XML 41 R27.htm IDEA: XBRL DOCUMENT
v3.20.4

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies) | 12 Months Ended
--- | ---
Dec. 31, 2020
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract] |
Basis of Presentation | Basis of Presentation The audited consolidated financial statements are presented in accordance with the requirements of Form 10-K and accounting principles generally accepted in the United States and consequently include all the disclosures required in the consolidated financial statements included in the Company's annual report on Form 10-K. The accompanying consolidated financial statements include the accounts of Artesian Resources Corporation and its subsidiaries and all intercompany balances and transactions between subsidiaries have been eliminated.
Utility Subsidiary Accounting | Utility Subsidiary Accounting The accounting records of Artesian Water Company, Inc., or Artesian Water, and Artesian Wastewater Management, Inc., or Artesian Wastewater, are maintained in accordance with the uniform system of accounts as prescribed by the Delaware Public Service Commission, or the DEPSC. The accounting records of Artesian Water Pennsylvania, Inc., or Artesian Water Pennsylvania, are maintained in accordance with the uniform system of accounts as prescribed by the Pennsylvania Public Utility Commission, or the PAPUC. The accounting records of Artesian Water Maryland, Inc., or Artesian Water Maryland, and Artesian Wastewater Maryland, Inc., or Artesian Wastewater Maryland, are maintained in accordance with the uniform system of accounts as prescribed by the Maryland Public Service Commission, or the MDPSC. All five subsidiaries follow the provisions of Financial Accounting Standards Board, or FASB, ASC Topic 980, which provides guidance for companies in regulated industries. These regulated subsidiaries account for the majority of our operating revenue. The operating revenues of our non-regulated division are presented in the Consolidated Statements of Operations.
Utility Plant | Utility Plant Utility plant is stated at original cost. Cost includes direct labor, materials, AFUDC (see description below) and indirect charges for such capitalized items as transportation, supervision, pension, medical, and other fringe benefits related to employees engaged in construction activities. When depreciable units of utility plant are retired, the historical costs of plant retired is charged to accumulated depreciation. Any cost associated with retirement, less any salvage value or proceeds received, is charged to the regulated retirement liability. Maintenance, repairs, and replacement of minor items of utility plant are charged to expense as incurred. In accordance with a rate order issued by the DEPSC, Artesian Water and Artesian Wastewater accrue an Allowance for Funds Used during Construction, or AFUDC. AFUDC, which represents the cost of funds devoted to construction projects through the date the project is placed in service, is capitalized as part of construction work in progress. The rate used for the AFUDC calculation is based on Artesian Water's and Artesian Wastewater’s weighted average cost of debt and the rate of return on equity authorized by the DEPSC. The rate used to capitalize AFUDC for Artesian Water in 2020, 2019, and 2018 was 7.0%, 7.1%, and 7.4%, respectively. The rate used to capitalize AFUDC for Artesian Wastewater in 2020, 2019, and 2018 was 6.3%, 7.1%, and 5.9%, respectively.
