2017 Q4 Form 10-K Financial Statement
#000173399819000004 Filed on March 01, 2019
Income Statement
Concept | 2017 Q4 | 2017 Q3 | 2017 Q2 |
---|---|---|---|
Revenue | $238.6M | $86.21M | $134.5M |
YoY Change | 2.2% | -1.7% | 35.56% |
Cost Of Revenue | $92.10M | $28.20M | $53.30M |
YoY Change | 77.12% | -3.75% | 300.75% |
Gross Profit | $146.5M | $58.00M | $81.20M |
YoY Change | -19.28% | -0.68% | -5.47% |
Gross Profit Margin | 61.39% | 67.28% | 60.38% |
Selling, General & Admin | |||
YoY Change | |||
% of Gross Profit | |||
Research & Development | |||
YoY Change | |||
% of Gross Profit | |||
Depreciation & Amortization | $17.20M | $23.70M | $19.10M |
YoY Change | -17.7% | 15.05% | -6.37% |
% of Gross Profit | 11.74% | 40.86% | 23.52% |
Operating Expenses | $77.80M | $63.60M | $65.00M |
YoY Change | 5.85% | -0.47% | -1.07% |
Operating Profit | $68.70M | -$5.600M | $16.20M |
YoY Change | -36.39% | 1.82% | -19.8% |
Interest Expense | -$18.00M | -$8.200M | -$9.200M |
YoY Change | -70.44% | -5.75% | -46.82% |
% of Operating Profit | -26.2% | -56.79% | |
Other Income/Expense, Net | $300.0K | $100.0K | -$300.0K |
YoY Change | -50.0% | -85.71% | -160.0% |
Pretax Income | $51.00M | -$13.60M | $6.600M |
YoY Change | 6.92% | 0.74% | 94.12% |
Income Tax | $19.90M | -$5.700M | $2.500M |
% Of Pretax Income | 39.02% | 37.88% | |
Net Earnings | -$90.17M | -$8.495M | $2.729M |
YoY Change | -418.61% | 6.19% | 36.45% |
Net Earnings / Revenue | -37.79% | -9.85% | 2.03% |
Basic Earnings Per Share | -$3.14 | -$0.30 | $0.10 |
Diluted Earnings Per Share | -$3.13 | -$0.30 | $0.10 |
COMMON SHARES | |||
Basic Shares Outstanding | 28.72M shares | 28.68M shares | 28.65M shares |
Diluted Shares Outstanding | 28.80M shares | 28.68M shares | 28.72M shares |
Balance Sheet
Concept | 2017 Q4 | 2017 Q3 | 2017 Q2 |
---|---|---|---|
SHORT-TERM ASSETS | |||
Cash & Short-Term Investments | $3.500M | $15.80M | $20.90M |
YoY Change | 0.0% | 154.84% | 280.0% |
Cash & Equivalents | $3.472M | $15.80M | $20.90M |
Short-Term Investments | |||
Other Short-Term Assets | $24.95M | $85.00M | $66.30M |
YoY Change | -83.27% | -8.8% | -27.86% |
Inventory | $63.30M | $75.80M | $73.70M |
Prepaid Expenses | |||
Receivables | $65.30M | $23.00M | $31.10M |
Other Receivables | $0.00 | $0.00 | $0.00 |
Total Short-Term Assets | $269.9M | $199.5M | $192.0M |
YoY Change | -6.3% | -5.27% | -5.0% |
LONG-TERM ASSETS | |||
Property, Plant & Equipment | $2.244B | $2.398B | $2.361B |
YoY Change | -0.74% | 7.34% | 6.6% |
Goodwill | $0.00 | ||
YoY Change | |||
Intangibles | |||
YoY Change | |||
Long-Term Investments | $13.67M | $69.20M | $68.90M |
YoY Change | -80.02% | 1.91% | 1.47% |
Other Assets | $6.505M | $439.0M | $443.7M |
YoY Change | -98.59% | -1.92% | -3.29% |
Total Long-Term Assets | $2.770B | $2.906B | $2.873B |
YoY Change | -0.78% | 5.7% | 4.82% |
TOTAL ASSETS | |||
Total Short-Term Assets | $269.9M | $199.5M | $192.0M |
Total Long-Term Assets | $2.770B | $2.906B | $2.873B |
Total Assets | $3.040B | $3.106B | $3.065B |
YoY Change | -1.3% | 4.92% | 4.15% |
SHORT-TERM LIABILITIES | |||
YoY Change | |||
Accounts Payable | $111.0M | $87.50M | $95.80M |
YoY Change | 29.55% | 56.53% | 65.74% |
Accrued Expenses | $6.800M | $9.900M | $6.000M |
YoY Change | 13.33% | 2.06% | 3.45% |
Deferred Revenue | |||
YoY Change | |||
Short-Term Debt | $54.20M | $0.00 | $0.00 |
YoY Change | 1.69% | -100.0% | -100.0% |
Long-Term Debt Due | $96.70M | $22.00M | $62.00M |
YoY Change | 141.76% | -66.15% | 148.0% |
Total Short-Term Liabilities | $381.9M | $203.0M | $235.1M |
YoY Change | 39.11% | -49.59% | -25.03% |
LONG-TERM LIABILITIES | |||
Long-Term Debt | $683.2M | $757.4M | $658.1M |
YoY Change | 0.57% | 42.85% | 15.46% |
Other Long-Term Liabilities | $135.3M | $726.3M | $729.3M |
YoY Change | -81.17% | 3.28% | 3.43% |
Total Long-Term Liabilities | $818.5M | $1.484B | $1.387B |
YoY Change | -41.44% | 20.29% | 8.81% |
TOTAL LIABILITIES | |||
Total Short-Term Liabilities | $381.9M | $203.0M | $235.1M |
Total Long-Term Liabilities | $818.5M | $1.484B | $1.387B |
Total Liabilities | $1.200B | $2.259B | $2.200B |
YoY Change | -46.16% | 3.59% | 2.64% |
SHAREHOLDERS EQUITY | |||
Retained Earnings | $302.3M | ||
YoY Change | |||
Common Stock | $448.9M | ||
YoY Change | |||
Preferred Stock | |||
YoY Change | |||
Treasury Stock (at cost) | |||
YoY Change | |||
Treasury Stock Shares | |||
Shareholders Equity | $742.8M | $846.7M | $865.4M |
YoY Change | |||
Total Liabilities & Shareholders Equity | $3.040B | $3.106B | $3.065B |
YoY Change | -1.3% | 4.92% | 4.15% |
Cashflow Statement
Concept | 2017 Q4 | 2017 Q3 | 2017 Q2 |
---|---|---|---|
OPERATING ACTIVITIES | |||
Net Income | -$90.17M | -$8.495M | $2.729M |
YoY Change | -418.61% | 6.19% | 36.45% |
Depreciation, Depletion And Amortization | $17.20M | $23.70M | $19.10M |
YoY Change | -17.7% | 15.05% | -6.37% |
Cash From Operating Activities | $13.80M | -$1.300M | $49.00M |
YoY Change | -12.1% | -119.12% | -8.41% |
INVESTING ACTIVITIES | |||
Capital Expenditures | -$67.90M | -$51.10M | -$55.40M |
YoY Change | 64.01% | 42.34% | 72.59% |
Acquisitions | |||
YoY Change | |||
Other Investing Activities | $300.0K | -$700.0K | -$500.0K |
YoY Change | -275.0% | -120.0% | |
Cash From Investing Activities | -$67.60M | -$51.90M | -$55.90M |
YoY Change | 63.29% | 46.2% | 88.22% |
FINANCING ACTIVITIES | |||
Cash Dividend Paid | |||
YoY Change | |||
Common Stock Issuance & Retirement, Net | |||
YoY Change | |||
Debt Paid & Issued, Net | |||
YoY Change | |||
Cash From Financing Activities | 41.40M | 48.20M | -13.00M |
YoY Change | 80.79% | 63.39% | -42.48% |
NET CHANGE | |||
Cash From Operating Activities | 13.80M | -1.300M | 49.00M |
Cash From Investing Activities | -67.60M | -51.90M | -55.90M |
Cash From Financing Activities | 41.40M | 48.20M | -13.00M |
Net Change In Cash | -12.40M | -5.000M | -19.90M |
YoY Change | 342.86% | -725.0% | -1758.33% |
FREE CASH FLOW | |||
Cash From Operating Activities | $13.80M | -$1.300M | $49.00M |
Capital Expenditures | -$67.90M | -$51.10M | -$55.40M |
Free Cash Flow | $81.70M | $49.80M | $104.4M |
YoY Change | 43.08% | 16.63% | 21.96% |
Facts In Submission
Frame | Concept Type | Concept / XBRL Key | Value | Unit |
---|---|---|---|---|
CY2017 | nwn |
Deferred Tax Rate Differential Post Tcja
DeferredTaxRateDifferentialPostTCJA
|
0 | USD |
CY2018 | nwn |
Deferred Tax Rate Differential Post Tcja
DeferredTaxRateDifferentialPostTCJA
|
-76000 | USD |
CY2016 | nwn |
Differences Regulatory Commission
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|
2357000 | USD |
CY2017 | nwn |
Differences Regulatory Commission
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2357000 | USD |
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Amendment Flag
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FY | |
