2017 Q4 Form 10-K Financial Statement
#000076682919000063 Filed on February 27, 2019
Income Statement
| Concept | 2017 Q4 | 2017 Q3 | 2017 Q2 |
|---|---|---|---|
| Revenue | $93.50M | $124.6M | $102.1M |
| YoY Change | 17.91% | 10.93% | 17.46% |
| Cost Of Revenue | $15.50M | $18.30M | $12.60M |
| YoY Change | 103.95% | 40.77% | 27.27% |
| Gross Profit | $78.00M | $106.3M | $89.50M |
| YoY Change | 8.79% | 7.05% | 16.23% |
| Gross Profit Margin | 83.42% | 85.33% | 87.68% |
| Selling, General & Admin | $13.50M | $11.40M | $11.20M |
| YoY Change | 150.0% | -5.0% | 0.9% |
| % of Gross Profit | 17.31% | 10.72% | 12.51% |
| Research & Development | |||
| YoY Change | |||
| % of Gross Profit | |||
| Depreciation & Amortization | $12.60M | $12.60M | $12.70M |
| YoY Change | 8.62% | 9.57% | 9.48% |
| % of Gross Profit | 16.15% | 11.85% | 14.19% |
| Operating Expenses | $58.90M | $67.10M | $57.70M |
| YoY Change | 15.49% | 6.51% | 22.25% |
| Operating Profit | $18.21M | $38.25M | $30.79M |
| YoY Change | 11.14% | 5.22% | 3.31% |
| Interest Expense | -$5.600M | $5.541M | $5.756M |
| YoY Change | -216.67% | 2.12% | 5.25% |
| % of Operating Profit | -30.75% | 14.49% | 18.7% |
| Other Income/Expense, Net | -$400.0K | $359.0K | $614.0K |
| YoY Change | -89.47% | -12.44% | 309.33% |
| Pretax Income | $25.60M | $33.06M | $32.55M |
| YoY Change | 17.97% | 5.06% | 17.56% |
| Income Tax | $10.70M | $13.52M | $11.96M |
| % Of Pretax Income | 41.8% | 40.9% | 36.76% |
| Net Earnings | $17.31M | $19.54M | $18.69M |
| YoY Change | 26.07% | 3.06% | 11.4% |
| Net Earnings / Revenue | 18.51% | 15.68% | 18.31% |
| Basic Earnings Per Share | $0.84 | $0.95 | $0.91 |
| Diluted Earnings Per Share | $0.84 | $0.94 | $0.90 |
| COMMON SHARES | |||
| Basic Shares Outstanding | 20.52M shares | 20.52M shares | 20.50M shares |
| Diluted Shares Outstanding | 20.70M shares | 20.67M shares |
Balance Sheet
| Concept | 2017 Q4 | 2017 Q3 | 2017 Q2 |
|---|---|---|---|
| SHORT-TERM ASSETS | |||
| Cash & Short-Term Investments | $7.800M | $7.600M | $9.200M |
| YoY Change | 23.81% | -57.06% | -26.4% |
| Cash & Equivalents | $7.799M | $7.569M | $9.228M |
| Short-Term Investments | |||
| Other Short-Term Assets | $4.750M | $5.223M | $4.179M |
| YoY Change | 7.91% | 3.53% | -7.67% |
| Inventory | |||
| Prepaid Expenses | |||
| Receivables | $17.31M | $23.30M | $19.64M |
| Other Receivables | $9.100M | $1.600M | $1.100M |
| Total Short-Term Assets | $66.86M | $87.12M | $72.89M |
| YoY Change | -32.88% | -34.66% | -21.38% |
| LONG-TERM ASSETS | |||
| Property, Plant & Equipment | $45.08M | $45.38M | $45.68M |
| YoY Change | -10.66% | -10.52% | -10.42% |
| Goodwill | |||
| YoY Change | |||
| Intangibles | |||
| YoY Change | |||
| Long-Term Investments | $4.500M | $3.800M | $3.700M |
| YoY Change | 32.35% | 18.75% | 5.71% |
| Other Assets | $2.709M | $7.758M | $7.621M |
| YoY Change | -65.46% | -2.37% | -3.86% |
| Total Long-Term Assets | $106.8M | $152.5M | $158.4M |
| YoY Change | -27.32% | 5.29% | -2.83% |
| TOTAL ASSETS | |||
| Total Short-Term Assets | $66.86M | $87.12M | $72.89M |
| Total Long-Term Assets | $106.8M | $152.5M | $158.4M |
| Total Assets | $1.956B | $1.512B | $1.471B |
| YoY Change | 35.54% | 3.94% | 5.13% |
| SHORT-TERM LIABILITIES | |||
| YoY Change | |||
| Accounts Payable | $22.96M | $30.66M | $27.06M |
| YoY Change | 22.53% | 41.46% | 13.85% |
| Accrued Expenses | $29.20M | $36.30M | $30.50M |
| YoY Change | 24.26% | 36.47% | 37.39% |
| Deferred Revenue | |||
| YoY Change | |||
| Short-Term Debt | $25.00M | $13.00M | $0.00 |
| YoY Change | 76.06% | -79.66% | -100.0% |
| Long-Term Debt Due | $0.00 | $0.00 | $0.00 |
| YoY Change | -100.0% | -100.0% | -100.0% |
| Total Short-Term Liabilities | $85.05M | $93.42M | $70.40M |
| YoY Change | 33.79% | -38.19% | -41.38% |
| LONG-TERM LIABILITIES | |||
| Long-Term Debt | $431.1M | $431.0M | $430.9M |
| YoY Change | -0.52% | 18.33% | 18.33% |
| Other Long-Term Liabilities | $13.01M | $12.85M | $12.76M |
| YoY Change | -0.31% | 16.08% | 15.97% |
| Total Long-Term Liabilities | $444.1M | $443.9M | $443.7M |
| YoY Change | -0.51% | 18.27% | 18.26% |
| TOTAL LIABILITIES | |||
| Total Short-Term Liabilities | $85.05M | $93.42M | $70.40M |
| Total Long-Term Liabilities | $444.1M | $443.9M | $443.7M |
| Total Liabilities | $529.2M | $537.3M | $514.1M |
| YoY Change | 3.76% | 2.06% | 3.8% |
| SHAREHOLDERS EQUITY | |||
| Retained Earnings | $376.1M | $366.8M | $351.8M |
| YoY Change | 11.15% | 11.55% | 12.01% |
| Common Stock | $84.89M | $83.88M | $82.64M |
| YoY Change | 3.86% | 3.09% | 2.79% |
| Preferred Stock | |||
| YoY Change | |||
| Treasury Stock (at cost) | |||
| YoY Change | |||
| Treasury Stock Shares | |||
| Shareholders Equity | $463.2M | $452.5M | $436.1M |
| YoY Change | |||
| Total Liabilities & Shareholders Equity | $1.458B | $1.512B | $1.471B |
| YoY Change | 1.01% | 3.94% | 5.13% |
Cashflow Statement
| Concept | 2017 Q4 | 2017 Q3 | 2017 Q2 |
|---|---|---|---|
| OPERATING ACTIVITIES | |||
| Net Income | $17.31M | $19.54M | $18.69M |
| YoY Change | 26.07% | 3.06% | 11.4% |
| Depreciation, Depletion And Amortization | $12.60M | $12.60M | $12.70M |
| YoY Change | 8.62% | 9.57% | 9.48% |
| Cash From Operating Activities | $13.10M | $31.00M | $28.80M |
| YoY Change | -65.25% | 44.19% | 26.32% |
| INVESTING ACTIVITIES | |||
| Capital Expenditures | -$43.10M | -$40.80M | -$35.80M |
| YoY Change | 28.27% | -4.0% | 8.16% |
| Acquisitions | |||
| YoY Change | |||
| Other Investing Activities | $24.60M | -$1.600M | $13.80M |
| YoY Change | -1466.67% | -108.21% | 253.85% |
| Cash From Investing Activities | -$18.40M | -$42.50M | -$22.00M |
| YoY Change | -48.02% | 85.59% | -24.91% |
| FINANCING ACTIVITIES | |||
| Cash Dividend Paid | |||
| YoY Change | |||
| Common Stock Issuance & Retirement, Net | |||
| YoY Change | |||
| Debt Paid & Issued, Net | |||
| YoY Change | |||
| Cash From Financing Activities | 5.500M | 9.800M | -4.600M |
| YoY Change | 0.0% | 50.77% | -144.66% |
| NET CHANGE | |||
| Cash From Operating Activities | 13.10M | 31.00M | 28.80M |
| Cash From Investing Activities | -18.40M | -42.50M | -22.00M |
| Cash From Financing Activities | 5.500M | 9.800M | -4.600M |
| Net Change In Cash | 200.0K | -1.700M | 2.200M |
| YoY Change | -97.44% | -133.33% | -42.11% |
| FREE CASH FLOW | |||
| Cash From Operating Activities | $13.10M | $31.00M | $28.80M |
| Capital Expenditures | -$43.10M | -$40.80M | -$35.80M |
| Free Cash Flow | $56.20M | $71.80M | $64.60M |
| YoY Change | -21.18% | 12.19% | 15.56% |
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Increase Decreasein Accrued Groundwater Extraction Charges Purchased Waterand Power
IncreaseDecreaseinAccruedGroundwaterExtractionChargesPurchasedWaterandPower
|
-688000 | USD |
| CY2018Q1 | sjw |
Memorandum Account Authorized Recovery
MemorandumAccountAuthorizedRecovery
|
20725000 | USD |
| CY2016 | sjw |
Noncash Change In Accrued Payables
NoncashChangeInAccruedPayables
|
3696000 | USD |
| CY2017 | sjw |
Noncash Change In Accrued Payables
NoncashChangeInAccruedPayables
|
2700000 | USD |
| CY2018 | sjw |
Noncash Change In Accrued Payables
NoncashChangeInAccruedPayables
|
340000 | USD |
| CY2018 | sjw |
Number Of Subsidiaries
NumberOfSubsidiaries
|
4 | subsidiary |
| CY2016 | sjw |
Payments To Acquire Businesses Assets And Water Rights
PaymentsToAcquireBusinessesAssetsAndWaterRights
|
1070000 | USD |
| CY2017 | sjw |
Payments To Acquire Businesses Assets And Water Rights
PaymentsToAcquireBusinessesAssetsAndWaterRights
|
1149000 | USD |
| CY2018 | sjw |
Payments To Acquire Businesses Assets And Water Rights
PaymentsToAcquireBusinessesAssetsAndWaterRights
|
2496000 | USD |
| CY2016 | sjw |
Payments To Acquire Water Systems Using Contributions In Aid Of Construction
PaymentsToAcquireWaterSystemsUsingContributionsInAidOfConstruction
|
13086000 | USD |
| CY2017 | sjw |
Payments To Acquire Water Systems Using Contributions In Aid Of Construction
PaymentsToAcquireWaterSystemsUsingContributionsInAidOfConstruction
|
7842000 | USD |
| CY2018 | sjw |
Payments To Acquire Water Systems Using Contributions In Aid Of Construction
PaymentsToAcquireWaterSystemsUsingContributionsInAidOfConstruction
|
8454000 | USD |
| CY2018Q1 | sjw |
Public Utilities Approved Reimbursement Fee Percentage
PublicUtilitiesApprovedReimbursementFeePercentage
|
0.0140 | |
| CY2017 | sjw |
Public Utilities Approved Reimbursement Fee Percentage
PublicUtilitiesApprovedReimbursementFeePercentage
|
0.0144 | |
| CY2018 | sjw |
Reductionin Delivery Schedule Percent
ReductioninDeliverySchedulePercent
|
0.1 | |
| CY2016 | sjw |
Regulated Operating Revenue Water Surcharge
RegulatedOperatingRevenueWaterSurcharge
|
3770000 | USD |
| CY2017 | sjw |
Regulated Operating Revenue Water Surcharge
RegulatedOperatingRevenueWaterSurcharge
|
5017000 | USD |
| CY2018 | sjw |
Regulated Operating Revenue Water Surcharge
RegulatedOperatingRevenueWaterSurcharge
|
5013000 | USD |
| CY2018Q4 | sjw |
Regulatory Balancingand Memorandum Accounts Net Under Collected
RegulatoryBalancingandMemorandumAccountsNetUnderCollected
|
1573000 | USD |
| CY2016 | sjw |
Regulatory Balancingand Memorandum Accounts Revenue Net
RegulatoryBalancingandMemorandumAccountsRevenueNet
|
-5241000 | USD |
| CY2017 | sjw |
Regulatory Balancingand Memorandum Accounts Revenue Net
RegulatoryBalancingandMemorandumAccountsRevenueNet
|
-10838000 | USD |
| CY2018 | sjw |
Regulatory Balancingand Memorandum Accounts Revenue Net
RegulatoryBalancingandMemorandumAccountsRevenueNet
|
-7541000 | USD |
| CY2018Q4 | sjw |
Regulatory Balancingand Memorandum Accounts Review Authorized Revenue Threshold Percentage
RegulatoryBalancingandMemorandumAccountsReviewAuthorizedRevenueThresholdPercentage
|
0.02 | |
| CY2018Q1 | sjw |
Regulatory Rate Filings Proposed Rate Increase Percentof Authorized Revenue Year Two
RegulatoryRateFilingsProposedRateIncreasePercentofAuthorizedRevenueYearTwo
|
0.0370 | |
| CY2018Q1 | sjw |
Regulatory Rate Filings Requested Rate Increase Percent Of Authorized Revenue Year Three
RegulatoryRateFilingsRequestedRateIncreasePercentOfAuthorizedRevenueYearThree
|
0.0517 | |
| CY2018Q1 | sjw |
Regulatory Rate Filings Requested Rate Increase Year One
RegulatoryRateFilingsRequestedRateIncreaseYearOne
|
34288000 | USD |
| CY2018Q1 | sjw |
Regulatory Rate Filings Requested Rate Increase Year Three
RegulatoryRateFilingsRequestedRateIncreaseYearThree
|
20582000 | USD |
| CY2018Q1 | sjw |
Regulatory Rate Filings Requested Rate Increase Year Two
RegulatoryRateFilingsRequestedRateIncreaseYearTwo
|
14232000 | USD |
| CY2018Q1 | sjw |
Regulatory Rate Filings Requested Rate Increaseas Percentageof Total Revenueat Timeof Request Year One
RegulatoryRateFilingsRequestedRateIncreaseasPercentageofTotalRevenueatTimeofRequestYearOne
|
0.0976 | |
| CY2016 | sjw |
Share Based Compensation Arrangement By Share Based Payment Award Employee Contributions To Employee Stock Purchase Plan
ShareBasedCompensationArrangementByShareBasedPaymentAwardEmployeeContributionsToEmployeeStockPurchasePlan
|
1060000 | USD |
| CY2017 | sjw |
Share Based Compensation Arrangement By Share Based Payment Award Employee Contributions To Employee Stock Purchase Plan
ShareBasedCompensationArrangementByShareBasedPaymentAwardEmployeeContributionsToEmployeeStockPurchasePlan
|
1282000 | USD |
| CY2018 | sjw |
Share Based Compensation Arrangement By Share Based Payment Award Employee Contributions To Employee Stock Purchase Plan
ShareBasedCompensationArrangementByShareBasedPaymentAwardEmployeeContributionsToEmployeeStockPurchasePlan
|
1523000 | USD |
| CY2017 | sjw |
Tax Cuts And Jobs Act Of2017 Incomplete Accounting Change In Tax Rate Deferred Tax Asset Provisional Income Tax Expense
TaxCutsAndJobsActOf2017IncompleteAccountingChangeInTaxRateDeferredTaxAssetProvisionalIncomeTaxExpense
|
2357000 | USD |
| CY2018Q4 | sjw |
Tax Cuts And Jobs Act Of2017 Measurement Period Adjustment Increase Decrease Of Regulatory Liability
TaxCutsAndJobsActOf2017MeasurementPeriodAdjustmentIncreaseDecreaseOfRegulatoryLiability
|
455000 | USD |
| CY2018Q4 | sjw |
Tax Cuts And Jobs Actof2017 Measurement Period Adjustment Income Tax Expense Benefit
TaxCutsAndJobsActof2017MeasurementPeriodAdjustmentIncomeTaxExpenseBenefit
|
67000 | USD |
| CY2017Q4 | sjw |
Unrecognized Tax Benefits Gross
UnrecognizedTaxBenefitsGross
|
1359000 | USD |
| CY2018Q4 | sjw |
Unrecognized Tax Benefits Gross
UnrecognizedTaxBenefitsGross
|
1411000 | USD |
| CY2016 | sjw |
Utility Property Installed By Developer
UtilityPropertyInstalledByDeveloper
|
9614000 | USD |
| CY2017 | sjw |
Utility Property Installed By Developer
UtilityPropertyInstalledByDeveloper
|
3723000 | USD |
| CY2018 | sjw |
Utility Property Installed By Developer
UtilityPropertyInstalledByDeveloper
|
1747000 | USD |
| CY2016Q2 | sjw |
Water Reduction Target Goal Percentage
WaterReductionTargetGoalPercentage
|
0.20 | |
| CY2017Q4 | us-gaap |
Accounts Payable Current
AccountsPayableCurrent
|
22960000 | USD |
| CY2018Q4 | us-gaap |
Accounts Payable Current
AccountsPayableCurrent
|
24937000 | USD |
| CY2017Q4 | us-gaap |
Accounts Receivable Net Current
AccountsReceivableNetCurrent
|
17305000 | USD |
| CY2018Q4 | us-gaap |
Accounts Receivable Net Current
AccountsReceivableNetCurrent
|
19154000 | USD |
| CY2017Q4 | us-gaap |
Accrual For Taxes Other Than Income Taxes Current
AccrualForTaxesOtherThanIncomeTaxesCurrent
|
1904000 | USD |
| CY2018Q4 | us-gaap |
Accrual For Taxes Other Than Income Taxes Current
AccrualForTaxesOtherThanIncomeTaxesCurrent
|
1926000 | USD |
| CY2017Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
2203000 | USD |
| CY2018Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
0 | USD |
| CY2017Q4 | us-gaap |
Additional Paid In Capital Common Stock
AdditionalPaidInCapitalCommonStock
|
84866000 | USD |
| CY2018Q4 | us-gaap |
Additional Paid In Capital Common Stock
AdditionalPaidInCapitalCommonStock
|
495366000 | USD |
| CY2016 | us-gaap |
Adjustment To Additional Paid In Capital Income Tax Effect From Share Based Compensation Net
AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet
|
203000 | USD |
| CY2016 | us-gaap |
Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
|
1577000 | USD |
| CY2017 | us-gaap |
Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
|
2504000 | USD |
| CY2018 | us-gaap |
Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
|
2020000 | USD |
| CY2016 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
1691000 | USD |
| CY2017 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
2643000 | USD |
| CY2018 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
2117000 | USD |
| CY2017Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
|
190000 | USD |
| CY2018Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
|
272000 | USD |
| CY2016 | us-gaap |
Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
|
530000 | USD |
| CY2017 | us-gaap |
Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
|
616000 | USD |
| CY2018 | us-gaap |
Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
|
647000 | USD |
| CY2017Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
5231000 | USD |
| CY2018Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
4803000 | USD |
| CY2017Q4 | us-gaap |
Asset Retirement Obligation Legally Restricted Assets Fair Value
AssetRetirementObligationLegallyRestrictedAssetsFairValue
|
1184000 | USD |
| CY2018Q4 | us-gaap |
Assets
Assets
|
1956389000 | USD |
| CY2018Q4 | us-gaap |
Asset Retirement Obligation Legally Restricted Assets Fair Value
AssetRetirementObligationLegallyRestrictedAssetsFairValue
|
942000 | USD |
| CY2017Q4 | us-gaap |
Assets
Assets
|
1458001000 | USD |
| CY2017Q4 | us-gaap |
Assets Current
AssetsCurrent
|
66858000 | USD |
| CY2018Q4 | us-gaap |
Assets Current
AssetsCurrent
|
502722000 | USD |
| CY2017Q4 | us-gaap |
Assets Noncurrent
AssetsNoncurrent
|
106798000 | USD |
| CY2018Q4 | us-gaap |
Assets Noncurrent
AssetsNoncurrent
|
80837000 | USD |
| CY2017Q4 | us-gaap |
Available For Sale Securities Equity Securities Noncurrent
AvailableForSaleSecuritiesEquitySecuritiesNoncurrent
|
4535000 | USD |
| CY2018Q4 | us-gaap |
Available For Sale Securities Equity Securities Noncurrent
AvailableForSaleSecuritiesEquitySecuritiesNoncurrent
|
0 | USD |
| CY2016 | us-gaap |
Available For Sale Securities Gross Realized Gain Loss Net
AvailableForSaleSecuritiesGrossRealizedGainLossNet
|
3197000 | USD |
| CY2017 | us-gaap |
Available For Sale Securities Gross Realized Gain Loss Net
AvailableForSaleSecuritiesGrossRealizedGainLossNet
|
0 | USD |
| CY2018 | us-gaap |
Available For Sale Securities Gross Realized Gain Loss Net
AvailableForSaleSecuritiesGrossRealizedGainLossNet
|
104000 | USD |
| CY2018Q4 | us-gaap |
Bridge Loan
BridgeLoan
|
563000000 | USD |
| CY2018Q4 | us-gaap |
Bridge Loan
BridgeLoan
|
975000000 | USD |
| CY2016 | us-gaap |
Business Combination Acquisition Related Costs
BusinessCombinationAcquisitionRelatedCosts
|
0 | USD |
| CY2017 | us-gaap |
Business Combination Acquisition Related Costs
BusinessCombinationAcquisitionRelatedCosts
|
0 | USD |
| CY2018 | us-gaap |
Business Combination Acquisition Related Costs
BusinessCombinationAcquisitionRelatedCosts
|
18610000 | USD |
| CY2017Q4 | us-gaap |
Capitalization Longterm Debt And Equity
CapitalizationLongtermDebtAndEquity
|
894301000 | USD |
| CY2018Q4 | us-gaap |
Capitalization Longterm Debt And Equity
CapitalizationLongtermDebtAndEquity
|
1320736000 | USD |
| CY2017Q4 | us-gaap |
Cash
Cash
|
7799000 | USD |
| CY2018Q4 | us-gaap |
Cash
Cash
|
8722000 | USD |
| CY2016Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
6349000 | USD |
| CY2017Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
7799000 | USD |
| CY2018Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
420722000 | USD |
| CY2015Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
5239000 | USD |
| CY2016Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
25350000 | USD |
| CY2017Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
7799000 | USD |
| CY2018Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
420722000 | USD |
| CY2016 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
|
20111000 | USD |
| CY2017 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
|
-17551000 | USD |
| CY2018 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
|
412923000 | USD |
| CY2017Q4 | us-gaap |
Cash Equivalents At Carrying Value
CashEquivalentsAtCarryingValue
|
0 | USD |
| CY2018Q4 | us-gaap |
Cash Equivalents At Carrying Value
CashEquivalentsAtCarryingValue
|
412000000 | USD |
| CY2017Q4 | us-gaap |
Commitments And Contingencies
CommitmentsAndContingencies
|
0 | USD |
| CY2018Q4 | us-gaap |
Commitments And Contingencies
CommitmentsAndContingencies
|
0 | USD |
| CY2016 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.81 | |
| CY2017 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
1.04 | |
| CY2018 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
1.12 | |
| CY2017Q1 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
0.22 | |
| CY2017Q2 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
0.22 | |
| CY2017Q3 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
0.22 | |
| CY2017Q4 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
0.38 | |
| CY2018Q1 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
0.28 | |
| CY2018Q2 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
0.28 | |
| CY2018Q3 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
0.28 | |
| CY2018Q4 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
0.28 | |
| CY2017Q4 | us-gaap |
Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
|
0.001 | |
| CY2018Q4 | us-gaap |
Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
|
0.001 | |
| CY2017Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
36000000 | shares |
| CY2018Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
36000000 | shares |
| CY2017Q4 | us-gaap |
Common Stock Shares Issued
CommonStockSharesIssued
|
20520856 | shares |
| CY2018Q4 | us-gaap |
Common Stock Shares Issued
CommonStockSharesIssued
|
28404316 | shares |
| CY2017Q4 | us-gaap |
Common Stock Shares Outstanding
CommonStockSharesOutstanding
|
20520856 | shares |
| CY2017Q4 | us-gaap |
Common Stock Shares Outstanding
CommonStockSharesOutstanding
|
20520856 | shares |
| CY2018Q4 | us-gaap |
Common Stock Shares Outstanding
CommonStockSharesOutstanding
|
28404316 | shares |
| CY2018Q4 | us-gaap |
Common Stock Shares Outstanding
CommonStockSharesOutstanding
|
28404316 | shares |
| CY2017Q4 | us-gaap |
Common Stock Value
CommonStockValue
|
21000 | USD |
| CY2018Q4 | us-gaap |
Common Stock Value
CommonStockValue
|
28000 | USD |
| CY2016 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
52052000 | USD |
| CY2017Q1 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
3787000 | USD |
| CY2017Q2 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
18744000 | USD |
| CY2017Q3 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
19620000 | USD |
| CY2017Q4 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
17732000 | USD |
| CY2017 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
59883000 | USD |
| CY2018Q1 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
1285000 | USD |
| CY2018Q2 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
12871000 | USD |
| CY2018Q3 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
15788000 | USD |
| CY2018Q4 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
8823000 | USD |
| CY2018 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
38767000 | USD |
| CY2017Q4 | us-gaap |
Contributions In Aid Of Construction
ContributionsInAidOfConstruction
|
160830000 | USD |
| CY2018Q4 | us-gaap |
Contributions In Aid Of Construction
ContributionsInAidOfConstruction
|
168243000 | USD |
| CY2016 | us-gaap |
Cost Of Purchased Water
CostOfPurchasedWater
|
72971000 | USD |
| CY2017 | us-gaap |
Cost Of Purchased Water
CostOfPurchasedWater
|
86456000 | USD |
| CY2018 | us-gaap |
Cost Of Purchased Water
CostOfPurchasedWater
|
97378000 | USD |
| CY2017Q4 | us-gaap |
Cumulative Effect Of New Accounting Principle In Period Of Adoption
CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption
|
0 | USD |
| CY2016 | us-gaap |
Cumulative Effect On Retained Earnings Tax1
CumulativeEffectOnRetainedEarningsTax1
|
0 | USD |
| CY2017 | us-gaap |
Cumulative Effect On Retained Earnings Tax1
CumulativeEffectOnRetainedEarningsTax1
|
0 | USD |
| CY2018 | us-gaap |
Cumulative Effect On Retained Earnings Tax1
CumulativeEffectOnRetainedEarningsTax1
|
1507000 | USD |
| CY2016 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
21651000 | USD |
| CY2017 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
29377000 | USD |
| CY2018 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
14485000 | USD |
| CY2016 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
7088000 | USD |
| CY2017 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
6452000 | USD |
| CY2018 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
5066000 | USD |
| CY2017Q4 | us-gaap |
Customer Advances For Construction
CustomerAdvancesForConstruction
|
83695000 | USD |
| CY2018Q4 | us-gaap |
Customer Advances For Construction
CustomerAdvancesForConstruction
|
80610000 | USD |
| CY2016 | us-gaap |
Debt And Equity Securities Gain Loss
DebtAndEquitySecuritiesGainLoss
|
1894000 | USD |
| CY2018 | us-gaap |
Debt And Equity Securities Gain Loss
DebtAndEquitySecuritiesGainLoss
|
75000 | USD |
| CY2016 | us-gaap |
Debt Securities Available For Sale Realized Gain Loss
DebtSecuritiesAvailableForSaleRealizedGainLoss
|
3197000 | USD |
| CY2017 | us-gaap |
Debt Securities Available For Sale Realized Gain Loss
DebtSecuritiesAvailableForSaleRealizedGainLoss
|
0 | USD |
| CY2018 | us-gaap |
Debt Securities Available For Sale Realized Gain Loss
DebtSecuritiesAvailableForSaleRealizedGainLoss
|
104000 | USD |
| CY2016 | us-gaap |
Debt Securities Available For Sale Unrealized Gain Loss
DebtSecuritiesAvailableForSaleUnrealizedGainLoss
|
0 | USD |
| CY2017 | us-gaap |
Debt Securities Available For Sale Unrealized Gain Loss
DebtSecuritiesAvailableForSaleUnrealizedGainLoss
|
0 | USD |
| CY2018 | us-gaap |
Debt Securities Available For Sale Unrealized Gain Loss
DebtSecuritiesAvailableForSaleUnrealizedGainLoss
|
527000 | USD |
| CY2016 | us-gaap |
Deferred Compensation Arrangement With Individual Contributions By Employer
DeferredCompensationArrangementWithIndividualContributionsByEmployer
|
1242000 | USD |
| CY2017 | us-gaap |
Deferred Compensation Arrangement With Individual Contributions By Employer
DeferredCompensationArrangementWithIndividualContributionsByEmployer
|
1585000 | USD |
| CY2018 | us-gaap |
Deferred Compensation Arrangement With Individual Contributions By Employer
DeferredCompensationArrangementWithIndividualContributionsByEmployer
|
1465000 | USD |
| CY2016 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
6119000 | USD |
| CY2017 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
-1174000 | USD |
| CY2018 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
-7702000 | USD |
| CY2016 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
4803000 | USD |
| CY2017 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
-436000 | USD |
| CY2018 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
-9486000 | USD |
| CY2017Q4 | us-gaap |
Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
|
141963000 | USD |
| CY2018Q4 | us-gaap |
Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
|
140156000 | USD |
| CY2016 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
|
-1316000 | USD |
| CY2017 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
|
738000 | USD |
| CY2018 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
|
-1784000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Gross
DeferredTaxAssetsGross
|
56168000 | USD |
| CY2018Q4 | us-gaap |
Deferred Tax Assets Gross
DeferredTaxAssetsGross
|
60505000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Other
DeferredTaxAssetsOther
|
3440000 | USD |
| CY2018Q4 | us-gaap |
Deferred Tax Assets Other
DeferredTaxAssetsOther
|
3336000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Regulatory Assets And Liabilities
