$SJW
SJW GROUP Stock $sjw

$sjw Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-K Financial Statement

#000076682922000060 Filed on February 28, 2022

Income Statement

Concept	2021 Q4	2021	2020 Q4
Revenue	$139.7M	$573.7M	$135.7M
YoY Change	2.97%	1.62%	7.87%
Cost Of Revenue	$19.39M	$89.38M	$20.50M
YoY Change	-5.44%	5.52%	18.5%
Gross Profit	$120.4M	$484.3M	$115.2M
YoY Change	4.47%	0.94%	6.18%
Gross Profit Margin	86.13%	84.42%	84.89%
Selling, General & Admin	$22.40M	$87.33M	$20.60M
YoY Change	8.74%	12.83%	-17.6%
% of Gross Profit	18.61%	18.03%	17.88%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$24.56M	$96.47M	$22.90M
YoY Change	7.26%	5.3%	8.53%
% of Gross Profit	20.41%	19.92%	19.88%
Operating Expenses	$93.97M	$378.4M	$90.90M
YoY Change	3.38%	4.48%	-2.05%
Operating Profit	$26.38M	$111.2M	$24.29M
YoY Change	8.62%	-5.53%	303.76%
Interest Expense	-$12.76M	$54.34M	-$14.70M
YoY Change	-13.22%	0.15%	19.51%
% of Operating Profit	-48.35%	48.88%	-60.52%
Other Income/Expense, Net	$2.319M	$6.770M	$2.900M
YoY Change	-20.03%	14.63%	480.0%
Pretax Income	$21.23M	$68.85M	$12.40M
YoY Change	71.2%	-1.5%	-313.79%
Income Tax	$3.210M	$8.369M	-$800.0K
% Of Pretax Income	15.12%	12.16%	-6.45%
Net Earnings	$18.02M	$60.48M	$13.28M
YoY Change	35.64%	-1.69%	-342.14%
Net Earnings / Revenue	12.89%	10.54%	9.79%
Basic Earnings Per Share		$2.04	$0.47
Diluted Earnings Per Share	$599.3K	$2.03	$0.46
COMMON SHARES
Basic Shares Outstanding	29.83M shares	29.60M shares	28.56M shares
Diluted Shares Outstanding		29.74M shares

Balance Sheet

Concept	2021 Q4	2021	2020 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$10.91M	$10.91M	$5.300M
YoY Change	105.81%	105.81%	-58.91%
Cash & Equivalents	$10.91M		$5.269M
Short-Term Investments
Other Short-Term Assets	$4.902M	$62.44M	$5.125M
YoY Change	-4.35%	-2.29%	75.03%
Inventory
Prepaid Expenses	$9.667M		$8.097M
Receivables	$53.70M	$53.70M	$46.83M
Other Receivables	$7.043M	$7.043M	$11.30M
Total Short-Term Assets	$134.1M	$134.1M	$127.3M
YoY Change	5.3%	5.33%	4.33%
LONG-TERM ASSETS
Property, Plant & Equipment	$2.503B	$2.519B	$2.343B
YoY Change	6.82%	6.86%	5212.68%
Goodwill	$640.5M		$628.1M
YoY Change	1.96%		-0.02%
Intangibles
YoY Change
Long-Term Investments	$15.78M	$15.78M	$14.40M
YoY Change	9.61%	9.61%	11.63%
Other Assets	$819.1M	$162.9M	$805.9M
YoY Change	1.64%	-0.32%	6.06%
Total Long-Term Assets	$3.358B	$3.358B	$3.184B
YoY Change	5.47%	5.47%	319.06%
TOTAL ASSETS
Total Short-Term Assets	$134.1M	$134.1M	$127.3M
Total Long-Term Assets	$3.358B	$3.358B	$3.184B
Total Assets	$3.492B	$3.492B	$3.311B
YoY Change	5.46%	5.46%	5.71%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$30.39M	$30.39M	$34.20M
YoY Change	-11.14%	-11.14%	-1.97%
Accrued Expenses	$42.96M	$42.96M	$46.10M
YoY Change	-6.82%	-6.82%	4.77%
Deferred Revenue
YoY Change
Short-Term Debt	$63.00M	$63.00M	$175.1M
YoY Change	-64.02%	-64.02%	49.4%
Long-Term Debt Due	$39.11M	$39.11M	$76.24M
YoY Change	-48.71%	-48.68%	242.32%
Total Short-Term Liabilities	$203.3M	$203.3M	$350.8M
YoY Change	-42.05%	-42.06%	49.55%
LONG-TERM LIABILITIES
Long-Term Debt	$1.493B	$1.493B	$1.288B
YoY Change	15.95%	15.95%	0.31%
Other Long-Term Liabilities	$24.05M	$561.2M	$21.79M
YoY Change	10.39%	-0.58%	-2.33%
Total Long-Term Liabilities	$1.517B	$2.054B	$1.309B
YoY Change	15.86%	10.91%	0.27%
TOTAL LIABILITIES
Total Short-Term Liabilities	$203.3M	$203.3M	$350.8M
Total Long-Term Liabilities	$1.517B	$2.054B	$1.309B
Total Liabilities	$1.720B	$2.458B	$1.660B
YoY Change	3.62%	2.66%	7.77%
SHAREHOLDERS EQUITY
Retained Earnings	$428.3M		$408.0M
YoY Change	4.96%		6.48%
Common Stock	$606.4M		$510.2M
YoY Change	18.86%		0.69%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$1.035B	$1.035B	$917.2M
YoY Change
Total Liabilities & Shareholders Equity	$3.492B	$3.492B	$3.311B
YoY Change	5.46%	5.46%	5.71%

Cashflow Statement

Concept	2021 Q4	2021	2020 Q4
OPERATING ACTIVITIES
Net Income	$18.02M	$60.48M	$13.28M
YoY Change	35.64%	-1.69%	-342.14%
Depreciation, Depletion And Amortization	$24.56M	$96.47M	$22.90M
YoY Change	7.26%	5.3%	8.53%
Cash From Operating Activities	$29.78M	$130.0M	$33.50M
YoY Change	-11.09%	24.98%	-13.44%
INVESTING ACTIVITIES
Capital Expenditures	-$69.27M	-$251.0M	-$72.40M
YoY Change	-4.32%	18.19%	8.55%
Acquisitions
YoY Change
Other Investing Activities	-$7.825M	-$8.966M	-$600.0K
YoY Change	1204.17%	398.11%	-99.93%
Cash From Investing Activities	-$77.10M	-$260.0M	-$73.10M
YoY Change	5.47%	21.35%	-91.9%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		$91.03M
YoY Change
Debt Paid & Issued, Net		$76.11M
YoY Change		163.08%
Cash From Financing Activities	43.21M	$132.8M	28.60M
YoY Change	51.08%	30.8%	-93.75%
NET CHANGE
Cash From Operating Activities	29.78M	$130.0M	33.50M
Cash From Investing Activities	-77.10M	-$260.0M	-73.10M
Cash From Financing Activities	43.21M	$132.8M	28.60M
Net Change In Cash	-4.102M	$2.850M	-11.00M
YoY Change	-62.71%	-132.85%	-97.3%
FREE CASH FLOW
Cash From Operating Activities	$29.78M	$130.0M	$33.50M
Capital Expenditures	-$69.27M	-$251.0M	-$72.40M
Free Cash Flow	$99.06M	$381.1M	$105.9M
YoY Change	-6.46%	20.42%	0.47%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2021	dei	Entity Central Index Key EntityCentralIndexKey	0000766829
CY2021	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
CY2021	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2021	dei	Amendment Flag AmendmentFlag	false
CY2021	dei	Document Type DocumentType	10-K
CY2021	dei	Document Annual Report DocumentAnnualReport	true
CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-12-31
CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2021	dei	Document Transition Report DocumentTransitionReport	false
CY2021	dei	Entity File Number EntityFileNumber	001-8966
CY2021	dei	Entity Registrant Name EntityRegistrantName	SJW GROUP
CY2021	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2021	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	77-0066628
CY2021	dei	Entity Address Address Line1 EntityAddressAddressLine1	110 West Taylor Street,
CY2021	dei	Entity Address City Or Town EntityAddressCityOrTown	San Jose,
CY2021	dei	Entity Address State Or Province EntityAddressStateOrProvince	CA
CY2021	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	95110
CY2021	dei	City Area Code CityAreaCode	(408)
CY2021	dei	Local Phone Number LocalPhoneNumber	279-7800
CY2021	dei	Security12b Title Security12bTitle	Common Stock, par value $0.001 per share
CY2021	dei	Trading Symbol TradingSymbol	SJW
CY2021	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2021	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2021	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2021	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2021	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2021	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2021	dei	Entity Small Business EntitySmallBusiness	false
CY2021	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2021	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2021	dei	Entity Shell Company EntityShellCompany	false
CY2021Q2	dei	Entity Public Float EntityPublicFloat	1737000000	USD
CY2022Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	30228919	shares
CY2021	dei	Auditor Name AuditorName	DELOITTE & TOUCHE LLP
CY2021	dei	Auditor Location AuditorLocation	San Jose, California
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CY2020	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
CY2019	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
CY2021	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	0	USD
CY2020	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	0	USD
CY2019	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	15768000	USD
CY2021	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	462527000	USD
CY2020	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	446856000	USD
CY2019	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	363003000	USD
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	111159000	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	117670000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	57479000	USD
CY2021	us-gaap	Interest Expense Debt InterestExpenseDebt	54339000	USD
CY2020	us-gaap	Interest Expense Debt InterestExpenseDebt	54255000	USD
CY2019	us-gaap	Interest Expense Debt InterestExpenseDebt	31796000	USD
CY2021	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	-1330000	USD
CY2020	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	374000	USD
CY2019	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	3158000	USD
CY2021	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	3000000	USD
CY2020	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	0	USD
CY2019	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	0	USD
CY2021	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	927000	USD
CY2020	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	948000	USD
CY2019	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	929000	USD
CY2021	us-gaap	Interest Income Money Market Deposits InterestIncomeMoneyMarketDeposits	0	USD
CY2020	us-gaap	Interest Income Money Market Deposits InterestIncomeMoneyMarketDeposits	0	USD
CY2019	us-gaap	Interest Income Money Market Deposits InterestIncomeMoneyMarketDeposits	6536000	USD
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	6770000	USD
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	5906000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	2091000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	68847000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	69895000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	32081000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8369000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8380000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8454000	USD
CY2021	us-gaap	Profit Loss ProfitLoss	60478000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	61515000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	23627000	USD
CY2021	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	USD
CY2020	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	USD
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	224000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	60478000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	61515000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	23403000	USD
CY2021	us-gaap	Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent	68000	USD
CY2020	us-gaap	Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent	247000	USD
CY2019	us-gaap	Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent	43000	USD
CY2021	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	185000	USD
CY2020	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	-310000	USD
CY2019	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	117000	USD
CY2021	us-gaap	Other Comprehensive Income Defined Benefit Plans Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent	-264000	USD
CY2020	us-gaap	Other Comprehensive Income Defined Benefit Plans Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent	324000	USD
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plans Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent	-22000	USD
CY2021	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	-716000	USD
CY2020	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	880000	USD
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	-9000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	61379000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	60325000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	23529000	USD
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.04
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.16
