$CWT
CALIFORNIA WATER SERVICE GROUP Stock $cwt

$cwt Overview Financials Valuation SEC Filings Company Website

2020 Q1 Form 10-Q Financial Statement

#000103520120000005 Filed on April 30, 2020

Income Statement

Concept	2020 Q1	2019 Q1
Revenue	$134.8M	$117.4M
YoY Change	14.84%	-12.55%
Cost Of Revenue	$54.00M	$45.60M
YoY Change	18.42%	-4.2%
Gross Profit	$71.60M	$80.50M
YoY Change	-11.06%	-7.47%
Gross Profit Margin	53.1%	68.56%
Selling, General & Admin	$29.70M	$29.10M
YoY Change	2.06%	10.65%
% of Gross Profit	41.48%	36.15%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$25.09M	$22.89M
YoY Change	9.61%	7.95%
% of Gross Profit	35.05%	28.44%
Operating Expenses	$82.40M	$83.00M
YoY Change	-0.72%	8.07%
Operating Profit	-$6.923M	$476.0K
YoY Change	-1554.41%	-95.16%
Interest Expense	-$9.900M	-$10.20M
YoY Change	-2.94%	17.24%
% of Operating Profit		-2142.86%
Other Income/Expense, Net	-$3.530M	$2.128M
YoY Change	-265.88%	-212.3%
Pretax Income	-$25.20M	-$9.800M
YoY Change	157.14%	716.67%
Income Tax	-$4.900M	-$2.200M
% Of Pretax Income
Net Earnings	-$20.31M	-$7.640M
YoY Change	165.8%	902.62%
Net Earnings / Revenue	-15.06%	-6.51%
Basic Earnings Per Share	-$0.42	-$0.16
Diluted Earnings Per Share	-$0.42	-$0.16
COMMON SHARES
Basic Shares Outstanding	48.58M shares	48.09M shares
Diluted Shares Outstanding	48.58M shares	48.09M shares

Balance Sheet

Concept	2020 Q1	2019 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments	$140.4M	$60.20M
YoY Change	133.22%	73.49%
Cash & Equivalents	$140.4M	$60.23M
Short-Term Investments
Other Short-Term Assets	$26.40M	$23.67M
YoY Change	11.51%	21.69%
Inventory	$8.100M	$6.400M
Prepaid Expenses
Receivables	$32.73M	$27.55M
Other Receivables	$32.70M	$36.60M
Total Short-Term Assets	$270.1M	$192.7M
YoY Change	40.14%	16.25%
LONG-TERM ASSETS
Property, Plant & Equipment	$2.447B	$2.274B
YoY Change	7.62%	9.16%
Goodwill	$2.615M	$2.615M
YoY Change	0.0%	0.0%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$78.36M	$78.84M
YoY Change	-0.61%	31.34%
Total Long-Term Assets	$2.971B	$2.708B
YoY Change	9.71%	6.16%
TOTAL ASSETS
Total Short-Term Assets	$270.1M	$192.7M
Total Long-Term Assets	$2.971B	$2.708B
Total Assets	$3.241B	$2.901B
YoY Change	11.73%	6.78%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$99.02M	$83.28M
YoY Change	18.9%	13.22%
Accrued Expenses	$53.70M	$50.70M
YoY Change	5.92%	-5.23%
Deferred Revenue
YoY Change
Short-Term Debt	$335.1M	$125.1M
YoY Change	167.87%	-54.53%
Long-Term Debt Due	$21.86M	$105.0M
YoY Change	-79.18%	1672.62%
Total Short-Term Liabilities	$513.1M	$384.0M
YoY Change	33.61%	-17.29%
LONG-TERM LIABILITIES
Long-Term Debt	$786.5M	$710.6M
YoY Change	10.68%	37.8%
Other Long-Term Liabilities	$967.7M	$880.5M
YoY Change	9.9%	2.04%
Total Long-Term Liabilities	$786.5M	$710.6M
YoY Change	10.68%	37.8%
TOTAL LIABILITIES
Total Short-Term Liabilities	$513.1M	$384.0M
Total Long-Term Liabilities	$786.5M	$710.6M
Total Liabilities	$1.300B	$1.095B
YoY Change	18.72%	11.7%
SHAREHOLDERS EQUITY
Retained Earnings	$386.5M	$374.9M
YoY Change	3.1%	6.29%
Common Stock	$368.6M	$339.2M
YoY Change	8.67%	0.92%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$755.1M	$714.1M
YoY Change
Total Liabilities & Shareholders Equity	$3.241B	$2.901B
YoY Change	11.73%	6.78%