Utility plant comprises: |  |  |  |  |  |
In thousands |  |  |  |  |  |
|  |  |  |  | December 31, |
|  | Estimated Useful Life (In Years) |  |  | 2020 |  |  | 2019 |
Utility plant at original cost |  |  |  |  |  |  |  |  |
Utility plant in service-Water |  |  |  |  |  |  |  |  |
Intangible plant |  |  | — |  |  | $ | 140 |  |  | $ | 140 |
Source of supply plant |  |  | 45-85 |  |  |  | 23,940 |  |  |  | 22,611 |
Pumping and water treatment plant |  |  | 8-62 |  |  |  | 100,317 |  |  |  | 90,795 |
Transmission and distribution plant |  |  |  |  |  |  |  |  |  |  |  |
Mains |  |  | 81 |  |  |  | 293,643 |  |  |  | 277,125 |
Services |  |  | 39 |  |  |  | 49,937 |  |  |  | 48,190 |
Storage tanks |  |  | 76 |  |  |  | 29,946 |  |  |  | 27,968 |
Meters |  |  | 26 |  |  |  | 27,994 |  |  |  | 27,498 |
Hydrants |  |  | 60 |  |  |  | 15,895 |  |  |  | 15,071 |
General plant |  |  | 5-31 |  |  |  | 62,379 |  |  |  | 61,512 |
Utility plant in service-Wastewater |  |  |  |  |  |  |  |  |  |  |  |
Intangible plant |  |  | — |  |  |  | 116 |  |  |  | — |
Treatment and disposal plant |  |  | 21-81 |  |  |  | 41,860 |  |  |  | 19,315 |
Collection mains & lift stations |  |  | 81 |  |  |  | 32,133 |  |  |  | 19,348 |
General plant |  |  | 5-31 |  |  |  | 1,545 |  |  |  | 1,223 |
Property held for future use |  |  | — |  |  |  | 5,711 |  |  |  | 24,632 |
Construction work in progress |  |  | — |  |  |  | 21,474 |  |  |  | 31,881 |
|  |  |  |  |  |  | 707,030 |  |  |  | 667,309 |
Less – accumulated depreciation |  |  |  |  |  |  | 147,469 |  |  |  | 136,588 |
|  |  |  |  |  | $ | 559,561 |  |  | $ | 530,721 |
Depreciation and Amortization | Depreciation and Amortization For financial reporting purposes, depreciation is recorded using the straight-line method at rates based on estimated economic useful lives, which range from 5 to 85 years. Composite depreciation rates for water utility plant were 2.23%, 2.27% and 2.28% for 2020, 2019 and 2018, respectively. In a rate order issued by the DEPSC, the Company was directed effective January 1, 1998 to begin using revised depreciation rates for utility plant. In rate orders issued by the DEPSC, Artesian Water was directed, effective May 28, 1991 and August 25, 1992, to offset depreciation recorded on utility plant by depreciation on utility property funded by Contributions in Aid of Construction, or CIAC, and Advances for Construction, or Advances, respectively. This reduction in depreciation expense is also applied to outstanding CIAC and Advances. Other deferred assets are amortized using the straight-line method over applicable lives, which range from 20 to 24 years.
Regulatory Assets | Regulatory Assets The FASB ASC Topic 980 stipulates generally accepted accounting principles for companies whose rates are established or subject to approvals by a third-party regulatory agency. Certain expenses are recoverable through rates charged to our customers, without a return on investment, and are deferred and amortized during future periods using various methods as permitted by the DEPSC, MDPSC, and PAPUC. The deferred income taxes will be amortized over future years as the tax effects of temporary differences that previously flowed through to our customers are reversed. Debt related costs include debt issuance costs and other debt related expense. The DEPSC has approved deferred regulatory accounting treatment for issuance costs associated with Artesian Water’s Series V First Mortgage bond in December 2019 that paid down outstanding lines of credit and a loan payable to Artesian Resources. Debt issuance costs and other debt related expenses are reviewed during Artesian Water’s rate applications as part of its cost of capital calculations. For the Series V First Mortgage bond, cash was paid for the issuance costs and $30 million of cash was received from the proceeds of the bond. Regulatory expenses amortized on a straight-line basis are noted below:
Expense | Years Amortized
Rate case studies | 5
Delaware rate proceedings | 2.5
Maryland rate proceedings | 5
Debt related costs | 15 to 30 (based on term of related debt)
Goodwill (resulting from acquisition of Mountain Hill Water Company in 2008) | 50
Deferred acquisition costs (resulting from purchase of water assets in Cecil County, Maryland in 2011 and Port Deposit, Maryland in 2010) | 20
Franchise Costs (resulting from purchase of water assets in Cecil County, Maryland in 2011) | 80
Regulatory assets, net of amortization, comprise:
(in thousands) |  | December 31, 2020 |  |  | December 31, 2019 |
Deferred income taxes |  | $ | 370 |  |  | $ | 386 |
Expense of rate case studies and other |  |  | 46 |  |  |  | 78 |
Debt related costs |  |  | 5,233 |  |  |  | 5,556 |
Goodwill |  |  | 281 |  |  |  | 288 |
Deferred acquisition and franchise costs |  |  | 543 |  |  |  | 583 |
|  | $ | 6,473 |  |  | $ | 6,891 |
Impairment or Disposal of Long-Lived Assets | Impairment or Disposal of Long-Lived Assets Our long-lived assets consist primarily of utility plant in service and regulatory assets. A review of our long-lived assets is performed in accordance with the requirements of FASB ASC Topic 360. In addition, the regulatory assets are reviewed for the continued application of FASB ASC Topic 980. The review determines whether there have been changes in circumstances or events that have occurred requiring adjustments to the carrying value of these assets. FASB ASC Topic 980 stipulates that adjustments to the carrying value of these assets would be made in instances where the inclusion in the rate-making process is unlikely. For the years ended December 31, 2020, 2019 and 2018, there was no impairment or regulatory disallowance identified in our review.
