Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 805
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479907/805-20-50-5

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 805
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479581/805-30-50-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-13

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- Definition

Business Acquisition, Geographical Location, Number Of Municipalities

+ References

No definition available.

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- Definition

Number of customers.

+ References

No definition available.

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- Definition

Number of Dwelling Units

+ References

No definition available.

+ Details

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Balance Type:	na
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- Definition

Number Of Retail Customers

+ References

No definition available.

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Water And Wastewater Utility Acquisitions (Narrative) (Details) $ in Thousands			1 Months Ended							12 Months Ended
	Aug. 12, 2022 USD ($)	Jul. 29, 2022 customer	Jul. 31, 2025 USD ($) item customer	Apr. 30, 2025 USD ($) customer	Jan. 31, 2025 USD ($) customer	Oct. 31, 2024 USD ($) customer	Jun. 30, 2024 USD ($) customer	May 31, 2024 USD ($) customer	Sep. 30, 2023 USD ($) customer	Dec. 31, 2019 USD ($) customer item
Delaware [Member] \| Wastewater Utility System [Member]
Business Acquisition [Line Items]
Number of customers										16,000
Cash paid for business acquisition \| $										$ 276,500
Retail customers										198,000
Number of municipalities \| item										42
Ohio [Member] \| Village of Midvale, Ohio’s water system [Member]
Business Acquisition [Line Items]
Number of customers				1,000
Cash paid for business acquisition \| $				$ 2,950
Texas [Member] \| Integra Water Texas, LLC [Member]
Business Acquisition [Line Items]
Number of customers						1,100
Cash paid for business acquisition \| $						$ 4,400
East Whiteland Township [Member] \| Water And Wastewater Utility Systems [Member]
Business Acquisition [Line Items]
Number of customers		4,018
Cash paid for business acquisition \| $	$ 54,374
Glenview, Illinois [Member] \| Wastewater Utility Assets Of Westfield HOA [Member]
Business Acquisition [Line Items]
Number of customers								200
Cash paid for business acquisition \| $								$ 67
Greenville, Pennsylvania [Member] \| Greenville Sanitary Authority’s Wastewater Utility Assets [Member]
Business Acquisition [Line Items]
Number of customers					2,300
Cash paid for business acquisition \| $					$ 18,000
Greenville, Pennsylvania [Member] \| Water And Wastewater Utility Systems [Member]
Business Acquisition [Line Items]
Number of customers									3,000
Cash paid for business acquisition \| $									$ 18,000
Harris County, Texas [Member] \| Private Water And Wastewater Utility Assets [Member]
Business Acquisition [Line Items]
Number of customers							400
Cash paid for business acquisition \| $							$ 1,125
Indiana [Member] \| Wastewater Utility Assets in Morgan County [Member]
Business Acquisition [Line Items]
Number of customers						100
Cash paid for business acquisition \| $						$ 500
Subsequent Event [Member] \| Beaver Falls Pennsylvania [Member] \| Wastewater Utility System [Member]
Business Acquisition [Line Items]
Number of customers			3,200
Number of dwelling units \| item			3,800
Cash paid for business acquisition \| $			$ 37,750
Number of municipalities \| item			7