Debt instrument minimum floor rate percentage.

No definition available.

Name:	avah_DebtInstrumentMinimumFloorRatePercentage
Namespace Prefix:	avah_
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Period Type:	duration

- Definition

Swingline loan.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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

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- 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

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Balance Type:	na
Period Type:	duration

- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1D
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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of the cost of borrowed funds accounted for as interest expense for debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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+ Details

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

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Topic 210
-SubTopic 10
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+ Details

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

- Definition

Maximum amount borrowed under the credit facility at any time during the period.

+ References

No definition available.

+ Details

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

- 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

+ Details

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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

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a rate subject to change from time to time.

+ References

+ Details

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

+ References

No definition available.

+ Details

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

- Details

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- Details

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

- Details

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

- Details

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

- Details

Name:	us-gaap_DebtInstrumentAxis=avah_SecondLienTermLoanMember
Namespace Prefix:
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Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_BaseRateMember
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- Details

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- Details

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- Details

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

- Details

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- Details

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- Details

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Long-Term Obligations - Additional Information (Details) - USD ($)				3 Months Ended		9 Months Ended
	Aug. 09, 2022	Dec. 10, 2021	Jul. 15, 2021	Oct. 01, 2022	Oct. 02, 2021	Oct. 01, 2022	Oct. 02, 2021	Jan. 01, 2022
Debt Instrument [Line Items]
Debt issuance costs				$ 34,447,000		$ 34,447,000		$ 37,733,000
Interest expense related to amortization of debt issuance costs				1,600,000	$ 1,400,000	4,900,000	$ 7,200,000
Swingline loans				0		0		0
Fair value of long-term obligations				1,326,300,000		1,326,300,000
Revolving Credit Facility
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity				182,400,000		$ 182,400,000		182,400,000
Revolving Credit Facility \| LIBOR
Debt Instrument [Line Items]
Interest rate margin on borrowings						3.75%
Letter of Credit
Debt Instrument [Line Items]
Issued letter of credit				17,600,000		$ 17,600,000		17,600,000
Term Loan
Debt Instrument [Line Items]
Debt issuance costs				34,400,000		$ 34,400,000		37,700,000
Second Lien Term Loan
Debt Instrument [Line Items]
Debt instrument minimum floor rate percentage		0.50%
Second Lien Term Loan \| LIBOR
Debt Instrument [Line Items]
Interest rate margin on borrowings		7.00%				7.00%
Second Lien Term Loan \| Annual Base Rate
Debt Instrument [Line Items]
Interest rate margin on borrowings		6.00%
Second Lien Term Loan \| Federal Funds Effective Rate
Debt Instrument [Line Items]
Interest rate margin on borrowings		0.50%
Second Lien Term Loan \| One Month LIBOR Rate
Debt Instrument [Line Items]
Interest rate margin on borrowings		1.00%
2021 Extended Term Loan \| LIBOR
Debt Instrument [Line Items]
Interest rate margin on borrowings						3.75%
Delayed Draw Term Loan Facility
Debt Instrument [Line Items]
Debt issuance costs				$ 1,900,000		$ 1,900,000		$ 3,200,000
Amount borrowed	$ 60,000,000.0
Amount of remaining available borrowing	$ 140,000,000.0
Delayed Draw Term Loan Facility \| LIBOR
Debt Instrument [Line Items]
Interest rate margin on borrowings						3.75%
2021 Extended Term Loan and Delayed Draw Term Loans \| LIBOR \| Minimum
Debt Instrument [Line Items]
Debt instruments, variable interest rate			0.50%
2021 Extended Term Loan and Delayed Draw Term Loans \| LIBOR \| Maximum
Debt Instrument [Line Items]
Interest rate margin on borrowings			3.75%
2021 Extended Term Loan and Delayed Draw Term Loans \| Annual Base Rate \| Minimum
Debt Instrument [Line Items]
Debt instruments, variable interest rate			2.00%
Interest rate margin on borrowings			2.75%