2018 Q1 Form 10-K Financial Statement
#000119312518028247 Filed on February 01, 2018
Income Statement
Concept | 2018 Q1 | 2016 Q4 | 2016 Q3 |
---|---|---|---|
Revenue | $145.8M | $104.3M | $78.80M |
YoY Change | 15.71% | 1.86% | 5.49% |
Cost Of Revenue | $82.30M | $48.90M | $35.70M |
YoY Change | 27.99% | -3.17% | 2.88% |
Gross Profit | $63.50M | $55.40M | $43.10M |
YoY Change | 2.92% | 6.74% | 7.75% |
Gross Profit Margin | 43.55% | 53.12% | 54.7% |
Selling, General & Admin | |||
YoY Change | |||
% of Gross Profit | |||
Research & Development | |||
YoY Change | |||
% of Gross Profit | |||
Depreciation & Amortization | $12.30M | $11.50M | $11.60M |
YoY Change | -1.6% | -0.86% | 1.75% |
% of Gross Profit | 19.37% | 20.76% | 26.91% |
Operating Expenses | $35.40M | $29.20M | $32.00M |
YoY Change | -0.56% | -12.57% | -2.14% |
Operating Profit | $28.10M | $21.30M | $11.10M |
YoY Change | 1.44% | 15.14% | 52.05% |
Interest Expense | -$6.000M | -$5.800M | -$5.500M |
YoY Change | 0.0% | 26.09% | 0.0% |
% of Operating Profit | -21.35% | -27.23% | -49.55% |
Other Income/Expense, Net | -$1.700M | -$5.000M | -$100.0K |
YoY Change | 6.25% | -814.29% | |
Pretax Income | $20.40M | $15.40M | $5.500M |
YoY Change | 1.49% | 5.48% | 205.56% |
Income Tax | $4.800M | $5.200M | $2.000M |
% Of Pretax Income | 23.53% | 33.77% | 36.36% |
Net Earnings | $15.60M | $10.20M | $3.500M |
YoY Change | 25.81% | 9.68% | 105.88% |
Net Earnings / Revenue | 10.7% | 9.78% | 4.44% |
Basic Earnings Per Share | |||
Diluted Earnings Per Share | $1.054M | $728.6K | $250.0K |
COMMON SHARES | |||
Basic Shares Outstanding | 14.82M shares | 14.06M shares | 14.05M shares |
Diluted Shares Outstanding |
Balance Sheet
Concept | 2018 Q1 | 2016 Q4 | 2016 Q3 |
---|---|---|---|
SHORT-TERM ASSETS | |||
Cash & Short-Term Investments | $9.500M | $5.800M | $4.400M |
YoY Change | 7.95% | -33.33% | -50.56% |
Cash & Equivalents | $9.500M | $5.800M | $4.400M |
Short-Term Investments | |||
Other Short-Term Assets | $7.100M | $14.50M | $12.90M |
YoY Change | -55.63% | 23.93% | -27.93% |
Inventory | $8.200M | $600.0K | $600.0K |
Prepaid Expenses | |||
Receivables | $74.40M | $52.90M | $43.10M |
Other Receivables | $200.0K | $8.300M | $9.800M |
Total Short-Term Assets | $144.5M | $131.6M | $107.6M |
YoY Change | 14.59% | 9.21% | 1.03% |
LONG-TERM ASSETS | |||
Property, Plant & Equipment | $972.4M | $883.4M | $861.0M |
YoY Change | 9.15% | 9.21% | 10.05% |
Goodwill | |||
YoY Change | |||
Intangibles | |||
YoY Change | |||
Long-Term Investments | |||
YoY Change | |||
Other Assets | $16.20M | $9.100M | $7.300M |
YoY Change | 16.55% | -7.14% | -32.41% |
Total Long-Term Assets | $127.4M | $113.2M | $103.8M |
YoY Change | 8.52% | 3.47% | -8.63% |
TOTAL ASSETS | |||
Total Short-Term Assets | $144.5M | $131.6M | $107.6M |
Total Long-Term Assets | $127.4M | $113.2M | $103.8M |
Total Assets | $1.244B | $1.128B | $1.072B |
YoY Change | 9.69% | 8.61% | 6.97% |
SHORT-TERM LIABILITIES | |||
YoY Change | |||
Accounts Payable | $30.10M | $32.40M | $23.10M |
YoY Change | 7.12% | -2.7% | 8.96% |
Accrued Expenses | $6.900M | $6.300M | |
YoY Change | 15.0% | 0.0% | |
Deferred Revenue | |||
YoY Change | |||
Short-Term Debt | $45.30M | $81.90M | $36.90M |
YoY Change | -40.86% | 95.0% | 800.0% |
Long-Term Debt Due | $29.80M | $16.80M | $17.00M |
YoY Change | -0.67% | -1.75% | 347.37% |
Total Short-Term Liabilities | $146.3M | $176.9M | $126.3M |
YoY Change | -17.34% | 22.59% | 25.17% |
LONG-TERM LIABILITIES | |||
Long-Term Debt | $363.0M | $316.8M | $335.0M |
YoY Change | 19.6% | 3.7% | 2.86% |
Other Long-Term Liabilities | $12.10M | $5.100M | $3.800M |
YoY Change | 146.94% | 41.67% | 8.57% |
Total Long-Term Liabilities | $386.4M | $341.4M | $324.0M |
YoY Change | 9.74% | 11.5% | 8.65% |
TOTAL LIABILITIES | |||
Total Short-Term Liabilities | $146.3M | $176.9M | $126.3M |
Total Long-Term Liabilities | $386.4M | $341.4M | $324.0M |
Total Liabilities | $532.7M | $518.3M | $450.3M |
YoY Change | 0.68% | 15.05% | 12.83% |
SHAREHOLDERS EQUITY | |||
Retained Earnings | $71.00M | $52.20M | $47.00M |
YoY Change | 19.33% | 15.74% | 15.48% |
Common Stock | |||
YoY Change | |||
Preferred Stock | |||
YoY Change | |||
Treasury Stock (at cost) | |||
YoY Change | |||
Treasury Stock Shares | |||
Shareholders Equity | $348.6M | $293.1M | $287.1M |
YoY Change | |||
Total Liabilities & Shareholders Equity | $1.244B | $1.128B | $1.072B |
YoY Change | 9.69% | 8.61% | 6.97% |
Cashflow Statement
Concept | 2018 Q1 | 2016 Q4 | 2016 Q3 |
---|---|---|---|
OPERATING ACTIVITIES | |||
Net Income | $15.60M | $10.20M | $3.500M |
YoY Change | 25.81% | 9.68% | 105.88% |
Depreciation, Depletion And Amortization | $12.30M | $11.50M | $11.60M |
YoY Change | -1.6% | -0.86% | 1.75% |
Cash From Operating Activities | $28.40M | $5.600M | $22.50M |
YoY Change | -24.27% | 33.33% | 10.29% |
INVESTING ACTIVITIES | |||
Capital Expenditures | $10.10M | -$23.70M | $34.80M |
YoY Change | -42.29% | -28.18% | 8.41% |
Acquisitions | |||
YoY Change | |||
Other Investing Activities | |||
YoY Change | |||
Cash From Investing Activities | -$10.10M | -$23.70M | -$34.80M |
YoY Change | -42.29% | -28.18% | 7.41% |
FINANCING ACTIVITIES | |||
Cash Dividend Paid | $5.400M | ||
YoY Change | 5.88% | ||
Common Stock Issuance & Retirement, Net | $300.0K | ||
YoY Change | 0.0% | ||
Debt Paid & Issued, Net | $13.40M | ||
YoY Change | 6600.0% | ||
Cash From Financing Activities | -17.70M | 19.50M | 8.800M |
YoY Change | 4.12% | -31.82% | 83.33% |
NET CHANGE | |||
Cash From Operating Activities | 28.40M | 5.600M | 22.50M |
Cash From Investing Activities | -10.10M | -23.70M | -34.80M |
Cash From Financing Activities | -17.70M | 19.50M | 8.800M |
Net Change In Cash | 600.0K | 1.400M | -3.500M |
YoY Change | -80.0% | -800.0% | -51.39% |
FREE CASH FLOW | |||
Cash From Operating Activities | $28.40M | $5.600M | $22.50M |
Capital Expenditures | $10.10M | -$23.70M | $34.80M |
Free Cash Flow | $18.30M | $29.30M | -$12.30M |
YoY Change | -8.5% | -21.24% | 5.13% |
Facts In Submission
Frame | Concept Type | Concept / XBRL Key | Value | Unit |
---|---|---|---|---|
CY2016Q4 | us-gaap |
Common Stock Shares Outstanding
CommonStockSharesOutstanding
|
14065230 | shares |
CY2016Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
52200000 | |
CY2017Q2 | utl |
Power Capacity Facility For Small Customers
PowerCapacityFacilityForSmallCustomers
|
100 | kW |
CY2017Q2 | dei |
Entity Public Float
EntityPublicFloat
|
665078163 | |
CY2017Q4 | us-gaap |
Deferred Finance Costs Noncurrent Net
DeferredFinanceCostsNoncurrentNet
|
700000 | |
CY2014Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable
AllowanceForDoubtfulAccountsReceivable
|
1800000 | |
CY2014Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
8400000 | |
CY2014Q4 | utl |
Common Stock Equity
CommonStockEquity
|
273100000 | |
CY2015Q4 | us-gaap |
Short Term Debt Weighted Average Interest Rate
ShortTermDebtWeightedAverageInterestRate
|
0.015 | pure |
CY2015Q4 | us-gaap |
