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Investments | 9 Months Ended
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Sep. 30, 2014
Investments [Abstract] |
Investments [Text Block] | INVESTMENTS Investments. At September 30, 2014, our investment portfolio included the real estate assets of ALLETE Properties, debt and equity securities consisting primarily of securities held in other postretirement plans to fund employee benefits, the cash equivalents within these plans, and other assets consisting primarily of land in Minnesota.
Other Investments | September 30, 2014 |  |  | December 31, 2013 |
Millions |  |  |
ALLETE Properties |  | $89.4 |  |  |  | $89.9 |
Available-for-sale Securities (a) | 19.0 |  |  | 17.7 |
Cash Equivalents (b) | 3.7 |  |  | 34.2 |
Other | 4.3 |  |  | 4.5 |
Total Other Investments |  | $116.4 |  |  |  | $146.3 |
(a) | As of September 30, 2014, the aggregate amount of available-for-sale corporate debt securities maturing in one year or less was $0.2 million, in one year to less than three years was $2.1 million, in three years to less than five years was $1.3 million, and in five or more years was $7.1 million.
(b) | During the first quarter of 2014, cash included in Other Investments was transferred to Cash and Cash Equivalents.
NOTE 3. INVESTMENTS (Continued)
ALLETE Properties | September 30, 2014 |  |  | December 31, 2013 |
Millions |  |  |
Land Inventory Beginning Balance |  | $85.4 |  |  |  | $86.5 |
Cost of Sales | (1.1 | ) |  | (1.5 | )
Other | 0.5 |  |  | 0.4 |
Land Inventory Ending Balance | 84.8 |  |  | 85.4 |
Long-Term Finance Receivables (net of allowances of $0.6 and $0.6) | 1.4 |  |  | 1.4 |
Other | 3.2 |  |  | 3.1 |
Total Real Estate Assets |  | $89.4 |  |  |  | $89.9 |
Land Inventory. Land inventory is accounted for as held for use and is recorded at cost, unless the carrying value is determined not to be recoverable in accordance with the accounting standards for property, plant and equipment, in which case the land inventory is written down to fair value. Land values are reviewed for indicators of impairment on a quarterly basis and no impairments were recorded for the quarter and nine months ended September 30, 2014 (none for the year ended December 31, 2013). Long-Term Finance Receivables. As of September 30, 2014, long-term finance receivables were $1.4 million net of an allowance ($1.4 million net of an allowance as of December 31, 2013). Long-term finance receivables are collateralized by property sold, accrue interest at market-based rates and are net of an allowance for doubtful accounts. As of September 30, 2014, we had an allowance for doubtful accounts of $0.6 million ($0.6 million as of December 31, 2013).
|  | Gross Unrealized |
Available-For-Sale Securities | Cost | Gain | Loss | Fair Value
Millions |  |  |  |
September 30, 2014 | $19.1 | $0.3 | $0.4 | $19.0
December 31, 2013 | $18.3 | — | $0.6 | $17.7
| Net | Gross Realized
Available-For-Sale Securities (Continued) | Proceeds | Gain | Loss
Millions |  |  |
Quarter Ended September 30, |  |  |
2014 | $0.6 | — | —
2013 | $6.9 | $1.4 | —
Nine Months Ended September 30, |  |  |
2014 | $3.3 | $0.2 | —
2013 | $15.0 | $2.2 | —

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- Definition The entire disclosure for investments, including all tables. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 6 -Section 10 -Paragraph (c) -Subparagraph (1) + Details
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