DeferredTaxAssetsRegulatoryAssetsAndLiabilities
|
17166000 | USD |
| CY2018Q4 | us-gaap |
Deferred Tax Assets Regulatory Assets And Liabilities
DeferredTaxAssetsRegulatoryAssetsAndLiabilities
|
16212000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Assets State Taxes
DeferredTaxAssetsStateTaxes
|
1278000 | USD |
| CY2018Q4 | us-gaap |
Deferred Tax Assets State Taxes
DeferredTaxAssetsStateTaxes
|
981000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Tax Credit Carryforwards General Business
DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness
|
441000 | USD |
| CY2018Q4 | us-gaap |
Deferred Tax Assets Tax Credit Carryforwards General Business
DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness
|
418000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Liabilities Financing Arrangements
DeferredTaxLiabilitiesFinancingArrangements
|
204000 | USD |
| CY2018Q4 | us-gaap |
Deferred Tax Liabilities Financing Arrangements
DeferredTaxLiabilitiesFinancingArrangements
|
170000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Liabilities Investments
DeferredTaxLiabilitiesInvestments
|
1199000 | USD |
| CY2018Q4 | us-gaap |
Deferred Tax Liabilities Investments
DeferredTaxLiabilitiesInvestments
|
0 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Liabilities Noncurrent
DeferredTaxLiabilitiesNoncurrent
|
85795000 | USD |
| CY2018Q4 | us-gaap |
Deferred Tax Liabilities Noncurrent
DeferredTaxLiabilitiesNoncurrent
|
79651000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Liabilities Other
DeferredTaxLiabilitiesOther
|
1041000 | USD |
| CY2018Q4 | us-gaap |
Deferred Tax Liabilities Other
DeferredTaxLiabilitiesOther
|
968000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
|
114695000 | USD |
| CY2018Q4 | us-gaap |
Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
|
114731000 | USD |
| CY2017 | us-gaap |
Defined Benefit Plan Amortization Of Gains Losses
DefinedBenefitPlanAmortizationOfGainsLosses
|
200000 | USD |
| CY2018 | us-gaap |
Defined Benefit Plan Amortization Of Gains Losses
DefinedBenefitPlanAmortizationOfGainsLosses
|
-1388000 | USD |
| CY2017Q4 | us-gaap |
Defined Benefit Plan Fair Value Of Plan Assets
DefinedBenefitPlanFairValueOfPlanAssets
|
140164000 | USD |
| CY2018Q4 | us-gaap |
Defined Benefit Plan Fair Value Of Plan Assets
DefinedBenefitPlanFairValueOfPlanAssets
|
133459000 | USD |
| CY2016 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
46295000 | USD |
| CY2017 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
50501000 | USD |
| CY2018 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
56907000 | USD |
| CY2016 | us-gaap |
Dividends
Dividends
|
16559000 | USD |
| CY2017 | us-gaap |
Dividends
Dividends
|
21332000 | USD |
| CY2018 | us-gaap |
Dividends
Dividends
|
23074000 | USD |
| CY2016 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
2.59 | |
| CY2017Q1 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.18 | |
| CY2017Q2 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.91 | |
| CY2017Q3 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.95 | |
| CY2017Q4 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.84 | |
| CY2017 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
2.89 | |
| CY2018Q1 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.06 | |
| CY2018Q2 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.63 | |
| CY2018Q3 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.77 | |
| CY2018Q4 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.38 | |
| CY2018 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
1.83 | |
| CY2016 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
2.57 | |
| CY2017Q1 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.18 | |
| CY2017Q2 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.90 | |
| CY2017Q3 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.94 | |
| CY2017Q4 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.84 | |
| CY2017 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
2.86 | |
| CY2018Q1 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.06 | |
| CY2018Q2 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.62 | |
| CY2018Q3 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.76 | |
| CY2018Q4 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.38 | |
| CY2018 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
1.82 | |
| CY2017Q4 | us-gaap |
Employee Related Liabilities Current
EmployeeRelatedLiabilitiesCurrent
|
6011000 | USD |
| CY2018Q4 | us-gaap |
Employee Related Liabilities Current
EmployeeRelatedLiabilitiesCurrent
|
7181000 | USD |
| CY2017 | us-gaap |
Excess Tax Benefit From Share Based Compensation Financing Activities
ExcessTaxBenefitFromShareBasedCompensationFinancingActivities
|
0 | USD |
| CY2018 | us-gaap |
Excess Tax Benefit From Share Based Compensation Financing Activities
ExcessTaxBenefitFromShareBasedCompensationFinancingActivities
|
0 | USD |
| CY2018Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Next Twelve Months
FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths
|
647000 | USD |
| CY2018Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Five
FiniteLivedIntangibleAssetsAmortizationExpenseYearFive
|
647000 | USD |
| CY2018Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Four
FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
|
647000 | USD |
| CY2018Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Three
FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
|
647000 | USD |
| CY2018Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Two
FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
|
647000 | USD |
| CY2017Q4 | us-gaap |
Finite Lived Intangible Assets Gross
FiniteLivedIntangibleAssetsGross
|
14413000 | USD |
| CY2018Q4 | us-gaap |
Finite Lived Intangible Assets Gross
FiniteLivedIntangibleAssetsGross
|
15799000 | USD |
| CY2017Q4 | us-gaap |
Finite Lived Intangible Assets Net
FiniteLivedIntangibleAssetsNet
|
6320000 | USD |
| CY2018Q4 | us-gaap |
Finite Lived Intangible Assets Net
FiniteLivedIntangibleAssetsNet
|
7059000 | USD |
| CY2016 | us-gaap |
Gain Loss On Disposition Of Assets
GainLossOnDispositionOfAssets
|
0 | USD |
| CY2017 | us-gaap |
Gain Loss On Disposition Of Assets
GainLossOnDispositionOfAssets
|
12499000 | USD |
| CY2018 | us-gaap |
Gain Loss On Disposition Of Assets
GainLossOnDispositionOfAssets
|
0 | USD |
| CY2016 | us-gaap |
Gain Loss On Sale Of Properties
GainLossOnSaleOfProperties
|
10419000 | USD |
| CY2017 | us-gaap |
Gain Loss On Sale Of Properties
GainLossOnSaleOfProperties
|
6903000 | USD |
| CY2018 | us-gaap |
Gain Loss On Sale Of Properties
GainLossOnSaleOfProperties
|
0 | USD |
| CY2016 | us-gaap |
Gain Loss On Sale Of Stock In Subsidiary Or Equity Method Investee
GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee
|
0 | USD |
| CY2017 | us-gaap |
Gain Loss On Sale Of Stock In Subsidiary Or Equity Method Investee
GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee
|
12499000 | USD |
| CY2018 | us-gaap |
Gain Loss On Sale Of Stock In Subsidiary Or Equity Method Investee
GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee
|
9000 | USD |
| CY2016 | us-gaap |
General And Administrative Expense
GeneralAndAdministrativeExpense
|
41529000 | USD |
| CY2017 | us-gaap |
General And Administrative Expense
GeneralAndAdministrativeExpense
|
48940000 | USD |
| CY2018 | us-gaap |
General And Administrative Expense
GeneralAndAdministrativeExpense
|
48933000 | USD |
| CY2016 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
86381000 | USD |
| CY2017 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
96493000 | USD |
| CY2018 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
48832000 | USD |
| CY2016 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
33542000 | USD |
| CY2017 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
35393000 | USD |
| CY2018 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
10065000 | USD |
| CY2016 | us-gaap |
Income Tax Reconciliation Change In Enacted Tax Rate
IncomeTaxReconciliationChangeInEnactedTaxRate
|
0 | USD |
| CY2017 | us-gaap |
Income Tax Reconciliation Change In Enacted Tax Rate
IncomeTaxReconciliationChangeInEnactedTaxRate
|
-2357000 | USD |
| CY2018 | us-gaap |
Income Tax Reconciliation Change In Enacted Tax Rate
IncomeTaxReconciliationChangeInEnactedTaxRate
|
0 | USD |
| CY2016 | us-gaap |
Income Tax Reconciliation Deductions Dividends
IncomeTaxReconciliationDeductionsDividends
|
21000 | USD |
| CY2017 | us-gaap |
Income Tax Reconciliation Deductions Dividends
IncomeTaxReconciliationDeductionsDividends
|
18000 | USD |
| CY2018 | us-gaap |
Income Tax Reconciliation Deductions Dividends