Accrual For Environmental Loss Contingencies
AccrualForEnvironmentalLossContingencies
|
2800000 | |
CY2015Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable
AllowanceForDoubtfulAccountsReceivable
|
1200000 | |
CY2015Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
8700000 | |
CY2015Q4 | us-gaap |
Assets
Assets
|
1038800000 | |
CY2015Q4 | utl |
Common Stock Equity
CommonStockEquity
|
282600000 | |
CY2016Q4 | us-gaap |
Short Term Debt Weighted Average Interest Rate
ShortTermDebtWeightedAverageInterestRate
|
0.018 | pure |
CY2016Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
25000000 | shares |
CY2016Q4 | us-gaap |
Regulatory Liability Noncurrent
RegulatoryLiabilityNoncurrent
|
2600000 | |
CY2016Q4 | us-gaap |
Regulatory Liabilities
RegulatoryLiabilities
|
13000000 | |
CY2016Q4 | us-gaap |
Public Utilities Property Plant And Equipment Accumulated Depreciation
PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation
|
290000000 | |
CY2016Q4 | us-gaap |
Preferred Stock Value
PreferredStockValue
|
200000 | |
CY2016Q4 | us-gaap |
Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
|
5100000 | |
CY2016Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
1128200000 | |
CY2016Q4 | us-gaap |
Deferred Tax Liabilities Other
DeferredTaxLiabilitiesOther
|
3629000 | |
CY2016Q4 | us-gaap |
Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
|
183463000 | |
CY2016Q4 | us-gaap |
Capitalization Longterm Debt And Equity
CapitalizationLongtermDebtAndEquity
|
609900000 | |
CY2016Q4 | us-gaap |
Accrual For Environmental Loss Contingencies
AccrualForEnvironmentalLossContingencies
|
1900000 | |
CY2016Q4 | us-gaap |
Accounts Payable Current
AccountsPayableCurrent
|
32400000 | |
CY2016Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
293100000 | |
CY2016Q4 | us-gaap |
Long Term Debt Noncurrent
LongTermDebtNoncurrent
|
316800000 | |
CY2016Q4 | us-gaap |
Liabilities Noncurrent
LiabilitiesNoncurrent
|
341400000 | |
CY2016Q4 | us-gaap |
Deferred Tax Liabilities
DeferredTaxLiabilities
|
97947000 | |
CY2016Q4 | us-gaap |
Debt Instrument Carrying Amount
DebtInstrumentCarryingAmount
|
336600000 | |
CY2016Q4 | us-gaap |
Pension And Other Postretirement And Postemployment Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementAndPostemploymentBenefitPlansLiabilitiesNoncurrent
|
149000000 | |
CY2016Q4 | us-gaap |
Other Liabilities Current
OtherLiabilitiesCurrent
|
20000000 | |
CY2016Q4 | us-gaap |
Energy Marketing Contract Liabilities Current
EnergyMarketingContractLiabilitiesCurrent
|
12000000 | |
CY2016Q4 | us-gaap |
Energy Marketing Contract Liabilities Noncurrent
EnergyMarketingContractLiabilitiesNoncurrent
|
1300000 | |
CY2016Q4 | us-gaap |
Deferred Tax Liabilities Noncurrent
DeferredTaxLiabilitiesNoncurrent
|
97900000 | |
CY2016Q4 | us-gaap |
Deferred Tax Liabilities Regulatory Assets And Liabilities
DeferredTaxLiabilitiesRegulatoryAssetsAndLiabilities
|
10594000 | |
CY2016Q4 | us-gaap |
Common Stocks Including Additional Paid In Capital
CommonStocksIncludingAdditionalPaidInCapital
|
240700000 | |
CY2016Q4 | us-gaap |
Commitments And Contingencies
CommitmentsAndContingencies
|
||
CY2016Q4 | us-gaap |
Capital Lease Obligations Noncurrent
CapitalLeaseObligationsNoncurrent
|
8300000 | |
CY2016Q4 | us-gaap |
Short Term Borrowings
ShortTermBorrowings
|
81900000 | |
CY2016Q4 | us-gaap |
Regulatory Liability Current
RegulatoryLiabilityCurrent
|
10400000 | |
CY2016Q4 | us-gaap |
Long Term Debt Current
LongTermDebtCurrent
|
16800000 | |
CY2016Q4 | us-gaap |
Long Term Debt
LongTermDebt
|
333600000 | |
CY2016Q4 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
176900000 | |
CY2016Q4 | us-gaap |
Regulatory Assets
RegulatoryAssets
|
142000000 | |
CY2016Q4 | us-gaap |
Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
|
104100000 | |
CY2016Q4 | us-gaap |
Capital Lease Obligations Current
CapitalLeaseObligationsCurrent
|
3000000 | |
CY2016Q4 | us-gaap |
Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
|
169240000 | |
CY2016Q4 | us-gaap |
Asset Retirement Obligations Noncurrent
AssetRetirementObligationsNoncurrent
|
77000000 | |
CY2016Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable
AllowanceForDoubtfulAccountsReceivable
|
1100000 | |
CY2016Q4 | us-gaap |
Accrued Environmental Loss Contingencies Current
AccruedEnvironmentalLossContingenciesCurrent
|
400000 | |
CY2016Q4 | us-gaap |
Accrued Environmental Loss Contingencies Noncurrent
AccruedEnvironmentalLossContingenciesNoncurrent
|
1500000 | |
CY2016Q4 | us-gaap |
Assets Current
AssetsCurrent
|
131600000 | |
CY2016Q4 | us-gaap |
Deferred Tax Assets Other
DeferredTaxAssetsOther
|
1426000 | |
CY2016Q4 | us-gaap |
Unamortized Debt Issuance Expense
UnamortizedDebtIssuanceExpense
|
3000000 | |
CY2016Q4 | us-gaap |
Unbilled Contracts Receivable
UnbilledContractsReceivable
|
49500000 | |
CY2016Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
5800000 | |
CY2016Q4 | us-gaap |
Deferred Tax Assets Operating Loss Carryforwards
DeferredTaxAssetsOperatingLossCarryforwards
|
23921000 | |
CY2016Q4 | us-gaap |
Deferred Tax Assets Tax Credit Carryforwards
DeferredTaxAssetsTaxCreditCarryforwards
|
3365000 | |
CY2016Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits
|
56804000 | |
CY2016Q4 | us-gaap |
Public Utilities Property Plant And Equipment Net
PublicUtilitiesPropertyPlantAndEquipmentNet
|
883400000 | |
CY2016Q4 | us-gaap |
Public Utilities Property Plant And Equipment Transmission And Distribution
PublicUtilitiesPropertyPlantAndEquipmentTransmissionAndDistribution
|
437900000 | |
CY2016Q4 | us-gaap |
Regulatory Assets Current
RegulatoryAssetsCurrent
|
37900000 | |
CY2016Q4 | us-gaap |
Accounts Receivable Net Current
AccountsReceivableNetCurrent
|
52900000 | |
CY2016Q4 | us-gaap |
Assets Noncurrent
AssetsNoncurrent
|
113200000 | |
CY2016Q4 | us-gaap |
Inventory Raw Materials And Supplies
InventoryRawMaterialsAndSupplies
|
6800000 | |
CY2016Q4 | us-gaap |
Other Receivables Net Current
OtherReceivablesNetCurrent
|
8300000 | |
CY2016Q4 | us-gaap |
Prepaid Expense And Other Assets
PrepaidExpenseAndOtherAssets
|
7700000 | |
CY2016Q4 | us-gaap |
Public Utilities Property Plant And Equipment Construction Work In Progress
PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress
|
70200000 | |
CY2016Q4 | us-gaap |
Assets
Assets
|
1128200000 | |
CY2016Q4 | us-gaap |
Deferred Tax Assets Gross
DeferredTaxAssetsGross
|
85516000 | |
CY2016Q4 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
9100000 | |
CY2016Q4 | us-gaap |
Public Utilities Property Plant And Equipment Common
PublicUtilitiesPropertyPlantAndEquipmentCommon
|
35800000 | |
CY2016Q4 | us-gaap |
Public Utilities Property Plant And Equipment Plant In Service
PublicUtilitiesPropertyPlantAndEquipmentPlantInService
|
1173400000 | |
CY2016Q4 | us-gaap |
Trading Securities
TradingSecurities
|
1900000 | |
CY2016Q4 | us-gaap |
Weighted Average Cost Inventory Amount
WeightedAverageCostInventoryAmount
|
600000 | |
CY2016Q4 | utl |
Energy Marketing Contract Liabilities
EnergyMarketingContractLiabilities
