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Investments (Tables)
 6 Months Ended
Jun. 30, 2011
Investments [Abstract]  
Long-Term Investment Portfolio

 
June 30,
December 31,
Investments
2011
2010
Millions
   
ALLETE Properties
$92.7
$94.0
Available-for-sale Securities
30.5
25.2
Other
5.8
6.8
Total Investments
$129.0
$126.0


 
June 30,
December 31,
ALLETE Properties
2011
2010
Millions
   
Land Held-for-sale Beginning Balance (January 1, 2011 and 2010, respectively)
$86.0
$74.9
Deeds to Collateralized Property
1.6
9.9
Capitalized Improvements and Other
-
1.2
Cost of Real Estate Sold
(0.3)
-
Land Held-for-sale Ending Balance
87.3
86.0
Long-Term Finance Receivables (net of allowances of $0.9 and $0.8)
2.1
3.7
Other
3.3
4.3
Total Real Estate Assets
$92.7
$94.0
Long-Term Finance Receivables Roll-Forward

Long-Term Finance Receivables
 Real
Allowance Roll-Forward
 Estate
Millions
 
Beginning Balance as of December 31, 2010
$0.8
Additional Reserve
0.1
Ending Balance as of June 30, 2011
$0.9