Cashflow Statement

Concept	2020 Q1	2019 Q1
OPERATING ACTIVITIES
Net Income	-$20.31M	-$7.640M
YoY Change	165.8%	902.62%
Depreciation, Depletion And Amortization	$25.09M	$22.89M
YoY Change	9.61%	7.95%
Cash From Operating Activities	$4.067M	$20.14M
YoY Change	-79.81%	-28.71%
INVESTING ACTIVITIES
Capital Expenditures	-$65.30M	-$59.90M
YoY Change	9.02%	-15.28%
Acquisitions
YoY Change
Other Investing Activities
YoY Change
Cash From Investing Activities	-$65.27M	-$59.88M
YoY Change	9.0%	-15.24%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	-$5.138M	$1.620M
YoY Change	-417.16%	30.75%
Debt Paid & Issued, Net	$197.0K	$226.0K
YoY Change	-12.83%	-97.79%
Cash From Financing Activities	$158.9M	$52.92M
YoY Change	200.29%	-400.3%
NET CHANGE
Cash From Operating Activities	$4.067M	$20.14M
Cash From Investing Activities	-$65.27M	-$59.88M
Cash From Financing Activities	$158.9M	$52.92M
Net Change In Cash	$97.70M	$13.18M
YoY Change	641.54%	-121.95%
FREE CASH FLOW
Cash From Operating Activities	$4.067M	$20.14M
Capital Expenditures	-$65.30M	-$59.90M
Free Cash Flow	$69.37M	$80.04M
YoY Change	-13.34%	-19.11%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2020Q1	dei	Amendment Flag AmendmentFlag	false
CY2020Q1	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2020Q1	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q1
CY2020Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2020
CY2020Q1	dei	Entity Central Index Key EntityCentralIndexKey	0001035201
CY2019Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.1975
CY2020Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.2125
CY2019Q1	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2020Q1	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2019Q1	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	68000000	shares
CY2020Q1	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	68000000	shares
CY2019Q1	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	48532000	shares
CY2020Q1	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	48714000	shares
CY2020Q1	dei	Document Type DocumentType	10-Q
CY2020Q1	dei	Document Quarterly Report DocumentQuarterlyReport	true
CY2020Q1	dei	Document Period End Date DocumentPeriodEndDate	2020-03-31
CY2020Q1	dei	Document Transition Report DocumentTransitionReport	false
CY2020Q1	dei	Entity File Number EntityFileNumber	1-13883
CY2020Q1	dei	Entity Registrant Name EntityRegistrantName	CALIFORNIA WATER SERVICE GROUP
CY2020Q1	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2020Q1	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	77-0448994
CY2020Q1	dei	Entity Address Address Line1 EntityAddressAddressLine1	1720 North First Street
CY2019Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	32058000	USD
CY2020Q1	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	24970000	USD
CY2020Q1	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2020Q1	dei	Entity Small Business EntitySmallBusiness	false
CY2020Q1	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2020Q1	dei	Entity Shell Company EntityShellCompany	false
CY2020Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	48714000	shares
CY2020Q1	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	3616418000	USD
CY2019Q4	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	3550485000	USD
CY2020Q1	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	1169447000	USD
CY2019Q4	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	1144115000	USD
CY2020Q1	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	2446971000	USD
CY2019Q4	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	2406370000	USD
CY2020Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	140406000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	42653000	USD
CY2020Q1	dei	Entity Address City Or Town EntityAddressCityOrTown	San Jose
CY2020Q1	dei	Entity Address State Or Province EntityAddressStateOrProvince	CA
CY2020Q1	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	95112
CY2020Q1	dei	City Area Code CityAreaCode	408
CY2020Q1	dei	Local Phone Number LocalPhoneNumber	367-8200
CY2020Q1	dei	Security12b Title Security12bTitle	Common Stock, $0.01 par value per share
CY2020Q1	dei	Trading Symbol TradingSymbol	CWT
CY2020Q1	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	32729000	USD
CY2020Q1	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2020Q1	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2020Q1	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2019Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	108463000	USD
CY2019Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	38225000	USD
CY2020Q1	us-gaap	Nontrade Receivables Current NontradeReceivablesCurrent	14428000	USD
CY2019Q4	us-gaap	Nontrade Receivables Current NontradeReceivablesCurrent	14187000	USD
CY2020Q1	us-gaap	Receivables Long Term Contracts Or Programs ReceivablesLongTermContractsOrPrograms	31149000	USD
CY2019Q4	us-gaap	Receivables Long Term Contracts Or Programs ReceivablesLongTermContractsOrPrograms	34879000	USD
CY2020Q1	us-gaap	Public Utilities Inventory PublicUtilitiesInventory	8135000	USD
CY2019Q4	us-gaap	Public Utilities Inventory PublicUtilitiesInventory	7745000	USD
CY2020Q1	cwt	Taxes Prepaid Expenses And Other Assets Current TaxesPrepaidExpensesAndOtherAssetsCurrent	18265000	USD
CY2019Q4	cwt	Taxes Prepaid Expenses And Other Assets Current TaxesPrepaidExpensesAndOtherAssetsCurrent	14965000	USD
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CY2019Q4	us-gaap	Assets Current AssetsCurrent	184712000	USD
CY2020Q1	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	442819000	USD
CY2019Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	433322000	USD
CY2020Q1	us-gaap	Goodwill Goodwill	2615000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	2615000	USD
CY2020Q1	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	78358000	USD
CY2019Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	84289000	USD
CY2020Q1	cwt	Total Other Assets TotalOtherAssets	523792000	USD
CY2019Q4	cwt	Total Other Assets TotalOtherAssets	520226000	USD
CY2020Q1	us-gaap	Assets Assets	3240845000	USD
CY2019Q4	us-gaap	Assets Assets	3111308000	USD
CY2020Q1	us-gaap	Common Stock Value CommonStockValue	487000	USD
CY2019Q4	us-gaap	Common Stock Value CommonStockValue	485000	USD
CY2020Q1	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	368129000	USD
CY2019Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	362275000	USD
CY2020Q1	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	386524000	USD
CY2019Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	417146000	USD
CY2020Q1	us-gaap	Stockholders Equity StockholdersEquity	755140000	USD
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CY2020Q1	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	786467000	USD
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	786754000	USD
CY2020Q1	us-gaap	Capitalization Longterm Debt And Equity CapitalizationLongtermDebtAndEquity	1541607000	USD
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CY2020Q1	us-gaap	Long Term Debt Current LongTermDebtCurrent	21864000	USD
CY2019Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	21868000	USD
CY2020Q1	us-gaap	Short Term Borrowings ShortTermBorrowings	335100000	USD
CY2019Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	175100000	USD
CY2020Q1	us-gaap	Accounts Payable Current AccountsPayableCurrent	99019000	USD
CY2020Q1	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	3474000	USD
CY2019Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	4462000	USD
CY2020Q1	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	3827000	USD
CY2020Q1	us-gaap	Interest Payable Current InterestPayableCurrent	14545000	USD
CY2020Q1	us-gaap	Interest Paid Net InterestPaidNet	909000	USD
CY2019Q1	us-gaap	Interest Paid Net InterestPaidNet	3352000	USD
CY2020Q1	cwt	Utility Plant Contribution By Developers UtilityPlantContributionByDevelopers	8007000	USD
CY2019Q1	cwt	Utility Plant Contribution By Developers UtilityPlantContributionByDevelopers	4111000	USD
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CY2019Q1	us-gaap	Public Utilities Allowance For Funds Used During Construction Additions PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions	1533000	USD
CY2020Q1	cwt	Utilities Nonregulated Expense Income Tax Expense Benefit UtilitiesNonregulatedExpenseIncomeTaxExpenseBenefit	-913000	USD
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CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	43298000	USD
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CY2019Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	60890000	USD
CY2020Q1	us-gaap	Noncash Or Part Noncash Acquisition Payables Assumed1 NoncashOrPartNoncashAcquisitionPayablesAssumed1	38018000	USD
CY2019Q1	us-gaap	Noncash Or Part Noncash Acquisition Payables Assumed1 NoncashOrPartNoncashAcquisitionPayablesAssumed1	29737000	USD
CY2019Q4	us-gaap	Interest Payable Current InterestPayableCurrent	5810000	USD
CY2020Q1	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	39125000	USD
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CY2019Q4	us-gaap	Liabilities Current LiabilitiesCurrent	358721000	USD
CY2020Q1	us-gaap	Accumulated Deferred Investment Tax Credit AccumulatedDeferredInvestmentTaxCredit	1575000	USD
CY2019Q4	us-gaap	Accumulated Deferred Investment Tax Credit AccumulatedDeferredInvestmentTaxCredit	1575000	USD
CY2020Q1	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	218451000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	222590000	USD
CY2020Q1	us-gaap	Other Postretirement Defined Benefit Plan Liabilities Noncurrent OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent	260337000	USD
CY2019Q4	us-gaap	Other Postretirement Defined Benefit Plan Liabilities Noncurrent OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent	258907000	USD
CY2020Q1	cwt	Regulatory And Other Liabilities RegulatoryAndOtherLiabilities	268917000	USD
CY2019Q4	cwt	Regulatory And Other Liabilities RegulatoryAndOtherLiabilities	270256000	USD
CY2020Q1	us-gaap	Contract With Customer Refund Liability Noncurrent ContractWithCustomerRefundLiabilityNoncurrent	194046000	USD
CY2019Q4	us-gaap	Contract With Customer Refund Liability Noncurrent ContractWithCustomerRefundLiabilityNoncurrent	191062000	USD
CY2020Q1	us-gaap	Contributions In Aid Of Construction ContributionsInAidOfConstruction	242785000	USD
CY2019Q4	us-gaap	Contributions In Aid Of Construction ContributionsInAidOfConstruction	241537000	USD
CY2020Q1	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2019Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
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CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	3111308000	USD
CY2020Q1	us-gaap	Regulated Operating Revenue Water RegulatedOperatingRevenueWater	125563000	USD
