Subsequent Event	12 Months Ended
Dec. 31, 2022
Subsequent Events [Abstract]
Subsequent Event	Subsequent EventOn January 13, 2023, SJWTX has reached agreements to acquire KT Water Development Ltd and KT Water Resource L.P. for purchase prices of $7,338 and $53,500, respectively. KT Water Development Ltd is an investor-owned water utility providing water to approximately 1,725 people through over 575 service connections in the Rockwall Ranch subdivision in southern Comal County, Texas. KT Water Resources L.P. is a private-held company formed to develop wholesale water supplies for the fast-growing utilities of Comal County, Texas. The transaction is expected to close in the third quarter of 2023, pending the Public Utilities Commission of Texas approval of the KT Water Development Ltd. acquisition.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI https://asc.fasb.org/topic&trid=2122774

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662

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