Goodwill and Intangible Assets	2 Months Ended
Goodwill and Intangible Assets	Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	GOODWILL AND INTANGIBLE ASSETS GOODWILL As of December 31, 2016 and October 31, 2016, we have $48.9 million of recorded goodwill related to the regulated utility prior to the Acquisition. IMPAIRMENT TESTING We are required to perform an annual goodwill impairment test as of the same date each year. With the change in our year end as discussed in Note 1, we have changed the date of our annual impairment testing of goodwill from October 31 to August 31 to align with our parent, Duke Energy. There have been no events or circumstances to occur since our annual goodwill assessment was performed as of October 31, 2016 that would more likely than not reduce the fair value of our reporting unit below its carrying value. The fair value of our reporting unit substantially exceeded the carrying value as of the most recent annual impairment analysis. Therefore, no impairment charges were recorded during the two months ended December 31, 2016. On a quarterly basis, or when events or changes in circumstances indicate, we evaluate our investments in unconsolidated affiliates and long-lived assets for impairment. There have been no events or circumstances during the two months ended December 31, 2016 that resulted in any impairment charges. See Note 11 for further information on our other-than-temporary impairment (OTTI) assessment of one of our investments in an unconsolidated affiliate.

The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss.