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v3.7.0.1

Consolidated Statement of Income - USD ($) shares in Millions, $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2017 | Mar. 31, 2016
Income Statement [Abstract] |  |
Operating Revenue | $ 365.6 | $ 333.8
Operating Expenses [Abstract] |  |
Fuel and Purchased Power | 93.0 | 76.9
Transmission Services | 16.6 | 16.8
Cost of Sales | 35.2 | 33.3
Operating and Maintenance | 83.3 | 78.1
Depreciation and Amortization | 50.5 | 48.1
Taxes Other than Income Taxes | 14.4 | 13.8
Total Operating Expenses | 293.0 | 267.0
Operating Income | 72.6 | 66.8
Other Income (Expense) [Abstract] |  |
Interest Expense | (17.2) | (16.9)
Equity Earnings in ATC | 6.1 | 4.8
Other | 0.6 | 1.0
Total Other Expense | (10.5) | (11.1)
Income Before Non-Controlling Interest and Income Taxes | 62.1 | 55.7
Income Tax Expense | 13.1 | 9.3
Net Income | 49.0 | 46.4
Less: Non-Controlling Interest in Subsidiaries | 0.0 | 0.5
Net Income Attributable to ALLETE | $ 49.0 | $ 45.9
Average Shares of Common Stock and Per Share Data [Abstract] |  |
Basic (Shares) | 50.2 | 49.2
Diluted (Shares) | 50.4 | 49.2
Basic Earnings Per Share of Common Stock | $ 0.97 | $ 0.93
Diluted Earnings Per Share of Common Stock | 0.97 | 0.93
Dividends Per Share of Common Stock | $ 0.535 | $ 0.52

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