|
13300000 | |
CY2016Q4 | utl |
Public Utilities Property Plant And Equipment Gas
PublicUtilitiesPropertyPlantAndEquipmentGas
|
629500000 | |
CY2016Q4 | utl |
Natural Gas And Oil Proved Reserves Multiplier To Cover Fair Value Of Transactions Outstanding
NaturalGasAndOilProvedReservesMultiplierToCoverFairValueOfTransactionsOutstanding
|
2000000000 | Bcf |
CY2016Q4 | utl |
Fair Value Of Restricted Stock Units Settled In Cash
FairValueOfRestrictedStockUnitsSettledInCash
|
800000 | |
CY2016Q4 | utl |
Common Stock Equity
CommonStockEquity
|
292900000 | |
CY2017Q4 | us-gaap |
Short Term Debt Weighted Average Interest Rate
ShortTermDebtWeightedAverageInterestRate
|
0.024 | pure |
CY2017Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
25000000 | shares |
CY2017Q4 | us-gaap |
Common Stock Shares Outstanding
CommonStockSharesOutstanding
|
14815585 | shares |
CY2017Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
60800000 | |
CY2017Q4 | us-gaap |
Regulatory Liability Noncurrent
RegulatoryLiabilityNoncurrent
|
48900000 | |
CY2017Q4 | us-gaap |
Regulatory Liabilities
RegulatoryLiabilities
|
58100000 | |
CY2017Q4 | us-gaap |
Public Utilities Property Plant And Equipment Accumulated Depreciation
PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation
|
307700000 | |
CY2017Q4 | us-gaap |
Preferred Stock Value
PreferredStockValue
|
200000 | |
CY2017Q4 | us-gaap |
Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
|
4300000 | |
CY2017Q4 | us-gaap |
Operating Leases Future Minimum Payments Due
OperatingLeasesFutureMinimumPaymentsDue
|
4495000 | |
CY2017Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Two Years
OperatingLeasesFutureMinimumPaymentsDueInTwoYears
|
1013000 | |
CY2017Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
1241900000 | |
CY2017Q4 | us-gaap |
Deferred Tax Liabilities Other
DeferredTaxLiabilitiesOther
|
1894000 | |
CY2017Q4 | us-gaap |
Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
|
139149000 | |
CY2017Q4 | us-gaap |
Capital Leases Future Minimum Payments Due In Four Years
CapitalLeasesFutureMinimumPaymentsDueInFourYears
|
98000 | |
CY2017Q4 | us-gaap |
Capitalization Longterm Debt And Equity
CapitalizationLongtermDebtAndEquity
|
713100000 | |
CY2017Q4 | us-gaap |
Accrual For Environmental Loss Contingencies
AccrualForEnvironmentalLossContingencies
|
2100000 | |
CY2017Q4 | us-gaap |
Accounts Payable Current
AccountsPayableCurrent
|
41500000 | |
CY2017Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
336800000 | |
CY2017Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Four Years
OperatingLeasesFutureMinimumPaymentsDueInFourYears
|
672000 | |
CY2017Q4 | us-gaap |
Operating Leases Future Minimum Payments Due Current
OperatingLeasesFutureMinimumPaymentsDueCurrent
|
1351000 | |
CY2017Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Five Years
OperatingLeasesFutureMinimumPaymentsDueInFiveYears
|
397000 | |
CY2017Q4 | us-gaap |
Long Term Debt Noncurrent
LongTermDebtNoncurrent
|
376300000 | |
CY2017Q4 | us-gaap |
Liabilities Noncurrent
LiabilitiesNoncurrent
|
377800000 | |
CY2017Q4 | us-gaap |
Deferred Tax Liabilities
DeferredTaxLiabilities
|
82857000 | |
CY2017Q4 | us-gaap |
Debt Instrument Carrying Amount
DebtInstrumentCarryingAmount
|
409400000 | |
CY2017Q4 | us-gaap |
Capital Leases Future Minimum Payments Due In Five Years
CapitalLeasesFutureMinimumPaymentsDueInFiveYears
|
14000 | |
CY2017Q4 | us-gaap |
Capital Leases Future Minimum Payments Due In Two Years
CapitalLeasesFutureMinimumPaymentsDueInTwoYears
|
3054000 | |
CY2017Q4 | us-gaap |
Capital Leases Future Minimum Payments Due Thereafter
CapitalLeasesFutureMinimumPaymentsDueThereafter
|
0 | |
CY2017Q4 | us-gaap |
Pension And Other Postretirement And Postemployment Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementAndPostemploymentBenefitPlansLiabilitiesNoncurrent
|
150100000 | |
CY2017Q4 | us-gaap |
Other Liabilities Current
OtherLiabilitiesCurrent
|
18900000 | |
CY2017Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Three Years
OperatingLeasesFutureMinimumPaymentsDueInThreeYears
|
842000 | |
CY2017Q4 | us-gaap |
Energy Marketing Contract Liabilities Current
EnergyMarketingContractLiabilitiesCurrent
|
9700000 | |
CY2017Q4 | us-gaap |
Energy Marketing Contract Liabilities Noncurrent
EnergyMarketingContractLiabilitiesNoncurrent
|
900000 | |
CY2017Q4 | us-gaap |
Deferred Tax Liabilities Noncurrent
DeferredTaxLiabilitiesNoncurrent
|
82900000 | |
CY2017Q4 | us-gaap |
Deferred Tax Liabilities Regulatory Assets And Liabilities
DeferredTaxLiabilitiesRegulatoryAssetsAndLiabilities
|
9323000 | |
CY2017Q4 | us-gaap |
Common Stocks Including Additional Paid In Capital
CommonStocksIncludingAdditionalPaidInCapital
|
275800000 | |
CY2017Q4 | us-gaap |
Commitments And Contingencies
CommitmentsAndContingencies
|
||
CY2017Q4 | us-gaap |
Capital Leases Future Minimum Payments Due In Three Years
CapitalLeasesFutureMinimumPaymentsDueInThreeYears
|
2496000 | |
CY2017Q4 | us-gaap |
Capital Lease Obligations Current
CapitalLeaseObligationsCurrent
|
3100000 | |
CY2017Q4 | us-gaap |
Capital Lease Obligations Noncurrent
CapitalLeaseObligationsNoncurrent
|
5700000 | |
CY2017Q4 | us-gaap |
Capital Leases Future Minimum Payments Due
CapitalLeasesFutureMinimumPaymentsDue
|
8749000 | |
CY2017Q4 | us-gaap |
Statutory Accounting Practices Statutory Amount Available For Dividend Payments
StatutoryAccountingPracticesStatutoryAmountAvailableForDividendPayments
|
125000000 | |
CY2017Q4 | us-gaap |
Short Term Borrowings
ShortTermBorrowings
|
38300000 | |
CY2017Q4 | us-gaap |
Regulatory Liability Current
RegulatoryLiabilityCurrent
|
9200000 | |
CY2017Q4 | us-gaap |
Operating Leases Future Minimum Payments Due Thereafter
OperatingLeasesFutureMinimumPaymentsDueThereafter
|
220000 | |
CY2017Q4 | us-gaap |
Long Term Debt Current
LongTermDebtCurrent
|
29800000 | |
CY2017Q4 | us-gaap |
Long Term Debt
LongTermDebt
|
406100000 | |
CY2017Q4 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
151000000 | |
CY2017Q4 | us-gaap |
Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
|
127932000 | |
CY2017Q4 | us-gaap |
Capital Leases Future Minimum Payments Due Current
CapitalLeasesFutureMinimumPaymentsDueCurrent
|
3087000 | |
CY2017Q4 | us-gaap |
Asset Retirement Obligations Noncurrent
AssetRetirementObligationsNoncurrent
|
84300000 | |
CY2017Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable
AllowanceForDoubtfulAccountsReceivable
|
1600000 | |
CY2017Q4 | us-gaap |
Accrued Environmental Loss Contingencies Current
AccruedEnvironmentalLossContingenciesCurrent
|
500000 | |
CY2017Q4 | us-gaap |
Accrued Environmental Loss Contingencies Noncurrent
AccruedEnvironmentalLossContingenciesNoncurrent
|
1600000 | |
CY2017Q4 | us-gaap |
Assets Current
AssetsCurrent
|
151300000 | |
CY2017Q4 | us-gaap |
Deferred Tax Assets Other
DeferredTaxAssetsOther
|
1155000 | |
CY2017Q4 | us-gaap |
Regulatory Assets
RegulatoryAssets
|
149100000 | |
CY2017Q4 | us-gaap |
Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
|
109600000 | |