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Document Fiscal Year Focus
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2018 | |
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Document Period End Date
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2018-12-31 | |
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Document Type
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10-K | |
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Entity Common Stock Shares Outstanding
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Entity Current Reporting Status
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Entity Emerging Growth Company
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Entity Public Float
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Entity Registrant Name
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NORTHWEST NATURAL HOLDING COMPANY | |
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Entity Small Business
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Entity Voluntary Filers
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Longterm Debt Excluding Current Maturities Gross
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Paymentsforthe Repurchaseof Common Stock Relatedto Acquisitions
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Paymentsforthe Repurchaseof Common Stock Relatedto Acquisitions
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Paymentsforthe Repurchaseof Common Stock Relatedto Acquisitions
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Paymentsforthe Repurchaseof Common Stock Relatedto Acquisitions Netof Fees
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Weighted Average Depreciation Rates General Plant
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0.045 | |
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Weighted Average Depreciation Rates Intangible Other
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0.031 | |
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Weighted Average Depreciation Rates Transmission Distribution
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0.027 | |
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Weighted Average Depreciation Rates Utility Storage
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Business Combination Control Obtained Description
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|
Through the purchase of all of the outstanding shares of Falls Water, NWN Water acquired the net assets and 100% control of Falls Water. | |
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Capital Lease Obligations Incurred
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Capital Lease Obligations Incurred
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Comprehensive Income Net Of Tax
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Current Income Tax Expense Benefit
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Current State And Local Tax Expense Benefit
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Current State And Local Tax Expense Benefit
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Current State And Local Tax Expense Benefit
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|
3785000 | USD |
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Debt Instrument Carrying Amount
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Debt Instrument Carrying Amount
DebtInstrumentCarryingAmount
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741813000 | USD |
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Deferred Federal Income Tax Expense Benefit
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|
13869000 | USD |
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Deferred Federal Income Tax Expense Benefit
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|
9001000 | USD |
CY2018 | us-gaap |
Depreciation And Amortization
DepreciationAndAmortization
|
85156000 | USD |
CY2017Q4 | us-gaap |
Deferred Gas Cost
DeferredGasCost
|
15704000 | USD |
CY2018Q4 | us-gaap |
Deferred Gas Cost
DeferredGasCost
|
16647000 | USD |
CY2016 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
29853000 | USD |
CY2017 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
15700000 | USD |
CY2018 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
11453000 | USD |
CY2017Q4 | us-gaap |
Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
|
327062000 | USD |
CY2018Q4 | us-gaap |
Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
|
337984000 | USD |
CY2017Q4 | us-gaap |
Derivative Assets Current
DerivativeAssetsCurrent
|
1735000 | USD |
CY2016 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
25473000 | USD |
CY2016 | us-gaap |
Deferred Income Taxes And Tax Credits
DeferredIncomeTaxesAndTaxCredits
|
32056000 | USD |
CY2017 | us-gaap |
Deferred Income Taxes And Tax Credits
DeferredIncomeTaxesAndTaxCredits
|
-52414000 | USD |
CY2018 | us-gaap |
Deferred Income Taxes And Tax Credits
DeferredIncomeTaxesAndTaxCredits
|
14356000 | USD |
CY2016 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
|
4380000 | USD |
CY2017 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
|
1831000 | USD |
CY2018 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
|
2452000 | USD |
CY2017Q4 | us-gaap |
Deferred Tax Assets Net
DeferredTaxAssetsNet
|
56536000 | USD |
CY2018Q4 | us-gaap |
Deferred Tax Assets Net
DeferredTaxAssetsNet
|
57521000 | USD |
CY2017Q4 | us-gaap |
Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax
DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax
|
66000 | USD |
CY2018Q4 | us-gaap |
Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax
DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax
|
52000 | USD |
CY2017Q4 | us-gaap |
Deferred Tax Liabilities
DeferredTaxLiabilities
|
270526000 | USD |
CY2018Q4 | us-gaap |
Deferred Tax Liabilities
DeferredTaxLiabilities
|
280463000 | USD |
CY2017Q4 | us-gaap |
Deferred Tax Liabilities Noncurrent
DeferredTaxLiabilitiesNoncurrent
|
270526000 | USD |
CY2018Q4 | us-gaap |
Deferred Tax Liabilities Noncurrent
DeferredTaxLiabilitiesNoncurrent
|
280463000 | USD |
CY2017Q4 | us-gaap |
Deferred Tax Liabilities Other
DeferredTaxLiabilitiesOther
|
2766000 | USD |
CY2018Q4 | us-gaap |
Deferred Tax Liabilities Other
DeferredTaxLiabilitiesOther
|
1061000 | USD |
CY2017Q4 | us-gaap |
Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
|
278735000 | USD |
CY2018Q4 | us-gaap |
Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
|
288385000 | USD |
CY2018 | us-gaap |
Defined Benefit Plan Effect Of One Percentage Point Decrease On Accumulated Postretirement Benefit Obligation1
DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation1
|
560000 | USD |
CY2018 | us-gaap |
Defined Benefit Plan Effect Of One Percentage Point Decrease On Service And Interest Cost Components1
DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnServiceAndInterestCostComponents1
|
39000 | USD |
CY2018 | us-gaap |
Defined Benefit Plan Effect Of One Percentage Point Increase On Accumulated Postretirement Benefit Obligation
DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation
|
622000 | USD |
CY2018 | us-gaap |
Defined Benefit Plan Effect Of One Percentage Point Increase On Service And Interest Cost Components
DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents
|
43000 | USD |
CY2018Q4 | us-gaap |
Defined Benefit Plan Health Care Cost Trend Rate Assumed Next Fiscal Year
DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYear
|
0.0675 | |
CY2018Q4 | us-gaap |
Defined Benefit Plan Ultimate Health Care Cost Trend Rate1
DefinedBenefitPlanUltimateHealthCareCostTrendRate1
|
0.0475 | |
CY2018 | us-gaap |
Defined Benefit Plan Year Health Care Cost Trend Rate Reaches Ultimate Trend Rate
DefinedBenefitPlanYearHealthCareCostTrendRateReachesUltimateTrendRate
|
2025 | |
CY2016 | us-gaap |
Depreciation And Amortization
DepreciationAndAmortization
|
77604000 | USD |
CY2017 | us-gaap |
Depreciation And Amortization
DepreciationAndAmortization
|
81053000 | USD |
CY2018Q4 | us-gaap |
Derivative Assets Current
DerivativeAssetsCurrent
|
9001000 | USD |
CY2017Q4 | us-gaap |
Derivative Assets Noncurrent
DerivativeAssetsNoncurrent
|
1306000 | USD |
CY2018Q4 | us-gaap |
Derivative Assets Noncurrent
DerivativeAssetsNoncurrent
|
725000 | USD |
CY2017Q4 | us-gaap |
Derivative Fair Value Of Derivative Net
DerivativeFairValueOfDerivativeNet
|
20300000 | USD |
CY2018Q4 | us-gaap |
Derivative Fair Value Of Derivative Net
DerivativeFairValueOfDerivativeNet
|
-5700000 | USD |
CY2017Q4 | us-gaap |
Derivative Liabilities Current
DerivativeLiabilitiesCurrent
|
18722000 | USD |
CY2017Q3 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare
|
-0.02 | |
CY2017Q4 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare
|
-4.34 | |
CY2016 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
2.12 | |
CY2017Q1 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
1.40 | |
CY2018Q4 | us-gaap |
Derivative Liabilities Current
DerivativeLiabilitiesCurrent
|
12381000 | USD |
CY2017Q4 | us-gaap |
Derivative Liabilities Noncurrent
DerivativeLiabilitiesNoncurrent
|
4649000 | USD |
CY2018Q4 | us-gaap |
Derivative Liabilities Noncurrent
DerivativeLiabilitiesNoncurrent
|
3025000 | USD |
CY2017 | us-gaap |
Derivative Loss On Derivative
DerivativeLossOnDerivative
|
7800000 | USD |
CY2018 | us-gaap |
Derivative Loss On Derivative
DerivativeLossOnDerivative
|
7400000 | USD |
CY2016 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare
|
-0.13 | |
CY2017Q1 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare
|
-0.04 | |
CY2017Q2 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare
|
-0.04 | |
CY2017 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare
|
-4.45 | |
CY2018Q1 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare
|
-0.02 | |
CY2018Q2 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare
|
-0.02 | |
CY2018Q3 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare
|
-0.02 | |
CY2018Q4 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare
|
-0.03 | |
CY2018 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare
|
-0.10 | |
CY2016 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
|
-0.13 | |
CY2017Q1 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
|
-0.04 | |
CY2017Q2 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
|
-0.04 | |
CY2017Q3 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
|
-0.02 | |
CY2017Q4 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
|
-4.33 | |
CY2017 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
|
-4.44 | |
CY2018Q1 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
|
-0.02 | |
CY2018Q2 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
|
-0.02 | |
CY2018Q3 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
|
-0.02 | |
CY2018Q4 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
|
-0.03 | |
CY2018 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
|
-0.09 | |
CY2016Q4 | us-gaap |
Disposal Group Including Discontinued Operation Assets Noncurrent
DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent
|
210400000 | USD |
CY2017Q4 | us-gaap |
Disposal Group Including Discontinued Operation Assets Noncurrent
DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent
|
10817000 | USD |
CY2018Q4 | us-gaap |
Disposal Group Including Discontinued Operation Assets Noncurrent
DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent
|
0 | USD |
CY2016 | us-gaap |
Dividends Common Stock Cash
DividendsCommonStockCash
|
51624000 | USD |
CY2017 | us-gaap |
Dividends Common Stock Cash
DividendsCommonStockCash
|
54289000 | USD |
CY2018 | us-gaap |
Dividends Common Stock Cash
DividendsCommonStockCash
|
54736000 | USD |
CY2016 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
2.13 | |
CY2017Q1 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
1.41 | |
CY2017Q2 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.10 | |
CY2017Q3 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-0.30 | |
CY2017Q4 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-3.14 | |
CY2017 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-1.94 | |
CY2018Q1 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
1.44 | |
CY2018Q2 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-0.03 | |
CY2018Q3 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-0.41 | |
CY2018Q4 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
1.24 | |
CY2018 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
2.24 | |
us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.35 | ||
CY2017Q2 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.10 | |
CY2017Q3 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-0.30 | |
CY2017Q4 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-3.13 | |
CY2017 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-1.93 | |
CY2018Q1 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
1.44 | |
CY2018Q2 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-0.03 | |
CY2018Q3 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-0.41 | |
CY2018Q4 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
1.24 | |
CY2018 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
2.24 | |
CY2016 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.408 | |
CY2017 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.363 | |
CY2018 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.264 | |
CY2017Q4 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.21 | |
CY2016 | us-gaap |
Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount
EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount
|
