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Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2013
Valuation and Qualifying Accounts [Abstract] |
Valuation and Qualifying Accounts |
Schedule II
MGE Energy, Inc. and Madison Gas and Electric Company
Valuation and Qualifying Accounts
|  |  |  | Additions |  |  |  |
|  |  |  | (1) | (2) |  |  |  |
|  | Balance at |  | Charged to | Charged |  | Net |  | Balance at
|  | beginning |  | costs and | to other |  | Accounts |  | end of
|  | of period |  | expenses | accounts |  | written off |  | period
Fiscal Year 2011: |  |  |  |  |  |  |  |  |
Accumulated provision for uncollectibles | $ | 4,588,675 |  | 2,174,729 | 49,500 |  | (2,712,571) | $ | 4,100,333
Fiscal Year 2012: |  |  |  |  |  |  |  |  |
Accumulated provision for uncollectibles | $ | 4,100,333 |  | 2,825,300 | 44,400 |  | (2,153,915) | $ | 4,816,118
Fiscal Year 2013: |  |  |  |  |  |  |  |  |
Accumulated provision for uncollectibles | $ | 4,816,118 |  | 2,373,342 | 37,200 |  | (2,256,949) | $ | 4,969,711

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- Definition The entire disclosure for any allowance and reserve accounts (their beginning and ending balances, as well as a reconciliation by type of activity during the period). Alternatively, disclosure of the required information may be within the footnotes to the financial statements or a supplemental schedule to the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e24092-122690 + Details
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