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.82
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.03
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.14
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.82
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	29601284	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	28521900	shares
CY2019	us-gaap	Profit Loss ProfitLoss	23627000	USD
CY2019	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	224000	USD
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	28443052	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	29735533	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	28694986	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	28562546	shares
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	889312000	USD
CY2019	us-gaap	Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent	43000	USD
CY2019	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	117000	USD
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plans Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent	-22000	USD
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	-9000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	3313000	USD
CY2019	sjw	Adjustmentsto Additional Paidin Capital Sharebased Compensation Equity Award Assumedin Acquisition AdjustmentstoAdditionalPaidinCapitalSharebasedCompensationEquityAwardAssumedinAcquisition	6384000	USD
CY2019	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-110000	USD
CY2019	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	1603000	USD
CY2019	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	-10000	USD
CY2019	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.20
CY2019	us-gaap	Dividends Dividends	34134000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	889984000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	61515000	USD
CY2020	us-gaap	Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent	247000	USD
CY2020	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	-310000	USD
CY2020	us-gaap	Other Comprehensive Income Defined Benefit Plans Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent	324000	USD
CY2020	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	880000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	3393000	USD
CY2020	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-1863000	USD
CY2020	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	1830000	USD
CY2020	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.28
CY2020	us-gaap	Dividends Dividends	36509000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	917160000	USD
CY2021	us-gaap	Profit Loss ProfitLoss	60478000	USD
CY2021	us-gaap	Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent	68000	USD
CY2021	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	185000	USD
CY2021	us-gaap	Other Comprehensive Income Defined Benefit Plans Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent	-264000	USD
CY2021	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	-716000	USD
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	4128000	USD
CY2021	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-1066000	USD
CY2021	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	2026000	USD
CY2021	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	91029000	USD
CY2021	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.36
CY2021	us-gaap	Dividends Dividends	40137000	USD
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	1034519000	USD
CY2021	us-gaap	Profit Loss ProfitLoss	60478000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	61515000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	23627000	USD
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	96474000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	91622000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	68489000	USD
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-2851000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-5497000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1249000	USD
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	4246000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	3553000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	3406000	USD
CY2021	sjw	Gain Loss On Disposition Of Property Plant Equipment Excluding Oil And Gas Property And Timber Property And On Sale Of Investment Real Estate GainLossOnDispositionOfPropertyPlantEquipmentExcludingOilAndGasPropertyAndTimberPropertyAndOnSaleOfInvestmentRealEstate	11421000	USD
CY2020	sjw	Gain Loss On Disposition Of Property Plant Equipment Excluding Oil And Gas Property And Timber Property And On Sale Of Investment Real Estate GainLossOnDispositionOfPropertyPlantEquipmentExcludingOilAndGasPropertyAndTimberPropertyAndOnSaleOfInvestmentRealEstate	948000	USD
CY2019	sjw	Gain Loss On Disposition Of Property Plant Equipment Excluding Oil And Gas Property And Timber Property And On Sale Of Investment Real Estate GainLossOnDispositionOfPropertyPlantEquipmentExcludingOilAndGasPropertyAndTimberPropertyAndOnSaleOfInvestmentRealEstate	909000	USD
CY2021	us-gaap	Public Utilities Allowance For Funds Used During Construction Additions PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions	1926000	USD
CY2020	us-gaap	Public Utilities Allowance For Funds Used During Construction Additions PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions	1249000	USD
CY2019	us-gaap	Public Utilities Allowance For Funds Used During Construction Additions PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions	0	USD
CY2021	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	2211000	USD
CY2020	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
CY2019	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
CY2021	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	5931000	USD
