Amount Receivable, Upon Achievement Of Event

No definition available.

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Namespace Prefix:	aeri_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount Receivable, Upon Execution of Collaboration Agreement

+ References

No definition available.

+ Details

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Namespace Prefix:	aeri_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Collaborative Agreement, Amount Receivable Upon Achievement Of Certain Commercial Milestones

+ References

No definition available.

+ Details

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Namespace Prefix:	aeri_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Collaborative Agreement, Amount Receivable Upon Achievement Of Certain Development And Regulatory Milestones

+ References

No definition available.

+ Details

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

- Definition

Collaborative Agreement, Expiration, Period After First Commercial Sale Of Product

+ References

No definition available.

+ Details

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Namespace Prefix:	aeri_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Collaborative Agreement, Repayment Of Upfront Payment Upon Termination, Amount

+ References

No definition available.

+ Details

Name:	aeri_CollaborativeAgreementRepaymentOfUpfrontPaymentUponTerminationAmount
Namespace Prefix:	aeri_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Collaborative Agreement, Royalty Percentage

+ References

No definition available.

+ Details

Name:	aeri_CollaborativeAgreementRoyaltyPercentage
Namespace Prefix:	aeri_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Collaborative Agreement, Termination By Counterparty, Effective After Written Notice Period

+ References

No definition available.

+ Details

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Namespace Prefix:	aeri_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Provisions For Revenue Reserves To Reduce Product Revenues To Product Revenues, Net

+ References

No definition available.

+ Details

Name:	aeri_ProvisionsForRevenueReservesToReduceProductRevenuesToProductRevenuesNet
Namespace Prefix:	aeri_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Revenue From Contract With Customer, Number Of Distributors

+ References

No definition available.

+ Details

Name:	aeri_RevenueFromContractWithCustomerNumberOfDistributors
Namespace Prefix:	aeri_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

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

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

- 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

- Details

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Balance Type:
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- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

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Namespace Prefix:
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Balance Type:
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- Details

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Namespace Prefix:
Data Type:	na
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- Details

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- Details

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- Details

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Balance Type:
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- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

Name:	srt_MajorCustomersAxis=aeri_DistributorTwoMember
Namespace Prefix:
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- Details

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Revenue Recognition - Narrative (Details) $ in Millions	1 Months Ended	3 Months Ended
Revenue Recognition - Narrative (Details) $ in Millions	Dec. 31, 2021 USD ($) Segment	Mar. 31, 2022 USD ($) Segment	Mar. 31, 2021 USD ($) Segment	Jan. 01, 2022 USD ($)
Disaggregation of Revenue [Line Items]
Provisions for revenue reserves to reduce product revenues to product revenues, net		$ 63.8	$ 50.8
Santen \| Europe
Disaggregation of Revenue [Line Items]
Collaborative agreement, repayment of upfront payment upon termination, amount	$ 8.0
Second Santen Agreement \| Santen
Disaggregation of Revenue [Line Items]
Upfront payment receivable				$ 88.0
Amount receivable, upon achievement of event				$ 2.0
Contingent payments receivable upon achievement of development and regulatory milestones (up to)	15.5
Contingent payments receivable upon achievement of commercial milestones (up to)	$ 60.0
Collaborative agreement, termination by counterparty, effective after written notice period \| Segment	180
Collaborative agreement expiration, period after first commercial sale of product	3 years
Second Santen Agreement \| Santen \| Expanded Territories Excluding China and India
Disaggregation of Revenue [Line Items]
Royalty percentage (in excess of)	25.00%
Second Santen Agreement \| Santen \| China and India
Disaggregation of Revenue [Line Items]
Royalty percentage (in excess of)	20.00%
Rhopressa and Rocklatan \| Sales Revenue, Net \| Customer Concentration Risk
Disaggregation of Revenue [Line Items]
Number of distributors \| Segment		3	3
Rhopressa and Rocklatan \| Sales Revenue, Net \| Customer Concentration Risk \| Distributor One
Disaggregation of Revenue [Line Items]
Concentration risk percentage		38.00%	36.00%
Rhopressa and Rocklatan \| Sales Revenue, Net \| Customer Concentration Risk \| Distributor Two
Disaggregation of Revenue [Line Items]
Concentration risk percentage		35.00%	30.00%
Rhopressa and Rocklatan \| Sales Revenue, Net \| Customer Concentration Risk \| Distributor Three
Disaggregation of Revenue [Line Items]
Concentration risk percentage		26.00%	33.00%