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Condensed Consolidated Statements Of Cash Flow (Parenthetical) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Condensed Consolidated Statements Of Cash Flow [Abstract]
Debt component of allowance for funds used during construction	$ 5,381	$ 4,502

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- References

No definition available.

+ Details

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

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- Definition

Debt component of allowance for funds used during construction

+ References

No definition available.

+ Details

Name:	wtrg_DebtComponentOfAllowanceForFundsUsedDuringConstruction
Namespace Prefix:	wtrg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration