XML 81 R14.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Investment in ATC | 6 Months Ended
--- | ---
Jun. 30, 2013
Investment in ATC [Abstract] |
Investment in ATC [Text Block] | INVESTMENT IN ATC Our wholly-owned subsidiary, Rainy River Energy, owns approximately 8 percent of ATC, a Wisconsin-based utility that owns and maintains electric transmission assets in parts of Wisconsin, Michigan, Minnesota and Illinois. ATC rates are FERC-approved and are based on a 12.2 percent return on common equity dedicated to utility plant. We account for our investment in ATC under the equity method of accounting. As of June 30, 2013, our equity investment in ATC was $111.2 million ($107.3 million at December 31, 2012). In the first six months of 2013, we invested $1.6 million in ATC, and on July 30, 2013, we invested an additional $0.8 million. We expect to make additional investments of approximately $0.7 million in 2013.
ALLETE’s Investment in ATC |
Millions |
Equity Investment Balance as of December 31, 2012 |  | $107.3 |
Cash Investments | 1.6 |
Equity in ATC Earnings | 10.2 |
Distributed ATC Earnings | (7.9 | )
Equity Investment Balance as of June 30, 2013 |  | $111.2 |
NOTE 7. INVESTMENT IN ATC (Continued) ATC’s summarized financial data for the quarters and six months ended June 30, 2013 and 2012, is as follows:
| Quarter Ended |  | Six Months Ended
ATC Summarized Financial Data | June 30, |  | June 30,
Income Statement Data | 2013 |  | 2012 |  | 2013 |  | 2012
Millions |  |  |  |  |  |  |
Revenue |  | $152.1 |  |  | $152.2 |  |  | $303.9 |  |  |  | $299.8 |
Operating Expense | 69.9 |  |  | 71.8 |  | 139.7 |  |  | 141.3 |
Other Expense | 20.9 |  |  | 21.1 |  | 42.4 |  |  | 41.1 |
Net Income |  | $61.3 |  |  | $59.3 |  |  | $121.8 |  |  |  | $117.4 |
ALLETE’s Equity in Net Income |  | $5.0 |  |  | $4.8 |  |  | $10.2 |  |  |  | $9.4 |

X
- Details
Name: | ale_InvestmentInAtcAbstract
Namespace Prefix: | ale_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for equity method investments and joint ventures. Equity method investments are investments that give the investor the ability to exercise significant influence over the operating and financial policies of an investee. Joint ventures are entities owned and operated by a small group of businesses as a separate and specific business or project for the mutual benefit of the members of the group. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 35 -Paragraph 35 -URI http://asc.fasb.org/extlink&oid=7658923&loc=d3e32847-111569 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 35 -Paragraph 32 -URI http://asc.fasb.org/extlink&oid=7658923&loc=d3e32787-111569 + Details
Name: | us-gaap_EquityMethodInvestmentsDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration