$CWT
CALIFORNIA WATER SERVICE GROUP Stock $cwt

$cwt Overview Financials Valuation SEC Filings Company Website

2015 Q4 Form 10-K Financial Statement

#000103520117000003 Filed on February 23, 2017

Income Statement

Concept	2015 Q4	2015 Q3	2015 Q2
Revenue	$138.4M	$183.5M	$144.4M
YoY Change	0.73%	-4.03%	-8.84%
Cost Of Revenue	$37.80M	$60.40M	$53.00M
YoY Change	-23.79%	-9.85%	-14.38%
Gross Profit	$100.6M	$123.1M	$91.40M
YoY Change	14.58%	-0.89%	-5.28%
Gross Profit Margin	72.69%	67.08%	63.3%
Selling, General & Admin	$28.00M	$30.70M	$26.60M
YoY Change	13.36%	28.99%	11.76%
% of Gross Profit	27.83%	24.94%	29.1%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$15.80M	$15.70M	$16.00M
YoY Change	6.76%	2.61%	-3.61%
% of Gross Profit	15.71%	12.75%	17.51%
Operating Expenses	$82.10M	$75.60M	$69.80M
YoY Change	22.35%	17.94%	5.76%
Operating Profit	$14.96M	$32.20M	$16.49M
YoY Change	-9.7%	-21.14%	-29.19%
Interest Expense	-$7.400M	-$6.700M	-$6.600M
YoY Change	15.63%	-4.29%	-4.35%
% of Operating Profit	-49.46%	-20.81%	-40.02%
Other Income/Expense, Net	$1.200M	-$378.0K	-$15.00K
YoY Change	-42.86%	61.54%	-102.03%
Pretax Income	$12.60M	$40.20M	$14.90M
YoY Change	-23.17%	-23.72%	-39.92%
Income Tax	$4.200M	$15.00M	$5.100M
% Of Pretax Income	33.33%	37.31%	34.23%
Net Earnings	$8.477M	$25.12M	$9.845M
YoY Change	-25.6%	-25.35%	-42.66%
Net Earnings / Revenue	6.13%	13.69%	6.82%
Basic Earnings Per Share		$0.52	$0.21
Diluted Earnings Per Share	$0.18	$0.52	$0.21
COMMON SHARES
Basic Shares Outstanding	47.88M shares	47.88M shares	47.88M shares
Diluted Shares Outstanding		47.89M shares	47.89M shares

Balance Sheet

Concept	2015 Q4	2015 Q3	2015 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$8.800M	$50.80M	$24.50M
YoY Change	-55.1%	72.2%	-17.51%
Cash & Equivalents	$8.837M	$50.83M	$24.52M
Short-Term Investments
Other Short-Term Assets	$14.24M	$14.91M	$68.90M
YoY Change	-19.38%	-26.92%	283.5%
Inventory	$6.300M	$6.100M	$6.100M
Prepaid Expenses
Receivables	$31.51M	$41.57M	$29.50M
Other Receivables	$22.70M	$23.20M	$21.20M
Total Short-Term Assets	$127.6M	$191.1M	$150.2M
YoY Change	-17.22%	7.78%	-0.4%
LONG-TERM ASSETS
Property, Plant & Equipment	$1.702B	$1.664B	$1.637B
YoY Change	7.0%	6.59%	6.31%
Goodwill	$2.615M	$2.615M
YoY Change	0.0%	0.0%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$47.40M	$50.74M	$453.6M
YoY Change	4.84%	-0.56%	755.8%
Total Long-Term Assets	$2.114B	$2.115B	$2.093B
YoY Change	3.96%	11.82%	12.55%
TOTAL ASSETS
Total Short-Term Assets	$127.6M	$191.1M	$150.2M
Total Long-Term Assets	$2.114B	$2.115B	$2.093B
Total Assets	$2.241B	$2.307B	$2.243B
YoY Change	2.46%	11.48%	11.58%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$66.38M	$77.26M	$68.70M
YoY Change	11.76%	7.51%	-3.11%
Accrued Expenses	$39.60M	$78.50M	$65.90M
YoY Change	-40.45%	14.77%	16.02%
Deferred Revenue
YoY Change
Short-Term Debt	$33.62M	$136.6M	$126.6M
YoY Change	-57.51%	121.36%	55.88%
Long-Term Debt Due	$6.043M	$6.565M	$6.600M
YoY Change	-8.54%	-0.82%	0.0%
Total Short-Term Liabilities	$147.9M	$300.8M	$270.4M
YoY Change	-32.07%	39.62%	21.76%
LONG-TERM LIABILITIES
Long-Term Debt	$508.0M	$416.4M	$416.8M
YoY Change	21.17%	-1.5%	-1.54%
Other Long-Term Liabilities	$47.15M	$712.0M	$711.5M
YoY Change	0.68%	19.02%	21.02%
Total Long-Term Liabilities	$555.2M	$416.4M	$1.128B
YoY Change	19.11%	-59.21%	166.53%
TOTAL LIABILITIES
Total Short-Term Liabilities	$147.9M	$300.8M	$270.4M
Total Long-Term Liabilities	$555.2M	$416.4M	$1.128B
Total Liabilities	$703.1M	$717.2M	$1.620B
YoY Change	2.82%	-50.43%	151.0%
SHAREHOLDERS EQUITY
Retained Earnings	$308.5M	$308.1M
YoY Change	4.38%	5.52%
Common Stock	$333.6M	$332.8M
YoY Change	0.78%	0.74%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$642.2M	$640.9M	$623.0M
YoY Change
Total Liabilities & Shareholders Equity	$2.241B	$2.307B	$2.243B
YoY Change	2.46%	11.48%	11.58%