IncomeTaxReconciliationDeductionsDividends
|
4000 | USD |
| CY2016 | us-gaap |
Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
|
30233000 | USD |
| CY2017 | us-gaap |
Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
|
33773000 | USD |
| CY2018 | us-gaap |
Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
|
10255000 | USD |
| CY2016 | us-gaap |
Income Tax Reconciliation Minority Interest Income Expense
IncomeTaxReconciliationMinorityInterestIncomeExpense
|
0 | USD |
| CY2017 | us-gaap |
Income Tax Reconciliation Minority Interest Income Expense
IncomeTaxReconciliationMinorityInterestIncomeExpense
|
664000 | USD |
| CY2018 | us-gaap |
Income Tax Reconciliation Minority Interest Income Expense
IncomeTaxReconciliationMinorityInterestIncomeExpense
|
0 | USD |
| CY2016 | us-gaap |
Income Tax Reconciliation Nondeductible Expense Depreciation
IncomeTaxReconciliationNondeductibleExpenseDepreciation
|
-1184000 | USD |
| CY2017 | us-gaap |
Income Tax Reconciliation Nondeductible Expense Depreciation
IncomeTaxReconciliationNondeductibleExpenseDepreciation
|
-1159000 | USD |
| CY2018 | us-gaap |
Income Tax Reconciliation Nondeductible Expense Depreciation
IncomeTaxReconciliationNondeductibleExpenseDepreciation
|
-899000 | USD |
| CY2016 | us-gaap |
Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost
IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost
|
0 | USD |
| CY2017 | us-gaap |
Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost
IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost
|
-552000 | USD |
| CY2018 | us-gaap |
Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost
IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost
|
-1602000 | USD |
| CY2016 | us-gaap |
Income Tax Reconciliation Other Reconciling Items
IncomeTaxReconciliationOtherReconcilingItems
|
-376000 | USD |
| CY2017 | us-gaap |
Income Tax Reconciliation Other Reconciling Items
IncomeTaxReconciliationOtherReconcilingItems
|
1372000 | USD |
| CY2018 | us-gaap |
Income Tax Reconciliation Other Reconciling Items
IncomeTaxReconciliationOtherReconcilingItems
|
254000 | USD |
| CY2016 | us-gaap |
Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
|
4874000 | USD |
| CY2017 | us-gaap |
Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
|
4986000 | USD |
| CY2018 | us-gaap |
Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
|
3420000 | USD |
| CY2016 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
27517000 | USD |
| CY2017 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
34052000 | USD |
| CY2018 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
13750000 | USD |
| CY2017Q4 | us-gaap |
Income Taxes Receivable
IncomeTaxesReceivable
|
7981000 | USD |
| CY2018Q4 | us-gaap |
Income Taxes Receivable
IncomeTaxesReceivable
|
1888000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
-337000 | USD |
| CY2017 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
2888000 | USD |
| CY2018 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
2130000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Accrued Taxes Payable
IncreaseDecreaseInAccruedTaxesPayable
|
-680000 | USD |
| CY2017 | us-gaap |
Increase Decrease In Accrued Taxes Payable
IncreaseDecreaseInAccruedTaxesPayable
|
2164000 | USD |
| CY2018 | us-gaap |
Increase Decrease In Accrued Taxes Payable
IncreaseDecreaseInAccruedTaxesPayable
|
5841000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Other Operating Capital Net
IncreaseDecreaseInOtherOperatingCapitalNet
|
-854000 | USD |
| CY2017 | us-gaap |
Increase Decrease In Other Operating Capital Net
IncreaseDecreaseInOtherOperatingCapitalNet
|
-827000 | USD |
| CY2018 | us-gaap |
Increase Decrease In Other Operating Capital Net
IncreaseDecreaseInOtherOperatingCapitalNet
|
-1697000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Pension And Postretirement Obligations
IncreaseDecreaseInPensionAndPostretirementObligations
|
-349000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax
|
1742000 | USD |
| CY2018 | us-gaap |
Increase Decrease In Pension And Postretirement Obligations
IncreaseDecreaseInPensionAndPostretirementObligations
|
203000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Receivables
IncreaseDecreaseInReceivables
|
5377000 | USD |
| CY2018 | us-gaap |
Interest Paid
InterestPaid
|
27038000 | USD |
| CY2017 | us-gaap |
Increase Decrease In Pension And Postretirement Obligations
IncreaseDecreaseInPensionAndPostretirementObligations
|
-769000 | USD |
| CY2017 | us-gaap |
Increase Decrease In Receivables
IncreaseDecreaseInReceivables
|
1702000 | USD |
| CY2018 | us-gaap |
Increase Decrease In Receivables
IncreaseDecreaseInReceivables
|
2003000 | USD |
| CY2016 | us-gaap |
Interest Costs Capitalized
InterestCostsCapitalized
|
2188000 | USD |
| CY2017 | us-gaap |
Interest Costs Capitalized
InterestCostsCapitalized
|
2807000 | USD |
| CY2018 | us-gaap |
Interest Costs Capitalized
InterestCostsCapitalized
|
2856000 | USD |
| CY2016 | us-gaap |
Interest Expense Debt
InterestExpenseDebt
|
21838000 | USD |
| CY2017 | us-gaap |
Interest Expense Debt
InterestExpenseDebt
|
22929000 | USD |
| CY2018 | us-gaap |
Interest Expense Debt
InterestExpenseDebt
|
24332000 | USD |
| CY2016 | us-gaap |
Interest Paid
InterestPaid
|
23962000 | USD |
| CY2017 | us-gaap |
Interest Paid
InterestPaid
|
25254000 | USD |
| CY2017Q4 | us-gaap |
Interest Payable Current
InterestPayableCurrent
|
6869000 | USD |
| CY2018Q4 | us-gaap |
Interest Payable Current
InterestPayableCurrent
|
7132000 | USD |
| CY2017Q4 | us-gaap |
Investment Building And Building Improvements
InvestmentBuildingAndBuildingImprovements
|
42951000 | USD |
| CY2018Q4 | us-gaap |
Investment Building And Building Improvements
InvestmentBuildingAndBuildingImprovements
|
43074000 | USD |
| CY2017Q4 | us-gaap |
Land
Land
|
13262000 | USD |
| CY2018Q4 | us-gaap |
Land
Land
|
13262000 | USD |
| CY2017Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
1458001000 | USD |
| CY2018Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
1956389000 | USD |
| CY2017Q4 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
85052000 | USD |
| CY2018Q4 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
163985000 | USD |
| CY2017Q4 | us-gaap |
Lines Of Credit Current
LinesOfCreditCurrent
|
25000000 | USD |
| CY2018Q4 | us-gaap |
Lines Of Credit Current
LinesOfCreditCurrent
|
100000000 | USD |
| CY2017Q4 | us-gaap |
Long Term Debt
LongTermDebt
|
435000000 | USD |
| CY2018Q4 | us-gaap |
Long Term Debt
LongTermDebt
|
435000000 | USD |
| CY2017Q4 | us-gaap |
Long Term Debt Current
LongTermDebtCurrent
|
0 | USD |
| CY2018Q4 | us-gaap |
Long Term Debt Current
LongTermDebtCurrent
|
0 | USD |
| CY2017Q4 | us-gaap |
Long Term Debt Noncurrent
LongTermDebtNoncurrent
|
431092000 | USD |
| CY2018Q4 | us-gaap |
Long Term Debt Noncurrent
LongTermDebtNoncurrent
|
431424000 | USD |
| CY2016 | us-gaap |
Marketable Securities Unrealized Gain Loss
MarketableSecuritiesUnrealizedGainLoss
|
0 | USD |
| CY2017 | us-gaap |
Marketable Securities Unrealized Gain Loss
MarketableSecuritiesUnrealizedGainLoss
|
0 | USD |
| CY2018 | us-gaap |
Marketable Securities Unrealized Gain Loss
MarketableSecuritiesUnrealizedGainLoss
|
-527000 | USD |
| CY2017 | us-gaap |
Minority Interest Decrease From Distributions To Noncontrolling Interest Holders
MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
|
1896000 | USD |
| CY2016 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
27669000 | USD |
| CY2017 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
-4789000 | USD |
| CY2018 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
468423000 | USD |
| CY2016 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-122129000 | USD |
| CY2017 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-113874000 | USD |
| CY2018 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-146843000 | USD |
| CY2016 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
114571000 | USD |
| CY2017 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
101112000 | USD |
| CY2018 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
91343000 | USD |
| CY2016 | us-gaap |
Net Income Loss
NetIncomeLoss
|
52839000 | USD |
| CY2017Q1 | us-gaap |
Net Income Loss
NetIncomeLoss
|
3671000 | USD |
| CY2017Q2 | us-gaap |
Net Income Loss
NetIncomeLoss
|
18688000 | USD |
| CY2017Q3 | us-gaap |
Net Income Loss
NetIncomeLoss
|
19540000 | USD |
| CY2017Q4 | us-gaap |
Net Income Loss
NetIncomeLoss
|
17305000 | USD |
| CY2017 | us-gaap |
Net Income Loss
NetIncomeLoss
|
59204000 | USD |
| CY2018Q1 | us-gaap |
Net Income Loss
NetIncomeLoss
|
1285000 | USD |
| CY2018Q2 | us-gaap |
Net Income Loss
NetIncomeLoss
|
12871000 | USD |
| CY2018Q3 | us-gaap |
Net Income Loss
NetIncomeLoss
|
