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Subsequent Events - Additional Information (Details) - Leerink At The Market Sales Agreement [Member] - Subsequent Event $ in Millions	Mar. 24, 2025 USD ($)
Subsequent Event [Line Items]
Stock Offering Gross Proceeds Percentage	3.00%
Maximum [Member]
Subsequent Event [Line Items]
Common stock aggregate offering price	$ 75.0

X

- Definition

Stock offering gross proceeds percentage.

+ References

No definition available.

+ Details

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

X

- Definition

Stock offering value shares authorized to be sold.

+ References

No definition available.

+ Details

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Namespace Prefix:	lxeo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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X

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 830
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481674/830-30-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483399/855-10-50-2

+ Details

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- Details

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- Details

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- Details

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