Cashflow Statement

Concept	2015 Q4	2015 Q3	2015 Q2
OPERATING ACTIVITIES
Net Income	$8.477M	$25.12M	$9.845M
YoY Change	-25.6%	-25.35%	-42.66%
Depreciation, Depletion And Amortization	$15.80M	$15.70M	$16.00M
YoY Change	6.76%	2.61%	-3.61%
Cash From Operating Activities	$28.10M	$68.20M	$21.40M
YoY Change	0.72%	19.65%	-34.56%
INVESTING ACTIVITIES
Capital Expenditures	-$58.50M	-$42.50M	-$40.80M
YoY Change	28.01%	45.05%	25.93%
Acquisitions
YoY Change
Other Investing Activities	$700.0K	-$1.900M	-$200.0K
YoY Change	600.0%	26.67%	100.0%
Cash From Investing Activities	-$57.90M	-$44.40M	-$40.90M
YoY Change	26.7%	44.63%	25.85%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-12.20M	2.500M	10.70M
YoY Change	-256.41%	-109.4%	35.44%
NET CHANGE
Cash From Operating Activities	28.10M	68.20M	21.40M
Cash From Investing Activities	-57.90M	-44.40M	-40.90M
Cash From Financing Activities	-12.20M	2.500M	10.70M
Net Change In Cash	-42.00M	26.30M	-8.800M
YoY Change	320.0%	-8866.67%	-208.64%
FREE CASH FLOW
Cash From Operating Activities	$28.10M	$68.20M	$21.40M
Capital Expenditures	-$58.50M	-$42.50M	-$40.80M
Free Cash Flow	$86.60M	$110.7M	$62.20M
YoY Change	17.66%	28.27%	-4.45%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2015Q4	cwt	Accounts Payable Including Regulatory Liability Current AccountsPayableIncludingRegulatoryLiabilityCurrent	66380000	USD
CY2016Q4	cwt	Accounts Payable Including Regulatory Liability Current AccountsPayableIncludingRegulatoryLiabilityCurrent	77813000	USD
CY2015Q4	cwt	Accrued Expenses And Other Liabilities Including Accrued Interest AccruedExpensesAndOtherLiabilitiesIncludingAccruedInterest	41860000	USD
CY2016Q4	cwt	Accrued Expenses And Other Liabilities Including Accrued Interest AccruedExpensesAndOtherLiabilitiesIncludingAccruedInterest	49109000	USD
CY2016	cwt	Additional Gain For Cost Recovery Expenses AdditionalGainForCostRecoveryExpenses	0	USD
CY2015Q4	cwt	Affiliate Long Term Debt AffiliateLongTermDebt	0	USD
CY2016Q4	cwt	Affiliate Long Term Debt AffiliateLongTermDebt	0	USD
CY2016	cwt	Commercial Paper Maturity Period CommercialPaperMaturityPeriod	P90D
CY2016	cwt	Completed Contract Method Maximum Contract Completion Period CompletedContractMethodMaximumContractCompletionPeriod	P3M
CY2016Q4	cwt	Customer Advances For Construction Refunds Due Year Five CustomerAdvancesForConstructionRefundsDueYearFive	7600000	USD
CY2016Q4	cwt	Customer Advances For Construction Refunds Due Year Four CustomerAdvancesForConstructionRefundsDueYearFour	7600000	USD
CY2016Q4	cwt	Customer Advances For Construction Refunds Due Year One CustomerAdvancesForConstructionRefundsDueYearOne	7900000	USD
CY2016Q4	cwt	Customer Advances For Construction Refunds Due Year Three CustomerAdvancesForConstructionRefundsDueYearThree	7700000	USD
CY2016Q4	cwt	Customer Advances For Construction Refunds Due Year Two CustomerAdvancesForConstructionRefundsDueYearTwo	7700000	USD
CY2016	cwt	Customer Advances For Construction Specified Refund Period CustomerAdvancesForConstructionSpecifiedRefundPeriod	P40Y
CY2015Q4	cwt	Deferred Tax Assets Developer Deposits For Extension Agreements And Contributions In Aid Of Construction DeferredTaxAssetsDeveloperDepositsForExtensionAgreementsAndContributionsInAidOfConstruction	45670000	USD
CY2016Q4	cwt	Deferred Tax Assets Developer Deposits For Extension Agreements And Contributions In Aid Of Construction DeferredTaxAssetsDeveloperDepositsForExtensionAgreementsAndContributionsInAidOfConstruction	46318000	USD
CY2016	cwt	Defined Benefit Plan Health Care Cost Trend Rate Assumed By Specified Period DefinedBenefitPlanHealthCareCostTrendRateAssumedBySpecifiedPeriod	0.052
CY2016	cwt	Defined Benefit Plan Period In Which Rate Reaches Ultimate Trend Rate DefinedBenefitPlanPeriodInWhichRateReachesUltimateTrendRate	P50Y
CY2016	cwt	Defined Contribution Plan Employer Matching Contribution On Dollar For Participant Contributions DefinedContributionPlanEmployerMatchingContributionOnDollarForParticipantContributions	0.75	USD
CY2016	cwt	Defined Contribution Plan Maximum Employer Contribution As Percentage Of Compensation DefinedContributionPlanMaximumEmployerContributionAsPercentageOfCompensation	0.06
CY2016Q4	cwt	Deposit Assets Cash Collected Through Surcharge On Customers Bills DepositAssetsCashCollectedThroughSurchargeOnCustomersBills	400000	USD
CY2016	cwt	Expected Collection Period For Undercollected Net Wram And Mcba Receivables ExpectedCollectionPeriodForUndercollectedNetWRAMAndMCBAReceivables	P18M
CY2016	cwt	Fair Value Inputs Risk Premium FairValueInputsRiskPremium	0.0170
CY2014	cwt	Increase Decrease In Other Noncurrent Assets And Liabilities Net Including Amortization Of Debt Premium And Expenses IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNetIncludingAmortizationOfDebtPremiumAndExpenses	14521000	USD
CY2015	cwt	Increase Decrease In Other Noncurrent Assets And Liabilities Net Including Amortization Of Debt Premium And Expenses IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNetIncludingAmortizationOfDebtPremiumAndExpenses	-11435000	USD
CY2016	cwt	Increase Decrease In Other Noncurrent Assets And Liabilities Net Including Amortization Of Debt Premium And Expenses IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNetIncludingAmortizationOfDebtPremiumAndExpenses	-6162000	USD
CY2014	cwt	Litigation Proceeds For Mtbe Contamination Reclassified From Other Long Term Liabilities To Ciac LitigationProceedsForMTBEContaminationReclassifiedFromOtherLongTermLiabilitiesToCIAC	0	USD
CY2015	cwt	Litigation Proceeds For Mtbe Contamination Reclassified From Other Long Term Liabilities To Ciac LitigationProceedsForMTBEContaminationReclassifiedFromOtherLongTermLiabilitiesToCIAC	332000	USD
CY2016	cwt	Litigation Proceeds For Mtbe Contamination Reclassified From Other Long Term Liabilities To Ciac LitigationProceedsForMTBEContaminationReclassifiedFromOtherLongTermLiabilitiesToCIAC	484000	USD
CY2016	cwt	Maximum Collection Period In Which Deferred Net Wram And Mcba Revenues And Associated Costs Will Be Recognized MaximumCollectionPeriodInWhichDeferredNetWRAMAndMCBARevenuesAndAssociatedCostsWillBeRecognized	P24M
CY2016	cwt	Minimum Collection Period After Net Receivable Balances Were Recognized In Which The Company Defers Net Wra Mand Mcba Operating Revenues And Associated Costs MinimumCollectionPeriodAfterNetReceivableBalancesWereRecognizedInWhichTheCompanyDefersNetWRAMandMCBAOperatingRevenuesAndAssociatedCosts	P12M
CY2014	cwt	Other Nonoperating Expense Income OtherNonoperatingExpenseIncome	14285000	USD
CY2015	cwt	Other Nonoperating Expense Income OtherNonoperatingExpenseIncome	14044000	USD
CY2016	cwt	Other Nonoperating Expense Income OtherNonoperatingExpenseIncome	11445000	USD
CY2014	cwt	Payments For Proceeds From Investment In And Advances To Affiliate Related To Investing Activities PaymentsForProceedsFromInvestmentInAndAdvancesToAffiliateRelatedToInvestingActivities	0	USD
CY2015	cwt	Payments For Proceeds From Investment In And Advances To Affiliate Related To Investing Activities PaymentsForProceedsFromInvestmentInAndAdvancesToAffiliateRelatedToInvestingActivities	0	USD
CY2016	cwt	Payments For Proceeds From Investment In And Advances To Affiliate Related To Investing Activities PaymentsForProceedsFromInvestmentInAndAdvancesToAffiliateRelatedToInvestingActivities	0	USD
CY2014	cwt	Paymentsfor Affiliate Longterm Debt PaymentsforAffiliateLongtermDebt	0	USD
CY2015	cwt	Paymentsfor Affiliate Longterm Debt PaymentsforAffiliateLongtermDebt	0	USD
CY2016	cwt	Paymentsfor Affiliate Longterm Debt PaymentsforAffiliateLongtermDebt	0	USD