CY2020	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	18918000	USD
CY2019	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	3860000	USD
CY2021	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	4843000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-357000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	1946000	USD
CY2021	sjw	Increase Decreasein Accrued Groundwater Extraction Charges Purchased Waterand Power IncreaseDecreaseinAccruedGroundwaterExtractionChargesPurchasedWaterandPower	-1984000	USD
CY2020	sjw	Increase Decreasein Accrued Groundwater Extraction Charges Purchased Waterand Power IncreaseDecreaseinAccruedGroundwaterExtractionChargesPurchasedWaterandPower	1973000	USD
CY2019	sjw	Increase Decreasein Accrued Groundwater Extraction Charges Purchased Waterand Power IncreaseDecreaseinAccruedGroundwaterExtractionChargesPurchasedWaterandPower	2853000	USD
CY2021	us-gaap	Increase Decrease In Accrued Taxes Payable IncreaseDecreaseInAccruedTaxesPayable	-6416000	USD
CY2020	us-gaap	Increase Decrease In Accrued Taxes Payable IncreaseDecreaseInAccruedTaxesPayable	-3557000	USD
CY2019	us-gaap	Increase Decrease In Accrued Taxes Payable IncreaseDecreaseInAccruedTaxesPayable	-6044000	USD
CY2021	us-gaap	Increase Decrease In Pension And Postretirement Obligations IncreaseDecreaseInPensionAndPostretirementObligations	-4312000	USD
CY2020	us-gaap	Increase Decrease In Pension And Postretirement Obligations IncreaseDecreaseInPensionAndPostretirementObligations	-2965000	USD
CY2019	us-gaap	Increase Decrease In Pension And Postretirement Obligations IncreaseDecreaseInPensionAndPostretirementObligations	-4000000	USD
CY2021	sjw	Increase Decrease To Regulatory Asset And Liabilities Excluding Income Tax Temporary Differences Net And Postretirement Benefits IncreaseDecreaseToRegulatoryAssetAndLiabilitiesExcludingIncomeTaxTemporaryDifferencesNetAndPostretirementBenefits	14629000	USD
CY2020	sjw	Increase Decrease To Regulatory Asset And Liabilities Excluding Income Tax Temporary Differences Net And Postretirement Benefits IncreaseDecreaseToRegulatoryAssetAndLiabilitiesExcludingIncomeTaxTemporaryDifferencesNetAndPostretirementBenefits	14459000	USD
CY2019	sjw	Increase Decrease To Regulatory Asset And Liabilities Excluding Income Tax Temporary Differences Net And Postretirement Benefits IncreaseDecreaseToRegulatoryAssetAndLiabilitiesExcludingIncomeTaxTemporaryDifferencesNetAndPostretirementBenefits	-30838000	USD
CY2021	sjw	Increase Decrease In Up Front Service Concession Payment IncreaseDecreaseInUpFrontServiceConcessionPayment	0	USD
CY2020	sjw	Increase Decrease In Up Front Service Concession Payment IncreaseDecreaseInUpFrontServiceConcessionPayment	5000000	USD
CY2019	sjw	Increase Decrease In Up Front Service Concession Payment IncreaseDecreaseInUpFrontServiceConcessionPayment	0	USD
CY2021	sjw	Increase Decrease In Other Noncurrent Assets And Liabilities IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilities	-13381000	USD
CY2020	sjw	Increase Decrease In Other Noncurrent Assets And Liabilities IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilities	-751000	USD
CY2019	sjw	Increase Decrease In Other Noncurrent Assets And Liabilities IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilities	-7439000	USD
CY2021	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	2123000	USD
CY2020	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	2413000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-7469000	USD
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	130040000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	104051000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	130005000	USD
CY2021	sjw	Payments To Acquire Water Systems Using Company Funds PaymentsToAcquireWaterSystemsUsingCompanyFunds	233933000	USD
CY2020	sjw	Payments To Acquire Water Systems Using Company Funds PaymentsToAcquireWaterSystemsUsingCompanyFunds	195323000	USD
CY2019	sjw	Payments To Acquire Water Systems Using Company Funds PaymentsToAcquireWaterSystemsUsingCompanyFunds	164325000	USD
CY2021	sjw	Payments To Acquire Water Systems Using Contributions In Aid Of Construction PaymentsToAcquireWaterSystemsUsingContributionsInAidOfConstruction	17096000	USD
CY2020	sjw	Payments To Acquire Water Systems Using Contributions In Aid Of Construction PaymentsToAcquireWaterSystemsUsingContributionsInAidOfConstruction	17096000	USD
CY2019	sjw	Payments To Acquire Water Systems Using Contributions In Aid Of Construction PaymentsToAcquireWaterSystemsUsingContributionsInAidOfConstruction	13563000	USD
CY2021	us-gaap	Payments To Acquire Real Estate PaymentsToAcquireRealEstate	826000	USD
CY2020	us-gaap	Payments To Acquire Real Estate PaymentsToAcquireRealEstate	435000	USD
CY2019	us-gaap	Payments To Acquire Real Estate PaymentsToAcquireRealEstate	137000	USD
CY2021	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	23587000	USD
CY2020	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	0	USD
CY2019	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	835465000	USD
CY2021	us-gaap	Payments For Proceeds From Removal Costs PaymentsForProceedsFromRemovalCosts	2781000	USD
CY2020	us-gaap	Payments For Proceeds From Removal Costs PaymentsForProceedsFromRemovalCosts	2556000	USD
CY2019	us-gaap	Payments For Proceeds From Removal Costs PaymentsForProceedsFromRemovalCosts	5026000	USD
CY2021	sjw	Proceeds From Sale Of Property Held For Sale And From Sale Of Real Estate Investments ProceedsFromSaleOfPropertyHeldForSaleAndFromSaleOfRealEstateInvestments	18228000	USD
CY2020	sjw	Proceeds From Sale Of Property Held For Sale And From Sale Of Real Estate Investments ProceedsFromSaleOfPropertyHeldForSaleAndFromSaleOfRealEstateInvestments	1151000	USD
CY2019	sjw	Proceeds From Sale Of Property Held For Sale And From Sale Of Real Estate Investments ProceedsFromSaleOfPropertyHeldForSaleAndFromSaleOfRealEstateInvestments	745000	USD