CY2017Q4 | us-gaap |
Remaining Amounts Of Regulatory Assets For Which No Return On Investment During Recovery Period Is Provided
RemainingAmountsOfRegulatoryAssetsForWhichNoReturnOnInvestmentDuringRecoveryPeriodIsProvided
|
1200000 | |
CY2017Q4 | us-gaap |
Unamortized Debt Issuance Expense
UnamortizedDebtIssuanceExpense
|
3300000 | |
CY2017Q4 | us-gaap |
Unbilled Contracts Receivable
UnbilledContractsReceivable
|
53300000 | |
CY2017Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
8900000 | |
CY2017Q4 | us-gaap |
Deferred Tax Assets Operating Loss Carryforwards
DeferredTaxAssetsOperatingLossCarryforwards
|
12686000 | |
CY2017Q4 | us-gaap |
Deferred Tax Assets Tax Credit Carryforwards
DeferredTaxAssetsTaxCreditCarryforwards
|
3536000 | |
CY2017Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits
|
38915000 | |
CY2017Q4 | us-gaap |
Public Utilities Property Plant And Equipment Net
PublicUtilitiesPropertyPlantAndEquipmentNet
|
971500000 | |
CY2017Q4 | us-gaap |
Public Utilities Property Plant And Equipment Transmission And Distribution
PublicUtilitiesPropertyPlantAndEquipmentTransmissionAndDistribution
|
476700000 | |
CY2017Q4 | us-gaap |
Regulatory Assets Current
RegulatoryAssetsCurrent
|
39500000 | |
CY2017Q4 | us-gaap |
Accounts Receivable Net Current
AccountsReceivableNetCurrent
|
67400000 | |
CY2017Q4 | us-gaap |
Assets Noncurrent
AssetsNoncurrent
|
119100000 | |
CY2017Q4 | us-gaap |
Deferred Finance Costs Noncurrent Net
DeferredFinanceCostsNoncurrentNet
|
300000 | |
CY2017Q4 | us-gaap |
Deferred Tax Assets Operating Loss Carryforwards Domestic
DeferredTaxAssetsOperatingLossCarryforwardsDomestic
|
1100000 | |
CY2017Q4 | us-gaap |
Inventory Raw Materials And Supplies
InventoryRawMaterialsAndSupplies
|
6900000 | |
CY2017Q4 | us-gaap |
Other Receivables Net Current
OtherReceivablesNetCurrent
|
5800000 | |
CY2017Q4 | us-gaap |
Prepaid Expense And Other Assets
PrepaidExpenseAndOtherAssets
|
8400000 | |
CY2017Q4 | us-gaap |
Public Utilities Property Plant And Equipment Construction Work In Progress
PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress
|
35500000 | |
CY2017Q4 | us-gaap |
Assets
Assets
|
1241900000 | |
CY2017Q4 | us-gaap |
Deferred Tax Assets Gross
DeferredTaxAssetsGross
|
56292000 | |
CY2017Q4 | us-gaap |
Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax
DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax
|
3500000 | |
CY2017Q4 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
9500000 | |
CY2017Q4 | us-gaap |
Public Utilities Property Plant And Equipment Common
PublicUtilitiesPropertyPlantAndEquipmentCommon
|
67400000 | |
CY2017Q4 | us-gaap |
Public Utilities Property Plant And Equipment Plant In Service
PublicUtilitiesPropertyPlantAndEquipmentPlantInService
|
1279200000 | |
CY2017Q4 | us-gaap |
Trading Securities
TradingSecurities
|
3600000 | |
CY2017Q4 | us-gaap |
Weighted Average Cost Inventory Amount
WeightedAverageCostInventoryAmount
|
600000 | |
CY2017Q4 | utl |
Energy Marketing Contract Liabilities
EnergyMarketingContractLiabilities
|
10600000 | |
CY2017Q4 | utl |
Public Utilities Property Plant And Equipment Gas
PublicUtilitiesPropertyPlantAndEquipmentGas
|
699600000 | |
CY2017Q4 | utl |
Natural Gas And Oil Proved Reserves Multiplier To Cover Fair Value Of Transactions Outstanding
NaturalGasAndOilProvedReservesMultiplierToCoverFairValueOfTransactionsOutstanding
|
600000000 | Bcf |
CY2017Q4 | utl |
Fair Value Of Restricted Stock Units Settled In Cash
FairValueOfRestrictedStockUnitsSettledInCash
|
1000000 | |
CY2017Q4 | utl |
Letter Of Credit Facility And Bank Guarantees Outstanding
LetterOfCreditFacilityAndBankGuaranteesOutstanding
|
17900000 | |
CY2017Q4 | utl |
Common Stock Equity
CommonStockEquity
|
336600000 | |
CY2018Q1 | dei |
Entity Common Stock Shares Outstanding
EntityCommonStockSharesOutstanding
|
14816931 | shares |
CY2015 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
1.40 | |
CY2015 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.34 | pure |
CY2015 | us-gaap |
Net Cash Provided By Used In Operating Activities Continuing Operations
NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
|
115100000 | |
CY2015 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
13920000 | shares |
CY2015 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
13917000 | shares |
CY2015 | us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.05 | pure |
CY2015 | us-gaap |
Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service
PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService
|
0.0357 | pure |
CY2015 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Shares Purchased For Award
ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesPurchasedForAward
|
1981 | shares |
CY2015 | us-gaap |
Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
|
3000 | shares |
CY2015 | us-gaap |
Weighted Average Number Of Share Outstanding Basic And Diluted
WeightedAverageNumberOfShareOutstandingBasicAndDiluted
|
13900000 | shares |
CY2015 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
1.40 | |
CY2015 | us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
0.01 | pure |
CY2015 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Credits
EffectiveIncomeTaxRateReconciliationTaxCredits
|
0.01 | pure |
CY2015 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
1.89 | |
CY2015 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.37 | pure |
CY2015 | us-gaap |
Stock Issued During Period Shares New Issues
StockIssuedDuringPeriodSharesNewIssues
|
36265 | shares |
CY2015 | us-gaap |
Regulated And Unregulated Operating Revenue
RegulatedAndUnregulatedOperatingRevenue
|
426800000 | |
CY2015 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
103900000 | |
CY2015 | us-gaap |
Other Sales Revenue Net
OtherSalesRevenueNet
|
6200000 | |
CY2015 | us-gaap |
Interest Income Expense Nonoperating Net
InterestIncomeExpenseNonoperatingNet
|
-21900000 | |
CY2015 | us-gaap |
Increase Decrease In Unbilled Receivables
IncreaseDecreaseInUnbilledReceivables
|
-10100000 | |
CY2015 | us-gaap |
Capital Lease Obligations Incurred
CapitalLeaseObligationsIncurred
|
1100000 | |
CY2015 | us-gaap |
Stock Issued During Period Value Share Based Compensation
StockIssuedDuringPeriodValueShareBasedCompensation
|
1500000 | |
CY2015 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
63100000 | |
CY2015 | us-gaap |
Net Income Loss
NetIncomeLoss
|
26300000 | |
CY2015 | us-gaap |
Interest Paid Net
InterestPaidNet
|
22300000 | |
CY2015 | us-gaap |
Interest And Other Income
InterestAndOtherIncome
|
1900000 | |
CY2015 | us-gaap |
Increase Decrease In Other Operating Capital Net
IncreaseDecreaseInOtherOperatingCapitalNet
|
-4500000 | |
CY2015 | us-gaap |
Increase Decrease In Accounts Receivable
IncreaseDecreaseInAccountsReceivable
|
-10900000 | |
CY2015 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
7400000 | |
CY2015 | us-gaap |
Regulated Operating Revenue Gas
RegulatedOperatingRevenueGas
|
202600000 | |
CY2015 | us-gaap |
Payments Of Dividends
PaymentsOfDividends
|
19600000 | |
CY2015 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
1800000 | |
CY2015 | us-gaap |
Allowance For Doubtful Accounts Receivable Recoveries
AllowanceForDoubtfulAccountsReceivableRecoveries
|
700000 | |
CY2015 | us-gaap |
Stock Issued During Period Value New Issues
StockIssuedDuringPeriodValueNewIssues
|
1300000 | |
CY2015 | us-gaap |
Regulated Operating Revenue Electric Non Nuclear
RegulatedOperatingRevenueElectricNonNuclear
|
218000000 | |
CY2015 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
500000 | |
CY2015 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
26300000 | |
CY2015 | us-gaap |
Increase Decrease In Receivables
IncreaseDecreaseInReceivables
|
-3900000 | |
CY2015 | us-gaap |
Increase Decrease In Other Current Assets And Liabilities Net
IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet
|
2400000 | |
CY2015 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
41700000 | |
CY2015 | us-gaap |
Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
|
400000 | |
CY2015 | us-gaap |
Allowance For Doubtful Accounts Receivable Write Offs
AllowanceForDoubtfulAccountsReceivableWriteOffs
|
6600000 | |
CY2015 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
12413000 | |
CY2015 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
11900000 | |
CY2015 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
|
-500000 | |
CY2015 | us-gaap |
Dividends
Dividends
|
19600000 | |
CY2015 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
15443000 | |
CY2015 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
-10900000 | |
CY2015 | us-gaap |
Pension Expense
PensionExpense
|
7300000 | |
CY2015 | us-gaap |
Increase Decrease In Regulatory Liabilities
IncreaseDecreaseInRegulatoryLiabilities
|
6900000 | |
CY2015 | us-gaap |
Interest Expense
InterestExpense
|
23800000 | |
CY2015 | us-gaap |
Net Cash Provided By Used In Investing Activities Continuing Operations
NetCashProvidedByUsedInInvestingActivitiesContinuingOperations
|
-103900000 | |
CY2015 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
1300000 | |
CY2015 | us-gaap |
Utilities Operating Expense Depreciation And Amortization
UtilitiesOperatingExpenseDepreciationAndAmortization
|
45700000 | |
CY2015 | us-gaap |
Utilities Operating Expense Purchased Power
UtilitiesOperatingExpensePurchasedPower
|
132500000 | |
CY2015 | us-gaap |
Utilities Operating Expense Taxes
UtilitiesOperatingExpenseTaxes
|
17700000 | |
CY2015 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
0 | |
CY2015 | us-gaap |
Proceeds From Repayments Of Short Term Debt
ProceedsFromRepaymentsOfShortTermDebt
|
12700000 | |
CY2015 | us-gaap |
Restricted Stock Expense
RestrictedStockExpense
|
1900000 | |
CY2017 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.34 | pure |
CY2017 | dei |
Entity Central Index Key
EntityCentralIndexKey
|
0000755001 | |
CY2015 | us-gaap |
Utilities Operating Expense
UtilitiesOperatingExpense
|
363700000 | |
CY2015 | us-gaap |
Current Federal State And Local Tax Expense Benefit
CurrentFederalStateAndLocalTaxExpenseBenefit
|
3530000 | |
CY2015 | us-gaap |
Deferred Federal State And Local Tax Expense Benefit
DeferredFederalStateAndLocalTaxExpenseBenefit
|
11913000 | |
CY2015 | us-gaap |
Lease And Rental Expense
LeaseAndRentalExpense
|
1700000 | |
CY2015 | us-gaap |
Net Cash Provided By Used In Financing Activities Continuing Operations
NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
|
-10900000 | |
CY2015 | us-gaap |
Provision For Doubtful Accounts
ProvisionForDoubtfulAccounts
|
5300000 | |
CY2015 | us-gaap |
Utilities Operating Expense Maintenance And Operations
UtilitiesOperatingExpenseMaintenanceAndOperations
|
67100000 | |
CY2015 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
300000 | |
CY2015 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
3530000 | |
CY2015 | us-gaap |
Interest Expense Short Term Borrowings
InterestExpenseShortTermBorrowings
|
900000 | |
CY2015 | us-gaap |
Interest Expense Long Term Debt
InterestExpenseLongTermDebt
|
22000000 | |
CY2015 | us-gaap |
Utilities Operating Expense Gas And Petroleum Purchased
UtilitiesOperatingExpenseGasAndPetroleumPurchased
|
100700000 | |
CY2015 | utl |
Proceeds From Repayments Of Debt And Capital Lease Obligations
ProceedsFromRepaymentsOfDebtAndCapitalLeaseObligations
|
6100000 | |
CY2015 | utl |
Stock Repurchase Program Fees And Expenses Related To Tender Offer
StockRepurchaseProgramFeesAndExpensesRelatedToTenderOffer
|
100000 | |
CY2015 | utl |
Change In Deferred Regulatory And Other Charges
ChangeInDeferredRegulatoryAndOtherCharges
|
8200000 | |
CY2015 | utl |
Regulatory Liability Interest Expense
RegulatoryLiabilityInterestExpense
|
900000 | |
CY2015 | utl |
Average Interest Rate On Debt
AverageInterestRateOnDebt
|
0.0232 | pure |
CY2015 | utl |
Effective Income Tax Rate Reconciliation Domestic Income Tax Rate Differential
EffectiveIncomeTaxRateReconciliationDomesticIncomeTaxRateDifferential
|
-0.02 | pure |
CY2015 | utl |
Increase Decrease In Gas Inventory Financing
IncreaseDecreaseInGasInventoryFinancing
|
-4000000 | |
CY2017 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
1.44 | |
CY2017 | us-gaap |
Defined Benefit Plan Narrative Description Of Basis Used To Determine Overall Expected Long Term Rate Of Return On Assets Assumption
DefinedBenefitPlanNarrativeDescriptionOfBasisUsedToDetermineOverallExpectedLongTermRateOfReturnOnAssetsAssumption
|
The desired investment objective is a long-term rate of return on assets that is approximately 5 – 6% greater than the assumed rate of inflation as measured by the Consumer Price Index. | |
CY2017 | dei |
Document Fiscal Period Focus
DocumentFiscalPeriodFocus
|
FY | |
CY2017 | dei |
Document Fiscal Year Focus
DocumentFiscalYearFocus
|
2017 | |
CY2017 | dei |
Document Type
DocumentType
|
10-K | |
CY2017 | dei |
Entity Well Known Seasoned Issuer
EntityWellKnownSeasonedIssuer
|
No | |
CY2017 | us-gaap |
Net Cash Provided By Used In Operating Activities Continuing Operations
NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
|
86200000 | |
CY2017 | dei |
Trading Symbol
TradingSymbol
|
UTL | |
CY2017 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
14102000 | shares |
CY2017 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
14095000 | shares |
CY2017 | dei |
Amendment Flag
AmendmentFlag
|
false | |
CY2017 | us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.06 | pure |
CY2017 | us-gaap |
Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service
PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService
|
0.0345 | pure |
CY2017 | us-gaap |
Regulatory Restrictions On Payment Of Dividends
RegulatoryRestrictionsOnPaymentOfDividends
|
Therefore, there were no restrictions on the Company's Retained Earnings at December 31, 2017 for the payment of dividends. | |
CY2017 | us-gaap |
Utilities Operating Expense Taxes
UtilitiesOperatingExpenseTaxes
|
21100000 | |
CY2017 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
9100000 | |
