum, (b) the prime rate of interest established by the Administrative Agent, and (c) the Eurodollar Rate for an interest period of one month plus 1% per annum.
Basis spread on variable rate (percent)			0.50%
Second Amended Credit Agreement \| Eurodollar [Member]
Debt Instrument [Line Items]
Description of variable rate basis	Rate at which Eurodollar deposits in the London interbank market for an interest period of one, two, three or six months
Basis spread on variable rate (percent)			1.50%
Promissory Notes [Member]
Debt Instrument [Line Items]
Principal amount			$ 200	$ 800
Interest rate (percent)			6.50%
Five Hundred Fifty Million Revolving Credit Facility [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt Instrument, face amount			$ 550,000
Weighted Average Interest Rate			3.40%	1.90%
Maturity date			Jul. 30, 2026
Remaining availability under the revolving credit facility			$ 520,400
Principal amount			0	$ 0
Five Hundred Fifty Million Revolving Credit Facility [Member] \| Letter of Credit [Member]
Debt Instrument [Line Items]
Outstanding letters of credit			29,600
Five Hundred Fifty Million Revolving Credit Facility [Member] \| Credit Agreement [Member]
Debt Instrument [Line Items]
Debt Instrument, face amount		550,000
Credit facility, maximum additional borrowing capacity		$ 125,000
Credit facility, maximum allowable consolidated leverage ratio multiple		0.5
Credit facility maximum allowable consolidated leverage ratio		3.0
Maturity date		Jun. 29, 2023
Five Hundred Fifty Million Revolving Credit Facility [Member] \| Amended Credit Agreement [Member]
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity									$ 725,000
Debt Instrument, face amount									550,000
Five Hundred Fifty Million Revolving Credit Facility [Member] \| Second Amended Credit Agreement
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity	$ 1,000,000
Debt Instrument, face amount	550,000
One Hundred Seventy Five Million Term Loan Facility [Member] \| Amended Credit Agreement [Member]
Debt Instrument [Line Items]
Debt Instrument, face amount									$ 175,000
Four Hundred Fifty Million Term Loan Facility [Member] \| Term Loan [Member]
Debt Instrument [Line Items]
Debt Instrument, face amount			$ 450,000
Weighted Average Interest Rate			3.20%	1.60%
Maturity date			Jul. 30, 2026
Principal amount			$ 435,900	$ 447,200
Four Hundred Fifty Million Term Loan Facility [Member] \| Second Amended Credit Agreement
Debt Instrument [Line Items]
Debt Instrument, face amount	$ 450,000
Four Hundred Fifty Million Term Loan Facility [Member] \| Second Amended Credit Agreement \| Subsequent Event [Member]
Debt Instrument [Line Items]
Debt Instrument Periodic Payment Percentage						0.625%	1.25%