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-259995000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-214259000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1017771000	USD
CY2021	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	96625000	USD
CY2020	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	276174000	USD
CY2019	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	105349000	USD
CY2021	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	208722000	USD
CY2020	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	218289000	USD
CY2019	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	192055000	USD
CY2021	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	247000000	USD
CY2020	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	85000000	USD
CY2019	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	590000000	USD
CY2021	sjw	Proceeds From Issuance Of Long Term Debt Held As Restricted Cash ProceedsFromIssuanceOfLongTermDebtHeldAsRestrictedCash	0	USD
CY2020	sjw	Proceeds From Issuance Of Long Term Debt Held As Restricted Cash ProceedsFromIssuanceOfLongTermDebtHeldAsRestrictedCash	4000000	USD
CY2019	sjw	Proceeds From Issuance Of Long Term Debt Held As Restricted Cash ProceedsFromIssuanceOfLongTermDebtHeldAsRestrictedCash	5000000	USD
CY2021	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	76113000	USD
CY2020	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	28931000	USD
CY2019	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1400000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	101533000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	484988000	USD
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	2850000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-8675000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-402778000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	9269000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	17944000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	420722000	USD
CY2021	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	40137000	USD
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	36509000	USD
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	34134000	USD
CY2021	sjw	Receipts Of Advances And Contributions In Aid Of Construction ReceiptsOfAdvancesAndContributionsInAidOfConstruction	26438000	USD
CY2020	sjw	Receipts Of Advances And Contributions In Aid Of Construction ReceiptsOfAdvancesAndContributionsInAidOfConstruction	23874000	USD
CY2019	sjw	Receipts Of Advances And Contributions In Aid Of Construction ReceiptsOfAdvancesAndContributionsInAidOfConstruction	18904000	USD
CY2021	us-gaap	Repayments Of Advances For Construction RepaymentsOfAdvancesForConstruction	2852000	USD
CY2020	us-gaap	Repayments Of Advances For Construction RepaymentsOfAdvancesForConstruction	2767000	USD
CY2019	us-gaap	Repayments Of Advances For Construction RepaymentsOfAdvancesForConstruction	2911000	USD
CY2021	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	91028000	USD
CY2020	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2019	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	-10000	USD
CY2021	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-462000	USD
CY2020	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-1019000	USD
CY2019	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-3755000	USD
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	132805000	USD
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	12119000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	9269000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	17944000	USD
CY2021Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	1211000	USD
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	4000000	USD
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	5000000	USD
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	10908000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	5269000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	12944000	USD
CY2021	us-gaap	Interest Paid Net InterestPaidNet	58175000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	59955000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	32138000	USD
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	8466000	USD
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	10380000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	16448000	USD
CY2021	sjw	Noncash Change In Accrued Payables NoncashChangeInAccruedPayables	-5436000	USD
CY2020	sjw	Noncash Change In Accrued Payables NoncashChangeInAccruedPayables	1448000	USD
CY2019	sjw	Noncash Change In Accrued Payables NoncashChangeInAccruedPayables	-516000	USD
CY2021	sjw	Utility Property Installed By Developer UtilityPropertyInstalledByDeveloper	2659000	USD
CY2020	sjw	Utility Property Installed By Developer UtilityPropertyInstalledByDeveloper	9779000	USD
CY2019	sjw	Utility Property Installed By Developer UtilityPropertyInstalledByDeveloper	3077000	USD
CY2020Q4	us-gaap	Public Utilities Property Plant And Equipment Equipment PublicUtilitiesPropertyPlantAndEquipmentEquipment	567904000	USD
CY2020Q4	us-gaap	Public Utilities Property Plant And Equipment Transmission And Distribution PublicUtilitiesPropertyPlantAndEquipmentTransmissionAndDistribution	1699953000	USD
CY2021Q4	us-gaap	Public Utilities Property Plant And Equipment Other Property Plant And Equipment PublicUtilitiesPropertyPlantAndEquipmentOtherPropertyPlantAndEquipment	981615000	USD
CY2021	sjw	Variable Interest Entities Number Of Entities VariableInterestEntitiesNumberOfEntities	2	entity
CY2021	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-top:8pt;text-indent:31.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Use of Estimates</span></div><div style="margin-top:6pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of the consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.</span></div>
