Amount of public utility's approved rate increase (decrease) by regulatory agency.

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- Definition

Allowed Base Rate Increase, Amount Designed To Increase Annual Operating Revenues

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- Definition

Base rate increase designed to increase total operating revenues on an annual basis

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- Definition

Change in other operating revenue, annually

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- Definition

Customer surcharge period

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- Definition

Distribution System Improvement Charges

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- Definition

Distribution System Improvement Charges Reset Level Upon New Base Rates

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- Definition

Infrastructure Rehabiliation Surcharges Designed To Increase Total Operating Revenue On An Annual Basis

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- Definition

Number of operating divisions

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- Definition

Service line replacement costs.

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- Definition

Water And Wastewater Rates [Line Items]

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Rate Activity (Narrative) (Details) $ in Thousands										6 Months Ended
Rate Activity (Narrative) (Details) $ in Thousands	Jul. 30, 2025 USD ($)	Jul. 01, 2025 USD ($)	Jun. 30, 2025 USD ($)	Jun. 20, 2025 USD ($)	Apr. 30, 2025 USD ($)	Feb. 07, 2025 USD ($)	Nov. 21, 2024 USD ($)	Oct. 09, 2024 USD ($)	Sep. 12, 2024 USD ($)	Jun. 30, 2025 USD ($) item
Pennsylvania and Ohio [Member] \| Regulated Water And Wastewater [Member]
Water And Wastewater Rates [Line Items]
Infrastructure rehabilitation surcharges designed to increase total operating revenues on an annual basis										$ 10,808
North Carolina [Member] \| Regulated Water And Wastewater [Member]
Water And Wastewater Rates [Line Items]
Distribution system improvement charges reset level upon new base rates			$ 5,820							5,820
Illinois [Member]
Water And Wastewater Rates [Line Items]
Base rate increase (decrease)							$ 11,632
Base rate increase designed to increase total operating revenues on an annual basis							11.40%
New Jersey [Member]
Water And Wastewater Rates [Line Items]
Customer surcharge period								3 years
Service line replacement costs								$ 11,535
Base rate increase (decrease)								$ 2,250
New Jersey [Member] \| Regulated Water And Wastewater [Member]
Water And Wastewater Rates [Line Items]
Infrastructure rehabilitation surcharges designed to increase total operating revenues on an annual basis										$ 2,468
Texas [Member] \| Regulated Water And Wastewater [Member]
Water And Wastewater Rates [Line Items]
Base rate increase (decrease)				$ 29,149
Virginia [Member] \| Regulated Natural Gas [Member]
Water And Wastewater Rates [Line Items]
Base rate increase designed to increase total operating revenues on an annual basis									23.80%
Distribution system improvement charges reset level upon new base rates									$ 5,490
Pennsylvania [Member] \| Regulated Water And Wastewater [Member]
Water And Wastewater Rates [Line Items]
Allowed base rate increase, amount designed to increase annual operating revenues						$ 73,000
Base rate increase (decrease)						$ 110,940
Base rate increase designed to increase total operating revenues on an annual basis						6.73%
Distribution system improvement charges reset level upon new base rates						$ 37,940
Pennsylvania [Member] \| Regulated Natural Gas [Member]
Water And Wastewater Rates [Line Items]
Change in other operating revenue, annually									3,000
Distribution system improvement charges									21,000
Base rate increase (decrease)									$ 111,000
Base rate increase designed to increase total operating revenues on an annual basis									11.10%
Distribution system improvement charges reset level upon new base rates									$ 93,000
Ohio [Member] \| Regulated Water And Wastewater [Member]
Water And Wastewater Rates [Line Items]
Base rate increase (decrease)			$ 14,653
Ohio [Member] \| Regulated Water [Member]
Water And Wastewater Rates [Line Items]
Number of operating divisions \| item										2
Kentucky [Member] \| Regulated Natural Gas [Member]
Water And Wastewater Rates [Line Items]
Allowed base rate increase, amount designed to increase annual operating revenues		$ 7,700
Infrastructure rehabilitation surcharges designed to increase total operating revenues on an annual basis										$ 542
Base rate increase designed to increase total operating revenues on an annual basis		11.20%
Subsequent Event [Member] \| Virginia [Member]
Water And Wastewater Rates [Line Items]
Base rate increase (decrease)	$ 7,927
Year 1 [Member] \| North Carolina [Member]
Water And Wastewater Rates [Line Items]
Base rate increase (decrease)					$ 32,847
Year 2 [Member] \| North Carolina [Member]
Water And Wastewater Rates [Line Items]
Base rate increase (decrease)					5,915
Year 3 [Member] \| North Carolina [Member]
Water And Wastewater Rates [Line Items]
Base rate increase (decrease)					$ 6,000