15788000 | USD |
| CY2018Q4 | us-gaap |
Net Income Loss
NetIncomeLoss
|
8823000 | USD |
| CY2018 | us-gaap |
Net Income Loss
NetIncomeLoss
|
38767000 | USD |
| CY2016 | us-gaap |
Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
|
0 | USD |
| CY2017 | us-gaap |
Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
|
1896000 | USD |
| CY2018 | us-gaap |
Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
|
0 | USD |
| CY2016 | us-gaap |
Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component
NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent
|
4321000 | USD |
| CY2017 | us-gaap |
Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component
NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent
|
3772000 | USD |
| CY2018 | us-gaap |
Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component
NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent
|
2356000 | USD |
| CY2017Q4 | us-gaap |
Net Regulatory Assets
NetRegulatoryAssets
|
99554000 | USD |
| CY2018Q4 | us-gaap |
Net Regulatory Assets
NetRegulatoryAssets
|
103625000 | USD |
| CY2017Q4 | us-gaap |
Nontrade Receivables Current
NontradeReceivablesCurrent
|
1118000 | USD |
| CY2018Q4 | us-gaap |
Nontrade Receivables Current
NontradeReceivablesCurrent
|
1203000 | USD |
| CY2018 | us-gaap |
Number Of Reportable Segments
NumberOfReportableSegments
|
2 | reportable_segment |
| CY2016 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
97437000 | USD |
| CY2017Q1 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
10833000 | USD |
| CY2017Q2 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
30787000 | USD |
| CY2017Q3 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
38245000 | USD |
| CY2017Q4 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
18214000 | USD |
| CY2017 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
101851000 | USD |
| CY2018Q1 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
7331000 | USD |
| CY2018Q2 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
22799000 | USD |
| CY2018Q3 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
25828000 | USD |
| CY2018Q4 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
17482000 | USD |
| CY2018 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
73440000 | USD |
| CY2018Q4 | us-gaap |
Operating Leases Future Minimum Payments Due Current
OperatingLeasesFutureMinimumPaymentsDueCurrent
|
4432000 | USD |
| CY2018Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Five Years
OperatingLeasesFutureMinimumPaymentsDueInFiveYears
|
1198000 | USD |
| CY2018Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Four Years
OperatingLeasesFutureMinimumPaymentsDueInFourYears
|
1184000 | USD |
| CY2018Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Three Years
OperatingLeasesFutureMinimumPaymentsDueInThreeYears
|
2644000 | USD |
| CY2018Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Two Years
OperatingLeasesFutureMinimumPaymentsDueInTwoYears
|
4513000 | USD |
| CY2018Q4 | us-gaap |
Operating Leases Future Minimum Payments Due Thereafter
OperatingLeasesFutureMinimumPaymentsDueThereafter
|
5565000 | USD |
| CY2016 | us-gaap |
Operating Leases Income Statement Lease Revenue
OperatingLeasesIncomeStatementLeaseRevenue
|
6717000 | USD |
| CY2017 | us-gaap |
Operating Leases Income Statement Lease Revenue
OperatingLeasesIncomeStatementLeaseRevenue
|
5702000 | USD |
| CY2018 | us-gaap |
Operating Leases Income Statement Lease Revenue
OperatingLeasesIncomeStatementLeaseRevenue
|
5482000 | USD |
| CY2017Q4 | us-gaap |
Other Assets Current
OtherAssetsCurrent
|
4750000 | USD |
| CY2018Q4 | us-gaap |
Other Assets Current
OtherAssetsCurrent
|
4871000 | USD |
| CY2017Q4 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
2709000 | USD |
| CY2016 | us-gaap |
Water Production Costs
WaterProductionCosts
|
125631000 | USD |
| CY2018Q4 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
4122000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax
|
0 | USD |
| CY2018 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax
|
0 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax
|
1198000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax
|
0 | USD |
| CY2018 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax
|
0 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
|
955000 | USD |
| CY2017 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
1941000 | USD |
| CY2018 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
2494000 | USD |
| CY2016 | us-gaap |
Payments For Proceeds From Removal Costs
PaymentsForProceedsFromRemovalCosts
|
3361000 | USD |
| CY2017 | us-gaap |
Payments For Proceeds From Removal Costs
PaymentsForProceedsFromRemovalCosts
|
3356000 | USD |
| CY2018 | us-gaap |
Payments For Proceeds From Removal Costs
PaymentsForProceedsFromRemovalCosts
|
3909000 | USD |
| CY2016 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
16559000 | USD |
| CY2017 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
21332000 | USD |
| CY2018 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
23074000 | USD |
| CY2016 | us-gaap |
Payments To Acquire Real Estate
PaymentsToAcquireRealEstate
|
328000 | USD |
| CY2017 | us-gaap |
Payments To Acquire Real Estate
PaymentsToAcquireRealEstate
|
116000 | USD |
| CY2017Q4 | us-gaap |
Other Liabilities Current
OtherLiabilitiesCurrent
|
7926000 | USD |
| CY2018Q4 | us-gaap |
Other Liabilities Current
OtherLiabilitiesCurrent
|
9115000 | USD |
| CY2017Q4 | us-gaap |
Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
|
13011000 | USD |
| CY2018Q4 | us-gaap |
Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
|
13525000 | USD |
| CY2016 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
1487000 | USD |
| CY2018 | us-gaap |
Payments To Acquire Real Estate
PaymentsToAcquireRealEstate
|
123000 | USD |
| CY2016 | us-gaap |
Payments To Acquire Water Systems
PaymentsToAcquireWaterSystems
|
129134000 | USD |
| CY2017 | us-gaap |
Payments To Acquire Water Systems
PaymentsToAcquireWaterSystems
|
141213000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
|
679000 | USD |
| CY2018 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
|
0 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax
|
657000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax
|
466000 | USD |
| CY2018 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax
|
0 | USD |
| CY2018 | us-gaap |
Payments To Acquire Water Systems
PaymentsToAcquireWaterSystems
|
135973000 | USD |
| CY2017Q4 | us-gaap |
Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
|
72841000 | USD |
| CY2018Q4 | us-gaap |
Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
|
70490000 | USD |
| CY2017Q4 | us-gaap |
Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
|
0.001 | |
| CY2018Q4 | us-gaap |
Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
|
0.001 | |
| CY2017Q4 | us-gaap |
Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
|
1000000 | shares |
| CY2018Q4 | us-gaap |
Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
|
1000000 | shares |
| CY2017Q4 | us-gaap |
Preferred Stock Shares Issued
PreferredStockSharesIssued
|
0 | shares |
| CY2018Q4 | us-gaap |
Preferred Stock Shares Issued
PreferredStockSharesIssued
|
0 | shares |
| CY2017Q4 | us-gaap |
Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
|
0 | shares |
| CY2018Q4 | us-gaap |
Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
|
0 | shares |
| CY2016 | us-gaap |
Proceeds From Contribution In Aid Of Construction
ProceedsFromContributionInAidOfConstruction
|
14366000 | USD |
| CY2017 | us-gaap |
Proceeds From Contribution In Aid Of Construction
ProceedsFromContributionInAidOfConstruction
|
12581000 | USD |
| CY2018 | us-gaap |
Proceeds From Contribution In Aid Of Construction
ProceedsFromContributionInAidOfConstruction
|
10890000 | USD |
| CY2016 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
0 | USD |
| CY2017 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
0 | USD |
| CY2018 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
411385000 | USD |
| CY2016 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
50999000 | USD |
| CY2017 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
0 | USD |
| CY2018 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
0 | USD |
| CY2016 | us-gaap |
Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options
ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions
|
954000 | USD |
| CY2017 | us-gaap |
Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options
ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions
|
1215000 | USD |
| CY2018 | us-gaap |
Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options
ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions
|