CY2015	cwt	Paymentsfor Affiliate Short Term Borrowings PaymentsforAffiliateShortTermBorrowings	0	USD
CY2016	cwt	Paymentsfor Affiliate Short Term Borrowings PaymentsforAffiliateShortTermBorrowings	0	USD
CY2014	cwt	Paymentsfor Long Term Debtfrom Affiliate PaymentsforLongTermDebtfromAffiliate	0	USD
CY2015	cwt	Paymentsfor Long Term Debtfrom Affiliate PaymentsforLongTermDebtfromAffiliate	0	USD
CY2016	cwt	Paymentsfor Long Term Debtfrom Affiliate PaymentsforLongTermDebtfromAffiliate	0	USD
CY2015	cwt	Paymentsfor Shortterm Debtfrom Affiliate PaymentsforShorttermDebtfromAffiliate	0	USD
CY2016	cwt	Paymentsfor Shortterm Debtfrom Affiliate PaymentsforShorttermDebtfromAffiliate	0	USD
CY2015	cwt	Proceedsfrom Affiliate Shortterm Borrowings ProceedsfromAffiliateShorttermBorrowings	0	USD
CY2016	cwt	Proceedsfrom Affiliate Shortterm Borrowings ProceedsfromAffiliateShorttermBorrowings	0	USD
CY2015	cwt	Proceedsfrom Issuanceof Shortterm Debtfrom Affiliate ProceedsfromIssuanceofShorttermDebtfromAffiliate	0	USD
CY2016	cwt	Proceedsfrom Issuanceof Shortterm Debtfrom Affiliate ProceedsfromIssuanceofShorttermDebtfromAffiliate	0	USD
CY2015Q4	cwt	Regulatory And Other Liabilities RegulatoryAndOtherLiabilities	82414000	USD
CY2016Q4	cwt	Regulatory And Other Liabilities RegulatoryAndOtherLiabilities	83648000	USD
CY2015Q4	cwt	Taxes Prepaid Expenses And Other Assets Current TaxesPrepaidExpensesAndOtherAssetsCurrent	7897000	USD
CY2016Q4	cwt	Taxes Prepaid Expenses And Other Assets Current TaxesPrepaidExpensesAndOtherAssetsCurrent	7262000	USD
CY2015Q4	cwt	Total Other Assets TotalOtherAssets	411907000	USD
CY2016Q4	cwt	Total Other Assets TotalOtherAssets	410399000	USD
CY2015Q4	cwt	Unearned Revenue Liability Included In Accrued Expenses And Other Liabilities UnearnedRevenueLiabilityIncludedInAccruedExpensesAndOtherLiabilities	1300000	USD
CY2016Q4	cwt	Unearned Revenue Liability Included In Accrued Expenses And Other Liabilities UnearnedRevenueLiabilityIncludedInAccruedExpensesAndOtherLiabilities	800000	USD
CY2014	cwt	Utilities Nonregulated Expense Income Tax Expense Benefit UtilitiesNonregulatedExpenseIncomeTaxExpenseBenefit	1245000	USD
CY2015	cwt	Utilities Nonregulated Expense Income Tax Expense Benefit UtilitiesNonregulatedExpenseIncomeTaxExpenseBenefit	761000	USD
CY2016	cwt	Utilities Nonregulated Expense Income Tax Expense Benefit UtilitiesNonregulatedExpenseIncomeTaxExpenseBenefit	2012000	USD
CY2014	cwt	Utilities Operating Expense Income Tax Expense Benefit UtilitiesOperatingExpenseIncomeTaxExpenseBenefit	26727000	USD
CY2015	cwt	Utilities Operating Expense Income Tax Expense Benefit UtilitiesOperatingExpenseIncomeTaxExpenseBenefit	24528000	USD
CY2016	cwt	Utilities Operating Expense Income Tax Expense Benefit UtilitiesOperatingExpenseIncomeTaxExpenseBenefit	24804000	USD
CY2014Q4	cwt	Utility Plant Contribution By Developers UtilityPlantContributionByDevelopers	11556000	USD
CY2015Q4	cwt	Utility Plant Contribution By Developers UtilityPlantContributionByDevelopers	7383000	USD
CY2016Q4	cwt	Utility Plant Contribution By Developers UtilityPlantContributionByDevelopers	16824000	USD
CY2016	cwt	Writeoffof Capital Costs WriteoffofCapitalCosts	3221000	USD
CY2016	dei	Amendment Flag AmendmentFlag	false
CY2016	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2016	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2016	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2016
CY2016	dei	Document Period End Date DocumentPeriodEndDate	2016-12-31
CY2016	dei	Document Type DocumentType	10-K
CY2016	dei	Entity Central Index Key EntityCentralIndexKey	0001035201
CY2017Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	47962952	shares
CY2016	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2016	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2016Q2	dei	Entity Public Float EntityPublicFloat	1676000000	USD
CY2016	dei	Entity Registrant Name EntityRegistrantName	CALIFORNIA WATER SERVICE GROUP
CY2016	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2016	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2015Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	66380000	USD
CY2016Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	77813000	USD
CY2015Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	31512000	USD
CY2016Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	30305000	USD
CY2015Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	3417000	USD
CY2016Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	3629000	USD
CY2015Q4	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	31128000	USD
CY2016Q4	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	35060000	USD
CY2015Q4	us-gaap	Accumulated Deferred Investment Tax Credit AccumulatedDeferredInvestmentTaxCredit	1872000	USD
CY2016Q4	us-gaap	Accumulated Deferred Investment Tax Credit AccumulatedDeferredInvestmentTaxCredit	1798000	USD
CY2015Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	333135000	USD
CY2016Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	334856000	USD
CY2015Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	730000	USD
CY2016Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	830000	USD
CY2014	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	800000	USD
CY2014	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	797000	USD
CY2015	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	825000	USD
CY2015	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	800000	USD
CY2016	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	900000	USD
CY2016	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	871000	USD
CY2014	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1400000	USD
CY2015	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1400000	USD
CY2016	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1600000	USD
CY2015Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	19500000	USD
CY2016Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	20300000	USD
CY2015Q4	us-gaap	Assets Assets	2241253000	USD
CY2016Q4	us-gaap	Assets Assets	2411745000	USD
CY2015Q4	us-gaap	Assets Current AssetsCurrent	127578000	USD
CY2016Q4	us-gaap	Assets Current AssetsCurrent	142069000	USD
CY2016Q4	us-gaap	Capital Leases Future Minimum Payments Due Current CapitalLeasesFutureMinimumPaymentsDueCurrent	1109000	USD
CY2016Q4	us-gaap	Capital Leases Future Minimum Payments Due In Five Years CapitalLeasesFutureMinimumPaymentsDueInFiveYears	940000	USD
CY2016Q4	us-gaap	Capital Leases Future Minimum Payments Due In Four Years CapitalLeasesFutureMinimumPaymentsDueInFourYears	940000	USD
CY2016Q4	us-gaap	Capital Leases Future Minimum Payments Due In Three Years CapitalLeasesFutureMinimumPaymentsDueInThreeYears	1248000	USD
CY2016Q4	us-gaap	Capital Leases Future Minimum Payments Due In Two Years CapitalLeasesFutureMinimumPaymentsDueInTwoYears	1016000	USD
CY2016Q4	us-gaap	Capital Leases Future Minimum Payments Due Thereafter CapitalLeasesFutureMinimumPaymentsDueThereafter	4465000	USD
CY2015Q4	us-gaap	Capitalization Longterm Debt And Equity CapitalizationLongtermDebtAndEquity	1150157000	USD
CY2016Q4	us-gaap	Capitalization Longterm Debt And Equity CapitalizationLongtermDebtAndEquity	1191216000	USD
CY2013Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	27506000	USD
CY2014Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	19587000	USD
CY2015Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	8837000	USD
CY2015Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	8800000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	25492000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	25500000	USD
CY2015Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies	0	USD
CY2016Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies	0	USD
CY2014	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.650
CY2015Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.1675
CY2015Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.1675
CY2015Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.1675
CY2015Q4	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.1675
CY2015	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.670
CY2016Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.1725
CY2016Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.1725
CY2016Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.1725
CY2016Q4	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.1725
CY2016	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.690
CY2015Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2016Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2015Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	68000000	shares
CY2016Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	68000000	shares
CY2015Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	47875139	shares
CY2016Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	47964915	shares
CY2015Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	47875139	shares
CY2015Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	47875000	shares
CY2016Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	47964915	shares
CY2016Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	47965000	shares
CY2015Q4	us-gaap	Common Stock Value CommonStockValue	479000	USD
CY2016Q4	us-gaap	Common Stock Value CommonStockValue	480000	USD
CY2015Q4	us-gaap	Contributions In Aid Of Construction ContributionsInAidOfConstruction	177577000	USD
CY2016Q4	us-gaap	Contributions In Aid Of Construction ContributionsInAidOfConstruction	180790000	USD
CY2014	us-gaap	Cost Of Purchased Power CostOfPurchasedPower	33159000	USD
CY2015	us-gaap	Cost Of Purchased Power CostOfPurchasedPower	27890000	USD
CY2016	us-gaap	Cost Of Purchased Power CostOfPurchasedPower	27180000	USD
CY2014	us-gaap	Cost Of Purchased Water CostOfPurchasedWater	177884000	USD
CY2015	us-gaap	Cost Of Purchased Water CostOfPurchasedWater	168557000	USD
CY2016	us-gaap	Cost Of Purchased Water CostOfPurchasedWater	181515000	USD
CY2014	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-16509000	USD
CY2015	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	9591000	USD
CY2016	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	130000	USD
CY2014	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-18361000	USD
CY2015	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	11297000	USD
CY2016	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	132000	USD
CY2014	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-1852000	USD
CY2015	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1706000	USD
CY2016	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	2000	USD
CY2015Q4	us-gaap	Customer Advances For Construction CustomerAdvancesForConstruction	180172000	USD
CY2015Q4	us-gaap	Customer Advances For Construction CustomerAdvancesForConstruction	180200000	USD
CY2016Q4	us-gaap	Customer Advances For Construction CustomerAdvancesForConstruction	182400000	USD
CY2016Q4	us-gaap	Customer Advances For Construction CustomerAdvancesForConstruction	182448000	USD
CY2015Q4	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.0104
CY2016Q4	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.0133
CY2014	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	44730000	USD
CY2015	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	15374000	USD
CY2016	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	26603000	USD
CY2015Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	4842000	USD
CY2016Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	4475000	USD
CY2015Q4	us-gaap	Deferred Finance Costs Noncurrent Net DeferredFinanceCostsNoncurrentNet	4800000	USD
CY2016Q4	us-gaap	Deferred Finance Costs Noncurrent Net DeferredFinanceCostsNoncurrentNet	4500000	USD
CY2014	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	46333000	USD
CY2015	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	13992000	USD
CY2016	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	26684000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	7922000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	9865000	USD
CY2015Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	336872000	USD
CY2016Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	373106000	USD
CY2014	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	1603000	USD
CY2015	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-1382000	USD
CY2016	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	81000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	71975000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	74182000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	15042000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	12348000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	3341000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	5651000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2015Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	264897000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	298924000	USD
CY2015Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	264897000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	298924000	USD
CY2015Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	3890000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	5321000	USD
CY2015Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	309088000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	347071000	USD
CY2015Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets And Liabilities DeferredTaxLiabilitiesRegulatoryAssetsAndLiabilities	23894000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets And Liabilities DeferredTaxLiabilitiesRegulatoryAssetsAndLiabilities	20714000	USD
CY2016	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Accumulated Postretirement Benefit Obligation1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation1	23345000	USD
CY2016	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Service And Interest Cost Components1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnServiceAndInterestCostComponents1	2598000	USD
CY2016	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Accumulated Postretirement Benefit Obligation DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation	31518000	USD
CY2016	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Service And Interest Cost Components DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents	3648000	USD
CY2016	us-gaap	Defined Benefit Plan Health Care Cost Trend Rate Assumed For Next Fiscal Year DefinedBenefitPlanHealthCareCostTrendRateAssumedForNextFiscalYear	0.079
CY2014	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	8400000	USD
CY2015	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	15100000	USD
CY2016	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	8900000	USD
CY2016	us-gaap	Defined Benefit Plan Ultimate Health Care Cost Trend Rate DefinedBenefitPlanUltimateHealthCareCostTrendRate	0.044
CY2014	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	4500000	USD
CY2015	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	5000000	USD
CY2016	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	5400000	USD