CY2019Q1	us-gaap	Regulated Operating Revenue Water RegulatedOperatingRevenueWater	126111000	USD
CY2020Q1	us-gaap	Utilities Operating Expense Products And Services UtilitiesOperatingExpenseProductsAndServices	53976000	USD
CY2019Q1	us-gaap	Utilities Operating Expense Products And Services UtilitiesOperatingExpenseProductsAndServices	45592000	USD
CY2020Q1	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	29680000	USD
CY2019Q1	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	29097000	USD
CY2020Q1	us-gaap	Utilities Operating Expense Other UtilitiesOperatingExpenseOther	13974000	USD
CY2019Q1	us-gaap	Utilities Operating Expense Other UtilitiesOperatingExpenseOther	17821000	USD
CY2020Q1	us-gaap	Utilities Operating Expense Maintenance UtilitiesOperatingExpenseMaintenance	7073000	USD
CY2019Q1	us-gaap	Utilities Operating Expense Maintenance UtilitiesOperatingExpenseMaintenance	6455000	USD
CY2020Q1	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	24492000	USD
CY2019Q1	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	22368000	USD
CY2020Q1	cwt	Utilities Operating Expense Income Tax Expense Benefit UtilitiesOperatingExpenseIncomeTaxExpenseBenefit	-3937000	USD
CY2019Q1	cwt	Utilities Operating Expense Income Tax Expense Benefit UtilitiesOperatingExpenseIncomeTaxExpenseBenefit	-2991000	USD
CY2020Q1	cwt	Utilities Operating Expense Propertyand Other Taxes UtilitiesOperatingExpensePropertyandOtherTaxes	7228000	USD
CY2019Q1	cwt	Utilities Operating Expense Propertyand Other Taxes UtilitiesOperatingExpensePropertyandOtherTaxes	7293000	USD
CY2020Q1	cwt	Utilities Operating Income Expense UtilitiesOperatingIncomeExpense	132486000	USD
CY2019Q1	cwt	Utilities Operating Income Expense UtilitiesOperatingIncomeExpense	125635000	USD
CY2020Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-6923000	USD
CY2020Q1	cwt	Maximum Collection Period In Which Deferred Net Wram And Mcba Revenues And Associated Costs Will Be Recognized MaximumCollectionPeriodInWhichDeferredNetWRAMAndMCBARevenuesAndAssociatedCostsWillBeRecognized	P24M
CY2020Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	140406000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	42653000	USD
CY2020Q1	us-gaap	Restricted Cash Current RestrictedCashCurrent	590000	USD
CY2019Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	645000	USD
CY2020Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	140996000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	43298000	USD
CY2020Q1	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	800000	USD
CY2019Q1	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	2700000	USD
CY2020Q1	us-gaap	Sale Of Stock Number Of Shares Issued In Transaction SaleOfStockNumberOfSharesIssuedInTransaction	115834	shares
CY2020Q1	cwt	Proceeds From Sale Of Common Stock ProceedsFromSaleOfCommonStock	6000000.0	USD
CY2020Q1	us-gaap	Payments For Commissions PaymentsForCommissions	100000	USD
CY2020Q1	cwt	Equity Issuance Costs EquityIssuanceCosts	100000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	779906000	USD
CY2020Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-20307000	USD
CY2020Q1	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	7229000	USD
CY2020Q1	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	1373000	USD
CY2020Q1	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	10315000	USD
CY2020Q1	us-gaap	Stockholders Equity StockholdersEquity	755140000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	730157000	USD
CY2019Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-7640000	USD
CY2019Q1	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	3179000	USD
CY2019Q1	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	2074000	USD
CY2019Q1	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	9493000	USD
CY2019Q1	us-gaap	Stockholders Equity StockholdersEquity	714129000	USD
CY2020Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-20307000	USD
CY2019Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-7640000	USD
CY2020Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	48583000	shares
CY2019Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	48086000	shares
CY2020Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	48583000	shares
CY2019Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	48086000	shares
CY2020Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.42
CY2019Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.16
CY2020Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.42
CY2019Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.16
CY2020Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-4850000	USD
CY2019Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-2163000	USD
CY2020Q1	cwt	Effective Income Tax Rate Reconciliation Increase Decrease Amount EffectiveIncomeTaxRateReconciliationIncreaseDecreaseAmount	-2700000	USD
CY2020Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-4900000	USD
CY2019Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-2200000	USD
CY2020Q1	cwt	Income Loss From Continuing Operations Before Equity Method Investments Income Taxes Noncontrolling Interest Increase Decrease IncomeLossFromContinuingOperationsBeforeEquityMethodInvestmentsIncomeTaxesNoncontrollingInterestIncreaseDecrease	-15400000	USD
CY2020Q1	cwt	Tax Cutsand Jobs Actof2017 Incomplete Accounting Ratepayer Net Refund TaxCutsandJobsActof2017IncompleteAccountingRatepayerNetRefund	107000000.0	USD