CY2017 | us-gaap |
Increase Decrease In Regulatory Liabilities
IncreaseDecreaseInRegulatoryLiabilities
|
-1200000 | |
CY2017 | us-gaap |
Interest Expense
InterestExpense
|
25500000 | |
CY2017 | us-gaap |
Net Cash Provided By Used In Investing Activities Continuing Operations
NetCashProvidedByUsedInInvestingActivitiesContinuingOperations
|
-119300000 | |
CY2017 | us-gaap |
Pension Expense
PensionExpense
|
7000000 | |
CY2017 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
33000000 | |
CY2017 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Shares Purchased For Award
ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesPurchasedForAward
|
1686 | shares |
CY2017 | us-gaap |
Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
|
7000 | shares |
CY2017 | us-gaap |
Weighted Average Number Of Share Outstanding Basic And Diluted
WeightedAverageNumberOfShareOutstandingBasicAndDiluted
|
14100000 | shares |
CY2017 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
1.44 | |
CY2017 | dei |
Current Fiscal Year End Date
CurrentFiscalYearEndDate
|
--12-31 | |
CY2017 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Credits
EffectiveIncomeTaxRateReconciliationTaxCredits
|
0.01 | pure |
CY2017 | dei |
Document Period End Date
DocumentPeriodEndDate
|
2017-12-31 | |
CY2017 | dei |
Entity Current Reporting Status
EntityCurrentReportingStatus
|
Yes | |
CY2017 | dei |
Entity Filer Category
EntityFilerCategory
|
Accelerated Filer | |
CY2017 | us-gaap |
Number Of Operating Segments
NumberOfOperatingSegments
|
3 | Segment |
CY2017 | us-gaap |
Use Of Estimates
UseOfEstimates
|
<div> <p style="text-indent: 4%; font-family: Times New Roman; font-size: 10.5pt; margin-top: 12pt; margin-bottom: 0pt;"> <b>Use of Estimates</b>—The preparation of financial statements in conformity with generally accepted accounting principles in the United States of America requires the Company to make estimates and assumptions that affect the reported amounts of assets and liabilities, and requires disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.</p> </div> | |
CY2017 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
2.06 | |
CY2017 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.38 | pure |
CY2017 | dei |
Entity Registrant Name
EntityRegistrantName
|
UNITIL CORP | |
CY2017 | dei |
Entity Voluntary Filers
EntityVoluntaryFilers
|
No | |
CY2017 | us-gaap |
Regulated And Unregulated Operating Revenue
RegulatedAndUnregulatedOperatingRevenue
|
406200000 | |
CY2017 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
119300000 | |
CY2017 | us-gaap |
Other Sales Revenue Net
OtherSalesRevenueNet
|
6000000 | |
CY2017 | us-gaap |
Interest Income Expense Nonoperating Net
InterestIncomeExpenseNonoperatingNet
|
-23100000 | |
CY2017 | us-gaap |
Increase Decrease In Unbilled Receivables
IncreaseDecreaseInUnbilledReceivables
|
3800000 | |
CY2017 | us-gaap |
Capital Lease Obligations Incurred
CapitalLeaseObligationsIncurred
|
3300000 | |
CY2017 | us-gaap |
Stock Issued During Period Value Share Based Compensation
StockIssuedDuringPeriodValueShareBasedCompensation
|
2100000 | |
CY2017 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
69700000 | |
CY2017 | us-gaap |
Net Income Loss
NetIncomeLoss
|
29000000 | |
CY2017 | us-gaap |
Interest Paid Net
InterestPaidNet
|
23000000 | |
CY2017 | us-gaap |
Interest And Other Income
InterestAndOtherIncome
|
2400000 | |
CY2017 | us-gaap |
Increase Decrease In Other Operating Capital Net
IncreaseDecreaseInOtherOperatingCapitalNet
|
-8600000 | |
CY2017 | us-gaap |
Increase Decrease In Accounts Receivable
IncreaseDecreaseInAccountsReceivable
|
14500000 | |
CY2017 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
17200000 | |
CY2017 | us-gaap |
Regulated Operating Revenue Gas
RegulatedOperatingRevenueGas
|
194000000 | |
CY2017 | us-gaap |
Payments Of Dividends
PaymentsOfDividends
|
20400000 | |
CY2017 | us-gaap |
Allowance For Doubtful Accounts Receivable Recoveries
AllowanceForDoubtfulAccountsReceivableRecoveries
|
600000 | |
CY2017 | us-gaap |
Accrual For Environmental Loss Contingencies Payments1
AccrualForEnvironmentalLossContingenciesPayments1
|
200000 | |
CY2017 | us-gaap |
Regulated Operating Revenue Electric Non Nuclear
RegulatedOperatingRevenueElectricNonNuclear
|
206200000 | |
CY2017 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
-100000 | |
CY2017 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
29000000 | |
CY2017 | us-gaap |
Increase Decrease In Receivables
IncreaseDecreaseInReceivables
|
-2500000 | |
CY2017 | us-gaap |
Increase Decrease In Other Current Assets And Liabilities Net
IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet
|
1800000 | |
CY2017 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
46500000 | |
CY2017 | us-gaap |
Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
|
1100000 | |
CY2017 | us-gaap |
Allowance For Doubtful Accounts Receivable Write Offs
AllowanceForDoubtfulAccountsReceivableWriteOffs
|
3800000 | |
CY2017 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
13675000 | |
CY2017 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
17500000 | |
CY2017 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
|
3862000 | |
CY2017 | us-gaap |
Dividends
Dividends
|
20400000 | |
CY2017 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
17537000 | |
CY2017 | us-gaap |
Utilities Operating Expense Depreciation And Amortization
UtilitiesOperatingExpenseDepreciationAndAmortization
|
46900000 | |
CY2017 | us-gaap |
Utilities Operating Expense Purchased Power
UtilitiesOperatingExpensePurchasedPower
|
114000000 | |
CY2017 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
0 | |
CY2017 | utl |
Effective Income Tax Rate Reconciliation Domestic Income Tax Rate Differential
EffectiveIncomeTaxRateReconciliationDomesticIncomeTaxRateDifferential
|
-0.01 | pure |
CY2016 | us-gaap |
Allowance For Doubtful Accounts Receivable Recoveries
AllowanceForDoubtfulAccountsReceivableRecoveries
|
600000 | |
CY2016 | us-gaap |
Accrual For Environmental Loss Contingencies Payments1
AccrualForEnvironmentalLossContingenciesPayments1
|
2700000 | |
CY2016 | us-gaap |
Stock Issued During Period Value New Issues
StockIssuedDuringPeriodValueNewIssues
|
1300000 | |
CY2016 | us-gaap |
Regulated Operating Revenue Electric Non Nuclear
RegulatedOperatingRevenueElectricNonNuclear
|
196100000 | |
CY2016 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
-300000 | |
CY2017 | us-gaap |
Proceeds From Repayments Of Short Term Debt
ProceedsFromRepaymentsOfShortTermDebt
|
-43600000 | |
CY2017 | us-gaap |
Restricted Stock Expense
RestrictedStockExpense
|
2700000 | |
CY2017 | us-gaap |
Utilities Operating Expense
UtilitiesOperatingExpense
|
336500000 | |
CY2017 | us-gaap |
Deferred Federal State And Local Tax Expense Benefit
DeferredFederalStateAndLocalTaxExpenseBenefit
|
17537000 | |
CY2017 | us-gaap |
Defined Benefit Plan Net Periodic Benefit Cost Credit Increase Decrease For Plan Amendment
DefinedBenefitPlanNetPeriodicBenefitCostCreditIncreaseDecreaseForPlanAmendment