1371000 | USD |
| CY2017 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-1499000 | USD |
| CY2018 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-3078000 | USD |
| CY2016 | us-gaap |
Proceeds From Repayments Of Restricted Cash Financing Activities
ProceedsFromRepaymentsOfRestrictedCashFinancingActivities
|
19001000 | USD |
| CY2016 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-617000 | USD |
| CY2016 | us-gaap |
Proceeds From Lines Of Credit
ProceedsFromLinesOfCredit
|
62075000 | USD |
| CY2017 | us-gaap |
Proceeds From Lines Of Credit
ProceedsFromLinesOfCredit
|
56500000 | USD |
| CY2018 | us-gaap |
Proceeds From Lines Of Credit
ProceedsFromLinesOfCredit
|
76000000 | USD |
| CY2017 | us-gaap |
Proceeds From Repayments Of Restricted Cash Financing Activities
ProceedsFromRepaymentsOfRestrictedCashFinancingActivities
|
0 | USD |
| CY2018 | us-gaap |
Proceeds From Repayments Of Restricted Cash Financing Activities
ProceedsFromRepaymentsOfRestrictedCashFinancingActivities
|
0 | USD |
| CY2018 | us-gaap |
Proceeds From Sale Of Available For Sale Securities Debt
ProceedsFromSaleOfAvailableForSaleSecuritiesDebt
|
4510000 | USD |
| CY2016 | us-gaap |
Proceeds From Sale Of Available For Sale Securities Equity
ProceedsFromSaleOfAvailableForSaleSecuritiesEquity
|
4509000 | USD |
| CY2017 | us-gaap |
Proceeds From Sale Of Available For Sale Securities Equity
ProceedsFromSaleOfAvailableForSaleSecuritiesEquity
|
0 | USD |
| CY2018 | us-gaap |
Proceeds From Sale Of Available For Sale Securities Equity
ProceedsFromSaleOfAvailableForSaleSecuritiesEquity
|
4112000 | USD |
| CY2016 | us-gaap |
Proceeds From Sale Of Other Productive Assets
ProceedsFromSaleOfOtherProductiveAssets
|
0 | USD |
| CY2017 | us-gaap |
Proceeds From Sale Of Other Productive Assets
ProceedsFromSaleOfOtherProductiveAssets
|
28623000 | USD |
| CY2018 | us-gaap |
Proceeds From Sale Of Other Productive Assets
ProceedsFromSaleOfOtherProductiveAssets
|
0 | USD |
| CY2016 | us-gaap |
Proceeds From Sale Of Property Held For Sale
ProceedsFromSaleOfPropertyHeldForSale
|
20341000 | USD |
| CY2017 | us-gaap |
Proceeds From Sale Of Property Held For Sale
ProceedsFromSaleOfPropertyHeldForSale
|
11179000 | USD |
| CY2018 | us-gaap |
Proceeds From Sale Of Property Held For Sale
ProceedsFromSaleOfPropertyHeldForSale
|
0 | USD |
| CY2016 | us-gaap |
Profit Loss
ProfitLoss
|
52839000 | USD |
| CY2017 | us-gaap |
Profit Loss
ProfitLoss
|
61100000 | USD |
| CY2018 | us-gaap |
Profit Loss
ProfitLoss
|
38767000 | USD |
| CY2017Q4 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
1792323000 | USD |
| CY2018Q4 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
1935911000 | USD |
| CY2017Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
45081000 | USD |
| CY2018Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
44009000 | USD |
| CY2018Q1 | us-gaap |
Public Utilities Approved Equity Capital Structure Percentage
PublicUtilitiesApprovedEquityCapitalStructurePercentage
|
0.0764 | |
| CY2017Q4 | us-gaap |
Public Utilities Property Plant And Equipment Accumulated Depreciation
PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation
|
553059000 | USD |
| CY2018Q4 | us-gaap |
Public Utilities Property Plant And Equipment Accumulated Depreciation
PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation
|
607090000 | USD |
| CY2017Q4 | us-gaap |
Public Utilities Property Plant And Equipment Construction Work In Progress
PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress
|
45851000 | USD |
| CY2018Q4 | us-gaap |
Public Utilities Property Plant And Equipment Construction Work In Progress
PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress
|
68765000 | USD |
| CY2016 | us-gaap |
Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service
PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService
|
0.035 | |
| CY2017 | us-gaap |
Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service
PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService
|
0.036 | |
| CY2018 | us-gaap |
Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service
PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService
|
0.036 | |
| CY2017Q4 | us-gaap |
Public Utilities Property Plant And Equipment Equipment
PublicUtilitiesPropertyPlantAndEquipmentEquipment
|
307938000 | USD |
| CY2018Q4 | us-gaap |
Public Utilities Property Plant And Equipment Equipment
PublicUtilitiesPropertyPlantAndEquipmentEquipment
|
335358000 | USD |
| CY2017Q4 | us-gaap |
Public Utilities Property Plant And Equipment Land
PublicUtilitiesPropertyPlantAndEquipmentLand
|
17831000 | USD |
| CY2018Q4 | us-gaap |
Public Utilities Property Plant And Equipment Land
PublicUtilitiesPropertyPlantAndEquipmentLand
|
18296000 | USD |
| CY2017Q4 | us-gaap |
Public Utilities Property Plant And Equipment Net
PublicUtilitiesPropertyPlantAndEquipmentNet
|
1239264000 | USD |
| CY2018Q4 | us-gaap |
Public Utilities Property Plant And Equipment Net
PublicUtilitiesPropertyPlantAndEquipmentNet
|
1328821000 | USD |
| CY2017Q4 | us-gaap |
Public Utilities Property Plant And Equipment Other Property Plant And Equipment
PublicUtilitiesPropertyPlantAndEquipmentOtherPropertyPlantAndEquipment
|
110600000 | USD |
| CY2018Q4 | us-gaap |
Public Utilities Property Plant And Equipment Other Property Plant And Equipment
PublicUtilitiesPropertyPlantAndEquipmentOtherPropertyPlantAndEquipment
|
121872000 | USD |
| CY2017Q4 | us-gaap |
Public Utilities Property Plant And Equipment Plant In Service
PublicUtilitiesPropertyPlantAndEquipmentPlantInService
|
1714228000 | USD |
| CY2018Q4 | us-gaap |
Public Utilities Property Plant And Equipment Plant In Service
PublicUtilitiesPropertyPlantAndEquipmentPlantInService
|
1833051000 | USD |
| CY2017Q4 | us-gaap |
Public Utilities Property Plant And Equipment Transmission And Distribution
PublicUtilitiesPropertyPlantAndEquipmentTransmissionAndDistribution
|
1295690000 | USD |
| CY2018Q4 | us-gaap |
Public Utilities Property Plant And Equipment Transmission And Distribution
PublicUtilitiesPropertyPlantAndEquipmentTransmissionAndDistribution
|
1375821000 | USD |
| CY2017Q2 | us-gaap |
Public Utilities Requested Equity Capital Structure Percentage
PublicUtilitiesRequestedEquityCapitalStructurePercentage
|
0.0809 | |
| CY2017Q4 | us-gaap |
Real Estate Investment Property Accumulated Depreciation
RealEstateInvestmentPropertyAccumulatedDepreciation
|
11132000 | USD |
| CY2018Q4 | us-gaap |
Real Estate Investment Property Accumulated Depreciation
RealEstateInvestmentPropertyAccumulatedDepreciation
|
12327000 | USD |
| CY2017Q4 | us-gaap |
Real Estate Investment Property At Cost
RealEstateInvestmentPropertyAtCost
|
56213000 | USD |
| CY2018Q4 | us-gaap |
Real Estate Investment Property At Cost
RealEstateInvestmentPropertyAtCost
|
56336000 | USD |
| CY2017Q4 | us-gaap |
Receivables Long Term Contracts Or Programs
ReceivablesLongTermContractsOrPrograms
|
27905000 | USD |
| CY2016 | us-gaap |
Realized Investment Gains Losses
RealizedInvestmentGainsLosses
|
-1742000 | USD |
| CY2018Q4 | us-gaap |
Receivables Long Term Contracts Or Programs
ReceivablesLongTermContractsOrPrograms
|
27974000 | USD |
| CY2017Q1 | us-gaap |
Regulated Operating Revenue
RegulatedOperatingRevenue
|
69045000 | USD |
| CY2017Q2 | us-gaap |
Regulated Operating Revenue
RegulatedOperatingRevenue
|
102073000 | USD |
| CY2017Q3 | us-gaap |
Regulated Operating Revenue
RegulatedOperatingRevenue
|
124578000 | USD |
| CY2017Q4 | us-gaap |
Regulated Operating Revenue
RegulatedOperatingRevenue
|
93529000 | USD |
| CY2018Q1 | us-gaap |
Regulated Operating Revenue
RegulatedOperatingRevenue
|
75042000 | USD |
| CY2018Q2 | us-gaap |
Regulated Operating Revenue
RegulatedOperatingRevenue
|
99086000 | USD |
| CY2018Q3 | us-gaap |
Regulated Operating Revenue
RegulatedOperatingRevenue
|
124853000 | USD |
| CY2018Q4 | us-gaap |
Regulated Operating Revenue
RegulatedOperatingRevenue
|
98718000 | USD |
| CY2017Q4 | us-gaap |
Regulatory Assets Current
RegulatoryAssetsCurrent
|
0 | USD |
| CY2018Q4 | us-gaap |
Regulatory Assets Current
RegulatoryAssetsCurrent
|
26910000 | USD |
| CY2017Q4 | us-gaap |
Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
|
99554000 | USD |
| CY2018Q4 | us-gaap |
Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
|
76715000 | USD |
| CY2017Q4 | us-gaap |
Regulatory Liabilities
RegulatoryLiabilities
|
62476000 | USD |
| CY2018Q4 | us-gaap |
Regulatory Liabilities
RegulatoryLiabilities
|
59149000 | USD |
| CY2017Q4 | us-gaap |
Regulatory Liability Noncurrent
RegulatoryLiabilityNoncurrent
|
62476000 | USD |
| CY2018Q4 | us-gaap |
Regulatory Liability Noncurrent
RegulatoryLiabilityNoncurrent
|
59149000 | USD |
| CY2016 | us-gaap |
Repayments Of Advances For Construction