CY2021Q4	us-gaap	Public Utilities Property Plant And Equipment Equipment PublicUtilitiesPropertyPlantAndEquipmentEquipment	598285000	USD
CY2021Q4	us-gaap	Public Utilities Property Plant And Equipment Transmission And Distribution PublicUtilitiesPropertyPlantAndEquipmentTransmissionAndDistribution	1802008000	USD
CY2020Q4	us-gaap	Public Utilities Property Plant And Equipment Other Property Plant And Equipment PublicUtilitiesPropertyPlantAndEquipmentOtherPropertyPlantAndEquipment	930203000	USD
CY2021Q4	sjw	Public Utilities Property Plant And Equipment Depreciable Plant And Equipment PublicUtilitiesPropertyPlantAndEquipmentDepreciablePlantAndEquipment	3381908000	USD
CY2020Q4	sjw	Public Utilities Property Plant And Equipment Depreciable Plant And Equipment PublicUtilitiesPropertyPlantAndEquipmentDepreciablePlantAndEquipment	3198060000	USD
CY2021	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.032
CY2020	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.032
CY2019	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.038
CY2021	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	20579000	USD
CY2020	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	24571000	USD
CY2021	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	4422000	USD
CY2020	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	4133000	USD
CY2019	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	4323000	USD
CY2021	sjw	Equity Funds Capitalized EquityFundsCapitalized	1926000	USD
CY2020	sjw	Equity Funds Capitalized EquityFundsCapitalized	1249000	USD
CY2019	sjw	Equity Funds Capitalized EquityFundsCapitalized	198000	USD
CY2021Q4	us-gaap	Land Land	12615000	USD
CY2020Q4	us-gaap	Land Land	14168000	USD
CY2021Q4	us-gaap	Investment Building And Building Improvements InvestmentBuildingAndBuildingImprovements	45017000	USD
CY2020Q4	us-gaap	Investment Building And Building Improvements InvestmentBuildingAndBuildingImprovements	43961000	USD
CY2021Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	57632000	USD
CY2020Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	58129000	USD
CY2017Q4	sjw	Sales Agreement Holdback Amount SalesAgreementHoldbackAmount	3000000	USD
CY2021Q2	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	3000000	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received Next Twelve Months LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths	4251000	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received Two Years LessorOperatingLeasePaymentsToBeReceivedTwoYears	4230000	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received Three Years LessorOperatingLeasePaymentsToBeReceivedThreeYears	2990000	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received Four Years LessorOperatingLeasePaymentsToBeReceivedFourYears	2912000	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received Five Years LessorOperatingLeasePaymentsToBeReceivedFiveYears	3075000	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received Thereafter LessorOperatingLeasePaymentsToBeReceivedThereafter	4753000	USD
CY2021	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	2211000	USD
CY2019	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
CY2020	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
CY2019	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2021	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2021Q4	us-gaap	Life Insurance Corporate Or Bank Owned Amount LifeInsuranceCorporateOrBankOwnedAmount	8026000	USD
CY2020Q4	us-gaap	Life Insurance Corporate Or Bank Owned Amount LifeInsuranceCorporateOrBankOwnedAmount	8026000	USD
CY2021Q4	us-gaap	Cash Surrender Value Of Life Insurance CashSurrenderValueOfLifeInsurance	4191000	USD
CY2020Q4	us-gaap	Cash Surrender Value Of Life Insurance CashSurrenderValueOfLifeInsurance	4311000	USD
CY2021Q4	sjw	Advances For Construction Estimated Refunds Next Twelve Months AdvancesForConstructionEstimatedRefundsNextTwelveMonths	3609000	USD
CY2021Q4	sjw	Advances For Construction Estimated Refunds Year Two AdvancesForConstructionEstimatedRefundsYearTwo	3548000	USD
CY2021Q4	sjw	Advances For Construction Estimated Refunds Year Three AdvancesForConstructionEstimatedRefundsYearThree	3282000	USD
CY2021Q4	sjw	Advances For Construction Estimated Refunds Year Four AdvancesForConstructionEstimatedRefundsYearFour	3030000	USD
CY2021Q4	sjw	Advances For Construction Estimated Refunds Year Five AdvancesForConstructionEstimatedRefundsYearFive	2809000	USD
CY2021Q4	sjw	Advances For Construction Estimated Refunds After Year Five AdvancesForConstructionEstimatedRefundsAfterYearFive	49582000	USD
CY2021Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	130693000	USD
CY2021Q4	sjw	Customer Advancesfor Construction Non Refundable CustomerAdvancesforConstructionNonRefundable	36388000	USD
CY2021Q4	sjw	Customer Advancesfor Construction Refundedon Service Connections CustomerAdvancesforConstructionRefundedonServiceConnections	28445000	USD
CY2021	sjw	Contract With Customer Refund Liability Refund Period ContractWithCustomerRefundLiabilityRefundPeriod	P40Y
CY2021Q4	sjw	Contract With Customer Refund Liability Fair Value Disclosure ContractWithCustomerRefundLiabilityFairValueDisclosure	51067000	USD
CY2020Q4	sjw	Contract With Customer Refund Liability Fair Value Disclosure ContractWithCustomerRefundLiabilityFairValueDisclosure	50391000	USD
CY2021	sjw	Advances For Construction Deferred Taxes Amortization Period AdvancesForConstructionDeferredTaxesAmortizationPeriod	P40Y
CY2021Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	4511000	USD
CY2020Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	4619000	USD
CY2021Q4	sjw	Asset Retirement Obligation Discount Rate AssetRetirementObligationDiscountRate	0.06
CY2020Q4	sjw	Asset Retirement Obligation Discount Rate AssetRetirementObligationDiscountRate	0.06
