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Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2015
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 |  |  |  |
|  | Balance at Beginning of Period |  | (1)Charged to Costs and Expenses | (2)Charged to Other Accounts |  | Net Accounts Written Off |  | Balance at End of Period
Fiscal Year 2013: |  |  |  |  |  |  |  |  |
Accumulated provision for uncollectibles | $ | 4,816,118 |  | 2,373,342 | 37,200 |  | (2,256,949) | $ | 4,969,711
Fiscal Year 2014: |  |  |  |  |  |  |  |  |
Accumulated provision for uncollectibles | $ | 4,969,711 |  | 1,898,300 | 15,092 |  | (2,134,446) | $ | 4,748,657
Fiscal Year 2015: |  |  |  |  |  |  |  |  |
Accumulated provision for uncollectibles | $ | 4,748,657 |  | 595,500 | 25,500 |  | (1,675,577) | $ | 3,694,080

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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 FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 + Details
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