CY2020Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	11700000	USD
CY2019Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	10100000	USD
CY2020Q1	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	3300000	USD
CY2019Q1	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	3000000.0	USD
CY2020Q1	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	442819000	USD
CY2019Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	433322000	USD
CY2020Q1	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	210267000	USD
CY2019Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	211413000	USD
CY2020Q1	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	25000000.0	USD
CY2019Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	38200000	USD
CY2020Q1	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	3500000	USD
CY2019Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	4500000	USD
CY2020Q1	us-gaap	Loss Contingency Accrual At Carrying Value LossContingencyAccrualAtCarryingValue	2000000.0	USD
CY2019Q4	us-gaap	Loss Contingency Accrual At Carrying Value LossContingencyAccrualAtCarryingValue	2500000	USD
CY2020Q1	cwt	Fair Value Inputs Risk Premium FairValueInputsRiskPremium	0.0183
CY2020Q1	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	3616418000	USD
CY2020Q1	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	1169447000	USD
CY2020Q1	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	2446971000	USD
CY2020Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	140406000	USD
CY2020Q1	cwt	Accounts Receivable Current And Unbilled Revenue AccountsReceivableCurrentAndUnbilledRevenue	103276000	USD
CY2020Q1	us-gaap	Due From Affiliate Current DueFromAffiliateCurrent	0	USD
CY2020Q1	us-gaap	Other Assets Current OtherAssetsCurrent	26400000	USD
CY2020Q1	us-gaap	Assets Current AssetsCurrent	270082000	USD
CY2020Q1	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	442819000	USD
CY2020Q1	us-gaap	Investments In And Advances To Affiliates Amount Of Equity InvestmentsInAndAdvancesToAffiliatesAmountOfEquity	0	USD
CY2020Q1	us-gaap	Notes Receivable Related Parties Noncurrent NotesReceivableRelatedPartiesNoncurrent	0	USD
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CY2020Q1	cwt	Total Other Assets TotalOtherAssets	523792000	USD
CY2020Q1	us-gaap	Assets Assets	3240845000	USD
CY2020Q1	us-gaap	Stockholders Equity StockholdersEquity	755140000	USD
CY2020Q1	cwt	Affiliate Long Term Debt AffiliateLongTermDebt	0	USD
CY2020Q1	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	786467000	USD
CY2020Q1	us-gaap	Capitalization Longterm Debt And Equity CapitalizationLongtermDebtAndEquity	1541607000	USD
CY2020Q1	us-gaap	Long Term Debt Current LongTermDebtCurrent	21864000	USD
CY2020Q1	us-gaap	Short Term Borrowings ShortTermBorrowings	335100000	USD
CY2020Q1	us-gaap	Due To Affiliate Current DueToAffiliateCurrent	0	USD
CY2020Q1	cwt	Accounts Payable Including Regulatory Liability Current AccountsPayableIncludingRegulatoryLiabilityCurrent	99019000	USD
CY2020Q1	cwt	Accrued Expenses And Other Liabilities Including Accrued Interest AccruedExpensesAndOtherLiabilitiesIncludingAccruedInterest	57144000	USD
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CY2020Q1	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	218451000	USD
CY2020Q1	us-gaap	Other Postretirement Defined Benefit Plan Liabilities Noncurrent OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent	260337000	USD
CY2020Q1	cwt	Regulatory And Other Liabilities RegulatoryAndOtherLiabilities	268917000	USD
CY2020Q1	us-gaap	Contract With Customer Refund Liability Noncurrent ContractWithCustomerRefundLiabilityNoncurrent	194046000	USD
CY2020Q1	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	3240845000	USD
CY2019Q4	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	3550485000	USD
CY2019Q4	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	1144115000	USD
CY2020Q1	us-gaap	Contributions In Aid Of Construction ContributionsInAidOfConstruction	242785000	USD
CY2019Q4	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	2406370000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	42653000	USD
CY2019Q4	cwt	Accounts Receivable Current And Unbilled Revenue AccountsReceivableCurrentAndUnbilledRevenue	119349000	USD
CY2019Q4	us-gaap	Due From Affiliate Current DueFromAffiliateCurrent	0	USD
CY2019Q4	us-gaap	Other Assets Current OtherAssetsCurrent	22710000	USD
CY2019Q4	us-gaap	Assets Current AssetsCurrent	184712000	USD
CY2019Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	433322000	USD
CY2019Q4	us-gaap	Investments In And Advances To Affiliates Amount Of Equity InvestmentsInAndAdvancesToAffiliatesAmountOfEquity	0	USD
CY2019Q4	us-gaap	Notes Receivable Related Parties Noncurrent NotesReceivableRelatedPartiesNoncurrent	0	USD
CY2019Q4	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	86904000	USD
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CY2019Q4	us-gaap	Assets Assets	3111308000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	779906000	USD
CY2019Q4	cwt	Affiliate Long Term Debt AffiliateLongTermDebt	0	USD
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	786754000	USD
CY2019Q4	us-gaap	Capitalization Longterm Debt And Equity CapitalizationLongtermDebtAndEquity	1566660000	USD
CY2019Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	21868000	USD
CY2019Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	175100000	USD