Other Deferred Assets | Other Deferred Assets The investment in CoBank, which is a cooperative bank, is related to certain outstanding First Mortgage Bonds and is a required investment in the bank based on the underlying long-term debt agreements. Goodwill is a result of the acquisition of water assets from the Town of Frankford in April 2020 based on the purchase price allocation. The DEPSC will evaluate this amount in Artesian Water’s next base rate case to determine the appropriate ratemaking treatment of the acquisition price and the assets acquired. A large portion of the remaining other deferred assets, approximately $0.2 million, is in relation to the Mountain Hill acquisition. Other deferred assets at December 31, net of amortization, comprise:
In thousands |  | 2020 |  |  | 2019 |
Investment in CoBank |  | $ | 4,374 |  |  | $ | 3,968 |
Goodwill |  |  | 623 |  |  |  | — |
Other |  |  | 312 |  |  |  | 289 |
|  | $ | 5,309 |  |  | $ | 4,257 |
Advances for Construction | Advances for Construction Cash advances to reimburse Artesian Water for its costs to construct water mains, services and hydrants are contributed to Artesian Water by real estate developers and builders in order to extend water service to their properties. The value of these contributions is recorded as Advances for Construction. Artesian Water makes refunds on these advances over a specific period of time based on operating revenues generated by the specific plant or as new customers are connected to the mains. After all refunds are made within the contract period, any remaining balance is transferred to CIAC.
Contributions in Aid of Construction | Contributions in Aid of Construction CIAC includes the non-refundable portion of advances for construction and direct contributions of water mains, services and hydrants, and wastewater treatment facilities and collection systems, or cash to reimburse our water and wastewater divisions for costs to construct water mains, services and hydrants, and wastewater treatment and disposal plant. Effective with the Tax Cuts and Jobs Act, or TCJA, CIAC is now taxable and the DEPSC, MDPSC and PAPUC allow the Company to collect additional CIAC to pay the associated tax.
Regulatory Liabilities | Regulatory Liabilities FASB ASC Topic 980 stipulates generally accepted accounting principles for companies whose rates are established or subject to approvals by a third-party regulatory agency. Certain obligations are deferred and/or amortized as determined by the DEPSC, MDPSC, and PAPUC. Regulatory liabilities represent excess recovery of cost or other items that have been deferred because it is probable such amounts will be returned to customers through future regulated rates. Utility plant retirement cost obligation consists of estimated costs related to the potential removal and replacement of facilities and equipment on the Company’s water and wastewater properties. Effective January 1, 2012, as authorized by the DEPSC, when depreciable units of utility plant are retired, any cost associated with retirement, less any salvage value or proceeds received, is charged to a regulated retirement liability. Each year the liability is increased by an annual amount authorized by the DEPSC. Pursuant to the enactment of the TCJA on December 22, 2017, the Company adjusted its existing deferred income tax balances to reflect the decrease in the corporate income tax rate from 34% to 21% (see Note 5) resulting in a decrease in the net deferred income tax liability of $24.3 million, of which $22.8 million was reclassified to a regulatory liability based on DEPSC orders dated January 31, 2019 for Artesian Water and Artesian Wastewater. The regulatory liability amount is subject to certain Internal Revenue Service normalization rules that require the benefits to customers be spread over the remaining useful life of the underlying assets giving rise to the associated deferred income taxes. On January 31, 2019, the DEPSC approved the amortization of the regulatory liability amount of $22.2 million over a period of 49.5 years beginning February 1, 2018, subject to audit at a later date. The MDPSC has not issued a final order on the regulatory liability amount of $0.6 million regarding the effects of the TCJA on Maryland customers.
Regulatory liabilities comprise: |
|  | (in thousands) |
|  | December 31, 2020 |  |  | December 31, 2019 |
Utility plant retirement cost obligation |  | $ | 126 |  |  | $ | 247 |
Deferred income taxes (related to TCJA) |  |  | 21,555 |  |  |  | 21,999 |
|  | $ | 21,681 |  |  | $ | 22,246 |
Income Taxes | Income Taxes The TCJA made many changes to the Internal Revenue Code. The most significant change impacting Artesian Resources is the reduction of the corporate federal income tax rate from our previous effective rate of 34% to the new flat tax rate of 21% beginning January 1, 2018. Deferred income taxes are provided in accordance with FASB ASC Topic 740 on all differences between the tax basis of assets and liabilities and the amounts at which they are carried in the consolidated financial statements based on the enacted tax rates expected to be in effect when such temporary differences are expected to reverse. The Company’s rate regulated utilities recognize regulatory liabilities, to the extent considered in ratemaking, for deferred taxes provided in excess of the current statutory tax rate and regulatory assets for deferred taxes provided at rates less than the current statutory rate. Such tax-related regulatory assets and liabilities are reported at the revenue requirement level and amortized to income as the related temporary differences reverse, generally over the lives of the related properties. Under FASB ASC Topic 740, an uncertain tax position represents our expected treatment of a tax position taken, or planned to be taken in the future, that has not been reflected in measuring income tax expense for financial reporting purposes. The Company establishes reserves for uncertain tax positions based upon management's judgment as to the sustainability of these positions. These accounting estimates related to the uncertain tax position reserve require judgments to be made as to the sustainability of each uncertain tax position based on its technical merits. The Company believes its tax positions comply with applicable law and that it has adequately recorded reserves as required. However, to the extent the final tax outcome of these matters is different than the estimates recorded, the Company would then adjust its tax reserves or unrecognized tax benefits in the period that this information becomes known. The statute of limitations for the 2015 Corporate tax returns lapsed during the third quarter of 2019, which resulted in the reversal of the reserve in the amount of approximately $73,000. The statute of limitations for the 2016 Corporate tax returns lapsed during the fourth quarter of 2020. The Company has elected to recognize accrued interest (net of related tax benefits) and penalties related to uncertain tax positions as a component of its income tax expense. The Company has accrued approximately $21,000 in penalties and interest for the year ended December 31, 2020. The Company remains subject to examination by federal and state authorities for the tax years 2017 through 2020. The Tax Reform Act of 1986 mandated that Advances and CIAC received subsequent to December 31, 1986, generally are taxable income. The 1996 Tax Act provided an exclusion from taxable income for CIAC and Advances received after June 12, 1996 except for certain contributions for large services that are not included in rate base for rate-making purposes. On December 22, 2017, the TCJA repealed the 1996 exclusion from gross income effective prospectively on the enactment date. Investment tax credits were deferred through 1986 and are recognized as a reduction of deferred income tax expense over the estimated economic useful lives of the related assets.
Stock Compensation Plans | Stock Compensation Plans On December 9, 2015, the Company’s stockholders approved the 2015 Equity Compensation Plan, or the 2015 Plan. The 2015 Plan replaced the 2005 Equity Compensation Plan, or the 2005 Plan, which expired on May 24, 2015. The 2015 Plan authorizes an aggregate number of shares of our Class A Non-Voting Common Stock, or Class A Stock, that may be issued or transferred under the 2015 Plan equal to the sum of: 331,500 shares, plus the number of shares of Class A Stock subject to outstanding grants under the 2005 Plan as of December 9, 2015 that terminate, expire or are cancelled, forfeited, exchanged or surrendered without having been exercised, vested or paid under the 2005 Plan. The Company accounts for stock options issued after January 1, 2006 under FASB ASC Topic 718. Compensation costs for restricted stock grants and options were $178,000, $181,000 and $192,000 in 2020, 2019 and 2018, respectively. Cost for options and restricted stock grants were determined based on the fair value at the grant dates and those costs were charged to income over the associated service periods. As of December 31, 2020, there was $59,900 of unrecognized expense related to non-vested awards of restricted shares granted under the 2015 Plan. There was no stock compensation cost capitalized as part of an asset. Stock Options No options were granted in 2018, 2019 or 2020. Shares of Class A Stock have been reserved for future issuance under the 2015 Plan. Stock Awards On May 6, 2020, 5,000 shares of Class A Stock were granted as restricted stock awards. The fair value per share was $35.01, the closing price of the Class A Stock as recorded on the Nasdaq Global Select Market on May 6, 2020. Prior to their release date, these restricted stock awards may be subject to forfeiture in the event of the recipient’s termination of service. On May 8, 2019, 5,000 shares of Class A Stock were granted as restricted stock awards. The fair value per share was $36.11, the closing price of the Class A Stock as recorded on the Nasdaq Global Select Market on May 8, 2019. Prior to their release date, these restricted stock awards may be subject to forfeiture in the event of the recipient’s termination of service. On May 2, 2018, 5,000 shares of Class A were granted as restricted stock awards. The fair value per share was $38.51, the closing price of the Class A Stock as recorded on the Nasdaq Global Select Market on May 2, 2018. Prior to their release date, these restricted stock awards may be subject to forfeiture in the event of the recipient’s termination of service.
Revenue Recognition and Unbilled Revenues | Revenue Recognition and Unbilled Revenues See Note 2 to our Consolidated Financial Statements for a full description of our revenue recognition.
Leases | Leases In the first quarter of 2019 the Company adopted ASC 842, the new standard on leases. The Company elected the practical expedient not to evaluate land easements that existed prior to implementation and were not previously accounted for as leases. The Company also elected not to recognize Right-of-use assets and lease liabilities for short-term leases that have a lease term of 12 months or less. The Company has agreements for land easements and office equipment under operating leases. The Company evaluated each lease agreement to determine whether the lease was to be accounted for as an operating or financing lease. It was determined that all leases subject to this new standard are operating leases and are recognized on a straight line basis. Management makes certain estimates and assumptions regarding each lease agreement, renewal and amendment, including, but not limited to, discount rates and probable term, which can impact the escalations in payment that are taken into consideration when calculating the straight line basis. The amount of rent expense and income reported could vary if different estimates and assumptions are used. Management also makes certain estimates and assumptions regarding the fair value of the leased property at lease commencement and the separation of lease and nonlease components. See Note 3 to our Consolidated Financial Statements for a full description of our leases.
Accounts Receivable | Accounts Receivable Accounts receivable are recorded at the invoiced amounts. An allowance for doubtful accounts is calculated as a percentage of total associated revenues based upon historical trends and adjusted for current conditions. We mitigate our exposure to credit losses by discontinuing services in the event of non-payment; accordingly, the related allowance for doubtful accounts and associated bad debt expense has not been significant. However, due to the coronavirus pandemic, or COVID-19, causing hardships for many utility customers, state government agencies issued executive orders in March 2020 requiring utility companies to take a number of steps to support their customers and communities, including prohibiting service disconnections for non-payment and prohibiting late fees. The Company experienced longer receivable cycles throughout 2020 and made an adjustment to increase the reserve for bad debt in the amount of $0.5 million. Account balances are written off against the allowance when it is probable the receivable will not be recovered. The allowance for doubtful accounts was $0.9 million and $0.3 million at December 31, 2020 and December 31, 2019, respectively. The corresponding expense for each of the years ended December 31, 2020 and 2019 was $0.8 million and $0.2 million, respectively. The following table summarizes the changes in the Company’s accounts receivable balance:
|  | December 31, |
In thousands |  | 2020 |  |  | 2019 |
Customer accounts receivable – water |  | $ | 6,707 |  |  | $ | 5,574 |
Customer accounts receivable – wastewater |  |  | 1,717 |  |  |  | 209 |
Miscellaneous accounts receivable |  |  | 699 |  |  |  | 402 |
CIAC receivable |  |  | 1,901 |  |  |  | 992 |
|  |  | 11,024 |  |  |  | 7,177 |
Less allowance for doubtful accounts |  |  | 862 |  |  |  | 264 |
Net accounts receivable |  | $ | 10,162 |  |  | $ | 6,913 |
The activities in the allowance for doubtful accounts are as follows:
|  | December 31, |
In thousands |  | 2020 |  |  | 2019 |
Beginning balance |  | $ | 264 |  |  | $ | 232 |
Allowance adjustments |  |  | 754 |  |  |  | 198 |
Recoveries |  |  | 13 |  |  |  | 34 |
Write off of uncollectible accounts |  |  | (169 | ) |  |  | (200 | )
Ending balance |  | $ | 862 |  |  | $ | 264 |
Cash and Cash Equivalents | Cash and Cash Equivalents For purposes of the Consolidated Statement of Cash Flows, Artesian Resources considers all temporary cash investments with an original maturity of three months or less to be cash equivalents.Artesian Resources and its subsidiaries utilize their bank's zero balance account disbursement service to reduce the use of their lines of credit by funding checks as they are presented to the bank for payment rather than at issuance. If the checks currently outstanding, but not yet funded, exceed the cash balance on our books, the net liability is recorded as a current liability on the Consolidated Balance Sheet in the Overdraft Payable account.
