Lines of Credit (Tables)

12 Months Ended

Dec. 31, 2023

Debt Disclosure [Abstract]

Schedule of Line of Credit Facilities

A summary of the line of agreements as of December 31, 2023 and 2022 are as follows:

		2023				2022
	Maturity Date	Line Limit		Amounts Outstanding	Unused Portion	Amounts Outstanding
Syndicated credit agreement:	August 2, 2028
SJW Group		$	50,000	10,000	40,000	—
SJWC		140,000		56,000	84,000	95,000
CTWS		90,000		53,000	37,000	20,000
TWC		20,000		2,500	17,500	—
Total syndicated credit agreement		300,000		121,500	178,500	115,000
CTWS credit agreement	August 2, 2028	10,000		10,000	—	4,578
CTWS credit agreement	May 15, 2025	40,000		40,000	—	40,000
		$	350,000	171,500	178,500	159,578