CY2019Q4	us-gaap	Due To Affiliate Current DueToAffiliateCurrent	0	USD
CY2019Q4	cwt	Accounts Payable Including Regulatory Liability Current AccountsPayableIncludingRegulatoryLiabilityCurrent	108463000	USD
CY2019Q4	cwt	Accrued Expenses And Other Liabilities Including Accrued Interest AccruedExpensesAndOtherLiabilitiesIncludingAccruedInterest	53290000	USD
CY2019Q4	us-gaap	Liabilities Current LiabilitiesCurrent	358721000	USD
CY2019Q4	us-gaap	Accumulated Deferred Investment Tax Credit AccumulatedDeferredInvestmentTaxCredit	1575000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	222590000	USD
CY2019Q4	us-gaap	Other Postretirement Defined Benefit Plan Liabilities Noncurrent OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent	258907000	USD
CY2019Q4	cwt	Regulatory And Other Liabilities RegulatoryAndOtherLiabilities	270256000	USD
CY2019Q4	us-gaap	Contract With Customer Refund Liability Noncurrent ContractWithCustomerRefundLiabilityNoncurrent	191062000	USD
CY2019Q4	us-gaap	Contributions In Aid Of Construction ContributionsInAidOfConstruction	241537000	USD
CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	3111308000	USD
CY2020Q1	us-gaap	Regulated Operating Revenue Water RegulatedOperatingRevenueWater	125563000	USD
CY2020Q1	us-gaap	Utilities Operating Expense Products And Services UtilitiesOperatingExpenseProductsAndServices	53976000	USD
CY2020Q1	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	29680000	USD
CY2020Q1	us-gaap	Utilities Operating Expense Other UtilitiesOperatingExpenseOther	13974000	USD
CY2020Q1	us-gaap	Utilities Operating Expense Maintenance UtilitiesOperatingExpenseMaintenance	7073000	USD
CY2020Q1	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	24492000	USD
CY2020Q1	cwt	Utilities Operating Expense Income Tax Expense Benefit UtilitiesOperatingExpenseIncomeTaxExpenseBenefit	-3937000	USD
CY2020Q1	cwt	Utilities Operating Expense Propertyand Other Taxes UtilitiesOperatingExpensePropertyandOtherTaxes	7228000	USD
CY2020Q1	cwt	Utilities Operating Income Expense UtilitiesOperatingIncomeExpense	132486000	USD
CY2020Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-6923000	USD
CY2020Q1	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	3827000	USD
CY2020Q1	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	8454000	USD
CY2020Q1	cwt	Utilities Nonregulated Expense Income Tax Expense Benefit UtilitiesNonregulatedExpenseIncomeTaxExpenseBenefit	-913000	USD
CY2020Q1	us-gaap	Defined Benefit Plan Other Costs DefinedBenefitPlanOtherCosts	1430000	USD
CY2020Q1	us-gaap	Public Utilities Allowance For Funds Used During Construction Additions PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions	1614000	USD
CY2020Q1	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-3530000	USD
CY2020Q1	us-gaap	Interest Expense Debt InterestExpenseDebt	10798000	USD
CY2020Q1	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	944000	USD
CY2020Q1	us-gaap	Interest Costs Incurred InterestCostsIncurred	9854000	USD
CY2020Q1	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	-20307000	USD
CY2019Q1	us-gaap	Regulated Operating Revenue Water RegulatedOperatingRevenueWater	126111000	USD
CY2019Q1	us-gaap	Utilities Operating Expense Products And Services UtilitiesOperatingExpenseProductsAndServices	45592000	USD
CY2019Q1	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	29097000	USD
CY2019Q1	us-gaap	Utilities Operating Expense Other UtilitiesOperatingExpenseOther	17821000	USD
CY2019Q1	us-gaap	Utilities Operating Expense Maintenance UtilitiesOperatingExpenseMaintenance	6455000	USD
CY2019Q1	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	22368000	USD
CY2019Q1	cwt	Utilities Operating Expense Income Tax Expense Benefit UtilitiesOperatingExpenseIncomeTaxExpenseBenefit	-2991000	USD
CY2019Q1	cwt	Utilities Operating Expense Propertyand Other Taxes UtilitiesOperatingExpensePropertyandOtherTaxes	7293000	USD
CY2019Q1	cwt	Utilities Operating Income Expense UtilitiesOperatingIncomeExpense	125635000	USD
CY2019Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	476000	USD
CY2019Q1	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	4901000	USD
CY2019Q1	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	2219000	USD
CY2019Q1	us-gaap	Defined Benefit Plan Other Costs DefinedBenefitPlanOtherCosts	1259000	USD
CY2019Q1	us-gaap	Public Utilities Allowance For Funds Used During Construction Additions PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions	1533000	USD
CY2019Q1	cwt	Utilities Nonregulated Expense Income Tax Expense Benefit UtilitiesNonregulatedExpenseIncomeTaxExpenseBenefit	828000	USD
CY2019Q1	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	2128000	USD
CY2019Q1	us-gaap	Interest Expense Debt InterestExpenseDebt	11075000	USD
CY2019Q1	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	831000	USD
CY2019Q1	us-gaap	Interest Costs Incurred InterestCostsIncurred	10244000	USD
CY2019Q1	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	-7640000	USD
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	-20307000	USD
CY2020Q1	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
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CY2020Q1	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	25093000	USD
CY2020Q1	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	-4717000	USD
CY2020Q1	us-gaap	Public Utilities Allowance For Funds Used During Construction Additions PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions	1614000	USD