|
540000 | |
CY2017 | us-gaap |
Lease And Rental Expense
LeaseAndRentalExpense
|
2000000 | |
CY2017 | us-gaap |
Net Cash Provided By Used In Financing Activities Continuing Operations
NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
|
36200000 | |
CY2017 | us-gaap |
Provision For Doubtful Accounts
ProvisionForDoubtfulAccounts
|
3700000 | |
CY2017 | us-gaap |
Utilities Operating Expense Maintenance And Operations
UtilitiesOperatingExpenseMaintenanceAndOperations
|
70200000 | |
CY2017 | us-gaap |
Accrual For Environmental Loss Contingencies Charges To Expense For New Losses
AccrualForEnvironmentalLossContingenciesChargesToExpenseForNewLosses
|
400000 | |
CY2017 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
3100000 | |
CY2017 | us-gaap |
Indefinite Lived Intangible Assets Translation And Purchase Accounting Adjustments
IndefiniteLivedIntangibleAssetsTranslationAndPurchaseAccountingAdjustments
|
2300000 | |
CY2017 | us-gaap |
Interest Expense Short Term Borrowings
InterestExpenseShortTermBorrowings
|
2500000 | |
CY2017 | us-gaap |
Interest Expense Long Term Debt
InterestExpenseLongTermDebt
|
21800000 | |
CY2017 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
89300000 | |
CY2017 | us-gaap |
Utilities Operating Expense Gas And Petroleum Purchased
UtilitiesOperatingExpenseGasAndPetroleumPurchased
|
84300000 | |
CY2017 | utl |
Change In Discount Rate Assumption
ChangeInDiscountRateAssumption
|
0.0025 | pure |
CY2017 | utl |
Proceeds From Repayments Of Debt And Capital Lease Obligations
ProceedsFromRepaymentsOfDebtAndCapitalLeaseObligations
|
-2500000 | |
CY2017 | utl |
Stock Repurchase Program Fees And Expenses Related To Tender Offer
StockRepurchaseProgramFeesAndExpensesRelatedToTenderOffer
|
100000 | |
CY2017 | utl |
Change In Deferred Regulatory And Other Charges
ChangeInDeferredRegulatoryAndOtherCharges
|
-6100000 | |
CY2017 | utl |
Percentage Of Fully Vested Restricted Stock Units That Directors Will Receive In Cash When Settled
PercentageOfFullyVestedRestrictedStockUnitsThatDirectorsWillReceiveInCashWhenSettled
|
0.30 | pure |
CY2017 | utl |
Number Of Subsidiaries
NumberOfSubsidiaries
|
3 | Entity |
CY2017 | utl |
Net Operating Loss Carryforwards Expiration Year
NetOperatingLossCarryforwardsExpirationYear
|
2029 | |
CY2016 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
27100000 | |
CY2016 | us-gaap |
Increase Decrease In Receivables
IncreaseDecreaseInReceivables
|
-2800000 | |
CY2016 | us-gaap |
Increase Decrease In Other Current Assets And Liabilities Net
IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet
|
1000000 | |
CY2016 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
42500000 | |
CY2016 | us-gaap |
Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
|
300000 | |
CY2017 | utl |
Percentage Of Fully Vested Restricted Stock Units That Directors Will Receive In Common Shares When Settled
PercentageOfFullyVestedRestrictedStockUnitsThatDirectorsWillReceiveInCommonSharesWhenSettled
|
0.70 | pure |
CY2017 | utl |
Regulatory Liability Interest Expense
RegulatoryLiabilityInterestExpense
|
1200000 | |
CY2017 | utl |
Average Interest Rate On Debt
AverageInterestRateOnDebt
|
0.0290 | pure |
CY2017 | utl |
Increase Decrease In Gas Inventory Financing
IncreaseDecreaseInGasInventoryFinancing
|
-2400000 | |
CY2017 | utl |
Length Of Pipeline
LengthOfPipeline
|
86 | mi |
CY2016 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
1.42 | |
CY2016 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.34 | pure |
CY2016 | us-gaap |
Net Cash Provided By Used In Operating Activities Continuing Operations
NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
|
68300000 | |
CY2016 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
13996000 | shares |
CY2016 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
13990000 | shares |
CY2016 | us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.04 | pure |
CY2016 | us-gaap |
Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service
PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService
|
0.0349 | pure |
CY2016 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Shares Purchased For Award
ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesPurchasedForAward
|
1949 | shares |
CY2016 | us-gaap |
Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
|
6000 | shares |
CY2016 | us-gaap |
Weighted Average Number Of Share Outstanding Basic And Diluted
WeightedAverageNumberOfShareOutstandingBasicAndDiluted
|
14000000 | shares |
CY2016 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
1.42 | |
CY2016 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Credits
EffectiveIncomeTaxRateReconciliationTaxCredits
|
0.01 | pure |
CY2016 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
1.94 | |
CY2016 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.36 | pure |
CY2016 | us-gaap |
Stock Issued During Period Shares New Issues
StockIssuedDuringPeriodSharesNewIssues
|
32095 | shares |
CY2016 | us-gaap |
Regulated And Unregulated Operating Revenue
RegulatedAndUnregulatedOperatingRevenue
|
383400000 | |
CY2016 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
98100000 | |
CY2016 | us-gaap |
Other Sales Revenue Net
OtherSalesRevenueNet
|
6100000 | |
CY2016 | us-gaap |
Interest Income Expense Nonoperating Net
InterestIncomeExpenseNonoperatingNet
|
-22500000 | |
CY2016 | us-gaap |
Increase Decrease In Unbilled Receivables
IncreaseDecreaseInUnbilledReceivables
|
11100000 | |
CY2016 | us-gaap |
Income Tax Reconciliation Tax Credits
IncomeTaxReconciliationTaxCredits
|
700000 | |
CY2016 | us-gaap |
Capital Lease Obligations Incurred
CapitalLeaseObligationsIncurred
|
3400000 | |
CY2016 | us-gaap |
Stock Issued During Period Value Share Based Compensation
StockIssuedDuringPeriodValueShareBasedCompensation
|
1900000 | |
CY2016 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
65300000 | |
CY2016 | us-gaap |
Net Income Loss
NetIncomeLoss
|
27100000 | |
CY2016 | us-gaap |
Interest Paid Net
InterestPaidNet
|
22100000 | |
CY2016 | us-gaap |
Interest And Other Income
InterestAndOtherIncome
|
1200000 | |
CY2016 | us-gaap |
Increase Decrease In Other Operating Capital Net
IncreaseDecreaseInOtherOperatingCapitalNet
|
-5000000 | |
CY2016 | us-gaap |
Increase Decrease In Accounts Receivable
IncreaseDecreaseInAccountsReceivable
|
5400000 | |
CY2016 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
19000000 | |
CY2016 | us-gaap |
Regulated Operating Revenue Gas
RegulatedOperatingRevenueGas
|
181200000 | |
CY2016 | us-gaap |
Payments Of Dividends
PaymentsOfDividends
|
20000000 | |
CY2016 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
1600000 | |
CY2016 | us-gaap |
Allowance For Doubtful Accounts Receivable Write Offs
AllowanceForDoubtfulAccountsReceivableWriteOffs
|
5300000 | |
CY2016 | us-gaap |
Contribution Of Property
ContributionOfProperty
|
3500000 | |
CY2016 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
11209000 | |
CY2016 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
