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Common Stock and Earnings Per Share | 12 Months Ended
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Dec. 31, 2014
Common Stock and Earnings Per Share [Abstract] |
Common Stock and Earnings Per Share [Text Block] | COMMON STOCK AND EARNINGS PER SHARE
Summary of Common Stock | Shares |  | Equity |
| Thousands |  | Millions |
Balance as of December 31, 2011 | 37,513 |  |  | $705.6 |
Employee Stock Purchase Program | 20 |  | 0.8 |
Invest Direct | 474 |  | 19.2 |
Options and Stock Awards | 95 |  | 6.0 |
Equity Issuance Program | 1,275 |  | 53.1 |
Balance as of December 31, 2012 | 39,377 |  | 784.7 |
Employee Stock Purchase Program | 16 |  | 0.7 |
Invest Direct | 395 |  | 18.5 |
Options and Stock Awards | 301 |  | 17.9 |
Equity Issuance Program | 1,312 |  | 63.4 |
Balance as of December 31, 2013 | 41,401 |  | 885.2 |
Employee Stock Purchase Program | 18 |  | 0.8 |
Invest Direct | 378 |  | 18.9 |
Options and Stock Awards | 78 |  | 8.0 |
Equity Issuance Program | 1,851 |  | 90.0 |
Forward Sale Agreement and Issuance | 1,807 |  | 85.2 |
Contributions to Pension | 396 |  | 19.5 |
Balance as of December 31, 2014 | 45,929 |  |  | $1,107.6 |
Equity Issuance Program. We entered into a distribution agreement with Lampert Capital Markets, Inc., in February 2008, as amended most recently in May 2014, with respect to the issuance and sale of up to an aggregate of 9.6 million shares of our common stock, without par value, of which 1.3 million shares remain available for issuance. For the year ended December 31, 2014, 1.9 million shares of common stock were issued under this agreement resulting in net proceeds of $90.0 million (1.3 million shares for net proceeds of $63.4 million for the year ended December 31, 2013). The shares sold in 2012 through August 1, 2013, were offered and sold pursuant to Registration Statement No. 333-170289. On August 2, 2013, we filed Registration Statement No. 333-190335, pursuant to which the remaining shares will continue to be offered for sale, from time to time. Earnings Per Share. The difference between basic and diluted earnings per share, if any, arises from outstanding stock options, non-vested restricted stock units, performance share awards granted under our Executive Long-Term Incentive Compensation Plan and common shares under the forward sale agreement (described below). In 2014 and 2013, in accordance with accounting standards for earnings per share, no options to purchase shares of common stock were excluded from the computation of diluted earnings per share because the option exercise prices were greater than the average market prices. In 2012, there were 0.2 million shares excluded because the option exercise prices were greater than the average market prices; therefore, their effect would have been anti-dilutive. Forward Sale Agreement and Issuance of Common Stock. On February 26, 2014, ALLETE entered into a confirmation of forward sale agreement (Agreement) with a forward counterparty in connection with a public offering of 2.8 million shares of ALLETE common stock. The use of an equity forward transaction substantially eliminates future equity market price risk by fixing a common equity offering sales price under the then existing market conditions, while mitigating immediate share dilution resulting from the offering by postponing the actual issuance of common stock until funds are needed in accordance with our capital investment strategy. Pursuant to the Agreement, the forward counterparty (or its affiliate) borrowed 2.8 million shares of ALLETE common stock (borrowed shares) from third parties and sold them to the underwriters. ALLETE had the right to elect physical, cash or net share settlement under the forward sales agreement, for all or a portion of its obligations under the Agreement. In the event that ALLETE elected physical settlement of the Agreement, it would deliver shares of its common stock in exchange for cash proceeds at the then-applicable forward sale price. The forward sale price was initially $48.01 per share, subject to adjustment as provided in the Agreement. On September 5, 2014, ALLETE physically settled a portion of its obligations under the Agreement by having delivered approximately 1.4 million shares of common stock in exchange for cash proceeds of $65.0 million. On February 4, 2015, ALLETE physically settled the remaining portion of its obligation under the Agreement by delivering approximately 1.4 million shares for cash proceeds of $65.4 million. NOTE 13. COMMON STOCK AND EARNINGS PER SHARE (Continued) In connection with the public offering of the 2.8 million shares, ALLETE granted the underwriters an option to purchase up to an additional 0.4 million shares of ALLETE common stock (the option shares). The underwriters exercised the option in full and on March 4, 2014, the Company issued and sold the option shares to the underwriters at a price to ALLETE equal to the initial forward sale price for proceeds of $20.2 million. The equity forward transaction was reflected in ALLETE’s diluted earnings per share using the treasury stock method, which resulted in no material dilutive impact to ALLETE’s diluted earnings per share for the year ended December 31, 2014. Prior to any settlement date, any dilutive effect of the Agreement on our earnings per share would only occur during periods when the average market price per share of our common stock is above the per share adjusted forward sales price described above. The equity forward transaction is accounted for as an equity instrument in accordance with the accounting guidance for distinguishing liabilities from equity and the guidance for derivatives. Under the accounting guidance, the transaction qualifies for an exception from derivative accounting because the forward sale transaction is indexed to ALLETE’s stock. Contributions to Pension. In 2014, we contributed approximately 0.4 million shares of ALLETE common stock to our pension plan, which had an aggregate value of $19.5 million when contributed. There were no contributions of ALLETE common stock to our pension plan in 2013 or 2012. These shares of ALLETE common stock were contributed in reliance upon an exemption available pursuant to Section 4(a)(2) of the Securities Act of 1933, as amended.
Reconciliation of Basic and Diluted |  |  |
Earnings Per Share |  |  | Dilutive |  |  |
Year Ended December 31 | Basic |  | Securities |  | Diluted |
Millions Except Per Share Amounts |  |  |
2014 |  |  |
Net Income Attributable to ALLETE |  | $124.8 |  |  |  |  | $124.8 |
Average Common Shares | 42.9 |  | 0.2 |  | 43.1 |
Earnings Per Share |  | $2.91 |  |  |  |  | $2.90 |
2013 |  |  |
Net Income Attributable to ALLETE |  | $104.7 |  |  |  |  | $104.7 |
Average Common Shares | 39.7 |  | 0.1 |  | 39.8 |
Earnings Per Share |  | $2.64 |  |  |  |  | $2.63 |
2012 |  |  |
Net Income Attributable to ALLETE |  | $97.1 |  |  |  |  | $97.1 |
Average Common Shares | 37.6 |  | — |  | 37.6 |
Earnings Per Share |  | $2.59 |  |  |  |  | $2.58 |

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