CY2020Q1	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	570000	USD
CY2020Q1	cwt	Increase Decrease In Other Noncurrent Assets And Liabilities Net Including Amortization Of Debt Premium And Expenses IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNetIncludingAmortizationOfDebtPremiumAndExpenses	3252000	USD
CY2020Q1	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	4067000	USD
CY2020Q1	us-gaap	Payments To Acquire Water And Waste Water Systems PaymentsToAcquireWaterAndWasteWaterSystems	65270000	USD
CY2020Q1	cwt	Investment In Affiliates InvestmentInAffiliates	0	USD
CY2020Q1	cwt	Payments For Proceeds From Investment In And Advances To Affiliate Related To Investing Activities PaymentsForProceedsFromInvestmentInAndAdvancesToAffiliateRelatedToInvestingActivities	0	USD
CY2020Q1	cwt	Proceedsfrom Issuanceof Shortterm Debtfrom Affiliate ProceedsfromIssuanceofShorttermDebtfromAffiliate	0	USD
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CY2020Q1	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	170000000	USD
CY2020Q1	us-gaap	Repayments Of Short Term Debt RepaymentsOfShortTermDebt	10000000	USD
CY2020Q1	cwt	Investments From Affiliates InvestmentsFromAffiliates	0	USD
CY2020Q1	cwt	Change In Payments For Proceeds From Investment In And Advances To Affiliate Related To Financing Activities ChangeInPaymentsForProceedsFromInvestmentInAndAdvancesToAffiliateRelatedToFinancingActivities	0	USD
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CY2020Q1	us-gaap	Repayments Of Related Party Debt RepaymentsOfRelatedPartyDebt	0	USD
CY2020Q1	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	197000	USD
CY2020Q1	cwt	Proceeds From Contribution In Aid Of Construction Financing Activities ProceedsFromContributionInAidOfConstructionFinancingActivities	6432000	USD
CY2020Q1	us-gaap	Repayments Of Advances For Construction RepaymentsOfAdvancesForConstruction	2157000	USD
CY2020Q1	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1373000	USD
CY2020Q1	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	6511000	USD
CY2020Q1	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	10315000	USD
CY2020Q1	us-gaap	Payments Of Distributions To Affiliates PaymentsOfDistributionsToAffiliates	0	USD
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CY2020Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	97698000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	43298000	USD
CY2020Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	140996000	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	-7640000	USD
CY2019Q1	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
CY2019Q1	us-gaap	Proceeds From Dividends Received ProceedsFromDividendsReceived	0	USD
CY2019Q1	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	22893000	USD
CY2019Q1	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	2254000	USD
CY2019Q1	us-gaap	Public Utilities Allowance For Funds Used During Construction Additions PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions	1533000	USD
CY2019Q1	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	-1155000	USD
CY2019Q1	cwt	Increase Decrease In Other Noncurrent Assets And Liabilities Net Including Amortization Of Debt Premium And Expenses IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNetIncludingAmortizationOfDebtPremiumAndExpenses	-7520000	USD
CY2019Q1	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	20141000	USD
CY2019Q1	us-gaap	Payments To Acquire Water And Waste Water Systems PaymentsToAcquireWaterAndWasteWaterSystems	59881000	USD
CY2019Q1	cwt	Payments For Proceeds From Investment In And Advances To Affiliate Related To Investing Activities PaymentsForProceedsFromInvestmentInAndAdvancesToAffiliateRelatedToInvestingActivities	0	USD
CY2019Q1	cwt	Proceedsfrom Issuanceof Shortterm Debtfrom Affiliate ProceedsfromIssuanceofShorttermDebtfromAffiliate	0	USD
CY2019Q1	cwt	Paymentsfor Affiliate Longterm Debt PaymentsforAffiliateLongtermDebt	0	USD
CY2019Q1	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-59881000	USD
CY2019Q1	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	60000000	USD
CY2019Q1	us-gaap	Increase Decrease In Due To Affiliates IncreaseDecreaseInDueToAffiliates	0	USD
CY2019Q1	cwt	Proceedsfrom Affiliate Short Term Borrowings ProceedsfromAffiliateShortTermBorrowings	0	USD
CY2019Q1	us-gaap	Repayments Of Related Party Debt RepaymentsOfRelatedPartyDebt	0	USD
CY2019Q1	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	226000	USD
CY2019Q1	cwt	Proceeds From Contribution In Aid Of Construction Financing Activities ProceedsFromContributionInAidOfConstructionFinancingActivities	6044000	USD
CY2019Q1	us-gaap	Repayments Of Advances For Construction RepaymentsOfAdvancesForConstruction	1790000	USD
CY2019Q1	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	2074000	USD
CY2019Q1	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	454000	USD
CY2019Q1	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	9493000	USD
CY2019Q1	us-gaap	Payments Of Distributions To Affiliates PaymentsOfDistributionsToAffiliates	0	USD
CY2019Q1	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	52915000	USD
CY2019Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	13175000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	47715000	USD
CY2019Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	60890000	USD