CY2021Q4	us-gaap	Asset Retirement Obligation Legally Restricted Assets Fair Value AssetRetirementObligationLegallyRestrictedAssetsFairValue	925000	USD
CY2020Q4	us-gaap	Asset Retirement Obligation Legally Restricted Assets Fair Value AssetRetirementObligationLegallyRestrictedAssetsFairValue	939000	USD
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	559568000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	549270000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	447720000	USD
CY2021	sjw	Alternative Revenue Programs Net AlternativeRevenueProgramsNet	5304000	USD
CY2020	sjw	Alternative Revenue Programs Net AlternativeRevenueProgramsNet	-493000	USD
CY2019	sjw	Alternative Revenue Programs Net AlternativeRevenueProgramsNet	-18232000	USD
CY2021	sjw	Regulatory Balancingand Memorandum Accounts Revenue Net RegulatoryBalancingandMemorandumAccountsRevenueNet	5138000	USD
CY2020	sjw	Regulatory Balancingand Memorandum Accounts Revenue Net RegulatoryBalancingandMemorandumAccountsRevenueNet	11856000	USD
CY2019	sjw	Regulatory Balancingand Memorandum Accounts Revenue Net RegulatoryBalancingandMemorandumAccountsRevenueNet	-30092000	USD
CY2021	sjw	Regulatory Mechanisms Other Net RegulatoryMechanismsOtherNet	-1703000	USD
CY2020	sjw	Regulatory Mechanisms Other Net RegulatoryMechanismsOtherNet	-1639000	USD
CY2019	sjw	Regulatory Mechanisms Other Net RegulatoryMechanismsOtherNet	15689000	USD
CY2021	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	5379000	USD
CY2021Q4	us-gaap	Regulatory Assets RegulatoryAssets	154621000	USD
CY2020	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	5532000	USD
CY2019	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	5397000	USD
CY2021	us-gaap	Revenues Revenues	573686000	USD
CY2020	us-gaap	Revenues Revenues	564526000	USD
CY2019	us-gaap	Revenues Revenues	420482000	USD
CY2021	sjw	Regulated Operating Revenue Water Surcharge RegulatedOperatingRevenueWaterSurcharge	5691000	USD
CY2020	sjw	Regulated Operating Revenue Water Surcharge RegulatedOperatingRevenueWaterSurcharge	4911000	USD
CY2019	sjw	Regulated Operating Revenue Water Surcharge RegulatedOperatingRevenueWaterSurcharge	4955000	USD
CY2021Q4	us-gaap	Remaining Amounts Of Regulatory Assets For Which No Return On Investment During Recovery Period Is Provided RemainingAmountsOfRegulatoryAssetsForWhichNoReturnOnInvestmentDuringRecoveryPeriodIsProvided	84887000	USD
CY2020Q4	us-gaap	Remaining Amounts Of Regulatory Assets For Which No Return On Investment During Recovery Period Is Provided RemainingAmountsOfRegulatoryAssetsForWhichNoReturnOnInvestmentDuringRecoveryPeriodIsProvided	119236000	USD
CY2020Q4	sjw	Balancing And Memorandum Account Net BalancingAndMemorandumAccountNet	25463000	USD
CY2020Q4	us-gaap	Regulatory Assets RegulatoryAssets	158230000	USD
CY2021Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	2629000	USD
CY2020Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	1748000	USD
CY2021Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	151992000	USD
CY2020Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	156482000	USD
CY2021Q4	sjw	Regulatory Balancingand Memorandum Accounts Review Authorized Revenue Threshold Percentage RegulatoryBalancingandMemorandumAccountsReviewAuthorizedRevenueThresholdPercentage	0.02
CY2021Q4	sjw	Regulatory Balancingand Memorandum Accounts Net Under Collected RegulatoryBalancingandMemorandumAccountsNetUnderCollected	2312000	USD
CY2020Q4	sjw	Balancingand Memorandum Revenue Account Net BalancingandMemorandumRevenueAccountNet	10043000	USD
CY2021	sjw	Balancingand Memorandum Revenue Account Increase Decrease BalancingandMemorandumRevenueAccountIncreaseDecrease	8779000	USD
CY2021	sjw	Balancingand Memorandum Revenue Account Refunds Collections BalancingandMemorandumRevenueAccountRefundsCollections	-371000	USD
CY2021Q4	sjw	Balancingand Memorandum Revenue Account Net BalancingandMemorandumRevenueAccountNet	18451000	USD
CY2020Q4	sjw	Balancingand Memorandum Cost Recovery Account Net BalancingandMemorandumCostRecoveryAccountNet	15420000	USD
CY2021	sjw	Balancingand Memorandum Cost Recovery Account Increase Decrease BalancingandMemorandumCostRecoveryAccountIncreaseDecrease	4865000	USD
CY2021	sjw	Balancingand Memorandum Cost Recovery Account Refunds Collections BalancingandMemorandumCostRecoveryAccountRefundsCollections	-402000	USD
CY2021Q4	sjw	Balancingand Memorandum Cost Recovery Account Net BalancingandMemorandumCostRecoveryAccountNet	19883000	USD
CY2021	sjw	Balancingand Memorandum Account Increase Decrease BalancingandMemorandumAccountIncreaseDecrease	13644000	USD
CY2021	sjw	Balancingand Memorandum Account Refunds Collections BalancingandMemorandumAccountRefundsCollections	-773000	USD
CY2021Q4	sjw	Balancing And Memorandum Account Net BalancingAndMemorandumAccountNet	38334000	USD
CY2019Q4	sjw	Balancingand Memorandum Revenue Account Net BalancingandMemorandumRevenueAccountNet	-1940000	USD
CY2020	sjw	Balancingand Memorandum Revenue Account Increase Decrease BalancingandMemorandumRevenueAccountIncreaseDecrease	2516000	USD
CY2020	sjw	Balancingand Memorandum Revenue Account Refunds Collections BalancingandMemorandumRevenueAccountRefundsCollections	9467000	USD
CY2020Q4	sjw	Balancingand Memorandum Revenue Account Net BalancingandMemorandumRevenueAccountNet	10043000	USD
CY2019Q4	sjw	Balancingand Memorandum Cost Recovery Account Net BalancingandMemorandumCostRecoveryAccountNet	7223000	USD
CY2020	sjw	Balancingand Memorandum Cost Recovery Account Increase Decrease BalancingandMemorandumCostRecoveryAccountIncreaseDecrease	8324000	USD
CY2020	sjw	Balancingand Memorandum Cost Recovery Account Refunds Collections BalancingandMemorandumCostRecoveryAccountRefundsCollections	-127000	USD
CY2020Q4	sjw	Balancingand Memorandum Cost Recovery Account Net BalancingandMemorandumCostRecoveryAccountNet	15420000	USD
CY2019Q4	sjw	Balancing And Memorandum Account Net BalancingAndMemorandumAccountNet	5283000	USD
CY2020	sjw	Balancingand Memorandum Account Increase Decrease BalancingandMemorandumAccountIncreaseDecrease	10840000	USD
CY2020	sjw	Balancingand Memorandum Account Refunds Collections BalancingandMemorandumAccountRefundsCollections	9340000	USD
CY2020Q4	sjw	Balancing And Memorandum Account Net BalancingAndMemorandumAccountNet	25463000	USD
CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	70000000	shares
CY2021Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	70000000	shares
CY2020Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2021Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2021Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	30181348	shares
CY2021Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	30181348	shares
CY2020Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	28556605	shares
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	28556605	shares
CY2020Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	1000000	shares
CY2021Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	1000000	shares
CY2021Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2020Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2020Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2021Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2021Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2020Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2021Q1	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2021Q1	us-gaap	Sale Of Stock Price Per Share SaleOfStockPricePerShare	59.00
CY2021Q4	us-gaap	Long Term Debt LongTermDebt	1522955000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	1352320000	USD
CY2021Q4	us-gaap	Debt Instrument Unamortized Premium DebtInstrumentUnamortizedPremium	19937000	USD
CY2020Q4	us-gaap	Debt Instrument Unamortized Premium DebtInstrumentUnamortizedPremium	22479000	USD
CY2021Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	10851000	USD
CY2020Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	10978000	USD
CY2021Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	39106000	USD
CY2020Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	76241000	USD
CY2021Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	1492935000	USD
CY2020Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	1287580000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	39179000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	4360000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	48983000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	3648000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	23303000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	1403482000	USD
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	8587000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	11349000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	7577000	USD
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	2633000	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	2528000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	2126000	USD
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-3811000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-8073000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-1929000	USD
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	960000	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	2576000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	680000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8369000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8380000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8454000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	68847000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	69895000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	32081000	USD
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	14458000	USD
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	14678000	USD
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	6737000	USD
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	4572000	USD
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	4142000	USD
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	2251000	USD
CY2021	sjw	Effective Income Tax Rate Reconciliation Uncertain Tax Positions EffectiveIncomeTaxRateReconciliationUncertainTaxPositions	-1678000	USD
CY2020	sjw	Effective Income Tax Rate Reconciliation Uncertain Tax Positions EffectiveIncomeTaxRateReconciliationUncertainTaxPositions	-1351000	USD
CY2019	sjw	Effective Income Tax Rate Reconciliation Uncertain Tax Positions EffectiveIncomeTaxRateReconciliationUncertainTaxPositions	-323000	USD
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation IncomeTaxReconciliationNondeductibleExpenseDepreciation	-8573000	USD
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation IncomeTaxReconciliationNondeductibleExpenseDepreciation	-9215000	USD
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation IncomeTaxReconciliationNondeductibleExpenseDepreciation	-2054000	USD
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CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	3834000	USD
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CY2021	us-gaap	Loss Contingency Disclosures LossContingencyDisclosures	ContingenciesSJW Group and its subsidiaries are 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.
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$SJW
SJW GROUP Stock $sjw

2021 Q4 Form 10-K Financial Statement

#000076682922000060 Filed on February 28, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SJW SJW GROUP Stock $sjw

2021 Q4 Form 10-K Financial Statement

#000076682922000060 Filed on February 28, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SJW
SJW GROUP Stock $sjw