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Fair Value Measurements - Additional Information (Details) $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($)
Fair Value Disclosures [Abstract]
Change in fair value of warrant liabilities and fair value of financial instruments issued in excess of proceeds includes reversal	$ 59.1

X

- Definition

Change in fair value of warrant liabilities and fair value of financial instruments issued in excess of proceeds includes reversal.

+ References

No definition available.

+ Details

Name:	eldn_ChangeInFairValueOfWarrantLiabilitiesAndFairValueOfFinancialInstrumentsIssuedInExcessOfProceedsIncludesReversal
Namespace Prefix:	eldn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

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