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v3.25.2

Commitments and Contingencies (Additional Information) (Details) | 6 Months Ended
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Jun. 30, 2025 USD ($)
Commitments And Contingencies [Line Items] |
Outstanding material claims | $ 0
Reserve for indemnification | 0
Second And Third Anniversary [Member] | M E E I Agreement [Member] |
Commitments And Contingencies [Line Items] |
Non-creditable non-refundable license maintenance fees | 15,000
Fourth And Fifth Anniversary [Member] | M E E I Agreement [Member] |
Commitments And Contingencies [Line Items] |
Non-creditable non-refundable license maintenance fees | 25,000
Sixth And Subsequent Anniversary [Member] | M E E I Agreement [Member] |
Commitments And Contingencies [Line Items] |
Non-creditable non-refundable license maintenance fees | $ 35,000

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- Definition Cash Reserve For Indemnities And Guarantees + References No definition available. + Details
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Namespace Prefix: | aldx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Commitments And Contingencies [Line Items] + References No definition available. + Details
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- Definition Indemnification Obligations Claims Outstanding + References No definition available. + Details
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Namespace Prefix: | aldx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Non-creditable non-refundable license maintenance fees. + References No definition available. + Details
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Namespace Prefix: | aldx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
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Namespace Prefix: |
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Period Type: |

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- Details
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Namespace Prefix: |
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Period Type: |

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