RepaymentsOfAdvancesForConstruction
|
2522000 | USD |
| CY2017 | us-gaap |
Repayments Of Advances For Construction
RepaymentsOfAdvancesForConstruction
|
2622000 | USD |
| CY2018 | us-gaap |
Repayments Of Advances For Construction
RepaymentsOfAdvancesForConstruction
|
2700000 | USD |
| CY2016 | us-gaap |
Repayments Of Lines Of Credit
RepaymentsOfLinesOfCredit
|
82475000 | USD |
| CY2017 | us-gaap |
Repayments Of Lines Of Credit
RepaymentsOfLinesOfCredit
|
45700000 | USD |
| CY2018 | us-gaap |
Repayments Of Lines Of Credit
RepaymentsOfLinesOfCredit
|
1000000 | USD |
| CY2016 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
16599000 | USD |
| CY2017 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
2717000 | USD |
| CY2018 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
0 | USD |
| CY2016Q4 | us-gaap |
Restricted Cash And Cash Equivalents
RestrictedCashAndCashEquivalents
|
19001000 | USD |
| CY2017Q4 | us-gaap |
Restricted Cash And Cash Equivalents
RestrictedCashAndCashEquivalents
|
0 | USD |
| CY2018Q4 | us-gaap |
Restricted Cash And Cash Equivalents
RestrictedCashAndCashEquivalents
|
0 | USD |
| CY2017Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
376119000 | USD |
| CY2018Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
393918000 | USD |
| CY2016 | us-gaap |
Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
|
328249000 | USD |
| CY2017 | us-gaap |
Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
|
381777000 | USD |
| CY2018 | us-gaap |
Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
|
389302000 | USD |
| CY2016 | us-gaap |
Revenues
Revenues
|
339706000 | USD |
| CY2017 | us-gaap |
Revenues
Revenues
|
389225000 | USD |
| CY2018 | us-gaap |
Revenues
Revenues
|
397699000 | USD |
| CY2016 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
1691000 | USD |
| CY2017 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
2643000 | USD |
| CY2018 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
2117000 | USD |
| CY2016 | us-gaap |
Stock Issued During Period Shares Employee Stock Purchase Plans
StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans
|
30214 | shares |
| CY2017 | us-gaap |
Stock Issued During Period Shares Employee Stock Purchase Plans
StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans
|
27743 | shares |
| CY2018 | us-gaap |
Stock Issued During Period Shares Employee Stock Purchase Plans
StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans
|
25907 | shares |
| CY2016 | us-gaap |
Stock Issued During Period Value Employee Stock Purchase Plan
StockIssuedDuringPeriodValueEmployeeStockPurchasePlan
|
954000 | USD |
| CY2017 | us-gaap |
Stock Issued During Period Value Employee Stock Purchase Plan
StockIssuedDuringPeriodValueEmployeeStockPurchasePlan
|
1215000 | USD |
| CY2017 | us-gaap |
Unrealized Gain Loss On Investments
UnrealizedGainLossOnInvestments
|
679000 | USD |
| CY2017 | us-gaap |
Stock Issued During Period Value Share Based Compensation
StockIssuedDuringPeriodValueShareBasedCompensation
|
-707000 | USD |
| CY2018 | us-gaap |
Stock Issued During Period Value Share Based Compensation
StockIssuedDuringPeriodValueShareBasedCompensation
|
-4057000 | USD |
| CY2015Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
383783000 | USD |
| CY2016Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
421646000 | USD |
| CY2018 | us-gaap |
Stock Issued During Period Value Employee Stock Purchase Plan
StockIssuedDuringPeriodValueEmployeeStockPurchasePlan
|
1371000 | USD |
| CY2018 | us-gaap |
Stock Issued During Period Value New Issues
StockIssuedDuringPeriodValueNewIssues
|
411076000 | USD |
| CY2016 | us-gaap |
Stock Issued During Period Value Share Based Compensation
StockIssuedDuringPeriodValueShareBasedCompensation
|
-161000 | USD |
| CY2017Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
463209000 | USD |
| CY2018Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
889312000 | USD |
| CY2017Q4 | us-gaap |
Unamortized Debt Issuance Expense
UnamortizedDebtIssuanceExpense
|
3908000 | USD |
| CY2018Q4 | us-gaap |
Unamortized Debt Issuance Expense
UnamortizedDebtIssuanceExpense
|
3576000 | USD |
| CY2016 | us-gaap |
Unrealized Gain Loss On Investments
UnrealizedGainLossOnInvestments
|
955000 | USD |
| CY2015Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
755000 | USD |
| CY2016Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
1132000 | USD |
| CY2017Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
1307000 | USD |
| CY2018Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
1382000 | USD |
| CY2016 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
|
20000 | USD |
| CY2017 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
|
10000 | USD |
| CY2018 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
|
0 | USD |
| CY2018 | us-gaap |
Unrecognized Tax Benefits Income Tax Penalties And Interest Expense
UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense
|
24000 | USD |
| CY2016 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
|
397000 | USD |
| CY2017 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
|
185000 | USD |
| CY2018 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
|
75000 | USD |
| CY2018Q4 | us-gaap |
Unrecognized Tax Benefits Interest On Income Taxes Accrued
UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued
|
70000 | USD |
| CY2017Q4 | us-gaap |
Unrecognized Tax Benefits That Would Impact Effective Tax Rate
UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
|
46000 | USD |
| CY2018Q4 | us-gaap |
Unrecognized Tax Benefits That Would Impact Effective Tax Rate
UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
|
70000 | USD |
| CY2016 | us-gaap |
Utilities Operating Expense
UtilitiesOperatingExpense
|
242269000 | USD |
| CY2017 | us-gaap |
Utilities Operating Expense
UtilitiesOperatingExpense
|
287374000 | USD |
| CY2018 | us-gaap |
Utilities Operating Expense
UtilitiesOperatingExpense
|
324259000 | USD |
| CY2016 | us-gaap |
Utilities Operating Expense Depreciation And Amortization
UtilitiesOperatingExpenseDepreciationAndAmortization
|
44625000 | USD |
| CY2017 | us-gaap |
Utilities Operating Expense Depreciation And Amortization
UtilitiesOperatingExpenseDepreciationAndAmortization
|
48292000 | USD |
| CY2018 | us-gaap |
Utilities Operating Expense Depreciation And Amortization
UtilitiesOperatingExpenseDepreciationAndAmortization
|
54601000 | USD |
| CY2016 | us-gaap |
Utilities Operating Expense Maintenance
UtilitiesOperatingExpenseMaintenance
|
18361000 | USD |
| CY2017 | us-gaap |
Utilities Operating Expense Maintenance
UtilitiesOperatingExpenseMaintenance
|
18361000 | USD |
| CY2018 | us-gaap |
Utilities Operating Expense Maintenance
UtilitiesOperatingExpenseMaintenance
|
18414000 | USD |
| CY2016 | us-gaap |
Utilities Operating Expense Other
UtilitiesOperatingExpenseOther
|
14470000 | USD |
| CY2017 | us-gaap |
Utilities Operating Expense Other
UtilitiesOperatingExpenseOther
|
16571000 | USD |
| CY2018 | us-gaap |
Utilities Operating Expense Other
UtilitiesOperatingExpenseOther
|
18398000 | USD |
| CY2016 | us-gaap |
Utilities Operating Expense Purchased Power
UtilitiesOperatingExpensePurchasedPower
|
6102000 | USD |
| CY2017 | us-gaap |
Utilities Operating Expense Purchased Power
UtilitiesOperatingExpensePurchasedPower
|
7295000 | USD |
| CY2018 | us-gaap |
Utilities Operating Expense Purchased Power
UtilitiesOperatingExpensePurchasedPower
|
6180000 | USD |
| CY2016 | us-gaap |
Utilities Operating Expense Taxes
UtilitiesOperatingExpenseTaxes
|
12123000 | USD |
| CY2017 | us-gaap |
Utilities Operating Expense Taxes
UtilitiesOperatingExpenseTaxes
|
13642000 | USD |
| CY2018 | us-gaap |
Utilities Operating Expense Taxes
UtilitiesOperatingExpenseTaxes
|
14975000 | USD |
| CY2017 | us-gaap |
Water Production Costs
WaterProductionCosts
|
158139000 | USD |
| CY2018 | us-gaap |
Water Production Costs
WaterProductionCosts
|
168726000 | USD |
| CY2016 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
20588973 | shares |
| CY2017 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
20685118 | shares |
| CY2018 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
21332387 | shares |
| CY2016 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
20439957 | shares |
| CY2017 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
20506960 | shares |
| CY2018 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
21214277 | shares |
| CY2018 | us-gaap |
Use Of Estimates
UseOfEstimates
|
<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-top:8px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The preparation of the consolidated financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.</font></div></div> |