Use of Estimates in the Preparation of Consolidated Financial Statements | Use of Estimates in the Preparation of Consolidated Financial Statements The consolidated financial statements were prepared in conformity with generally accepted accounting principles in the U.S., which require management to make estimates about the reported amounts of assets and liabilities including unbilled revenues, reserve for a portion of revenues received under temporary rates and regulatory asset recovery and contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from management's estimates. Management makes certain estimates and assumptions regarding each lease agreement, renewal and amendment, including, but not limited to, discount rates and probable term, which can impact the escalations in payment that are taken into consideration when calculating the straight line basis. The amount of rent expense and income reported could vary if different estimates and assumptions are used. Management also makes certain estimates and assumptions regarding the fair value of the leased property at lease commencement and the separation of lease and nonlease components. The ultimate impact from COVID-19 on the Company’s operations and financial results will depend on, among other things, the severity and scope of the pandemic and full impact of governmental restrictions and executive orders issued. We are not able to fully quantify the impact that these factors will have on our future financial results. Management has made certain estimates and assumptions regarding credit losses and reserves for bad debt related to the executive orders issued by state government agencies in March 2020 requiring utility companies to temporarily prohibit late fees and service disconnections for non-payment. In July 2020, the State of Delaware lifted its executive orders placing a moratorium on service disconnections for non-payment, with a provision requiring utilities to offer payment arrangements extending at least four months to customers. After properly notifying customers, Artesian reinstated its late fee process in September 2020 and began administering service disconnections in October 2020 for its Delaware customers. The State of Maryland and the Commonwealth of Pennsylvania lifted their executive orders placing moratoriums on service disconnections for non-payment effective November 2020. The State of Maryland requires utilities to offer payment arrangements extending twelve months. The DEPSC and the MDPSC issued orders authorizing utilities deferred regulatory treatment for incremental costs related to COVID-19.