CY2016	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Percent DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent	0.2
CY2014	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	63322000	USD
CY2015	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	63182000	USD
CY2016	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	65203000	USD
CY2014	us-gaap	Dividends Common Stock DividendsCommonStock	31063000	USD
CY2015	us-gaap	Dividends Common Stock DividendsCommonStock	32066000	USD
CY2016	us-gaap	Dividends Common Stock DividendsCommonStock	33081000	USD
CY2015Q4	us-gaap	Due From Affiliate Current DueFromAffiliateCurrent	0	USD
CY2016Q4	us-gaap	Due From Affiliate Current DueFromAffiliateCurrent	0	USD
CY2015Q4	us-gaap	Due To Affiliate Current DueToAffiliateCurrent	0	USD
CY2016Q4	us-gaap	Due To Affiliate Current DueToAffiliateCurrent	0	USD
CY2016Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.24
CY2016Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.48
CY2016Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	22572000	USD
CY2014	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.19
CY2015	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.94
CY2016	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.02
CY2014	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.19
CY2015Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.03
CY2015Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.21
CY2015Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.52
CY2015Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.18
CY2015	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.94
CY2016Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.02
CY2016Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.31
CY2016	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.01
CY2015Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	18784000	USD
CY2014	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	28221000	USD
CY2015	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	24965000	USD
CY2016	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	26733000	USD
CY2015Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	8702000	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	10108000	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	2200000	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	1300000	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	1000000	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	1000000	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	1200000	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	1300000	USD
CY2015Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	17440000	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	18149000	USD
CY2015Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	8738000	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	8041000	USD
CY2014	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	51000	USD
CY2015	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	315000	USD
CY2016	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-146000	USD
CY2016	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	1500000	USD
CY2014	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	97373000	USD
CY2015	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	113110000	USD
CY2016	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	98474000	USD
CY2015Q4	us-gaap	Goodwill Goodwill	2615000	USD
CY2016Q4	us-gaap	Goodwill Goodwill	2615000	USD
CY2014	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
CY2015	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
CY2016	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
CY2014	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	27972000	USD
CY2015	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	25289000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	26816000	USD
CY2014	us-gaap	Income Tax Reconciliation Deductions Qualified Production Activities IncomeTaxReconciliationDeductionsQualifiedProductionActivities	45200000	USD
CY2015	us-gaap	Income Tax Reconciliation Deductions Qualified Production Activities IncomeTaxReconciliationDeductionsQualifiedProductionActivities	60000000	USD
CY2016	us-gaap	Income Tax Reconciliation Deductions Qualified Production Activities IncomeTaxReconciliationDeductionsQualifiedProductionActivities	72000000	USD
CY2014	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	29649000	USD
CY2015	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	24607000	USD
CY2016	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	26422000	USD
CY2014	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation IncomeTaxReconciliationNondeductibleExpenseDepreciation	-5541000	USD
CY2015	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation IncomeTaxReconciliationNondeductibleExpenseDepreciation	-3450000	USD
CY2016	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation IncomeTaxReconciliationNondeductibleExpenseDepreciation	-4298000	USD
CY2014	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-933000	USD
CY2015	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	163000	USD
CY2016	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	425000	USD
CY2014	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	4871000	USD
CY2015	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	4043000	USD
CY2016	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	4341000	USD
CY2014	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	74000	USD
CY2015	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	74000	USD
CY2016	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	74000	USD
CY2014	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-1370000	USD
CY2015	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-819000	USD
CY2016	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	3839000	USD
CY2014	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-34125000	USD
CY2015	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-24393000	USD
CY2016	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-26818000	USD
CY2014	us-gaap	Increase Decrease In Due To Affiliates IncreaseDecreaseInDueToAffiliates	0	USD
CY2015	us-gaap	Increase Decrease In Due To Affiliates IncreaseDecreaseInDueToAffiliates	0	USD
CY2016	us-gaap	Increase Decrease In Due To Affiliates IncreaseDecreaseInDueToAffiliates	0	USD
CY2014	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-5428000	USD
CY2015	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-1106000	USD
CY2016	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	4056000	USD
CY2014	us-gaap	Increase Decrease In Other Noncurrent Assets And Liabilities Net IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet	15318000	USD
CY2015	us-gaap	Increase Decrease In Other Noncurrent Assets And Liabilities Net IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet	-10610000	USD
CY2016	us-gaap	Increase Decrease In Other Noncurrent Assets And Liabilities Net IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet	-6162000	USD
CY2014	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	12681000	USD
CY2015	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	1877000	USD
CY2016	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-6781000	USD
CY2014	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	4160000	USD
CY2015	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	2366000	USD
CY2016	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-1276000	USD
CY2014	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-4983000	USD
CY2015	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-1855000	USD
