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General (Tables)

3 Months Ended

Mar. 31, 2025

Accounting Policies [Abstract]

Schedule of SJW Group's Revenue Components

SJW Group’s revenue components are as follows:

			Three months ended March 31,
			2025						2024
Revenue from contracts with customers			$	164,863					150,008
Alternative revenue programs, net			592						(1,837)
Other balancing and memorandum accounts and regulatory mechanisms, net			1,300						(564)
Rental income			844						1,775
			$	167,599					149,382

Schedule of Nonutility Properties

The major components of nonutility properties as of March 31, 2025 and December 31, 2024, are as follows: 

			March 31, 2025						December 31, 2024
Land			$	915					915
Buildings and improvements			399						399
Subtotal			1,314						1,314
Less: accumulated depreciation			99						98
Total			$	1,215					1,216

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Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.

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-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
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Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.

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-Section 50
-Paragraph 1
-SubTopic 10
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