15400000 | |
CY2016 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
|
4145000 | |
CY2016 | us-gaap |
Dividends
Dividends
|
20000000 | |
CY2016 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
15354000 | |
CY2016 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
-900000 | |
CY2016 | us-gaap |
Increase Decrease In Regulatory Liabilities
IncreaseDecreaseInRegulatoryLiabilities
|
-5200000 | |
CY2016 | us-gaap |
Interest Expense
InterestExpense
|
23700000 | |
CY2016 | us-gaap |
Net Cash Provided By Used In Investing Activities Continuing Operations
NetCashProvidedByUsedInInvestingActivitiesContinuingOperations
|
-98100000 | |
CY2016 | us-gaap |
Pension Expense
PensionExpense
|
6800000 | |
CY2016 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
1300000 | |
CY2016 | us-gaap |
Utilities Operating Expense Depreciation And Amortization
UtilitiesOperatingExpenseDepreciationAndAmortization
|
46600000 | |
CY2016 | us-gaap |
Utilities Operating Expense Purchased Power
UtilitiesOperatingExpensePurchasedPower
|
108000000 | |
CY2016 | us-gaap |
Utilities Operating Expense Taxes
UtilitiesOperatingExpenseTaxes
|
19600000 | |
CY2016 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
0 | |
CY2016 | us-gaap |
Proceeds From Repayments Of Short Term Debt
ProceedsFromRepaymentsOfShortTermDebt
|
39900000 | |
CY2016 | us-gaap |
Restricted Stock Expense
RestrictedStockExpense
|
2200000 | |
CY2016 | us-gaap |
Utilities Operating Expense
UtilitiesOperatingExpense
|
318100000 | |
CY2016 | us-gaap |
Deferred Federal State And Local Tax Expense Benefit
DeferredFederalStateAndLocalTaxExpenseBenefit
|
15354000 | |
CY2016 | us-gaap |
Lease And Rental Expense
LeaseAndRentalExpense
|
1800000 | |
CY2016 | us-gaap |
Net Cash Provided By Used In Financing Activities Continuing Operations
NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
|
26900000 | |
CY2016 | us-gaap |
Provision For Doubtful Accounts
ProvisionForDoubtfulAccounts
|
4600000 | |
CY2016 | us-gaap |
Utilities Operating Expense Maintenance And Operations
UtilitiesOperatingExpenseMaintenanceAndOperations
|
66300000 | |
CY2016 | us-gaap |
Accrual For Environmental Loss Contingencies Charges To Expense For New Losses
AccrualForEnvironmentalLossContingenciesChargesToExpenseForNewLosses
|
1800000 | |
CY2016 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
-2900000 | |
CY2016 | us-gaap |
Interest Expense Short Term Borrowings
InterestExpenseShortTermBorrowings
|
1400000 | |
CY2016 | us-gaap |
Interest Expense Long Term Debt
InterestExpenseLongTermDebt
|
21800000 | |
CY2016 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
30000000 | |
CY2016 | us-gaap |
Utilities Operating Expense Gas And Petroleum Purchased
UtilitiesOperatingExpenseGasAndPetroleumPurchased
|
77600000 | |
CY2016 | utl |
Proceeds From Repayments Of Debt And Capital Lease Obligations
ProceedsFromRepaymentsOfDebtAndCapitalLeaseObligations
|
-2800000 | |
CY2016 | utl |
Stock Repurchase Program Fees And Expenses Related To Tender Offer
StockRepurchaseProgramFeesAndExpensesRelatedToTenderOffer
|
100000 | |
CY2016 | utl |
Change In Deferred Regulatory And Other Charges
ChangeInDeferredRegulatoryAndOtherCharges
|
-5000000 | |
CY2016 | utl |
Regulatory Liability Interest Expense
RegulatoryLiabilityInterestExpense
|
500000 | |
CY2016 | utl |
Average Interest Rate On Debt
AverageInterestRateOnDebt
|
0.0218 | pure |
CY2016 | utl |
Effective Income Tax Rate Reconciliation Domestic Income Tax Rate Differential
EffectiveIncomeTaxRateReconciliationDomesticIncomeTaxRateDifferential
|
-0.01 | pure |
CY2016 | utl |
Increase Decrease In Gas Inventory Financing
IncreaseDecreaseInGasInventoryFinancing
|
-2500000 | |
CY2017Q1 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.360 | |
CY2017Q1 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
0.88 | |
CY2017Q1 | us-gaap |
Regulated And Unregulated Operating Revenue
RegulatedAndUnregulatedOperatingRevenue
|
126000000 | |
CY2017Q1 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
26100000 | |
CY2017Q1 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
12400000 | |
CY2016Q1 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.355 | |
CY2016Q1 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
0.78 | |
CY2016Q1 | us-gaap |
Regulated And Unregulated Operating Revenue
RegulatedAndUnregulatedOperatingRevenue
|
125800000 | |
CY2016Q1 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
23400000 | |
CY2016Q1 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
10900000 | |
CY2016Q2 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.355 | |
CY2016Q2 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
0.18 | |
CY2016Q2 | us-gaap |
Regulated And Unregulated Operating Revenue
RegulatedAndUnregulatedOperatingRevenue
|
74500000 | |
CY2016Q2 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
9500000 | |
CY2016Q2 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
2500000 | |
CY2017Q2 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.360 | |
CY2017Q2 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
0.23 | |
CY2017Q2 | us-gaap |
Regulated And Unregulated Operating Revenue
RegulatedAndUnregulatedOperatingRevenue
|
80800000 | |
CY2017Q2 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
10500000 | |
CY2017Q2 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
3100000 | |
CY2016Q3 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.355 | |
CY2016Q3 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
0.25 | |
CY2016Q3 | us-gaap |
Regulated And Unregulated Operating Revenue
RegulatedAndUnregulatedOperatingRevenue
|
78800000 | |
CY2016Q3 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
11100000 | |
CY2016Q3 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
3500000 | |
CY2017Q3 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.360 | |
CY2017Q3 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
0.16 | |
CY2017Q3 | us-gaap |
Regulated And Unregulated Operating Revenue
RegulatedAndUnregulatedOperatingRevenue
|
84000000 | |
CY2017Q3 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
9500000 | |
CY2017Q3 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
2300000 | |
CY2016Q4 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.355 | |
CY2016Q4 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
0.73 | |
CY2016Q4 | us-gaap |
Regulated And Unregulated Operating Revenue
RegulatedAndUnregulatedOperatingRevenue
|
104300000 | |
CY2016Q4 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
21300000 | |
CY2016Q4 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
10200000 | |
CY2017Q4 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.360 | |
CY2017Q4 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
0.79 | |
CY2017Q4 | us-gaap |
Regulated And Unregulated Operating Revenue
RegulatedAndUnregulatedOperatingRevenue
|
115400000 | |
CY2017Q4 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
23600000 | |
CY2017Q4 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
11200000 |