CY2016	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	343000	USD
CY2014	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	-396000	USD
CY2015	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	-288000	USD
CY2016	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	-66000	USD
CY2014	us-gaap	Increase Decrease In Unbilled Receivables IncreaseDecreaseInUnbilledReceivables	6706000	USD
CY2016	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	16655000	USD
CY2014	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-1283000	USD
CY2015	us-gaap	Increase Decrease In Unbilled Receivables IncreaseDecreaseInUnbilledReceivables	-559000	USD
CY2016	us-gaap	Increase Decrease In Unbilled Receivables IncreaseDecreaseInUnbilledReceivables	2047000	USD
CY2014	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	38000	shares
CY2015	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	15000	shares
CY2016	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	3000	shares
CY2015	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	1900000	USD
CY2016	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	3000000	USD
CY2014	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	1535000	USD
CY2015	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	1915000	USD
CY2016	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	2965000	USD
CY2014	us-gaap	Interest Costs Incurred InterestCostsIncurred	26948000	USD
CY2015	us-gaap	Interest Costs Incurred InterestCostsIncurred	27270000	USD
CY2016	us-gaap	Interest Costs Incurred InterestCostsIncurred	30501000	USD
CY2014	us-gaap	Interest Expense Debt InterestExpenseDebt	28483000	USD
CY2015	us-gaap	Interest Expense Debt InterestExpenseDebt	29185000	USD
CY2016	us-gaap	Interest Expense Debt InterestExpenseDebt	33466000	USD
CY2014	us-gaap	Interest Paid Net InterestPaidNet	21722000	USD
CY2015	us-gaap	Interest Paid Net InterestPaidNet	25345000	USD
CY2016	us-gaap	Interest Paid Net InterestPaidNet	28038000	USD
CY2015Q4	us-gaap	Interest Payable Current InterestPayableCurrent	5088000	USD
CY2016Q4	us-gaap	Interest Payable Current InterestPayableCurrent	5661000	USD
CY2015Q4	us-gaap	Investments In And Advances To Affiliates Amount Of Equity InvestmentsInAndAdvancesToAffiliatesAmountOfEquity	0	USD
CY2016Q4	us-gaap	Investments In And Advances To Affiliates Amount Of Equity InvestmentsInAndAdvancesToAffiliatesAmountOfEquity	0	USD
CY2015Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2241253000	USD
CY2016Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2411745000	USD
CY2015Q4	us-gaap	Liabilities Current LiabilitiesCurrent	147898000	USD
CY2016Q4	us-gaap	Liabilities Current LiabilitiesCurrent	250230000	USD
CY2014	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	994000	USD
CY2015	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	-218000	USD
CY2016	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	1026000	USD
CY2015	us-gaap	Line Of Credit Facility Average Outstanding Amount LineOfCreditFacilityAverageOutstandingAmount	104863000	USD
CY2016	us-gaap	Line Of Credit Facility Average Outstanding Amount LineOfCreditFacilityAverageOutstandingAmount	65804000	USD
CY2015Q4	us-gaap	Line Of Credit Facility Interest Rate At Period End LineOfCreditFacilityInterestRateAtPeriodEnd	0.0103
CY2016Q4	us-gaap	Line Of Credit Facility Interest Rate At Period End LineOfCreditFacilityInterestRateAtPeriodEnd	0.0140
CY2015	us-gaap	Line Of Credit Facility Maximum Amount Outstanding During Period LineOfCreditFacilityMaximumAmountOutstandingDuringPeriod	139582000	USD
CY2016	us-gaap	Line Of Credit Facility Maximum Amount Outstanding During Period LineOfCreditFacilityMaximumAmountOutstandingDuringPeriod	97100000	USD
CY2015Q4	us-gaap	Long Term Debt LongTermDebt	514045000	USD
CY2016Q4	us-gaap	Long Term Debt LongTermDebt	557953000	USD
CY2015Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	6043000	USD
CY2016Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	26208000	USD
CY2015Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	508002000	USD
CY2016Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	531745000	USD
CY2016Q4	us-gaap	Loss Contingency Accrual At Carrying Value LossContingencyAccrualAtCarryingValue	6000000	USD
CY2014	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	-7919000	USD
CY2015	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	-10750000	USD
CY2014	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	128133000	USD
CY2015	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	144631000	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	159700000	USD
CY2015Q1	us-gaap	Net Income Loss NetIncomeLoss	1575000	USD
CY2015Q2	us-gaap	Net Income Loss NetIncomeLoss	9845000	USD
CY2015Q3	us-gaap	Net Income Loss NetIncomeLoss	25120000	USD
CY2015Q4	us-gaap	Net Income Loss NetIncomeLoss	8477000	USD
CY2016Q1	us-gaap	Net Income Loss NetIncomeLoss	-798000	USD
CY2016Q2	us-gaap	Net Income Loss NetIncomeLoss	11508000	USD
CY2016Q3	us-gaap	Net Income Loss NetIncomeLoss	22875000	USD
CY2016Q4	us-gaap	Net Income Loss NetIncomeLoss	15090000	USD
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CY2015	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	45017000	USD
CY2015	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	22877000	USD
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	87794000	USD
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CY2015	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-178258000	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-230839000	USD
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CY2015	us-gaap	Noncash Or Part Noncash Acquisition Payables Assumed1 NoncashOrPartNoncashAcquisitionPayablesAssumed1	21546000	USD
CY2016	us-gaap	Noncash Or Part Noncash Acquisition Payables Assumed1 NoncashOrPartNoncashAcquisitionPayablesAssumed1	27150000	USD
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CY2016	us-gaap	Noncash Project Abandonment Costs NoncashProjectAbandonmentCosts	3221000	USD
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CY2016Q4	us-gaap	Nontrade Receivables Current NontradeReceivablesCurrent	17158000	USD
CY2015Q4	us-gaap	Notes Receivable Related Parties Noncurrent NotesReceivableRelatedPartiesNoncurrent	0	USD
CY2016Q4	us-gaap	Notes Receivable Related Parties Noncurrent NotesReceivableRelatedPartiesNoncurrent	0	USD
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CY2015Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	7497000	USD
CY2015Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	16493000	USD
CY2015Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	32201000	USD
CY2015Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	14962000	USD
CY2015	us-gaap	Operating Income Loss OperatingIncomeLoss	71153000	USD
CY2016Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	6270000	USD
CY2016Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	18534000	USD
CY2016Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	30055000	USD
CY2016Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	21335000	USD
CY2016	us-gaap	Operating Income Loss OperatingIncomeLoss	76194000	USD
CY2015Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	6190000	USD
CY2016Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	6028000	USD
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CY2016Q4	us-gaap	Other Assets Current OtherAssetsCurrent	13554000	USD
CY2015Q4	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	50014000	USD
CY2016Q4	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	54469000	USD
CY2015Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	47399000	USD
CY2016Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	51854000	USD
CY2015Q4	us-gaap	Other Indefinite Lived Intangible Assets OtherIndefiniteLivedIntangibleAssets	3778000	USD
CY2016Q4	us-gaap	Other Indefinite Lived Intangible Assets OtherIndefiniteLivedIntangibleAssets	3776000	USD
CY2015Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	47150000	USD
CY2016Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	44913000	USD
CY2014	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	14285000	USD
CY2015	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	14044000	USD
CY2016	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	11445000	USD
CY2014	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	1839000	USD
CY2015	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	1134000	USD
CY2016	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	2982000	USD
CY2015Q4	us-gaap	Other Postretirement Defined Benefit Plan Liabilities Noncurrent OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent	236266000	USD
CY2016Q4	us-gaap	Other Postretirement Defined Benefit Plan Liabilities Noncurrent OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent	222691000	USD
CY2014	us-gaap	Payments Of Distributions To Affiliates PaymentsOfDistributionsToAffiliates	0	USD
CY2015	us-gaap	Payments Of Distributions To Affiliates PaymentsOfDistributionsToAffiliates	0	USD
CY2016	us-gaap	Payments Of Distributions To Affiliates PaymentsOfDistributionsToAffiliates	0	USD
CY2014	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	31063000	USD
CY2015	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	32066000	USD
CY2016	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	33081000	USD
CY2014	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	0	USD
CY2015	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	0	USD
CY2014	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	3207000	USD
CY2015	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	2032000	USD
CY2016	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	2857000	USD
CY2014	us-gaap	Payments To Acquire Water And Waste Water Systems PaymentsToAcquireWaterAndWasteWaterSystems	132015000	USD
CY2015	us-gaap	Payments To Acquire Water And Waste Water Systems PaymentsToAcquireWaterAndWasteWaterSystems	176833000	USD
CY2016	us-gaap	Payments To Acquire Water And Waste Water Systems PaymentsToAcquireWaterAndWasteWaterSystems	228938000	USD
CY2016Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	241000	shares
CY2015Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2016Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2015Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2016Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2014	us-gaap	Proceeds From Contribution In Aid Of Construction ProceedsFromContributionInAidOfConstruction	12329000	USD
CY2015	us-gaap	Proceeds From Contribution In Aid Of Construction ProceedsFromContributionInAidOfConstruction	16026000	USD
CY2016	us-gaap	Proceeds From Contribution In Aid Of Construction ProceedsFromContributionInAidOfConstruction	21448000	USD
CY2014	us-gaap	Proceeds From Contributions From Affiliates ProceedsFromContributionsFromAffiliates	0	USD
CY2015	us-gaap	Proceeds From Contributions From Affiliates ProceedsFromContributionsFromAffiliates	0	USD
CY2014	us-gaap	Proceeds From Dividends Received ProceedsFromDividendsReceived	0	USD
CY2015	us-gaap	Proceeds From Dividends Received ProceedsFromDividendsReceived	0	USD
CY2016	us-gaap	Proceeds From Dividends Received ProceedsFromDividendsReceived	0	USD
CY2014	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	6000000	USD
CY2016	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	1722000	USD
CY2015	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	0	USD
CY2016	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	0	USD
CY2014	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	497000	USD
CY2015	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	99343000	USD
CY2016	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	49823000	USD
CY2014	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	0	USD
CY2015	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	0	USD
CY2016	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	495000	USD
CY2014	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	57000	USD
CY2015	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	319000	USD
CY2016	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	395000	USD
CY2014	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	117300000	USD
CY2015	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	94303000	USD
CY2016	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	145100000	USD
CY2015Q4	us-gaap	Public Utilities Inventory PublicUtilitiesInventory	6339000	USD
CY2016Q4	us-gaap	Public Utilities Inventory PublicUtilitiesInventory	6292000	USD
CY2015Q4	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	805178000	USD
CY2016Q4	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	858062000	USD
CY2016	us-gaap	Public Utilities Property Plant And Equipment Common Useful Life PublicUtilitiesPropertyPlantAndEquipmentCommonUsefulLife	P50Y
CY2015Q4	us-gaap	Public Utilities Property Plant And Equipment Construction Work In Progress PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress	141622000	USD
CY2016Q4	us-gaap	Public Utilities Property Plant And Equipment Construction Work In Progress PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress	132957000	USD
CY2014	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.0297
CY2015	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.0280
CY2016	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.0270
CY2015Q4	us-gaap	Public Utilities Property Plant And Equipment Equipment PublicUtilitiesPropertyPlantAndEquipmentEquipment	2301841000	USD
CY2016Q4	us-gaap	Public Utilities Property Plant And Equipment Equipment PublicUtilitiesPropertyPlantAndEquipmentEquipment	2522174000	USD
CY2015Q4	us-gaap	Public Utilities Property Plant And Equipment Land PublicUtilitiesPropertyPlantAndEquipmentLand	42264000	USD
CY2016Q4	us-gaap	Public Utilities Property Plant And Equipment Land PublicUtilitiesPropertyPlantAndEquipmentLand	40283000	USD
CY2015Q4	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	1701768000	USD
CY2016Q4	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	1859277000	USD
CY2015Q4	us-gaap	Public Utilities Property Plant And Equipment Other Property Plant And Equipment PublicUtilitiesPropertyPlantAndEquipmentOtherPropertyPlantAndEquipment	21219000	USD
CY2016Q4	us-gaap	Public Utilities Property Plant And Equipment Other Property Plant And Equipment PublicUtilitiesPropertyPlantAndEquipmentOtherPropertyPlantAndEquipment	21925000	USD
CY2015Q4	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	2506946000	USD
CY2016Q4	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	2717339000	USD
CY2014	us-gaap	Pump Taxes PumpTaxes	12898000	USD
CY2015	us-gaap	Pump Taxes PumpTaxes	11479000	USD
CY2016	us-gaap	Pump Taxes PumpTaxes	11298000	USD
CY2015Q4	us-gaap	Receivables Long Term Contracts Or Programs ReceivablesLongTermContractsOrPrograms	23181000	USD
CY2016Q4	us-gaap	Receivables Long Term Contracts Or Programs ReceivablesLongTermContractsOrPrograms	25228000	USD
CY2015Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	104505000	USD
CY2016Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	103023000	USD
CY2014	us-gaap	Regulated Operating Revenue Water RegulatedOperatingRevenueWater	597499000	USD
