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Quarterly Financial Information (Tables) | 12 Months Ended
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Dec. 31, 2015
Quarterly Financial Information |
|  | Three Months Ended |
|  | March 31, |  |  | June 30, |  |  | September 30, |  |  | December 31, |
|  | 2015 |  |  | 2014 |  |  | 2015 |  |  | 2014 |  |  | 2015 |  |  | 2014 |  |  | 2015 |  |  | 2014 |
Total Operating Revenues |  | $ | 172.2 |  |  | $ | 156.1 |  |  | $ | 77.5 |  |  | $ | 73.3 |  |  | $ | 74.7 |  |  | $ | 76.6 |  |  | $ | 102.4 |  |  | $ | 119.8 |
Operating Income |  | $ | 28.4 |  |  | $ | 25.4 |  |  | $ | 8.9 |  |  | $ | 7.1 |  |  | $ | 7.3 |  |  | $ | 7.4 |  |  | $ | 18.5 |  |  | $ | 20.1 |
Net Income (Loss) Applicable to Common |  | $ | 13.6 |  |  | $ | 12.6 |  |  | $ | 1.7 |  |  | $ | 1.1 |  |  | $ | 1.7 |  |  | $ | 1.6 |  |  | $ | 9.3 |  |  | $ | 9.4 |
|  | Per Share Data: |
Earnings Per Common Share |  | $ | 0.98 |  |  | $ | 0.91 |  |  | $ | 0.12 |  |  | $ | 0.08 |  |  | $ | 0.12 |  |  | $ | 0.11 |  |  | $ | 0.67 |  |  | $ | 0.69 |
Dividends Paid Per Common Share |  | $ | 0.350 |  |  | $ | 0.345 |  |  | $ | 0.350 |  |  | $ | 0.345 |  |  | $ | 0.350 |  |  | $ | 0.345 |  |  | $ | 0.350 |  |  | $ | 0.345 |

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- Definition Tabular disclosure of the quarterly financial data in the annual financial statements. The disclosure includes financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income (loss) before extraordinary items and cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a)-(j) -URI http://asc.fasb.org/extlink&oid=51825399&loc=d3e1280-108306 + Details
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