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SEGMENT INFORMATION (Tables) | 9 Months Ended
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Sep. 30, 2018
Significant Segment Financial Data | The following table provides significant segment financial data for the three and nine months ended September 30, 2018 and September 30, 2017 and as of December 31, 2017 (millions):
|  | Gas |  |  | Electric |  |  | Non- Regulated |  |  | Other |  |  | Total |
Three Months Ended September 30, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Billed and Unbilled Revenue |  | $ | 19.6 |  |  | $ | 60.9 |  |  | $ | — |  |  | $ | — |  |  | $ | 80.5 |
Rate Adjustment Mechanism Revenue |  |  | 6.1 |  |  |  | 0.5 |  |  |  | — |  |  |  | — |  |  |  | 6.6 |
Other Operating Revenue – Non-Regulated |  |  | — |  |  |  | — |  |  |  | 1.1 |  |  |  | — |  |  |  | 1.1 |
Total Operating Revenues |  | $ | 25.7 |  |  | $ | 61.4 |  |  | $ | 1.1 |  |  | $ | — |  |  | $ | 88.2 |
Segment Profit (Loss) |  |  | (3.2 | ) |  |  | 4.5 |  |  |  | 0.3 |  |  |  | 1.2 |  |  |  | 2.8 |
Capital Expenditures |  |  | 30.9 |  |  |  | 7.2 |  |  |  | — |  |  |  | 1.0 |  |  |  | 39.1 |
Three Months Ended September 30, 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  | $ | 25.1 |  |  | $ | 57.5 |  |  | $ | 1.4 |  |  | $ | — |  |  | $ | 84.0 |
Segment Profit (Loss) |  |  | (2.1 | ) |  |  | 4.1 |  |  |  | 0.3 |  |  |  | — |  |  |  | 2.3 |
Capital Expenditures |  |  | 26.0 |  |  |  | 10.0 |  |  |  | — |  |  |  | 3.3 |  |  |  | 39.3 |
Nine Months Ended September 30, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Billed and Unbilled Revenue |  | $ | 151.1 |  |  | $ | 176.2 |  |  | $ | — |  |  | $ | — |  |  | $ | 327.3 |
Rate Adjustment Mechanism Revenue |  |  | (3.7 | ) |  |  | (8.6 | ) |  |  | — |  |  |  | — |  |  |  | (12.3 | )
Other Operating Revenue – Non-Regulated |  |  | — |  |  |  | — |  |  |  | 3.5 |  |  |  | — |  |  |  | 3.5 |
Total Operating Revenues |  | $ | 147.4 |  |  | $ | 167.6 |  |  | $ | 3.5 |  |  | $ | — |  |  | $ | 318.5 |
Segment Profit |  |  | 9.1 |  |  |  | 10.2 |  |  |  | 0.9 |  |  |  | 1.8 |  |  |  | 22.0 |
Capital Expenditures |  |  | 53.1 |  |  |  | 20.8 |  |  |  | — |  |  |  | 2.4 |  |  |  | 76.3 |
Segment Assets |  |  | 730.0 |  |  |  | 485.7 |  |  |  | 6.6 |  |  |  | 42.2 |  |  |  | 1,264.5 |
Nine Months Ended September 30, 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  | $ | 131.9 |  |  | $ | 154.4 |  |  | $ | 4.5 |  |  | $ | — |  |  | $ | 290.8 |
Segment Profit |  |  | 7.9 |  |  |  | 9.3 |  |  |  | 0.8 |  |  |  | (0.2 | ) |  |  | 17.8 |
Capital Expenditures |  |  | 48.7 |  |  |  | 23.8 |  |  |  | — |  |  |  | 11.7 |  |  |  | 84.2 |
Segment Assets |  |  | 661.2 |  |  |  | 461.2 |  |  |  | 7.3 |  |  |  | 50.2 |  |  |  | 1,179.9 |
As of December 31, 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Assets |  | $ | 714.3 |  |  | $ | 476.9 |  |  | $ | 6.7 |  |  | $ | 44.0 |  |  | $ | 1,241.9 |

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- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8813-108599 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8721-108599 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8906-108599 + Details
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