SJW (SJW) 10-Q 30 Oct 23 2023 Q3 Quarterly report Financial data

Cover

Cover - shares	9 Months Ended
	Sep. 30, 2023	Oct. 24, 2023
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2023
Document Transition Report	false
Entity File Number	1-8966
Entity Registrant Name	SJW GROUP
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	77-0066628
Entity Address, Address Line One	110 West Taylor Street,
Entity Address, City or Town	San Jose,
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	95110
City Area Code	(408)
Local Phone Number	279-7800
Title of 12(b) Security	Common Stock, par value $0.001 per share
Trading Symbol	SJW
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		31,933,003
Entity Central Index Key	0000766829
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q3
Amendment Flag	false

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Income Statement [Abstract]
REVENUE	$ 204,843	$ 175,981	$ 499,025	$ 449,324
Production Expenses:
Purchased water	46,044	38,744	101,054	84,313
Power	2,785	3,913	7,363	10,387
Groundwater extraction charges	21,398	19,059	46,751	51,347
Other production expenses	12,415	11,888	36,379	33,607
Total production expenses	82,642	73,604	191,547	179,654
Administrative and general	23,888	23,909	71,759	71,374
Maintenance	6,457	7,065	18,813	20,651
Property taxes and other non-income taxes	8,795	8,354	25,092	24,242
Depreciation and amortization	26,455	25,529	78,872	78,342
Gain on sale of nonutility property	0	(82)	0	(5,532)
Total operating expense	148,237	138,379	386,083	368,731
OPERATING INCOME	56,606	37,602	112,942	80,593
OTHER (EXPENSE) INCOME:
Interest on long-term debt and other interest expense	(16,744)	(14,190)	(48,913)	(42,160)
Pension non-service (cost) credit	(740)	970	(906)	2,860
Other, net	1,661	875	7,042	2,694
Income before income taxes	40,783	25,257	70,165	43,987
Provision for income taxes	4,561	223	4,127	3,658
NET INCOME	36,222	25,034	66,038	40,329
Other comprehensive income (loss), net	318	(173)	420	(602)
COMPREHENSIVE INCOME	$ 36,540	$ 24,861	$ 66,458	$ 39,727
EARNINGS PER SHARE
Basic (in usd per share)	$ 1.14	$ 0.83	$ 2.10	$ 1.33
Diluted (in usd per share)	1.13	0.82	2.09	1.33
DIVIDENDS PER SHARE (in usd per share)	$ 0.38	$ 0.36	$ 1.14	$ 1.08
WEIGHTED AVERAGE SHARES OUTSTANDING
Basic (in shares)	31,862,518	30,269,462	31,436,077	30,246,201
Diluted (in shares)	31,934,636	30,392,295	31,526,732	30,358,268

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Utility plant:
Land	$ 41,427	$ 39,982
Depreciable plant and equipment	3,879,507	3,661,285
Construction in progress	113,204	116,851
Intangible assets	35,946	35,959
Total utility plant	4,070,084	3,854,077
Less accumulated depreciation and amortization	1,305,134	1,223,760
Net utility plant	2,764,950	2,630,317
Nonutility properties and real estate investments	13,072	58,033
Less accumulated depreciation and amortization	192	17,158
Net nonutility properties and real estate investments	12,880	40,875
CURRENT ASSETS:
Cash and cash equivalents	21,067	12,344
Accounts receivable:
Customers, net of allowances for uncollectible accounts of $6,661 and $5,753 on September 30, 2023 and December 31, 2022, respectively	70,374	59,172
Other	4,381	5,560
Accrued unbilled utility revenue	62,253	45,722
Assets held for sale	40,850	0
Prepaid expenses	14,996	9,753
Current regulatory assets, net	8,573	16,068
Other current assets	6,277	6,095
Total current assets	228,771	154,714
OTHER ASSETS:
Net regulatory assets, less current portion	131,420	127,275
Investments	15,901	14,819
Other intangible asset	28,386	0
Goodwill	640,311	640,311
Other	20,809	24,313
Total other assets	836,827	806,718
Total assets	3,843,428	3,632,624
Stockholders’ equity:
Common stock, $0.001 par value; authorized 70,000,000 shares; issued and outstanding shares 31,933,003 on September 30, 2023 and 30,801,912 on December 31, 2022	32	31
Additional paid-in capital	729,740	651,004
Retained earnings	488,585	458,356
Accumulated other comprehensive income	1,896	1,477
Total stockholders’ equity	1,220,253	1,110,868
Long-term debt, less current portion	1,533,769	1,491,965
Capitalization, long-term debt and equity	2,754,022	2,602,833
CURRENT LIABILITIES:
Lines of credit	128,433	159,578
Current portion of long-term debt	43,464	4,360
Accrued groundwater extraction charges, purchased water and power	33,170	19,707
Accounts payable	35,926	29,581
Accrued interest	19,165	13,907
Accrued payroll	11,264	11,908
Income tax payable	11,809	2,696
Other current liabilities	24,885	22,913
Total current liabilities	308,116	264,650
DEFERRED INCOME TAXES	234,558	218,155
ADVANCES FOR CONSTRUCTION	143,810	137,696
CONTRIBUTIONS IN AID OF CONSTRUCTION	328,633	323,668
POSTRETIREMENT BENEFIT PLANS	51,150	59,738
OTHER NONCURRENT LIABILITIES	23,139	25,884
COMMITMENTS AND CONTINGENCIES
Total capitalization and liabilities	$ 3,843,428	$ 3,632,624

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
CURRENT ASSETS:
Allowance for uncollectible accounts	$ 6,661	$ 5,753
CAPITALIZATION:
Common stock, par value (in usd per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	70,000,000	70,000,000
Common stock, shares issued (in shares)	31,933,003	30,801,912
Common stock, shares outstanding (in shares)	31,933,003	30,801,912

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Beginning balance (in shares) at Dec. 31, 2021		30,181,348
Beginning balance at Dec. 31, 2021	$ 1,034,519	$ 30	$ 606,392	$ 428,260	$ (163)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	3,737			3,737
Unrealized gain (loss) on investment, net of taxes	(181)				(181)
Stock-based compensation	1,532		1,552	(20)
Issuance of restricted and deferred stock units (in shares)		37,879
Issuance of restricted and deferred stock units	(1,269)		(1,269)
Employee stock purchase plan (in shares)		17,918
Employee stock purchase plan	1,049		1,049
Common stock issuance, net of costs	(87)		(87)
Dividends paid	(10,882)			(10,882)
Ending balance (in shares) at Mar. 31, 2022		30,237,145
Ending balance at Mar. 31, 2022	1,028,418	$ 30	607,637	421,095	(344)
Beginning balance (in shares) at Dec. 31, 2021		30,181,348
Beginning balance at Dec. 31, 2021	1,034,519	$ 30	606,392	428,260	(163)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	40,329
Ending balance (in shares) at Sep. 30, 2022		30,315,265
Ending balance at Sep. 30, 2022	1,049,347	$ 30	614,226	435,856	(765)
Beginning balance (in shares) at Mar. 31, 2022		30,237,145
Beginning balance at Mar. 31, 2022	1,028,418	$ 30	607,637	421,095	(344)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	11,558			11,558
Unrealized gain (loss) on investment, net of taxes	(248)				(248)
Stock-based compensation	1,018		1,041	(23)
Issuance of restricted and deferred stock units (in shares)		10,529
Issuance of restricted and deferred stock units	(6)		(6)
Common stock issuance, net of costs	(6)		(6)
Dividends paid	(10,889)			(10,889)
Ending balance (in shares) at Jun. 30, 2022		30,247,674
Ending balance at Jun. 30, 2022	1,029,845	$ 30	608,666	421,741	(592)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	25,034			25,034
Unrealized gain (loss) on investment, net of taxes	(173)				(173)
Stock-based compensation	1,375		1,398	(23)
Issuance of restricted and deferred stock units (in shares)		1,316
Issuance of restricted and deferred stock units	13		13
Employee stock purchase plan (in shares)		18,667
Employee stock purchase plan	1,042		1,042
Common stock issuance, net of costs (in shares)		47,608
Common stock issuance, net of costs	3,107		3,107
Dividends paid	(10,896)			(10,896)
Ending balance (in shares) at Sep. 30, 2022		30,315,265
Ending balance at Sep. 30, 2022	$ 1,049,347	$ 30	614,226	435,856	(765)
Beginning balance (in shares) at Dec. 31, 2022	30,801,912	30,801,912
Beginning balance at Dec. 31, 2022	$ 1,110,868	$ 31	651,004	458,356	1,477
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	11,530			11,530
Unrealized gain (loss) on investment, net of taxes	93				93
Stock-based compensation	1,177		1,199	(22)
Issuance of restricted and deferred stock units (in shares)		38,776
Issuance of restricted and deferred stock units	(1,538)		(1,538)
Employee stock purchase plan (in shares)		16,410
Employee stock purchase plan	1,080		1,080
Common stock issuance, net of costs (in shares)		570,026
Common stock issuance, net of costs	40,997		40,997
Dividends paid	(11,722)			(11,722)
Ending balance (in shares) at Mar. 31, 2023		31,427,124
Ending balance at Mar. 31, 2023	$ 1,152,485	$ 31	692,742	458,142	1,570
Beginning balance (in shares) at Dec. 31, 2022	30,801,912	30,801,912
Beginning balance at Dec. 31, 2022	$ 1,110,868	$ 31	651,004	458,356	1,477
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 66,038
Ending balance (in shares) at Sep. 30, 2023	31,933,003	31,933,003
Ending balance at Sep. 30, 2023	$ 1,220,253	$ 32	729,740	488,585	1,896
Beginning balance (in shares) at Mar. 31, 2023		31,427,124
Beginning balance at Mar. 31, 2023	1,152,485	$ 31	692,742	458,142	1,570
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	18,286			18,286
Unrealized gain (loss) on investment, net of taxes	8				8
Stock-based compensation	1,122		1,139	(17)
Issuance of restricted and deferred stock units (in shares)		13,429
Issuance of restricted and deferred stock units	(20)		(20)
Common stock issuance, net of costs (in shares)		290,477
Common stock issuance, net of costs	22,782	$ 1	22,781
Dividends paid	(11,947)			(11,947)
Ending balance (in shares) at Jun. 30, 2023		31,731,030
Ending balance at Jun. 30, 2023	1,182,716	$ 32	716,642	464,464	1,578
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	36,222			36,222
Unrealized gain (loss) on investment, net of taxes	318				318
Stock-based compensation	1,230		1,238	(8)
Issuance of restricted and deferred stock units (in shares)		14,840
Issuance of restricted and deferred stock units	(706)		(706)
Employee stock purchase plan (in shares)		17,712
Employee stock purchase plan	1,061		1,061
Common stock issuance, net of costs (in shares)		169,421
Common stock issuance, net of costs	11,505		11,505
Dividends paid	$ (12,093)			(12,093)
Ending balance (in shares) at Sep. 30, 2023	31,933,003	31,933,003
Ending balance at Sep. 30, 2023	$ 1,220,253	$ 32	$ 729,740	$ 488,585	$ 1,896

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022
Statement of Stockholders' Equity [Abstract]
Unrealized gain (loss) on investment, tax expense (benefit)	$ 193	$ (37)	$ 0	$ 154	$ 0	$ 67
Dividends per share (in usd per share)	$ 0.38	$ 0.38	$ 0.38	$ 0.36	$ 0.36	$ 0.36

CONDENSED CONSOLIDATED STATEM_4

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
OPERATING ACTIVITIES:
Net income	$ 66,038	$ 40,329
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	80,544	79,862
Deferred income taxes	12,996	7,135
Stock-based compensation	3,576	3,991
Allowance for equity funds used during construction	(1,649)	(1,324)
Gain on sale of nonutility asset	0	(5,532)
Changes in operating assets and liabilities:
Accounts receivable and accrued unbilled utility revenue	(26,782)	(22,511)
Accounts payable and other current liabilities	557	(1,475)
Accrued groundwater extraction charges, purchased water and power	13,463	10,494
Tax receivable and payable, and other accrued taxes	690	(1,851)
Postretirement benefits	(1,851)	(2,719)
Regulatory assets and liabilities excluding income tax temporary differences, net and postretirement benefits	16,092	21,776
Up-front service concession payment	0	(1,600)
Other changes, net	(4,371)	2,774
NET CASH PROVIDED BY OPERATING ACTIVITIES	159,303	129,349
INVESTING ACTIVITIES:
Company-funded	(195,937)	(160,515)
Contributions in aid of construction	(13,604)	(17,773)
Additions to nonutility assets	(24,244)	(610)
Payments to retire utility plant, net of salvage	(908)	(2,432)
Proceeds from sale of nonutility properties	0	310
Payments for business acquisitions	(7,286)	(433)
Other changes, net	238	0
NET CASH USED IN INVESTING ACTIVITIES	(241,741)	(181,453)
FINANCING ACTIVITIES:
Borrowings on line of credit	102,655	152,655
Repayments on line of credit	(133,800)	(16,481)
Long-term borrowings	70,000	15,000
Repayments of long-term borrowings	(3,062)	(87,757)
Issuance of common stock, net of issuance costs	75,284	3,107
Dividends paid	(35,762)	(32,667)
Receipts of advances and contributions in aid of construction	18,889	21,593
Refunds of advances for construction	(2,148)	(2,177)
Other changes, net	(895)	(98)
NET CASH PROVIDED BY FINANCING ACTIVITIES	91,161	53,175
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	8,723	1,071
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, BEGINNING OF PERIOD	12,344	12,119
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, END OF PERIOD	21,067	13,190
LESS RESTRICTED CASH, END OF PERIOD	0	0
CASH AND CASH EQUIVALENTS, END OF PERIOD	21,067	13,190
Cash paid during the period for:
Interest	44,132	42,473
Income taxes	818	572
Supplemental disclosure of non-cash activities:
Accrued payables for additions to utility plant	26,315	22,044
Utility property installed by developers	1,295	976
Seller financing in asset acquisition, net of discount	$ 15,400	$ 0

General

General	9 Months Ended
	Sep. 30, 2023
Accounting Policies [Abstract]
General	General In the opinion of management, the accompanying unaudited condensed consolidated financial statements reflect all adjustments (consisting only of normal, recurring adjustments) necessary for a fair presentation of the results for the interim periods. The unaudited interim financial information has been prepared in accordance with accounting principles generally accepted in the United States of America and in accordance with the instructions for Form 10-Q and Rule 10-01 of Regulation S-X promulgated by the Securities and Exchange Commission. The Notes to Consolidated Financial Statements in SJW Group’s 2022 Annual Report on Form 10-K should be read with the accompanying unaudited condensed consolidated financial statements. SJW Group is a holding company with four wholly owned subsidiaries: San Jose Water Company (“SJWC”), SJWTX Holdings, Inc., SJW Land Company, and SJWNE LLC. SJWTX Holdings, Inc., is a holding company for its wholly owned subsidiaries, SJWTX, Inc., doing business as The Texas Water Company (“TWC”), Texas Water Operation Services, LLC, (“TWOS”) and Texas Water Resources, LLC (“TWR”) . SJWNE LLC is the holding company for Connecticut Water Service, Inc. (“CTWS”) whose wholly owned subsidiaries are The Connecticut Water Company (“CWC”), The Maine Water Company (“MWC”), New England Water Utility Services, Inc. (“NEWUS”), and Chester Realty, Inc. SJWC, CWC, TWC , TWOS, TWR, MWC and NEWUS are referred to as “Water Utility Services”. SJW Land Company and Chester Realty, Inc. are collectively referred to as “Real Estate Services.” Revenue Water sales are seasonal in nature and influenced by weather conditions. The timing of precipitation and climatic conditions can cause seasonal water consumption by customers to vary significantly. Due to the seasonal nature of the water business, the operating results for interim periods are not indicative of the operating results for a 12-month period. Revenue is generally higher in the warm, dry summer months when water usage and sales are greater, and lower in the winter months when cooler temperatures and increased precipitation curtail water usage resulting in lower sales. The major streams of revenue for SJW Group are as follows: Three months ended September 30, Nine months ended September 30, 2023 2022 2023 2022 Revenue from contracts with customers $ 211,716 169,972 $ 507,276 440,406 Alternative revenue programs, net 957 3,172 (2,638) (1,737) Other balancing and memorandum accounts, net (8,742) 1,857 (8,564) 6,719 Other regulatory mechanisms, net (518) (494) (1,342) (260) Rental income 1,430 1,474 4,293 4,196 $ 204,843 175,981 $ 499,025 449,324 Nonutility Properties and Real Estate Investments The major components of real estate investments and nonutility properties as of September 30, 2023 and December 31, 2022, are as follows: September 30, December 31, Land $ 4,137 12,615 Wholesale water supply assets 8,465 — Buildings and improvements 470 45,418 Subtotal 13,072 58,033 Less: accumulated depreciation and amortization 192 17,158 Total $ 12,880 40,875 In March 2023, SJW Land Company entered into a broker agreement to sell its warehouse buildings and land property located in Knoxville, Tennessee. The company reclassified the Tennessee properties from held-and-used to held-for-sale at March 31, 2023. The company’s intention is to complete the sale of these assets within a twelve month period. The company recorded the Tennessee properties at the lower of their carrying value or estimated fair value less cost to sell, and also stopped recording depreciation on assets held for sale. The company's broker provided the estimated fair value of the Tennessee properties. The estimated costs to sell was subtracted to estimate the fair value. The resulting net fair value of the Tennessee properties exceeded their carrying value, and accordingly no impairment was recorded. The sale of the Tennessee properties does not represent a strategic shift that has or will have a major effect on SJW Group; therefore, the sale does not qualify for treatment as a discontinued operation. The Tennessee warehouse buildings and land property is included in SJW Group’s “Real Estate Services” reportable segment in Note 9 , “Segment and Non-Tariffed Business Reporting”. The following represents the major components of the Tennessee warehouse building and land property recorded in assets held-for-sale on the condensed consolidated balance sheets as of September 30, 2023: September 30, Land $ 13,170 Buildings and improvements 44,950 Subtotal 58,120 Less: accumulated depreciation and amortization 17,270 Total $ 40,850 On February 15, 2022, the California Public Utilities Commission (“CPUC”) review on a SJWC nonutility property sold in October 2021 was completed and the deferred gain of $5,442 was recognized as gain on sale in the first quarter of 2022. Fair Value Measurement The following instruments are not measured at fair value on SJW Group’s condensed consolidated balance sheets as of September 30, 2023, but require disclosure of their fair values: cash and cash equivalents, accounts receivable and accounts payable. The estimated fair value of such instruments as of September 30, 2023 approximates their carrying value as reported on the condensed consolidated balance sheets. There have been no changes in valuation techniques during the three and nine months ended September 30, 2023. The fair value of these instruments would be categorized as Level 2 in the fair value hierarchy, with the exception of cash and cash equivalents, which would be categorized as Level 1. The fair value of SJW Group’s long-term debt was $1,299,114 and $1,294,354 as of September 30, 2023 and December 31, 2022, respectively, and was determined using a discounted cash flow analysis, based on the current rates for similar financial instruments of the same duration and creditworthiness of the company. The book value of long-term debt was $1,577,233 and $1,496,325 as of September 30, 2023 and December 31, 2022, respectively. Of the total fair value of long-term debt,$1,283,602 would be categorized as Level 2 in the fair value hierarchy and $15,512 would be categorized as Level 3 in the fair value hierarchy. CTWS’s additional retirement benefits under the supplemental executive retirement plans and retirement contracts are funded by investment assets held by a Rabbi Trust. The fair value of the money market funds, mutual funds and fixed income investments in the Rabbi Trust was $2,808 and $2,809 as of September 30, 2023 and December 31, 2022, respectively, and are categorized as Level 1 in the fair value hierarchy. Earnings per Share

Regulatory Matters

Regulatory Matters	9 Months Ended
	Sep. 30, 2023
Regulated Operations [Abstract]
Regulatory Matters	Regulatory Matters Regulatory assets, net are comprised of the following as of September 30, 2023 and December 31, 2022: September 30, 2023 December 31, 2022 Regulatory assets: Income tax temporary differences, net $ 62,745 43,434 Postretirement pensions and other postretirement benefits 30,076 31,493 Business combinations debt premium, net 15,490 17,396 Monterey Water Revenue Adjustment Mechanism (“MWRAM”) 12,162 10,864 Water Conservation Memorandum Account (“WCMA”) (7,683) (5,039) 2022 General Rate Case Interim Memorandum Account 9,513 20,650 Cost recovery balancing and memorandum accounts 8,267 16,545 All other balancing and memorandum accounts 4,344 2,749 Water Revenue Adjustment (“WRA”) (5,428) (4,488) Other, net 10,507 9,739 Total regulatory assets, net in Condensed Consolidated Balance Sheets 139,993 143,343 Less: current regulatory assets, net 8,573 16,068 Total regulatory assets, net, less current portion $ 131,420 127,275 SJWC has established balancing accounts for the purpose of tracking the under-collection or over-collection associated with expense changes and revenue authorized by the CPUC to offset those expense changes. In 2022, SJWC’s general rate case decision approved the use of the Full Cost Balancing Account to track the water supply costs and energy consumption. The MWRAM balancing account tracks the difference between the revenue received for actual metered sales through the tiered volumetric rate and the revenue that would have been received with the same actual metered sales if a uniform rate would have been in effect. SJWC also maintains memorandum accounts to track revenue impacts due to catastrophic events, certain unforeseen water quality expenses related to new federal and state water quality standards, energy efficiency, water conservation, water tariffs, and other approved activities or as directed by the CPUC. The WCMA allows SJWC to track lost revenue, net of related water costs, associated with reduced sales due to water conservation and associated calls for water use reductions. SJWC records the lost revenue captured in the WCMA balancing accounts. Drought surcharges collected are used to offset the revenue losses tracked in the WCMA. Mandatory water conservation requirements from Santa Clara Valley Water District ended on April 11, 2023, which also ended SJWC’s Mandatory Conservation Plan, that included drought allocations and surcharges. On October 2, 2023, the CPUC approved the continuation of WCMA and Water Conservation Expense Memorandum Account under the voluntary call for conservation effective April 20, 2023. All balancing accounts and memorandum accounts not included for recovery or refund in the current general rate case will be reviewed by the CPUC in SJWC’s next general rate case or at the time an individual account balance reaches a threshold of 2% of authorized revenue, whichever occurs first. CWC has been authorized by the Connecticut Public Utilities Regulatory Authority to utilize a WRA, a decoupling mechanism, to mitigate risk with changes in demand. The WRA is used to reconcile actual water demands with the demands projected in the most recent general rate case and allows the company to implement a surcharge or surcredit as necessary to recover or refund the revenues approved in the general rate case. The WRA allows the company to defer, as a regulatory asset or liability, the amount by which actual revenues deviate from the revenues allowed in the most recent general rate proceedings. As of September 30, 2023 and December 31, 2022, SJW Group’s regulatory assets, net, not earning a return primarily included postretirement pensions and the unfunded amount of other medical benefits, and business combination debt premiums, net. The total amount of regulatory assets, net not earning a return at September 30, 2023 and December 31, 2022, either by interest on the regulatory asset/liability or as a component of rate base at the allowed rate of return was $48,954 and $52,066, respectively.

Capitalization

Capitalization	9 Months Ended
	Sep. 30, 2023
Equity [Abstract]
Capitalization	CapitalizationIn March 2023, SJW Group entered into Amendment No. 1 to the equity distribution agreement (the “Equity Distribution Agreement”), dated November 17, 2021, between SJW Group and J.P. Morgan Securities LLC, Janney Montgomery Scott LLC, RBC Capital Markets, LLC and Wells Fargo Securities, LLC (each a “Sales Agent” and, collectively, the “Sales Agents”), pursuant to which SJW Group increased the aggregate gross sales price of shares of SJW Group’s common stock, $0.001 par value per share, that may be sold under the Equity Distribution Agreement from $100,000 to $240,000. For the three and nine months ended September 30, 2023, SJW Group issued and sold a total of 169,421 and 1,029,924 shares of common stock, respectively, at a weighted average price of $69.57 and $74.57 per share, respectively, and received $11,505 and $75,284 in net proceeds, respectively, under the Equity Distribution Agreement. Since the inception of the Equity Distribution Agreement, SJW Group has issued and sold 1,914,775 shares of common stock at a weighted average price of $74.05 for a total net proceeds of $138,716 and has $98,209 remaining under the Equity Distribution Agreement to issue into shares.

Bank Borrowings and Long-Term L

Bank Borrowings and Long-Term Liabilities	9 Months Ended
	Sep. 30, 2023
Debt Disclosure [Abstract]
Bank Borrowings and Long-Term Liabilities	Bank Borrowings and Long-Term Liabilities SJW Group’s contractual obligations and commitments include senior notes, bank term loans, revenue bonds, state revolving fund loans and other obligations. Water Utility Services has received advance deposit payments from its customers and developers on certain construction projects. The refunds of the advance deposit payments constitute an obligation of the respective entities. Short-term Financing Agreements In August 2023, SJW Group, SJWC, TWC, and CTWS entered into the First Amendment to Credit Agreement with JPMorgan Chase Bank which provided for, among other matters, an extension of the maturity date from August 2, 2027 to August 2, 2028. The weighted-average interest rate on short-term borrowings outstanding at September 30, 2023 was 6.48% compared to 5.40% at December 31, 2022. Long-term Financing Agreements In July 2022, SJWC entered into a note purchase agreement with certain affiliates of New York Life Insurance, Metropolitan Life Insurance, Northwestern Mutual Life Insurance, and John Hancock Life Insurance (collectively the “Purchasers”), pursuant to which SJWC will sell an aggregate principal amount of $70,000 of its 4.85% Senior Notes, Series P (“Series P Notes”) to the Purchasers. The Series P Notes are unsecured obligations of SJWC and are due on February 1, 2053. Interest is payable semi-annually in arrears on February 1st and August 1st of each year. The note purchase agreement contains customary affirmative and negative covenants for as long as the Series P Notes are outstanding. The Series P Notes are also subject to customary events of default. The closing of the note purchase agreement occurred on January 25, 2023. In August 2023, TWR closed on an asset acquisition from KT Water Resources L.P. which included of an obligation for a post-closing production payment of $29,000 to the seller over a period of up to 29 years. This obligation was recorded at its fair value of $15,400 as of the date of the acquisition. Please see Note 10 of “Notes to Condensed Consolidated Financial Statements” for additional information about this obligation.

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2023
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes For the three and nine months ended September 30, 2023, income tax expense was $4,561 and $4,127, respectively. Income tax expense for the three and nine months ended September 30, 2022 was $223 and $3,658, respectively. The effective consolidated income tax rates were 11% and 1% for the three months ended September 30, 2023 and 2022, respectively, and 6% and 8% for the nine months ended September 30, 2023 and 2022, respectively. The higher effective tax rate for the three months ended September 30, 2023 was primarily due to the tax benefit relating to a tax accounting method change recorded in the third quarter 2022. There was no such benefit recorded in the third quarter of 2023. The lower effective tax rate for the nine months ended September 30, 2023 was primarily due to higher flow-through tax benefits. In April 2023, the Internal Revenue Service issued additional tax guidance that has allowed the company to revisit certain historical income tax reserves. Pursuant to the issuance of this guidance, which provided additional clarification regarding some of the uncertain tax areas, the company re-evaluated the risk relating to repair deductions. The result of the analysis led to a partial release of an uncertain tax position reserve of $3,087 which was recorded in the second quarter of 2023. The release relates to repairs expenditures that are more likely than not to be sustained on audit. SJW Group had unrecognized tax benefits, before the impact of deductions of state taxes, excluding interest and penalties, of approximately $5,981 and $9,004 as of September 30, 2023 and December 31, 2022, respectively. SJW Group currently does not expect uncertain tax positions to change significantly over the next 12 months, except in the case of a lapse of the statute of limitations.

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2023
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and ContingenciesSJW Group is subject to ordinary routine litigation incidental to its business. There are no pending legal proceedings to which SJW Group or any of its subsidiaries is a party, or to which any of its properties is the subject, that are expected to have a material effect on SJW Group’s business, financial position, results of operations or cash flows.

Benefit Plans

Benefit Plans	9 Months Ended
	Sep. 30, 2023
Retirement Benefits [Abstract]
Benefit Plans	Benefit Plans SJW Group maintains noncontributory defined benefit pension plans for its eligible employees. SJWC and CTWS employees hired before March 31, 2008, and January 1, 2009, respectively, are entitled to benefits under the pension plans based on the employee’s years of service and compensation. For SJWC employees hired on or after March 31, 2008, benefits are determined using a cash balance formula based upon compensation credits and interest credits for each employee. Starting in 2023, TWC employees are also eligible to participate under SJWC’s cash balance plan. Certain CTWS employees hired before March 1, 2012, and covered by a plan merged into the CTWS plan in 2013 are also entitled to benefits based on the employee’s years of service and compensation. CTWS employees hired on or after January 1, 2009, are entitled to an additional 1.5% of eligible compensation to their company sponsored savings plan. In addition, senior management hired before March 31, 2008 for SJWC and January 1, 2009 for CTWS, are eligible to receive additional retirement benefits under supplemental executive retirement plans and retirement contracts. SJWC’s senior management hired on or after March 31, 2008, are eligible to receive additional retirement benefits under SJWC’s Cash Balance Executive Supplemental Retirement Plan. The supplemental retirement plans and Cash Balance Executive Supplemental Retirement Plan are non-qualified plans in which only senior management and other designated members of management may participate. SJW Group also provides health care and life insurance benefits for retired employees under employer-sponsored postretirement benefits that are not pension plans. The components of net periodic benefit costs for the defined benefit plans and other postretirement benefits for the three and nine months ended September 30, 2023 and 2022 are as follows: Pension Benefits Other Benefits Three months ended September 30, 2023 2022 2023 2022 Service cost $ 1,892 2,397 $ 160 255 Interest cost 3,557 2,642 317 218 Expected return on assets (3,442) (4,823) (217) (221) Unrecognized actuarial loss 554 1,257 (87) (75) Amortization of prior service cost 4 4 — — Total $ 2,565 1,477 $ 173 177 Pension Benefits Other Benefits Nine months ended September 30, 2023 2022 2023 2022 Service cost $ 5,676 7,191 $ 480 765 Interest cost 10,672 7,925 951 656 Expected return on assets (11,580) (14,469) (651) (663) Unrecognized actuarial loss 1,662 3,772 (263) (226) Amortization of prior service cost 11 12 — — Total $ 6,441 4,431 $ 517 532 In 2023, SJW Group expects to make required and discretionary cash contributions of up to $8,653 to the pension plans and other postretirement benefits. For the three and nine months ended September 30, 2023, SJW Group has made $3,567 and $7,627, respectively, of contributions to such plans.

Equity Plans

Equity Plans	9 Months Ended
	Sep. 30, 2023
Share-Based Payment Arrangement [Abstract]
Equity Plans	Equity Plans SJW Group’s long-term incentive plans provide employees, non-employee board members or the board of directors of any parent or subsidiary, consultants, and other independent advisors who provide services to the company or subsidiary the opportunity to acquire an equity interest in SJW Group. SJW Group also maintains stock plans in connection with its acquisition of CTWS which are no longer granting new stock awards. In addition, shares are issued to employees under SJW Group’s employee stock purchase plan. As of September 30, 2023, 150,882 shares are issuable upon the vesting of outstanding restricted stock units and deferred restricted stock units and an additional 1,136,979 shares are available for award issuances under the long-term incentive plans. On April 26, 2023, SJW Group adopted the successor plans, the 2023 Long-Term Incentive Plan and the 2023 Employee Stock Purchase Plan, to replace the Amended and Restated Long-Term Incentive Plan (the, “Predecessor Incentive Plan”) and the 2014 Employee Stock Purchase Plan (the, “Predecessor ESPP”), respectively. The Predecessor Incentive Plan terminated on April 23, 2023 and the Predecessor ESPP terminated on July 31, 2023. Each outstanding award under the Predecessor Incentive Plan will remain outstanding under the Predecessor Incentive Plan and shall be governed solely by the terms of the documents evidencing such awards. The 2023 Long-Term Incentive Plan reserves a total of 1,142,000 shares of SJW Group’s common stock for issuance to employees, non-employee board members or the board of directors of any parent or subsidiary, consultants, and other independent advisors who provide services to the SJW Group and its subsidiaries. The 2023 Employee Stock Purchase Plan reserves for a total of 500,000 shares of SJW Group’s common stock for issuance for eligible employees to purchase common stock at a discount through accumulated payroll deductions. Remaining reserves for both of the predecessor plans were terminated with the adoption of the successor plans. A summary of compensation costs charged to income, by award type, and proceeds from the ESPP, are presented below for the three and nine months ended September 30, 2023 and 2022: Three months ended September 30, Nine months ended September 30, 2023 2022 2023 2022 Compensation costs charged to income: ESPP $ 187 184 $ 378 369 Restricted stock and deferred restricted stock 1,051 1,214 3,198 3,622 Total compensation costs charged to income $ 1,238 1,398 $ 3,576 3,991 ESPP proceeds $ 1,061 1,042 $ 2,141 2,091 Restricted Stock and Deferred Restricted Stock For the three months ended September 30, 2023 and 2022, SJW Group granted 968 and 1,723, respectively, one year and three year service-based restricted stock awards with a weighted-average grant date fair value per unit of $63.96 and $62.56, respectively. For the nine months ended September 30, 2023 and 2022, SJW Group granted 38,310 and 45,726, respectively, one year and three year service-based restricted stock awards with a weighted-average grant date fair value per unit of $76.88 and $65.31, respectively. For the three months ended September 30, 2023, no performance-based or market-based restricted stock awards were granted. For the three months ended September 30, 2022, SJW Group granted 2,193 target units performance-based and market-based restricted stock awards with a weighted-average grant date fair value per unit of $69.70. For the nine months ended September 30, 2023 and 2022, SJW Group granted 31,345 and 35,846 target units, respectively, performance-based and market-based restricted stock awards granted with a weighted-average grant date fair value per unit of $80.05 and $70.31, respectively. Based upon actual attainment relative to the target performance metric, the number of shares issuable can range between 0% to 150% of the target number of shares for performance-based restricted stock awards, or between 0% and 200% of the target number of shares for market-based restricted stock awards. As of September 30, 2023, the total unrecognized compensation costs related to restricted and deferred restricted stock plans was $5,734. This cost is expected to be recognized over a weighted-average period of 1.81 years. Employee Stock Purchase Plan SJW Group’s recorded expenses for its ESPP were $81 and $277 for the three and nine months ended September 30, 2023, respectively, and $94 and $276 for the three and nine months ended September 30, 2022, respectively. The total unrecognized compensation costs related to the semi-annual offering period that ends January 31, 2024, for the employee stock purchase plan is approximately $130. This cost is expected to be recognized during the fourth quarter of 2023.

Segment and Non-Tariffed Busine

Segment and Non-Tariffed Business Reporting	9 Months Ended
	Sep. 30, 2023
Segment Reporting [Abstract]
Segment and Non-Tariffed Business Reporting	Segment and Non-Tariffed Business Reporting SJW Group is a holding company with four subsidiaries: (i) SJWC, (ii) SJWTX Holdings, Inc., a holding company for TWC its consolidated variable interest entity, Acequia Water Supply Corporation, TWOS and TWR, (iii) SJW Land Company and its consolidated variable interest entity, 444 West Santa Clara Street, L.P., which operated commercial building rentals, and (iv) SJWNE LLC, a holding company for CTWS and its subsidiaries, CWC, MWC, NEWUS and Chester Realty, Inc. SJWC, SJWTX Holdings, Inc. and SJWNE LLC are water utility operations with both regulated and non-tariffed businesses. SJW Group’s reportable segments have been determined based on information used by the chief operating decision maker. SJW Group’s chief operating decision maker includes the Chairman, President and Chief Executive Officer, and his executive staff. The first segment provides water utility and utility-related services to its customers through SJW Group’s subsidiaries, SJWC, CWC, TWC, MWC, and NEWUS together referred to as “Water Utility Services”. The second segment consists of property management and investment activity conducted by SJW Land Company and Chester Realty, Inc., referred to as “Real Estate Services.” The following tables set forth information relating to SJW Group’s reportable segments and distribution of regulated and non-tariffed business activities within the reportable segments. Certain allocated assets, such as goodwill, revenue and expenses have been included in the reportable segment amounts. Other business activity of SJW Group not included in the reportable segments is included in the “All Other” category. For Three Months Ended September 30, 2023 Water Utility Services Real Estate Services All Other (1) SJW Group Regulated Non-tariffed Non-tariffed Non-tariffed Regulated Non-tariffed Total Operating revenue $ 199,537 3,876 1,430 — 199,537 5,306 204,843 Operating expense 144,102 2,337 691 1,107 144,102 4,135 148,237 Operating income (loss) 55,435 1,539 739 (1,107) 55,435 1,171 56,606 Net income (loss) 37,545 2,198 563 (4,084) 37,545 (1,323) 36,222 Depreciation and amortization 26,147 84 1 223 26,147 308 26,455 Interest on long-term debt and other interest expense 10,839 112 — 5,793 10,839 5,905 16,744 Provision (benefit) for income taxes 5,933 428 196 (1,996) 5,933 (1,372) 4,561 Assets 3,706,359 43,872 44,560 48,637 3,706,359 137,069 3,843,428 For Three Months Ended September 30, 2022 Water Utility Services Real Estate Services All Other (1) SJW Group Regulated Non-tariffed Non-tariffed Non-tariffed Regulated Non-tariffed Total Operating revenue 171,044 3,463 1,474 — 171,044 4,937 175,981 Operating expense 134,739 2,092 975 573 134,739 3,640 138,379 Operating income (loss) 36,305 1,371 499 (573) 36,305 1,297 37,602 Net income (loss) 29,176 (10) 367 (4,499) 29,176 (4,142) 25,034 Depreciation and amortization 24,919 84 302 224 24,919 610 25,529 Interest on long-term debt and other interest expense 9,111 — — 5,079 9,111 5,079 14,190 Provision (benefit) for income taxes 103 392 128 (400) 103 120 223 Assets 3,498,396 5,302 43,017 57,989 3,498,396 106,308 3,604,704 For Nine Months Ended September 30, 2023 Water Utility Services Real Estate Services All Other (1) SJW Group Regulated Non-tariffed Non-tariffed Non-tariffed Regulated Non-tariffed Total Operating revenue 485,334 9,398 4,293 — 485,334 13,691 499,025 Operating expense 375,647 5,540 2,251 2,645 375,647 10,436 386,083 Operating income (loss) 109,687 3,858 2,042 (2,645) 109,687 3,255 112,942 Net income (loss) 71,277 3,412 1,532 (10,183) 71,277 (5,239) 66,038 Depreciation and amortization 77,644 253 305 670 77,644 1,228 78,872 Interest on long-term debt and other interest expense 32,232 112 — 16,569 32,232 16,681 48,913 Provision (benefit) for income taxes 8,759 1,071 581 (6,284) 8,759 (4,632) 4,127 Assets 3,706,359 43,872 44,560 48,637 3,706,359 137,069 3,843,428 For Nine Months Ended September 30, 2022 Water Utility Services Real Estate Services All Other (1) SJW Group Regulated Non-tariffed Non-tariffed Non-tariffed Regulated Non-tariffed Total Operating revenue 435,823 9,305 4,196 — 435,823 13,501 449,324 Operating expense 355,620 7,868 2,799 2,444 355,620 13,111 368,731 Operating income (loss) 80,203 1,437 1,397 (2,444) 80,203 390 80,593 Net income (loss) 51,656 441 998 (12,766) 51,656 (11,327) 40,329 Depreciation and amortization 73,888 2,821 903 730 73,888 4,454 78,342 Interest on long-term debt and other interest expense 27,676 — — 14,484 27,676 14,484 42,160 Provision (benefit) for income taxes 4,844 398 341 (1,925) 4,844 (1,186) 3,658 Assets 3,498,396 5,302 43,017 57,989 3,498,396 106,308 3,604,704 ____________________

Acquisitions

Acquisitions	9 Months Ended
	Sep. 30, 2023
Business Combination and Asset Acquisition [Abstract]
Acquisitions	Acquisitions On January 13, 2023, TWC reached an agreement to acquire KT Water Development Ltd. (“KT Water Development”) and SJWTX Holdings, Inc. reached an agreement to acquire KT Water Resources L.P. (“KT Water Resour ces”). The agreement between SJWTX Holdings, Inc. and KT Water Resources, LP, was assigned to TWR prior to closing. KT Water Development is an investor-owned water utility providing water to approximately 1,725 people through over 570 service connections in the Rockwall Ranch subdivision in southern Comal County, Texas. KT Water Resources L.P. is a wholesale groundwater resource supplier to KT Water Development formed to develop wholesale water supplies for the fast-growing utilities of Comal County, Texas. T he Public Utility Commission of Texas (“PUCT”) approved the proposed KT Water Development acquisition on July 24, 2023. The acquisition of KT Water Resources did not require PUCT approval. Both transactions closed on August 14, 2023. Further information regarding each of the acquisitions is set forth below. KT Water Development The purchase price of KT Water Development was $7,338, all of which was cash, and was determined in accordance with a fair market value process defined under the Texas Water Code. The transaction was accounted for as a business combination in accordance with Accounting Standards Codification (“ASC”) Topic 805—“Business Combinations.” Based on the preliminary purchase price allocation, the transaction consideration was allocated to utility plant. The final allocation will be completed within one year from the acquisition date. Transaction costs were not material. The results of KT Water Development are included in SJW Group’s consolidated statements of comprehensive income since the acquisition date and were not material. Pro forma financial information has not been presented because the acquisition was not material to SJW Group’s consolidated financial statements. KT Water Resources The total purchase price of KT Water Resources of $39,891 and consisted of a $24,491 up-front cash payment and an obligation for a post-closing production payment with an acquisition date fair value of $15,400. Considering transaction costs of $170, the total cost of the acquisition was $40,061. The KT Water Resources acquisition was accounted for as an asset acquisition in accordance with ASC Topic 805. The total cost was allocated as follows based on the fair values of the assets acquired: $28,386 to other intangible asset, $11,684 to nonutility property, and $9 to other current liabilities. The other intangible asset represents indefinite life water rights that will not be amortized, but instead will be tested for impairment annually, or more frequently if events or changes in circumstances indicate that it is more likely than not that the asset is impaired. The nonutility property consists of wells, land, easements, and construction in progress. The post-closing production payment represents an obligation to pay a total amount of $29,000 to the seller over a period up to 29 years. The repayment schedule is based on the quantity of groundwater produced from the acquired wells, subject to certain provisions in the purchase agreement. The fair value of the post-closing payment as of the acquisition date was determined by discounting forecasted repayments based on management’s estimates of future groundwater production. The difference

General (Policies)

General (Policies)	9 Months Ended
	Sep. 30, 2023
Accounting Policies [Abstract]
Basis of Accounting	The unaudited interim financial information has been prepared in accordance with accounting principles generally accepted in the United States of America and in accordance with the instructions for Form 10-Q and Rule 10-01 of Regulation S-X promulgated by the Securities and Exchange Commission. The Notes to Consolidated Financial Statements in SJW Group’s 2022 Annual Report on Form 10-K should be read with the accompanying unaudited condensed consolidated financial statements.
Revenue	Revenue Water sales are seasonal in nature and influenced by weather conditions. The timing of precipitation and climatic conditions can cause seasonal water consumption by customers to vary significantly. Due to the seasonal nature of the water business, the operating results for interim periods are not indicative of the operating results for a 12-month period. Revenue is generally higher in the warm, dry summer months when water usage and sales are greater, and lower in the winter months when cooler temperatures and increased precipitation curtail water usage resulting in lower sales.
Fair Value Measurement	Fair Value MeasurementThe following instruments are not measured at fair value on SJW Group’s condensed consolidated balance sheets as of September 30, 2023, but require disclosure of their fair values: cash and cash equivalents, accounts receivable and accounts payable. The estimated fair value of such instruments as of September 30, 2023 approximates their carrying value as reported on the condensed consolidated balance sheets. There have been no changes in valuation techniques during the three and nine months ended September 30, 2023. The fair value of these instruments would be categorized as Level 2 in the fair value hierarchy, with the exception of cash and cash equivalents, which would be categorized as Level 1.
Earnings per Share	Earnings per ShareBasic earnings per share is calculated using income available to common stockholders, divided by the weighted average number of shares outstanding during the period. Diluted earnings per share is calculated using income available to common stockholders divided by the weighted average number of shares of common stock including both shares outstanding and shares potentially issuable in connection with restricted common stock awards under SJW Group’s long-term incentive plans, shares potentially issuable under the performance stock plans assumed through the business combination with CTWS, and shares potentially issuable under SJW Group’s employee stock purchase plans.

General (Tables)

General (Tables)	9 Months Ended
	Sep. 30, 2023
Accounting Policies [Abstract]
Schedule of Major Streams of Revenue	The major streams of revenue for SJW Group are as follows: Three months ended September 30, Nine months ended September 30, 2023 2022 2023 2022 Revenue from contracts with customers $ 211,716 169,972 $ 507,276 440,406 Alternative revenue programs, net 957 3,172 (2,638) (1,737) Other balancing and memorandum accounts, net (8,742) 1,857 (8,564) 6,719 Other regulatory mechanisms, net (518) (494) (1,342) (260) Rental income 1,430 1,474 4,293 4,196 $ 204,843 175,981 $ 499,025 449,324
Schedule of Nonutility Properties and Real Estate Investments	The major components of real estate investments and nonutility properties as of September 30, 2023 and December 31, 2022, are as follows: September 30, December 31, Land $ 4,137 12,615 Wholesale water supply assets 8,465 — Buildings and improvements 470 45,418 Subtotal 13,072 58,033 Less: accumulated depreciation and amortization 192 17,158 Total $ 12,880 40,875 September 30, Land $ 13,170 Buildings and improvements 44,950 Subtotal 58,120 Less: accumulated depreciation and amortization 17,270 Total $ 40,850

Regulatory Matters (Tables)

Regulatory Matters (Tables)	9 Months Ended
	Sep. 30, 2023
Regulated Operations [Abstract]
Schedule of Regulatory Assets, Net	Regulatory assets, net are comprised of the following as of September 30, 2023 and December 31, 2022: September 30, 2023 December 31, 2022 Regulatory assets: Income tax temporary differences, net $ 62,745 43,434 Postretirement pensions and other postretirement benefits 30,076 31,493 Business combinations debt premium, net 15,490 17,396 Monterey Water Revenue Adjustment Mechanism (“MWRAM”) 12,162 10,864 Water Conservation Memorandum Account (“WCMA”) (7,683) (5,039) 2022 General Rate Case Interim Memorandum Account 9,513 20,650 Cost recovery balancing and memorandum accounts 8,267 16,545 All other balancing and memorandum accounts 4,344 2,749 Water Revenue Adjustment (“WRA”) (5,428) (4,488) Other, net 10,507 9,739 Total regulatory assets, net in Condensed Consolidated Balance Sheets 139,993 143,343 Less: current regulatory assets, net 8,573 16,068 Total regulatory assets, net, less current portion $ 131,420 127,275

Benefit Plans (Tables)

Benefit Plans (Tables)	9 Months Ended
	Sep. 30, 2023
Retirement Benefits [Abstract]
Schedule of Net Benefit Costs	The components of net periodic benefit costs for the defined benefit plans and other postretirement benefits for the three and nine months ended September 30, 2023 and 2022 are as follows: Pension Benefits Other Benefits Three months ended September 30, 2023 2022 2023 2022 Service cost $ 1,892 2,397 $ 160 255 Interest cost 3,557 2,642 317 218 Expected return on assets (3,442) (4,823) (217) (221) Unrecognized actuarial loss 554 1,257 (87) (75) Amortization of prior service cost 4 4 — — Total $ 2,565 1,477 $ 173 177 Pension Benefits Other Benefits Nine months ended September 30, 2023 2022 2023 2022 Service cost $ 5,676 7,191 $ 480 765 Interest cost 10,672 7,925 951 656 Expected return on assets (11,580) (14,469) (651) (663) Unrecognized actuarial loss 1,662 3,772 (263) (226) Amortization of prior service cost 11 12 — — Total $ 6,441 4,431 $ 517 532

Equity Plans (Tables)

Equity Plans (Tables)	9 Months Ended
	Sep. 30, 2023
Share-Based Payment Arrangement [Abstract]
Schedule of Compensation Costs Charged to Income and Proceeds from the Exercise of Any Restricted Stock and Similar Instruments that are Recorded to Additional Paid-In Capital and Common Stock, by Award Type	A summary of compensation costs charged to income, by award type, and proceeds from the ESPP, are presented below for the three and nine months ended September 30, 2023 and 2022: Three months ended September 30, Nine months ended September 30, 2023 2022 2023 2022 Compensation costs charged to income: ESPP $ 187 184 $ 378 369 Restricted stock and deferred restricted stock 1,051 1,214 3,198 3,622 Total compensation costs charged to income $ 1,238 1,398 $ 3,576 3,991 ESPP proceeds $ 1,061 1,042 $ 2,141 2,091

Segment and Non-Tariffed Busi_2

Segment and Non-Tariffed Business Reporting (Tables)	9 Months Ended
	Sep. 30, 2023
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment	The following tables set forth information relating to SJW Group’s reportable segments and distribution of regulated and non-tariffed business activities within the reportable segments. Certain allocated assets, such as goodwill, revenue and expenses have been included in the reportable segment amounts. Other business activity of SJW Group not included in the reportable segments is included in the “All Other” category. For Three Months Ended September 30, 2023 Water Utility Services Real Estate Services All Other (1) SJW Group Regulated Non-tariffed Non-tariffed Non-tariffed Regulated Non-tariffed Total Operating revenue $ 199,537 3,876 1,430 — 199,537 5,306 204,843 Operating expense 144,102 2,337 691 1,107 144,102 4,135 148,237 Operating income (loss) 55,435 1,539 739 (1,107) 55,435 1,171 56,606 Net income (loss) 37,545 2,198 563 (4,084) 37,545 (1,323) 36,222 Depreciation and amortization 26,147 84 1 223 26,147 308 26,455 Interest on long-term debt and other interest expense 10,839 112 — 5,793 10,839 5,905 16,744 Provision (benefit) for income taxes 5,933 428 196 (1,996) 5,933 (1,372) 4,561 Assets 3,706,359 43,872 44,560 48,637 3,706,359 137,069 3,843,428 For Three Months Ended September 30, 2022 Water Utility Services Real Estate Services All Other (1) SJW Group Regulated Non-tariffed Non-tariffed Non-tariffed Regulated Non-tariffed Total Operating revenue 171,044 3,463 1,474 — 171,044 4,937 175,981 Operating expense 134,739 2,092 975 573 134,739 3,640 138,379 Operating income (loss) 36,305 1,371 499 (573) 36,305 1,297 37,602 Net income (loss) 29,176 (10) 367 (4,499) 29,176 (4,142) 25,034 Depreciation and amortization 24,919 84 302 224 24,919 610 25,529 Interest on long-term debt and other interest expense 9,111 — — 5,079 9,111 5,079 14,190 Provision (benefit) for income taxes 103 392 128 (400) 103 120 223 Assets 3,498,396 5,302 43,017 57,989 3,498,396 106,308 3,604,704 For Nine Months Ended September 30, 2023 Water Utility Services Real Estate Services All Other (1) SJW Group Regulated Non-tariffed Non-tariffed Non-tariffed Regulated Non-tariffed Total Operating revenue 485,334 9,398 4,293 — 485,334 13,691 499,025 Operating expense 375,647 5,540 2,251 2,645 375,647 10,436 386,083 Operating income (loss) 109,687 3,858 2,042 (2,645) 109,687 3,255 112,942 Net income (loss) 71,277 3,412 1,532 (10,183) 71,277 (5,239) 66,038 Depreciation and amortization 77,644 253 305 670 77,644 1,228 78,872 Interest on long-term debt and other interest expense 32,232 112 — 16,569 32,232 16,681 48,913 Provision (benefit) for income taxes 8,759 1,071 581 (6,284) 8,759 (4,632) 4,127 Assets 3,706,359 43,872 44,560 48,637 3,706,359 137,069 3,843,428 For Nine Months Ended September 30, 2022 Water Utility Services Real Estate Services All Other (1) SJW Group Regulated Non-tariffed Non-tariffed Non-tariffed Regulated Non-tariffed Total Operating revenue 435,823 9,305 4,196 — 435,823 13,501 449,324 Operating expense 355,620 7,868 2,799 2,444 355,620 13,111 368,731 Operating income (loss) 80,203 1,437 1,397 (2,444) 80,203 390 80,593 Net income (loss) 51,656 441 998 (12,766) 51,656 (11,327) 40,329 Depreciation and amortization 73,888 2,821 903 730 73,888 4,454 78,342 Interest on long-term debt and other interest expense 27,676 — — 14,484 27,676 14,484 42,160 Provision (benefit) for income taxes 4,844 398 341 (1,925) 4,844 (1,186) 3,658 Assets 3,498,396 5,302 43,017 57,989 3,498,396 106,308 3,604,704 ____________________

General - Narrative (Details)

General - Narrative (Details)		3 Months Ended	9 Months Ended
	Mar. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)	Sep. 30, 2023 subsidiary
Schedule of Investments [Line Items]
Number of subsidiaries | subsidiary			4
Gain on sale of real estate investments		$ 5,442,000
Warehouse Building
Schedule of Investments [Line Items]
Impairment, long-lived asset	$ 0

General - Major Streams of Reve

General - Major Streams of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Accounting Policies [Abstract]
Revenue from contracts with customers	$ 211,716	$ 169,972	$ 507,276	$ 440,406
Alternative revenue programs, net	957	3,172	(2,638)	(1,737)
Other balancing and memorandum accounts, net	(8,742)	1,857	(8,564)	6,719
Other regulatory mechanisms, net	(518)	(494)	(1,342)	(260)
Rental income	1,430	1,474	4,293	4,196
Total revenues	$ 204,843	$ 175,981	$ 499,025	$ 449,324

General - Schedule of Nonutilit

General - Schedule of Nonutility Properties and Real Estate Investments (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Schedule of Investments [Line Items]
Land	$ 4,137	$ 12,615
Wholesale water supply assets	8,465	0
Buildings and improvements	470	45,418
Subtotal	13,072	58,033
Less accumulated depreciation and amortization	192	17,158
Net nonutility properties and real estate investments	12,880	$ 40,875
Warehouse Building
Schedule of Investments [Line Items]
Land	13,170
Buildings and improvements	44,950
Subtotal	58,120
Less accumulated depreciation and amortization	17,270
Net nonutility properties and real estate investments	$ 40,850

General - Fair Value Measuremen

General - Fair Value Measurement (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	$ 1,299,114	$ 1,294,354
Long-term debt, book value	1,577,233	1,496,325
Fair Value, Inputs, Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	1,283,602
Fair Value, Inputs, Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	15,512
Fair Value, Inputs, Level 1 | Supplemental Employee Retirement Plan
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of plan assets	$ 2,808	$ 2,809

General - Earnings per Share (D

General - Earnings per Share (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Restricted Stock Units (RSUs)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive restricted common stock units excluded from computation of earnings per share (in shares)	1,826	2,416	12,524	18,240

Regulatory Matters - Regulatory

Regulatory Matters - Regulatory Assets, Net (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Regulatory Assets [Line Items]
Total regulatory assets, net in Condensed Consolidated Balance Sheets	$ 139,993	$ 143,343
Less: current regulatory assets, net	8,573	16,068
Total regulatory assets, net, less current portion	131,420	127,275
Income tax temporary differences, net
Regulatory Assets [Line Items]
Total regulatory assets, net in Condensed Consolidated Balance Sheets	62,745	43,434
Postretirement pensions and other postretirement benefits
Regulatory Assets [Line Items]
Total regulatory assets, net in Condensed Consolidated Balance Sheets	30,076	31,493
Business combinations debt premium, net
Regulatory Assets [Line Items]
Total regulatory assets, net in Condensed Consolidated Balance Sheets	15,490	17,396
Monterey Water Revenue Adjustment Mechanism (“MWRAM”)
Regulatory Assets [Line Items]
Total regulatory assets, net in Condensed Consolidated Balance Sheets	12,162	10,864
Water Conservation Memorandum Account (“WCMA”)
Regulatory Assets [Line Items]
Total regulatory assets, net in Condensed Consolidated Balance Sheets	(7,683)	(5,039)
2022 General Rate Case Interim Memorandum Account
Regulatory Assets [Line Items]
Total regulatory assets, net in Condensed Consolidated Balance Sheets	9,513	20,650
Cost recovery balancing and memorandum accounts
Regulatory Assets [Line Items]
Total regulatory assets, net in Condensed Consolidated Balance Sheets	8,267	16,545
All other balancing and memorandum accounts
Regulatory Assets [Line Items]
Total regulatory assets, net in Condensed Consolidated Balance Sheets	4,344	2,749
Water Revenue Adjustment (“WRA”)
Regulatory Assets [Line Items]
Total regulatory assets, net in Condensed Consolidated Balance Sheets	(5,428)	(4,488)
Other, net
Regulatory Assets [Line Items]
Total regulatory assets, net in Condensed Consolidated Balance Sheets	$ 10,507	$ 9,739

Regulatory Matters - Narrative

Regulatory Matters - Narrative (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Regulated Operations [Abstract]
Authorized revenue, threshold percentage	2%
Regulatory assets, net not earning a return	$ 48,954	$ 52,066

Capitalization (Details)

Capitalization (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	9 Months Ended	22 Months Ended
	Sep. 30, 2023	Sep. 30, 2023	Sep. 30, 2023	Mar. 31, 2023	Feb. 28, 2023	Dec. 31, 2022
Subsidiary, Sale of Stock [Line Items]
Common stock, par value (in usd per share)	$ 0.001	$ 0.001	$ 0.001			$ 0.001
At The Market Offering
Subsidiary, Sale of Stock [Line Items]
Common stock, par value (in usd per share)				$ 0.001
Aggregate gross sales price (up to)				$ 240,000	$ 100,000
Shares issued in offering (in shares)	169,421	1,029,924	1,914,775
Weighted average price per share (in usd per share)	$ 69.57	$ 74.57	$ 74.05
Net proceeds from stock offering	$ 11,505	$ 75,284	$ 138,716
Total equity distribution	$ 98,209	$ 98,209	$ 98,209

Bank Borrowings and Long-Term_2

Bank Borrowings and Long-Term Liabilities (Details) - USD ($) $ in Thousands		9 Months Ended
	Aug. 14, 2023	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022	Jul. 31, 2022
Debt Instrument [Line Items]
Weighted-average interest rate on short-term		6.48%		5.40%
Seller financing in asset acquisition, net of discount		$ 15,400	$ 0
KT Water Resources
Debt Instrument [Line Items]
Asset acquisition, post-closing production payment	$ 29,000
Asset acquisition, period of post-closing production payment	29 years
Seller financing in asset acquisition, net of discount	$ 15,400
San Jose Water Company | 4.85% Senior Note, Series P | Senior Notes
Debt Instrument [Line Items]
Aggregate principal amount					$ 70,000
Interest rate					4.85%

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Apr. 30, 2023	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Provision (benefit) for income taxes		$ 4,561	$ 223	$ 4,127	$ 3,658
Effective consolidated income tax rate		11%	1%	6%	8%
Unrecognized tax benefits, period increase (decrease)	$ (3,087)
Unrecognized tax benefits		$ 5,981		$ 5,981		$ 9,004

Benefit Plans - Narrative (Deta

Benefit Plans - Narrative (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2023 USD ($)	Sep. 30, 2023 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Employer plan contributions	$ 3,567	$ 7,627
Maximum
Defined Benefit Plan Disclosure [Line Items]
Estimated employer contributions for the remainder of fiscal year	$ 8,653	$ 8,653
CTWS Employees
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase		1.50%