CY2015Q1	us-gaap	Regulated Operating Revenue Water RegulatedOperatingRevenueWater	121985000	USD
CY2015Q2	us-gaap	Regulated Operating Revenue Water RegulatedOperatingRevenueWater	144414000	USD
CY2015Q3	us-gaap	Regulated Operating Revenue Water RegulatedOperatingRevenueWater	183543000	USD
CY2013Q4	us-gaap	Stockholders Equity StockholdersEquity	598756000	USD
CY2014Q4	us-gaap	Stockholders Equity StockholdersEquity	626626000	USD
CY2015Q4	us-gaap	Stockholders Equity StockholdersEquity	642155000	USD
CY2015Q4	us-gaap	Regulated Operating Revenue Water RegulatedOperatingRevenueWater	138426000	USD
CY2015	us-gaap	Regulated Operating Revenue Water RegulatedOperatingRevenueWater	588368000	USD
CY2016Q1	us-gaap	Regulated Operating Revenue Water RegulatedOperatingRevenueWater	121727000	USD
CY2016Q2	us-gaap	Regulated Operating Revenue Water RegulatedOperatingRevenueWater	152445000	USD
CY2016Q3	us-gaap	Regulated Operating Revenue Water RegulatedOperatingRevenueWater	184268000	USD
CY2016Q4	us-gaap	Regulated Operating Revenue Water RegulatedOperatingRevenueWater	150930000	USD
CY2016	us-gaap	Regulated Operating Revenue Water RegulatedOperatingRevenueWater	609370000	USD
CY2015Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	35052000	USD
CY2015Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	35100000	USD
CY2016Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	30300000	USD
CY2016Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	30332000	USD
CY2015Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	361893000	USD
CY2016Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	355930000	USD
CY2015Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	2227000	USD
CY2015Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	2200000	USD
CY2016Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	4759000	USD
CY2016Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	4800000	USD
CY2015Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	35264000	USD
CY2016Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	38735000	USD
CY2014	us-gaap	Repayments Of Advances For Construction RepaymentsOfAdvancesForConstruction	6641000	USD
CY2015	us-gaap	Repayments Of Advances For Construction RepaymentsOfAdvancesForConstruction	6726000	USD
CY2016	us-gaap	Repayments Of Advances For Construction RepaymentsOfAdvancesForConstruction	6885000	USD
CY2014	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	8705000	USD
CY2015	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	7003000	USD
CY2016	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	6996000	USD
CY2014	us-gaap	Repayments Of Short Term Debt RepaymentsOfShortTermDebt	85000000	USD
CY2015	us-gaap	Repayments Of Short Term Debt RepaymentsOfShortTermDebt	141000000	USD
CY2016	us-gaap	Repayments Of Short Term Debt RepaymentsOfShortTermDebt	81615000	USD
CY2015Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	500000	USD
CY2016Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	400000	USD
CY2015Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	308541000	USD
CY2016Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	324135000	USD
CY2014	us-gaap	Share Based Compensation ShareBasedCompensation	2195000	USD
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	659471000	USD
CY2013Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	612000	USD
CY2014Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	7916000	USD
CY2015	us-gaap	Share Based Compensation ShareBasedCompensation	2578000	USD
CY2016	us-gaap	Share Based Compensation ShareBasedCompensation	2849000	USD
CY2015Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	10298000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	10499000	USD
CY2015Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	33615000	USD
CY2016Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	97100000	USD
CY2014	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	-249000	USD
CY2015	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	324000	USD
CY2016	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	83000	USD
CY2014	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	2195000	USD
CY2015	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	2578000	USD
CY2014	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions		USD
CY2015	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	2382000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	201000	USD
CY2014	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	7304000	USD
CY2015	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2016	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2014	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	USD
CY2014	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2015	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2016	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2015	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	USD
CY2016	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	2300000	USD
CY2014	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	17318000	USD
CY2015	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	15624000	USD
CY2016	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	16585000	USD
CY2014	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	515652000	USD
CY2015	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	517215000	USD
CY2016	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	533176000	USD
CY2014	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	61217000	USD
CY2015	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	61381000	USD
CY2016	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	63599000	USD
CY2014	us-gaap	Utilities Operating Expense Maintenance UtilitiesOperatingExpenseMaintenance	19854000	USD
CY2015	us-gaap	Utilities Operating Expense Maintenance UtilitiesOperatingExpenseMaintenance	21463000	USD
CY2016	us-gaap	Utilities Operating Expense Maintenance UtilitiesOperatingExpenseMaintenance	22993000	USD
CY2014	us-gaap	Utilities Operating Expense Other UtilitiesOperatingExpenseOther	65807000	USD
CY2015	us-gaap	Utilities Operating Expense Other UtilitiesOperatingExpenseOther	67248000	USD
CY2016	us-gaap	Utilities Operating Expense Other UtilitiesOperatingExpenseOther	80082000	USD
CY2014	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	20733000	USD
CY2015	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	21559000	USD
CY2016	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	23231000	USD
CY2014	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	47829000	shares
CY2015	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	47880000	shares
CY2016	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	47956000	shares
CY2014	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	47791000	shares
CY2015	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	47865000	shares
CY2016	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	47953000	shares
CY2015Q4	us-gaap	Workers Compensation Liability Current WorkersCompensationLiabilityCurrent	6154000	USD
CY2016Q4	us-gaap	Workers Compensation Liability Current WorkersCompensationLiabilityCurrent	6460000	USD

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$CWT
CALIFORNIA WATER SERVICE GROUP Stock $cwt

2015 Q4 Form 10-K Financial Statement

#000103520117000003 Filed on February 23, 2017

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CWT CALIFORNIA WATER SERVICE GROUP Stock $cwt

2015 Q4 Form 10-K Financial Statement

#000103520117000003 Filed on February 23, 2017

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CWT
CALIFORNIA WATER SERVICE GROUP Stock $cwt