Files In Submission

Name	View Source	Status
0001035201-20-000005-index-headers.html	Edgar Link	pending
0001035201-20-000005-index.html	Edgar Link	pending
0001035201-20-000005.txt	Edgar Link	pending
0001035201-20-000005-xbrl.zip	Edgar Link	pending
cws-03312020x10q.htm	Edgar Link	pending
cws-03312020x10q_htm.xml	Edgar Link	completed
cws-03312020xex311.htm	Edgar Link	pending
cws-03312020xex312.htm	Edgar Link	pending
cws-03312020xex32.htm	Edgar Link	pending
cwt-20200331.xsd	Edgar Link	pending
cwt-20200331_cal.xml	Edgar Link	unprocessable
cwt-20200331_def.xml	Edgar Link	unprocessable
cwt-20200331_lab.xml	Edgar Link	unprocessable
cwt-20200331_pre.xml	Edgar Link	unprocessable
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
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R12.htm	Edgar Link	pending
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R36.htm	Edgar Link	pending
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R4.htm	Edgar Link	pending
R40.htm	Edgar Link	pending
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R44.htm	Edgar Link	pending
R45.htm	Edgar Link	pending
R5.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$CWT
CALIFORNIA WATER SERVICE GROUP Stock $cwt

2020 Q1 Form 10-Q Financial Statement

#000103520120000005 Filed on April 30, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CWT CALIFORNIA WATER SERVICE GROUP Stock $cwt

2020 Q1 Form 10-Q Financial Statement

#000103520120000005 Filed on April 30, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CWT
CALIFORNIA WATER SERVICE GROUP Stock $cwt