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v3.19.3.a.u2

Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2019
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 |  | Charged to Costs and Expenses | Charged to Other Accounts |  | Net Accounts Written Off(a) |  | Balance at End of Period
Fiscal Year 2017: |  |  |  |  |  |  |  |  |
Accumulated provision for uncollectibles | $ | 3,443,296 |  | 1,015,970 | 20,400 |  | (1,304,721) | $ | 3,174,945
Fiscal Year 2018: |  |  |  |  |  |  |  |  |
Accumulated provision for uncollectibles | $ | 3,174,945 |  | 1,065,970 | 320,400 |  | (1,407,653) | $ | 3,153,662
Fiscal Year 2019: |  |  |  |  |  |  |  |  |
Accumulated provision for uncollectibles | $ | 3,153,662 |  | 1,614,943 | 20,160 |  | (1,530,496) | $ | 3,258,269
(a)Net of recovery of amounts previously written off.

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- Definition The entire disclosure for valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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- References No definition available. + Details
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