554000 | USD |
CY2017 | us-gaap |
Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount
EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount
|
528000 | USD |
CY2018 | us-gaap |
Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount
EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount
|
531000 | USD |
CY2016 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
|
924000 | USD |
CY2017 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
|
930000 | USD |
CY2018 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
|
-659000 | USD |
CY2016 | us-gaap |
Environmental Expense And Liabilities
EnvironmentalExpenseAndLiabilities
|
3287000 | USD |
CY2017 | us-gaap |
Environmental Expense And Liabilities
EnvironmentalExpenseAndLiabilities
|
0 | USD |
CY2018 | us-gaap |
Environmental Expense And Liabilities
EnvironmentalExpenseAndLiabilities
|
0 | USD |
CY2016 | us-gaap |
Environmental Remediation Expense
EnvironmentalRemediationExpense
|
13298000 | USD |
CY2017 | us-gaap |
Environmental Remediation Expense
EnvironmentalRemediationExpense
|
15291000 | USD |
CY2018 | us-gaap |
Environmental Remediation Expense
EnvironmentalRemediationExpense
|
11127000 | USD |
CY2017Q4 | us-gaap |
Equity Method Investments
EquityMethodInvestments
|
13669000 | USD |
CY2018Q4 | us-gaap |
Equity Method Investments
EquityMethodInvestments
|
13571000 | USD |
CY2016 | us-gaap |
Excise And Sales Taxes
ExciseAndSalesTaxes
|
0 | USD |
CY2017 | us-gaap |
Excise And Sales Taxes
ExciseAndSalesTaxes
|
0 | USD |
CY2018 | us-gaap |
Excise And Sales Taxes
ExciseAndSalesTaxes
|
30082000 | USD |
CY2017Q4 | us-gaap |
Goodwill
Goodwill
|
0 | USD |
CY2018Q4 | us-gaap |
Goodwill
Goodwill
|
8954000 | USD |
CY2018Q4 | us-gaap |
Goodwill And Intangible Asset Impairment
GoodwillAndIntangibleAssetImpairment
|
0 | USD |
CY2016 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
62419000 | USD |
CY2017Q1 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
41397000 | USD |
CY2017Q2 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
4075000 | USD |
CY2017Q3 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
-7887000 | USD |
CY2017Q4 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
34488000 | USD |
CY2017 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
72073000 | USD |
CY2018Q1 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
42011000 | USD |
CY2018Q2 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
-339000 | USD |
CY2018Q3 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
-11144000 | USD |
CY2018Q4 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
36783000 | USD |
CY2018 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
67311000 | USD |
CY2016 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
105430000 | USD |
CY2017 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
113081000 | USD |
CY2018 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
91502000 | USD |
CY2016 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
2.26 | |
CY2017Q1 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
1.45 | |
CY2017Q2 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
0.14 | |
CY2017Q3 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
-0.28 | |
CY2017Q4 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
1.20 | |
CY2017 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
2.51 | |
CY2018Q1 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
1.46 | |
CY2018Q2 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
-0.01 | |
CY2018Q3 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
-0.39 | |
CY2018Q4 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
1.27 | |
CY2018 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
2.34 | |
CY2016 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
2.25 | |
CY2017Q1 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
1.44 | |
CY2017Q2 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
0.14 | |
CY2017Q3 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
-0.28 | |
CY2017Q4 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
1.20 | |
CY2017 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
2.51 | |
CY2018Q1 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
1.46 | |
CY2018Q2 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
-0.01 | |
CY2018Q3 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
-0.39 | |
CY2018Q4 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
1.27 | |
CY2018 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
2.33 | |
CY2016 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
|
-3524000 | USD |
CY2017Q1 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
|
-1087000 | USD |
CY2017Q2 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
|
-1346000 | USD |
CY2017Q3 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
|
-608000 | USD |
CY2017Q4 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
|
-124655000 | USD |
CY2017 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
|
-127696000 | USD |
CY2018Q1 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
|
-474000 | USD |
CY2018Q2 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
|
-659000 | USD |
CY2018Q3 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
|
-650000 | USD |
CY2018Q4 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
|
-959000 | USD |
CY2018 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
|
-2742000 | USD |
CY2016 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
43011000 | USD |
CY2017 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
41008000 | USD |
CY2018 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
24191000 | USD |
CY2016 | us-gaap |
Income Tax Expense Benefit Continuing Operations Adjustment Of Deferred Tax Asset Liability
IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability
|
0 | USD |
CY2017 | us-gaap |
Income Tax Expense Benefit Continuing Operations Adjustment Of Deferred Tax Asset Liability
IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability
|
-3376000 | USD |
CY2018 | us-gaap |
Income Tax Expense Benefit Continuing Operations Adjustment Of Deferred Tax Asset Liability
IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability
|
0 | USD |
CY2016 | us-gaap |
Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
|
36901000 | USD |
CY2017 | us-gaap |
Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
|
39578000 | USD |
CY2018 | us-gaap |
Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
|
19222000 | USD |
CY2016 | us-gaap |
Income Tax Reconciliation Other Adjustments
IncomeTaxReconciliationOtherAdjustments
|
-1091000 | USD |
CY2017 | us-gaap |
Income Tax Reconciliation Other Adjustments
IncomeTaxReconciliationOtherAdjustments
|
-2617000 | USD |
CY2018 | us-gaap |
Income Tax Reconciliation Other Adjustments
IncomeTaxReconciliationOtherAdjustments
|
-1184000 | USD |