Benefit Plans - Schedule of Net

Benefit Plans - Schedule of Net Benefit Costs (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 1,892	$ 2,397	$ 5,676	$ 7,191
Interest cost	3,557	2,642	10,672	7,925
Expected return on assets	(3,442)	(4,823)	(11,580)	(14,469)
Unrecognized actuarial loss	554	1,257	1,662	3,772
Amortization of prior service cost	4	4	11	12
Total	2,565	1,477	6,441	4,431
Other Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	160	255	480	765
Interest cost	317	218	951	656
Expected return on assets	(217)	(221)	(651)	(663)
Unrecognized actuarial loss	(87)	(75)	(263)	(226)
Amortization of prior service cost	0	0	0	0
Total	$ 173	$ 177	$ 517	$ 532

Equity Plans - Narrative (Detai

Equity Plans - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Apr. 26, 2023
Restricted stock and deferred restricted stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation costs	$ 5,734		$ 5,734
Recognition period for unrecognized compensation cost			1 year 9 months 21 days
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of equity instruments granted (in shares)	968	1,723
Grant date fair value of equity instruments granted (in usd per share)	$ 63.96	$ 62.56
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of equity instruments granted (in shares)	0	2,193
Grant date fair value of equity instruments granted (in usd per share)		$ 69.70
Performance Shares | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Target vesting percentage			0%
Performance Shares | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Target vesting percentage			150%
Market-based RSU | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Target vesting percentage			0%
Market-based RSU | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Target vesting percentage			200%
Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Remaining shares available for issuance (in shares)					1,142,000
Incentive Plan | Restricted stock and deferred restricted stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issuable upon exercise of incentive plan awards (in shares)	150,882		150,882
Remaining shares available for issuance (in shares)	1,136,979		1,136,979
Number of equity instruments granted (in shares)			38,310	45,726
Service-based restricted stock vesting period	1 year	3 years	1 year	3 years
Grant date fair value of equity instruments granted (in usd per share)			$ 76.88	$ 65.31
Incentive Plan | Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of equity instruments granted (in shares)			31,345	35,846
Grant date fair value of equity instruments granted (in usd per share)			$ 80.05	$ 70.31
ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Remaining shares available for issuance (in shares)					500,000
Unrecognized compensation costs	$ 130		$ 130
Plan expense	$ 81	$ 94	$ 277	$ 276

Equity Plans - Schedule of Comp

Equity Plans - Schedule of Compensation Costs Charged to Income and Proceeds from the Exercise of Any Restricted Stock and Similar Instruments that are Recorded to Additional Paid-In Capital and Common Stock, by Award Type (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation costs charged to income:	$ 1,238	$ 1,398	$ 3,576	$ 3,991
Restricted stock and deferred restricted stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation costs charged to income:	1,051	1,214	3,198	3,622
ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation costs charged to income:	187	184	378	369
ESPP proceeds	$ 1,061	$ 1,042	$ 2,141	$ 2,091

Segment and Non-Tariffed Busi_3

Segment and Non-Tariffed Business Reporting - Narrative (Details)	9 Months Ended
	Sep. 30, 2023 subsidiary
Segment Reporting [Abstract]
Number of subsidiaries	4

Segment and Non-Tariffed Busi_4

Segment and Non-Tariffed Business Reporting - Schedule of Segment Reporting Information, by Segment (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Segment Reporting Information [Line Items]
Operating revenue	$ 204,843			$ 175,981			$ 499,025	$ 449,324
Operating expense	148,237			138,379			386,083	368,731
Operating income (loss)	56,606			37,602			112,942	80,593
Net income (loss)	36,222	$ 18,286	$ 11,530	25,034	$ 11,558	$ 3,737	66,038	40,329
Depreciation and amortization	26,455			25,529			78,872	78,342
Interest on long-term debt and other interest expense	16,744			14,190			48,913	42,160
Provision (benefit) for income taxes	4,561			223			4,127	3,658
Assets	3,843,428			3,604,704			3,843,428	3,604,704	$ 3,632,624
Water Utility Services | Regulated
Segment Reporting Information [Line Items]
Operating revenue	199,537			171,044			485,334	435,823
Operating expense	144,102			134,739			375,647	355,620
Operating income (loss)	55,435			36,305			109,687	80,203
Net income (loss)	37,545			29,176			71,277	51,656
Depreciation and amortization	26,147			24,919			77,644	73,888
Interest on long-term debt and other interest expense	10,839			9,111			32,232	27,676
Provision (benefit) for income taxes	5,933			103			8,759	4,844
Assets	3,706,359			3,498,396			3,706,359	3,498,396
Water Utility Services | Non-tariffed
Segment Reporting Information [Line Items]
Operating revenue	3,876			3,463			9,398	9,305
Operating expense	2,337			2,092			5,540	7,868
Operating income (loss)	1,539			1,371			3,858	1,437
Net income (loss)	2,198			(10)			3,412	441
Depreciation and amortization	84			84			253	2,821
Interest on long-term debt and other interest expense	112			0			112	0
Provision (benefit) for income taxes	428			392			1,071	398
Assets	43,872			5,302			43,872	5,302
Real Estate Services | Non-tariffed
Segment Reporting Information [Line Items]
Operating revenue	1,430			1,474			4,293	4,196
Operating expense	691			975			2,251	2,799
Operating income (loss)	739			499			2,042	1,397
Net income (loss)	563			367			1,532	998
Depreciation and amortization	1			302			305	903
Interest on long-term debt and other interest expense	0			0			0	0
Provision (benefit) for income taxes	196			128			581	341
Assets	44,560			43,017			44,560	43,017
All Other | Non-tariffed
Segment Reporting Information [Line Items]
Operating revenue	0			0			0	0
Operating expense	1,107			573			2,645	2,444
Operating income (loss)	(1,107)			(573)			(2,645)	(2,444)
Net income (loss)	(4,084)			(4,499)			(10,183)	(12,766)
Depreciation and amortization	223			224			670	730
Interest on long-term debt and other interest expense	5,793			5,079			16,569	14,484
Provision (benefit) for income taxes	(1,996)			(400)			(6,284)	(1,925)
Assets	48,637			57,989			48,637	57,989
SJW Group | Regulated
Segment Reporting Information [Line Items]
Operating revenue	199,537			171,044			485,334	435,823
Operating expense	144,102			134,739			375,647	355,620
Operating income (loss)	55,435			36,305			109,687	80,203
Net income (loss)	37,545			29,176			71,277	51,656
Depreciation and amortization	26,147			24,919			77,644	73,888
Interest on long-term debt and other interest expense	10,839			9,111			32,232	27,676
Provision (benefit) for income taxes	5,933			103			8,759	4,844
Assets	3,706,359			3,498,396			3,706,359	3,498,396
SJW Group | Non-tariffed
Segment Reporting Information [Line Items]
Operating revenue	5,306			4,937			13,691	13,501
Operating expense	4,135			3,640			10,436	13,111
Operating income (loss)	1,171			1,297			3,255	390
Net income (loss)	(1,323)			(4,142)			(5,239)	(11,327)
Depreciation and amortization	308			610			1,228	4,454
Interest on long-term debt and other interest expense	5,905			5,079			16,681	14,484
Provision (benefit) for income taxes	(1,372)			120			(4,632)	(1,186)
Assets	$ 137,069			$ 106,308			$ 137,069	$ 106,308

Acquisitions (Details)

Acquisitions (Details) $ in Thousands		9 Months Ended
	Aug. 14, 2023 USD ($) serviceConnection people	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)
Business Acquisition [Line Items]
Payments for business acquisition		$ 7,286	$ 433
Seller financing in asset acquisition, net of discount		$ 15,400	$ 0
KT Water Resources
Business Acquisition [Line Items]
Asset acquisition, consideration transferred before transaction costs	$ 39,891
Payment for asset acquisition	24,491
Seller financing in asset acquisition, net of discount	15,400
Asset acquisition, transaction cost	170
Asset acquisition, consideration transferred	40,061
Asset acquisition, other intangible asset	28,386
Asset acquisition, nonutility property	11,684
Asset acquisition, other current liabilities	9
Asset acquisition, post-closing production payment	$ 29,000
Asset acquisition, period of post-closing production payment	29 years
KT Water Development
Business Acquisition [Line Items]
Payments for business acquisition	$ 7,338
TWC | KT Water Development
Business Acquisition [Line Items]
Number of people served from acquisition | people	1,725
TWC | Southern Comal County, Texas | KT Water Development
Business Acquisition [Line Items]
Number of service connections from acquisition | serviceConnection	570