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Fair Value Measurements (Narrative) (Details 4)	9 Months Ended
	Sep. 30, 2024 Number
Fair Value Measurements [Abstract]
Number of private companies which entity has investments in common equity securities	2

X

- Definition

The number of private companies which entity has investments made in common equity securities.

+ References

No definition available.

+ Details

Name:	else_NumberOfPrivateCompaniesWhichEntityHasInvestmentsInCommonEquitySecurities
Namespace Prefix:	else_
Data Type:	xbrli:integerItemType
Balance Type:	na
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