CY2016 | us-gaap |
Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
|
4844000 | USD |
CY2017 | us-gaap |
Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
|
5066000 | USD |
CY2018 | us-gaap |
Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
|
4927000 | USD |
CY2016 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
-7157000 | USD |
CY2017 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
14780000 | USD |
CY2018 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
27370000 | USD |
CY2017Q4 | us-gaap |
Income Taxes Receivable
IncomeTaxesReceivable
|
0 | USD |
CY2018Q4 | us-gaap |
Income Taxes Receivable
IncomeTaxesReceivable
|
6000000 | USD |
CY2016 | us-gaap |
Increase Decrease In Accounts And Other Receivables
IncreaseDecreaseInAccountsAndOtherReceivables
|
6395000 | USD |
CY2017 | us-gaap |
Increase Decrease In Accounts And Other Receivables
IncreaseDecreaseInAccountsAndOtherReceivables
|
-3282000 | USD |
CY2018 | us-gaap |
Increase Decrease In Accounts And Other Receivables
IncreaseDecreaseInAccountsAndOtherReceivables
|
-181000 | USD |
CY2016 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
12028000 | USD |
CY2017 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
1092000 | USD |
CY2018 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
16792000 | USD |
CY2016 | us-gaap |
Increase Decrease In Accrued Taxes Payable
IncreaseDecreaseInAccruedTaxesPayable
|
9467000 | USD |
CY2017 | us-gaap |
Increase Decrease In Accrued Taxes Payable
IncreaseDecreaseInAccruedTaxesPayable
|
6734000 | USD |
CY2018 | us-gaap |
Increase Decrease In Accrued Taxes Payable
IncreaseDecreaseInAccruedTaxesPayable
|
-16904000 | USD |
CY2016 | us-gaap |
Increase Decrease In Deferred Gas Cost
IncreaseDecreaseInDeferredGasCost
|
10204000 | USD |
CY2017 | us-gaap |
Increase Decrease In Deferred Gas Cost
IncreaseDecreaseInDeferredGasCost
|
-17122000 | USD |
CY2018 | us-gaap |
Increase Decrease In Deferred Gas Cost
IncreaseDecreaseInDeferredGasCost
|
14395000 | USD |
CY2016 | us-gaap |
Increase Decrease In Interest Payable Net
IncreaseDecreaseInInterestPayableNet
|
93000 | USD |
CY2017 | us-gaap |
Increase Decrease In Interest Payable Net
IncreaseDecreaseInInterestPayableNet
|
807000 | USD |
CY2018 | us-gaap |
Increase Decrease In Interest Payable Net
IncreaseDecreaseInInterestPayableNet
|
526000 | USD |
CY2016 | us-gaap |
Increase Decrease In Inventories
IncreaseDecreaseInInventories
|
-16565000 | USD |
CY2017 | us-gaap |
Increase Decrease In Inventories
IncreaseDecreaseInInventories
|
-5600000 | USD |
CY2018 | us-gaap |
Increase Decrease In Inventories
IncreaseDecreaseInInventories
|
-3207000 | USD |
CY2016 | us-gaap |
Increase Decrease In Other Operating Capital Net
IncreaseDecreaseInOtherOperatingCapitalNet
|
-11727000 | USD |
CY2017 | us-gaap |
Increase Decrease In Other Operating Capital Net
IncreaseDecreaseInOtherOperatingCapitalNet
|
4093000 | USD |
CY2018 | us-gaap |
Increase Decrease In Other Operating Capital Net
IncreaseDecreaseInOtherOperatingCapitalNet
|
-552000 | USD |
CY2016 | us-gaap |
Increase Decrease In Regulatory Liabilities
IncreaseDecreaseInRegulatoryLiabilities
|
0 | USD |
CY2017 | us-gaap |
Increase Decrease In Regulatory Liabilities
IncreaseDecreaseInRegulatoryLiabilities
|
0 | USD |
CY2018 | us-gaap |
Increase Decrease In Regulatory Liabilities
IncreaseDecreaseInRegulatoryLiabilities
|
7929000 | USD |
CY2016 | us-gaap |
Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
|
132000 | shares |
CY2017 | us-gaap |
Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
|
84000 | shares |
CY2018 | us-gaap |
Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
|
70000 | shares |
CY2016 | us-gaap |
Interest Income Expense Nonoperating Net
InterestIncomeExpenseNonoperatingNet
|
-38136000 | USD |
CY2017 | us-gaap |
Interest Income Expense Nonoperating Net
InterestIncomeExpenseNonoperatingNet
|
-37526000 | USD |
CY2018 | us-gaap |
Interest Income Expense Nonoperating Net
InterestIncomeExpenseNonoperatingNet
|
-37059000 | USD |
CY2016 | us-gaap |
Interest Paid
InterestPaid
|
36023000 | USD |
CY2017 | us-gaap |
Interest Paid
InterestPaid
|
34787000 | USD |
CY2018 | us-gaap |
Interest Paid
InterestPaid
|
35324000 | USD |
CY2017Q4 | us-gaap |
Interest Payable Current
InterestPayableCurrent
|
6773000 | USD |
CY2018Q4 | us-gaap |
Interest Payable Current
InterestPayableCurrent
|
7306000 | USD |
CY2017Q4 | us-gaap |
Inventory Gas In Storage Underground Noncurrent
InventoryGasInStorageUndergroundNoncurrent
|
84053000 | USD |
CY2018Q4 | us-gaap |
Inventory Gas In Storage Underground Noncurrent
InventoryGasInStorageUndergroundNoncurrent
|
66197000 | USD |
CY2017Q4 | us-gaap |
Inventory Raw Materials And Supplies Net Of Reserves
InventoryRawMaterialsAndSuppliesNetOfReserves
|
10900000 | USD |
CY2018Q4 | us-gaap |
Inventory Raw Materials And Supplies Net Of Reserves
InventoryRawMaterialsAndSuppliesNetOfReserves
|
14200000 | USD |
CY2018Q4 | us-gaap |
Letters Of Credit Outstanding Amount
LettersOfCreditOutstandingAmount
|
2800000 | USD |
CY2017Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
3039746000 | USD |
CY2018Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
3242662000 | USD |
CY2017Q4 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
381850000 | USD |
CY2018Q4 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
509084000 | USD |
CY2017Q4 | us-gaap |
Liabilities Of Disposal Group Including Discontinued Operation Current
LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent
|
1593000 | USD |
CY2018Q4 | us-gaap |
Liabilities Of Disposal Group Including Discontinued Operation Current
LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent
|
12959000 | USD |
CY2017Q4 | us-gaap |
Liabilities Of Disposal Group Including Discontinued Operation Noncurrent
LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent
|
12043000 | USD |
CY2018Q4 | us-gaap |
Liabilities Of Disposal Group Including Discontinued Operation Noncurrent
LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent
|
0 | USD |
CY2017Q4 | us-gaap |
Life Insurance Corporate Or Bank Owned Amount
LifeInsuranceCorporateOrBankOwnedAmount
|
50792000 | USD |
CY2018Q4 | us-gaap |
Life Insurance Corporate Or Bank Owned Amount
LifeInsuranceCorporateOrBankOwnedAmount
|
49922000 | USD |
CY2017Q4 | us-gaap |
Long Term Debt Current
LongTermDebtCurrent
|
96703000 | USD |
CY2018Q4 | us-gaap |
Long Term Debt Current
LongTermDebtCurrent
|
29989000 | USD |
CY2017Q4 | us-gaap |
Long Term Debt Noncurrent
LongTermDebtNoncurrent
|
683184000 | USD |
CY2018Q4 | us-gaap |
Long Term Debt Noncurrent
LongTermDebtNoncurrent
|
706247000 | USD |
CY2016 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
-86208000 | USD |
CY2017 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
7419000 | USD |
CY2018 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