X
- Definition Disclosure of accounting policy for contributions in aid of construction. + References No definition available. + Details
Name: | artna_ContributionsInAidOfConstructionsPolicyTextBlock
Namespace Prefix: | artna_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for utility subsidiary accounting. + References No definition available. + Details
Name: | artna_UtilitySubsidiaryAccountingPolicyTextBlock
Namespace Prefix: | artna_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for basis of accounting, or basis of presentation, used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS). + References No definition available. + Details
Name: | us-gaap_BasisOfAccountingPolicyPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for cash and cash equivalents, including the policy for determining which items are treated as cash equivalents. Other information that may be disclosed includes (1) the nature of any restrictions on the entity's use of its cash and cash equivalents, (2) whether the entity's cash and cash equivalents are insured or expose the entity to credit risk, (3) the classification of any negative balance accounts (overdrafts), and (4) the carrying basis of cash equivalents (for example, at cost) and whether the carrying amount of cash equivalents approximates fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4273-108586 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790 + Details
Name: | us-gaap_CashAndCashEquivalentsPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for salaries, bonuses, incentive awards, postretirement and postemployment benefits granted to employees, including equity-based arrangements; discloses methodologies for measurement, and the bases for recognizing related assets and liabilities and recognizing and reporting compensation expense. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b),(f(1)) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=84158767&loc=d3e18726-107790 + Details
Name: | us-gaap_CompensationRelatedCostsPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for construction contractors. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 910 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=119991564&loc=SL119991576-234733 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 910 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6471471&loc=d3e48698-109348 + Details
Name: | us-gaap_ConstructionContractorsPolicyPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for deferral and amortization of significant deferred charges. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_DeferredChargesPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for depreciation, depletion, and amortization of property and equipment costs, including methods used and estimated useful lives and how impairment of such assets is assessed and recognized. + References No definition available. + Details
Name: | us-gaap_DepreciationDepletionAndAmortizationPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for recognizing and measuring the impairment of long-lived assets. An entity also may disclose its accounting policy for long-lived assets to be sold. This policy excludes goodwill and intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 05 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=109226317&loc=d3e202-110218 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.CC) -URI http://asc.fasb.org/extlink&oid=27011434&loc=d3e125687-122742 + Details
Name: | us-gaap_ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for income taxes, which may include its accounting policies for recognizing and measuring deferred tax assets and liabilities and related valuation allowances, recognizing investment tax credits, operating loss carryforwards, tax credit carryforwards, and other carryforwards, methodologies for determining its effective income tax rate and the characterization of interest and penalties in the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=120406818&loc=d3e32247-109318 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32847-109319 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 954 -SubTopic 740 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6491622&loc=d3e9504-115650 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32840-109319 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=116657188&loc=SL116659661-227067 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32639-109319 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=120406818&loc=d3e32280-109318 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 17 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32809-109319 + Details
Name: | us-gaap_IncomeTaxPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for leasing arrangement entered into by lessee. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918666-209980 + Details
Name: | us-gaap_LesseeLeasesPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for public utilities. Examples include a discussion about the scope criteria and appropriateness for and extent of the application of generally accepted accounting principles related to accounting for the effects of certain types of regulation (may include identification of specific business units). Other examples of the disclosures may include: descriptions of the form and economic effects of regulation (for example, but not limited to, recording of regulatory assets and liabilities to the rate setting process); statement about periodic assessments of periodic assessments of generally accepted accounting principles related to accounting for the effects of certain types of regulation; information regarding amortization of and return on regulatory assets and liabilities, including the remaining amounts and recovery or settlement periods; accounting for changes to recovery estimates; AFUDC, plant abandonment's and plant disallowances. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 10 -Section 05 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=79984601&loc=d3e39995-110364 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790 + Details
Name: | us-gaap_PublicUtilitiesPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for receivable. Includes, but is not limited to, accounts receivable and financing receivable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5033-111524 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=84159169&loc=d3e10178-111534 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=84159169&loc=d3e10149-111534 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=84159169&loc=d3e10133-111534 + Details
Name: | us-gaap_ReceivablesPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for systematically allocating capitalized costs to periods that benefit from the use thereof. Includes, but is not limited to, methods used, such as composite depreciation, descriptions of regulatory treatment for estimated removal and disposal costs, and description of amortization of plant-related regulatory assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b),(c) -URI http://asc.fasb.org/extlink&oid=84158767&loc=d3e18823-107790 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790 + Details
Name: | us-gaap_RegulatoryDepreciationAndAmortizationPolicy
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for income taxes, including investment tax credits, and the related regulatory treatment (for example, whether deferred income tax accounting - normalization - is allowed in rate making). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 740 -Section 25 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6501382&loc=d3e54136-110423 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 740 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6501382&loc=d3e54053-110423 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790 + Details
Name: | us-gaap_RegulatoryIncomeTaxesPolicy
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for revenue. Includes revenue from contract with customer and from other sources. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=84158767&loc=d3e18823-107790 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=84158767&loc=d3e18823-107790 + Details
Name: | us-gaap_RevenueRecognitionPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6191-108592 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6161-108592 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6143-108592 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6061-108592 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6132-108592 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592 + Details
Name: | us-gaap_UseOfEstimates
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration