Cash burn rate, threshold amount.

No definition available.

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Balance Type:	credit
Period Type:	instant

- Definition

Debt instrument, interest payment period.

+ References

No definition available.

+ Details

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- Definition

Line of credit facility, additional incremental amount.

+ References

No definition available.

+ Details

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Namespace Prefix:	avdx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line of credit facility, minimum increment amount.

+ References

No definition available.

+ Details

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Namespace Prefix:	avdx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Number of promissory notes executed.

+ References

No definition available.

+ Details

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Namespace Prefix:	avdx_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of amortization expense attributable to debt issuance costs.

+ References

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

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

- Definition

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

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+ Details

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

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

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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

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

- Definition

Amount of the required periodic payments including both interest and principal payments.

+ References

+ Details

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

- Definition

Amount of the required periodic payments applied to principal.

+ References

+ Details

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Balance Type:	debit
Period Type:	duration

- Definition

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

+ References

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Balance Type:	debit
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- 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.

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+ Details

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

- Definition

Date the credit facility terminates, in YYYY-MM-DD format.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
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

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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

- Definition

The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer.

+ References

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-SubTopic 10
-Section 45
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Balance Type:	debit
Period Type:	duration

- Details

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Balance Type:
Period Type:

- Details

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- Details

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Period Type:

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Data Type:	na
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Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
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Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=avdx_TwoThousandAndNineteenTermLoanFacilityMember
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Balance Type:
Period Type:

- Details

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Balance Type:
Period Type:

- Details

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Balance Type:
Period Type:

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
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Balance Type:
Period Type:

- Details

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Period Type:

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Period Type:

Long-Term Debt - Additional Information (Details)		3 Months Ended		6 Months Ended
Long-Term Debt - Additional Information (Details)	Oct. 01, 2019 USD ($)	Jun. 30, 2022 USD ($) PromissoryNote	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($) PromissoryNote	Jun. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)
Debt Instrument [Line Items]
Deferred financing costs		$ 2,211,000		$ 2,211,000		$ 2,843,000
Amortization of deferred financing costs		340,000	$ 340,000	679,000	$ 679,000
2019 Credit Agreement
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 133,500,000	$ 21,157,000		21,157,000
Cash burn rate, threshold amount	$ (2,500,000)
2019 Credit Agreement \| First Three Years of Credit Agreement \| Minimum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	8.00%
2019 Credit Agreement \| First Three Years of Credit Agreement \| Maximum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	9.00%
2019 Credit Agreement \| After Third Anniversary of Credit Agreement \| Minimum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	7.50%
2019 Credit Agreement \| After Third Anniversary of Credit Agreement \| Maximum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	8.00%
2019 Credit Agreement \| Base Rate \| Minimum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	0.50%
2019 Credit Agreement \| Base Rate \| Maximum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	4.00%
2019 Credit Agreement \| LIBOR \| Maximum
Debt Instrument [Line Items]
Debt instrument, interest payment period	3 months
2019 Term Loans
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 95,000,000
Line of credit facility, maturity date	Apr. 01, 2024
2019 Term Loans \| First Three Years of Credit Agreement \| Maximum
Debt Instrument [Line Items]
Interest rate	4.50%
Delayed Draw Term Loan
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 30,000,000
Line of credit facility, minimum increment amount	5,000,000
Line of credit facility, additional incremental amount	$ 500,000
Line of credit facility, unused capacity, commitment fee percentage	0.50%
Line of credit facility, maturity date	Oct. 01, 2021
Interest DDTL
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 18,500,000
Line of credit facility, additional borrowing				$ 2,367,000
Line of credit facility, maturity date	Apr. 01, 2024
Interest DDTL \| Minimum \| 10.0% Delayed Draw Term Loan
Debt Instrument [Line Items]
Interest rate		10.00%		10.00%
Interest DDTL \| Maximum \| 10.0% Delayed Draw Term Loan
Debt Instrument [Line Items]
Interest rate		10.10%		10.10%
2019 Revolver
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 20,000,000
Line of credit facility, minimum increment amount	500,000
Line of credit facility, additional incremental amount	$ 100,000
Line of credit facility, unused capacity, commitment fee percentage	0.50%
Line of credit facility, maturity date	Oct. 01, 2023
Line of credit facility, outstanding amount		$ 0		$ 0		0
Other Noncurrent Assets and Deposits
Debt Instrument [Line Items]
Deferred financing costs		$ 117,000		$ 117,000		$ 164,000
Promissory Note
Debt Instrument [Line Items]
Interest rate		6.75%		6.75%
Number of promissory notes executed \| PromissoryNote		2		2
Debt instrument, principal amount		$ 23,500,000		$ 23,500,000
Debt instrument, periodic payment, principal				4,800,000
Debt instrument, periodic payment				$ 4,300,000