57843000 | USD |
CY2016 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-136629000 | USD |
CY2017 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-214172000 | USD |
CY2018 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-217453000 | USD |
CY2016 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
222147000 | USD |
CY2017 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
206704000 | USD |
CY2018 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
168771000 | USD |
CY2016 | us-gaap |
Net Income Loss
NetIncomeLoss
|
58895000 | USD |
CY2017Q1 | us-gaap |
Net Income Loss
NetIncomeLoss
|
40310000 | USD |
CY2017Q2 | us-gaap |
Net Income Loss
NetIncomeLoss
|
2729000 | USD |
CY2017Q3 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-8495000 | USD |
CY2017Q4 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-90167000 | USD |
CY2017 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-55623000 | USD |
CY2018Q1 | us-gaap |
Net Income Loss
NetIncomeLoss
|
41537000 | USD |
CY2018Q2 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-998000 | USD |
CY2018Q3 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-11794000 | USD |
CY2018Q4 | us-gaap |
Net Income Loss
NetIncomeLoss
|
35824000 | USD |
CY2018 | us-gaap |
Net Income Loss
NetIncomeLoss
|
64569000 | USD |
CY2016 | us-gaap |
Operating Costs And Expenses
OperatingCostsAndExpenses
|
136723000 | USD |
CY2017 | us-gaap |
Operating Costs And Expenses
OperatingCostsAndExpenses
|
152358000 | USD |
CY2018 | us-gaap |
Operating Costs And Expenses
OperatingCostsAndExpenses
|
156698000 | USD |
CY2016 | us-gaap |
Operating Expenses
OperatingExpenses
|
517456000 | USD |
CY2017 | us-gaap |
Operating Expenses
OperatingExpenses
|
604136000 | USD |
CY2018 | us-gaap |
Operating Expenses
OperatingExpenses
|
573981000 | USD |
CY2018 | us-gaap |
Operating Expenses
OperatingExpenses
|
574000000 | USD |
CY2016 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
150717000 | USD |
CY2017 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
150902000 | USD |
CY2018 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
132162000 | USD |
CY2016 | us-gaap |
Operating Leases Rent Expense Minimum Rentals
OperatingLeasesRentExpenseMinimumRentals
|
5900000 | USD |
CY2017 | us-gaap |
Operating Leases Rent Expense Minimum Rentals
OperatingLeasesRentExpenseMinimumRentals
|
7300000 | USD |
CY2018 | us-gaap |
Operating Leases Rent Expense Minimum Rentals
OperatingLeasesRentExpenseMinimumRentals
|
5900000 | USD |
CY2017Q4 | us-gaap |
Other Assets Current
OtherAssetsCurrent
|
24949000 | USD |
CY2018Q4 | us-gaap |
Other Assets Current
OtherAssetsCurrent
|
28472000 | USD |
CY2017Q4 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
6505000 | USD |
CY2018Q4 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
14149000 | USD |
CY2016 | us-gaap |
Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax
|
-744000 | USD |
CY2017 | us-gaap |
Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax
|
-2059000 | USD |
CY2018 | us-gaap |
Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax
|
476000 | USD |
CY2016 | us-gaap |
Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax
|
452000 | USD |
CY2017 | us-gaap |
Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax
|
735000 | USD |
CY2018 | us-gaap |
Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax
|
-166000 | USD |
CY2016 | us-gaap |
Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax
OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax
|
-624000 | USD |
CY2017 | us-gaap |
Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax
OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax
|
-374000 | USD |
CY2018 | us-gaap |
Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax
OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax
|
-278000 | USD |
CY2016 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax
|
955000 | USD |
CY2017 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax
|
572000 | USD |
CY2018 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax
|
774000 | USD |
CY2016 | us-gaap |
Other Cost And Expense Operating
OtherCostAndExpenseOperating
|
0 | USD |
CY2017 | us-gaap |
Other Cost And Expense Operating
OtherCostAndExpenseOperating
|
0 | USD |
CY2018 | us-gaap |
Other Cost And Expense Operating
OtherCostAndExpenseOperating
|
3227000 | USD |
CY2016 | us-gaap |
Other Increase Decrease In Environmental Liabilities
OtherIncreaseDecreaseInEnvironmentalLiabilities
|
-10469000 | USD |
CY2017 | us-gaap |
Other Increase Decrease In Environmental Liabilities
OtherIncreaseDecreaseInEnvironmentalLiabilities
|
-13716000 | USD |
CY2018 | us-gaap |
Other Increase Decrease In Environmental Liabilities
OtherIncreaseDecreaseInEnvironmentalLiabilities
|
-14528000 | USD |
CY2017Q4 | us-gaap |
Other Investments
OtherInvestments
|
1902000 | USD |
CY2018Q4 | us-gaap |
Other Investments
OtherInvestments
|
65000 | USD |
CY2017Q4 | us-gaap |
Other Liabilities Current
OtherLiabilitiesCurrent
|
39942000 | USD |
CY2018Q4 | us-gaap |
Other Liabilities Current
OtherLiabilitiesCurrent
|
54492000 | USD |
CY2017Q4 | us-gaap |
Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
|
135292000 | USD |
CY2018Q4 | us-gaap |
Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
|
147763000 | USD |
CY2017Q4 | us-gaap |
Other Long Term Investments
OtherLongTermInvestments
|
66363000 | USD |
CY2018Q4 | us-gaap |
Other Long Term Investments
OtherLongTermInvestments
|
63558000 | USD |
CY2016 | us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
-2846000 | USD |
CY2017 | us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
-2102000 | USD |
CY2018 | us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
-1596000 | USD |
CY2016 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
-7151000 | USD |
CY2017 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
-295000 | USD |
CY2018 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
-3601000 | USD |
CY2016 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
-2882000 | USD |
CY2017 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
577000 | USD |
CY2018 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
3390000 | USD |
CY2016 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
1042000 | USD |
CY2017 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
2034000 | USD |
CY2018 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
0 | USD |
CY2017 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
53957000 | USD |
CY2016 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
51508000 | USD |
CY2018 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
51311000 | USD |
CY2016 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
138357000 | USD |
CY2017 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
213325000 | USD |
