Debt instrument number of tranches.

No definition available.

Name:	aimt_DebtInstrumentNumberOfTranches
Namespace Prefix:	aimt_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt instrument prepayment fee percentage.

+ References

No definition available.

+ Details

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Namespace Prefix:	aimt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt instrument prepayment fee percentage after year five.

+ References

No definition available.

+ Details

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Namespace Prefix:	aimt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt instrument prepayment fee percentage year five.

+ References

No definition available.

+ Details

Name:	aimt_DebtInstrumentPrepaymentFeePercentageYearFive
Namespace Prefix:	aimt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt instrument prepayment fee percentage year four.

+ References

No definition available.

+ Details

Name:	aimt_DebtInstrumentPrepaymentFeePercentageYearFour
Namespace Prefix:	aimt_
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Balance Type:	na
Period Type:	instant

- Definition

Line of credit facility, prepayment premium amount.

+ References

No definition available.

+ Details

Name:	aimt_LineOfCreditFacilityPrepaymentPremiumAmount
Namespace Prefix:	aimt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line of credit facility, proceeds receivable upon closing of transaction.

+ References

No definition available.

+ Details

Name:	aimt_LineOfCreditFacilityProceedsReceivableUponClosingOfTransaction
Namespace Prefix:	aimt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line of credit facility, proceeds receivable upon FDA approval.

+ References

No definition available.

+ Details

Name:	aimt_LineOfCreditFacilityProceedsReceivableUponFDAApproval
Namespace Prefix:	aimt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line of credit facility without regulatory approval expiration date.

+ References

No definition available.

+ Details

Name:	aimt_LineOfCreditFacilityWithoutRegulatoryApprovalExpirationDate
Namespace Prefix:	aimt_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Other loans trigger amount to reduce maturity of credit facility.

+ References

No definition available.

+ Details

Name:	aimt_OtherLoansTriggerAmountToReduceMaturityOfCreditFacility
Namespace Prefix:	aimt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage of principal amount of loans prepaid.

+ References

No definition available.

+ Details

Name:	aimt_PercentageOfPrincipalAmountOfLoansPrepaid
Namespace Prefix:	aimt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Regulatory approval last date.

+ References

No definition available.

+ Details

Name:	aimt_RegulatoryApprovalLastDate
Namespace Prefix:	aimt_
Data Type:	xbrli:dateItemType
Balance Type:	na
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

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num: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 http://asc.fasb.org/extlink&oid=109500613&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 http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&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 http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

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

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 6
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6036836-161870

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 http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399

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(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num: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

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph e
-URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823

+ Details

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

- Definition

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

+ 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 http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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

- Definition

The effective interest rate during the reporting period.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
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

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

The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

+ 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 (e)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585

+ Details

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

- Details

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- Details

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- Details

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Long-Term Debt, Net of Discounts - Additional Information (Details)				6 Months Ended
	Dec. 31, 2023	Jan. 03, 2021	Jan. 31, 2019 USD ($) Tranche	Jun. 30, 2019 USD ($)	Jan. 01, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2018 USD ($)
Debt Instrument [Line Items]
Payment of fees including debt issuance costs				$ 3,856,000
Long term debt, outstanding				$ 41,961,000
KKR Loans
Debt Instrument [Line Items]
Loan agreement, maximum borrowing capacity			$ 170,000,000.0
Debt instrument number of tranches \| Tranche			3
Loan agreement, proceeds receivable upon closing of transaction			$ 40,000,000.00
Loan agreement, proceeds receivable upon FDA approval			85,000,000.0
Loan agreement, remaining borrowing capacity upon certain conditions			$ 45,000,000.0
Line of credit facility maturity date			Jan. 03, 2025
Regulatory approval last date			Dec. 31, 2020
Line of credit facility without regulatory approval expiration date			Jan. 15, 2021
Loan prepayment fee percentage, after January 3, 2021 but on or prior to January 3, 2022				5.00%
Loan prepayment fee percentage, after January 3, 2022 but on or prior to January 3, 2023				2.00%
Loan prepayment fee percentage, thereafter				0.00%
Line of credit facility, prepayment premium amount				$ 3,400,000
Loan exit fee percentage				4.00%
Payment of fees including debt issuance costs				$ 3,900,000
Long term debt, outstanding				$ 41,900,000			$ 0
Debt instrument, interest rate				9.94%
KKR Loans \| Scenario, Forecast
Debt Instrument [Line Items]
Other loans trigger amount to reduce 91 days maturity of credit facility					$ 25,000,000.0	$ 15,000,000.0
Loan, spread on variable rate		0.50%
Loan redemption price, percentage	50.00%
Line of credit facility, interest rate	12.50%
Percentage of principal amount of loans prepayment paid on or prior to January 3, 2021		105.00%
KKR Loans \| Alternate Base Rate
Debt Instrument [Line Items]
Loan, spread on variable rate			6.50%
KKR Loans \| 30-day LIBOR
Debt Instrument [Line Items]
Loan, spread on variable rate			7.50%