Line Of Credit Facility, Terminated, Maximum Borrowing Capacity

No definition available.

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Balance Type:	credit
Period Type:	instant

- Definition

Amount of consideration transferred in asset acquisition. Includes, but is not limited to, cash, liability incurred by acquirer, and equity interest issued by acquirer.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 805
-SubTopic 50
-Name Accounting Standards Codification
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+ Details

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Balance Type:	credit
Period Type:	duration

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22)(a)(1))
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+ Details

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Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22)(b))
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-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

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Period Type:	duration

- Details

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- Details

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- Details

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- Details

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Namespace Prefix:
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Balance Type:
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- Details

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- Details

Name:	us-gaap_DebtInstrumentAxis=hto_CTWSCreditAgreementMaturingAugust2025Member
Namespace Prefix:
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Balance Type:
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- Details

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- Details

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Subsequent Events (Details) - USD ($) $ in Thousands			6 Months Ended
Subsequent Events (Details) - USD ($) $ in Thousands	Jul. 11, 2025	Jul. 07, 2025	Jun. 30, 2025	Jun. 30, 2024	Jul. 10, 2025
Subsequent Event [Line Items]
Repayments of long-term borrowings			$ 1,738	$ 41,488
Subsequent Event \| MWC \| Unsecured Debt \| 6.70% Promissory Note Due July 20, 2055
Subsequent Event [Line Items]
Principal amount					$ 25,000
Interest rate					6.70%
Subsequent Event \| CTWS \| Unsecured Debt \| 6.70% Promissory Note Due July 20, 2055
Subsequent Event [Line Items]
Credit limit of credit agreement terminated	$ 40,000
Subsequent Event \| CTWS \| Unsecured Debt \| CTWS Credit Agreement Maturing August 2025
Subsequent Event [Line Items]
Repayments of long-term borrowings	$ 25,000
Subsequent Event \| Quadvest, L.P. Asset Purchase Agreement
Subsequent Event [Line Items]
Asset acquisition, consideration transferred		$ 483,600
Subsequent Event \| Quadvest Wholesale Asset Purchase Agreement
Subsequent Event [Line Items]
Asset acquisition, consideration transferred		$ 56,400