CY2018 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
214636000 | USD |
CY2017Q4 | us-gaap |
Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
|
223333000 | USD |
CY2018Q4 | us-gaap |
Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
|
221886000 | USD |
CY2016 | us-gaap |
Pension Contributions
PensionContributions
|
14470000 | USD |
CY2017 | us-gaap |
Pension Contributions
PensionContributions
|
19430000 | USD |
CY2018 | us-gaap |
Pension Contributions
PensionContributions
|
15540000 | USD |
CY2016 | us-gaap |
Pension Expense
PensionExpense
|
5274000 | USD |
CY2017 | us-gaap |
Pension Expense
PensionExpense
|
5364000 | USD |
CY2018 | us-gaap |
Pension Expense
PensionExpense
|
8108000 | USD |
CY2016 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
52760000 | USD |
CY2017 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
0 | USD |
CY2018 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
0 | USD |
CY2017 | us-gaap |
Proceeds From Issuance Of Debt
ProceedsFromIssuanceOfDebt
|
100000000 | USD |
CY2016 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
150000000 | USD |
CY2017 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
100000000 | USD |
CY2018 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
50000000 | USD |
CY2016 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-3087000 | USD |
CY2017 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-2309000 | USD |
CY2018 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-715000 | USD |
CY2016 | us-gaap |
Proceeds From Repayments Of Short Term Debt
ProceedsFromRepaymentsOfShortTermDebt
|
-216735000 | USD |
CY2017 | us-gaap |
Proceeds From Repayments Of Short Term Debt
ProceedsFromRepaymentsOfShortTermDebt
|
900000 | USD |
CY2018 | us-gaap |
Proceeds From Repayments Of Short Term Debt
ProceedsFromRepaymentsOfShortTermDebt
|
163274000 | USD |
CY2016 | us-gaap |
Proceeds From Stock Options Exercised
ProceedsFromStockOptionsExercised
|
8404000 | USD |
CY2017 | us-gaap |
Proceeds From Stock Options Exercised
ProceedsFromStockOptionsExercised
|
4819000 | USD |
CY2018 | us-gaap |
Proceeds From Stock Options Exercised
ProceedsFromStockOptionsExercised
|
1546000 | USD |
CY2017Q4 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
3204635000 | USD |
CY2018Q4 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
3414490000 | USD |
CY2017Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
2244158000 | USD |
CY2018Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
2421372000 | USD |
CY2016 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Rate
PublicUtilitiesAllowanceForFundsUsedDuringConstructionRate
|
0.007 | |
CY2017 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Rate
PublicUtilitiesAllowanceForFundsUsedDuringConstructionRate
|
0.055 | |
CY2018 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Rate
PublicUtilitiesAllowanceForFundsUsedDuringConstructionRate
|
0.052 | |
CY2017Q4 | us-gaap |
Public Utilities Inventory
PublicUtilitiesInventory
|
47577000 | USD |
CY2018Q4 | us-gaap |
Public Utilities Inventory
PublicUtilitiesInventory
|
44149000 | USD |
CY2017Q4 | us-gaap |
Regulatory Assets Current
RegulatoryAssetsCurrent
|
45781000 | USD |
CY2018Q4 | us-gaap |
Regulatory Assets Current
RegulatoryAssetsCurrent
|
41930000 | USD |
CY2017Q4 | us-gaap |
Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
|
356608000 | USD |
CY2018Q4 | us-gaap |
Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
|
371786000 | USD |
CY2017Q4 | us-gaap |
Regulatory Liability Current
RegulatoryLiabilityCurrent
|
34013000 | USD |
CY2018Q4 | us-gaap |
Regulatory Liability Current
RegulatoryLiabilityCurrent
|
47436000 | USD |
CY2017Q4 | us-gaap |
Regulatory Liability Noncurrent
RegulatoryLiabilityNoncurrent
|
586093000 | USD |
CY2018Q4 | us-gaap |
Regulatory Liability Noncurrent
RegulatoryLiabilityNoncurrent
|
611560000 | USD |
CY2016 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
25000000 | USD |
CY2017 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
40000000 | USD |
CY2018 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
97000000 | USD |
CY2017Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
302349000 | USD |
CY2018Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
312182000 | USD |
CY2018 | us-gaap |
Revenue From Contract With Customer Including Assessed Tax
RevenueFromContractWithCustomerIncludingAssessedTax
|
696157000 | USD |
CY2018Q4 | us-gaap |
Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
|
14100000 | USD |
CY2018Q4 | us-gaap |
Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
|
11700000 | USD |
CY2018Q4 | us-gaap |
Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
|
10700000 | USD |
CY2018Q4 | us-gaap |
Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
|
7000000 | USD |
CY2018Q4 | us-gaap |
Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
|
5800000 | USD |
CY2018Q4 | us-gaap |
Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
|
6700000 | USD |
CY2018Q4 | us-gaap |
Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
|
56000000 | USD |
CY2018Q4 | us-gaap |
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Year1
RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionYear1
|
2019 | |
CY2018Q4 | us-gaap |
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Year1
RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionYear1
|
2020 | |
CY2018Q4 | us-gaap |
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Year1
RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionYear1
|
2021 | |
CY2018Q4 | us-gaap |
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Year1
RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionYear1
|
2022 | |
CY2018Q4 | us-gaap |
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Year1
RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionYear1
|
2023 | |
CY2016 | us-gaap |
Revenues
Revenues
|
668173000 | USD |
CY2017Q1 | us-gaap |
Revenues
Revenues
|
295724000 | USD |
CY2017Q2 | us-gaap |
Revenues
Revenues
|
134476000 | USD |
CY2017Q3 | us-gaap |
Revenues
Revenues
|
86212000 | USD |
CY2017Q4 | us-gaap |
Revenues
Revenues
|
238626000 | USD |
CY2017 | us-gaap |
Revenues
Revenues
|
755038000 | USD |
CY2018Q1 | us-gaap |
Revenues
Revenues
|
263635000 | USD |
CY2018Q2 | us-gaap |
Revenues
Revenues
|
124567000 | USD |
CY2018Q3 | us-gaap |
Revenues
Revenues
|
91239000 | USD |
CY2018Q4 | us-gaap |
Revenues
Revenues
|
226702000 | USD |
CY2018 | us-gaap |
Revenues
Revenues
|
706100000 | USD |
CY2018 | us-gaap |
Revenues
Revenues
|
706143000 | USD |
CY2017Q4 | us-gaap |
Short Term Borrowings
ShortTermBorrowings
|
54200000 | USD |
CY2018Q4 | us-gaap |
Short Term Borrowings
ShortTermBorrowings
|
217620000 | USD |
CY2017Q4 | us-gaap |
Short Term Debt Weighted Average Interest Rate
ShortTermDebtWeightedAverageInterestRate
|
0.019 | |
CY2018Q4 | us-gaap |
Short Term Debt Weighted Average Interest Rate
ShortTermDebtWeightedAverageInterestRate
|
0.030 | |
CY2016 | us-gaap |
Stock Issued During Period Value Employee Stock Purchase Plan
StockIssuedDuringPeriodValueEmployeeStockPurchasePlan
|
6358000 | USD |
CY2017 | us-gaap |
Stock Issued During Period Value Employee Stock Purchase Plan
StockIssuedDuringPeriodValueEmployeeStockPurchasePlan
|
796000 | USD |
CY2018 | us-gaap |
Stock Issued During Period Value Employee Stock Purchase Plan
StockIssuedDuringPeriodValueEmployeeStockPurchasePlan
|
5175000 | USD |
CY2016 | us-gaap |
Stock Issued During Period Value New Issues
StockIssuedDuringPeriodValueNewIssues
|
52761000 | USD |
CY2016 | us-gaap |
Stock Issued During Period Value Share Based Compensation
StockIssuedDuringPeriodValueShareBasedCompensation
|
2924000 | USD |
CY2017 | us-gaap |
Stock Issued During Period Value Share Based Compensation
StockIssuedDuringPeriodValueShareBasedCompensation
|
2882000 | USD |
CY2018 | us-gaap |
Stock Issued During Period Value Share Based Compensation
StockIssuedDuringPeriodValueShareBasedCompensation
|
3020000 | USD |
CY2017Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
742776000 | USD |
CY2018Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
762634000 | USD |
CY2015Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
780972000 | USD |
CY2016Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
850497000 | USD |
CY2017Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
742776000 | USD |
CY2018Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
762634000 | USD |
CY2016 | us-gaap |
Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
|
29243000 | USD |
CY2017 | us-gaap |
Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
|
30639000 | USD |
CY2018 | us-gaap |
Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
|
32172000 | USD |
CY2017Q4 | us-gaap |
Unbilled Receivables Current
UnbilledReceivablesCurrent
|
62381000 | USD |
CY2018Q4 | us-gaap |
Unbilled Receivables Current
UnbilledReceivablesCurrent
|
57827000 | USD |
CY2018 | us-gaap |
Unrealized Gain Loss On Derivatives
UnrealizedGainLossOnDerivatives
|
-7800000 | USD |
CY2016Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
0 | USD |
CY2017Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
0 | USD |
CY2018Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
0 | USD |
CY2016 | us-gaap |
Utilities Operating Expense Gas And Petroleum Purchased
UtilitiesOperatingExpenseGasAndPetroleumPurchased
|
260588000 | USD |
CY2017 | us-gaap |
Utilities Operating Expense Gas And Petroleum Purchased
UtilitiesOperatingExpenseGasAndPetroleumPurchased
|
324795000 | USD |
CY2018 | us-gaap |
Utilities Operating Expense Gas And Petroleum Purchased
UtilitiesOperatingExpenseGasAndPetroleumPurchased
|
255519000 | USD |
CY2016 | us-gaap |
Valuation Allowances And Reserves Charged To Cost And Expense
ValuationAllowancesAndReservesChargedToCostAndExpense
|
1246000 | USD |
CY2017 | us-gaap |
Valuation Allowances And Reserves Charged To Cost And Expense
ValuationAllowancesAndReservesChargedToCostAndExpense
|
865000 | USD |
CY2018 | us-gaap |
Valuation Allowances And Reserves Charged To Cost And Expense
ValuationAllowancesAndReservesChargedToCostAndExpense
|
680000 | USD |
CY2016 | us-gaap |
Valuation Allowances And Reserves Charged To Other Accounts
ValuationAllowancesAndReservesChargedToOtherAccounts
|
0 | USD |
CY2017 | us-gaap |
Valuation Allowances And Reserves Charged To Other Accounts
ValuationAllowancesAndReservesChargedToOtherAccounts
|
0 | USD |
CY2018 | us-gaap |
Valuation Allowances And Reserves Charged To Other Accounts
ValuationAllowancesAndReservesChargedToOtherAccounts
|
0 | USD |
CY2016 | us-gaap |
Valuation Allowances And Reserves Deductions
ValuationAllowancesAndReservesDeductions
|
826000 | USD |
CY2017 | us-gaap |
Valuation Allowances And Reserves Deductions
ValuationAllowancesAndReservesDeductions
|
1199000 | USD |
CY2018 | us-gaap |
Valuation Allowances And Reserves Deductions
ValuationAllowancesAndReservesDeductions
|
659000 | USD |
CY2016 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
27779000 | shares |
CY2017Q1 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
28723000 | shares |
CY2017Q2 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
28717000 | shares |
CY2017Q3 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
28678000 | shares |
CY2017Q4 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
28797000 | shares |
CY2017 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
28753000 | shares |
CY2018Q1 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
28803000 | shares |
CY2018Q2 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
28791000 | shares |
CY2018Q3 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
28815000 | shares |
CY2018Q4 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
28940000 | shares |
CY2018 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
28873000 | shares |
CY2016 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
27647000 | shares |
CY2017Q1 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
28633000 | shares |
CY2017Q2 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
28648000 | shares |
CY2017Q3 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
28678000 | shares |
CY2017Q4 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
28716000 | shares |
CY2017 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
28669000 | shares |
CY2018Q1 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
28753000 | shares |
CY2018Q2 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
28791000 | shares |
CY2018Q3 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
28815000 | shares |
CY2018Q4 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
28851000 | shares |
CY2018 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
28803000 | shares |
CY2018 | us-gaap |
Use Of Estimates
UseOfEstimates
|
<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:left;font-size:9.5pt;"><font style="font-family:Arial;font-size:9.5pt;font-weight:bold;text-decoration:underline;">Use of Estimates</font><font style="font-family:Arial;font-size:9pt;"> </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:Arial;font-size:9pt;">The preparation of financial statements in conformity with generally accepted accounting principles in the United States of America (U.S. GAAP) requires management to make estimates and assumptions that affect reported amounts in the consolidated financial statements and accompanying notes. Actual amounts could differ from those estimates, and changes would most likely be reported in future periods. Management believes the estimates and assumptions used are reasonable</font><font style="font-family:inherit;font-size:10pt;">.</font></div></div> |