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Segment Information | 3 Months Ended
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Mar. 31, 2015
Segment Reporting [Abstract] |
Segment Information | Segment Information - MGE Energy and MGE. MGE Energy operates in the following business segments: electric utility, gas utility, nonregulated energy, transmission investment, and all other. See MGE Energy's and MGE's 2014 Annual Report on Form 10-K for additional discussion of each of these segments. The following table s show segment information for MGE Energy's operations for the indicated periods:
(In thousands)MGE Energy |  | Electric |  | Gas |  | Non- Regulated Energy |  | Transmission Investment |  | All Others |  | Consolidation/ Elimination Entries |  | Consolidated Total
Three Months Ended March 31, 2015 |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues | $ | 98,240 | $ | 69,928 | $ | 1,966 | $ | - | $ | - | $ | - | $ | 170,134
Interdepartmental revenues |  | 115 |  | 2,725 |  | 9,847 |  | - |  | - |  | (12,687) |  | -
Total operating revenues |  | 98,355 |  | 72,653 |  | 11,813 |  | - |  | - |  | (12,687) |  | 170,134
Depreciation and amortization |  | (7,332) |  | (1,642) |  | (1,863) |  | - |  | (12) |  | - |  | (10,849)
Other operating expenses |  | (79,800) |  | (60,068) |  | (50) |  | - |  | (203) |  | 12,687 |  | (127,434)
Operating income (loss) |  | 11,223 |  | 10,943 |  | 9,900 |  | - |  | (215) |  | - |  | 31,851
Other (deductions) income, net |  | 90 |  | (1) |  | - |  | 1,881 |  | 135 |  | - |  | 2,105
Interest (expense) income, net |  | (2,819) |  | (804) |  | (1,518) |  | - |  | 50 |  | - |  | (5,091)
Income (loss) before taxes |  | 8,494 |  | 10,138 |  | 8,382 |  | 1,881 |  | (30) |  | - |  | 28,865
Income tax provision |  | (2,383) |  | (4,081) |  | (3,364) |  | (756) |  | (3) |  | - |  | (10,587)
Net income (loss) | $ | 6,111 | $ | 6,057 | $ | 5,018 | $ | 1,125 | $ | (33) | $ | - | $ | 18,278
Three Months Ended March 31, 2014 |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues | $ | 98,852 | $ | 110,713 | $ | 680 | $ | - | $ | - | $ | - | $ | 210,245
Interdepartmental revenues |  | 118 |  | 3,624 |  | 10,670 |  | - |  | - |  | (14,412) |  | -
Total operating revenues |  | 98,970 |  | 114,337 |  | 11,350 |  | - |  | - |  | (14,412) |  | 210,245
Depreciation and amortization |  | (6,337) |  | (1,563) |  | (1,834) |  | - |  | (12) |  | - |  | (9,746)
Other operating expenses |  | (77,901) |  | (92,843) |  | (40) |  | - |  | (156) |  | 14,412 |  | (156,528)
Operating income (loss) |  | 14,732 |  | 19,931 |  | 9,476 |  | - |  | (168) |  | - |  | 43,971
Other (deductions) income, net |  | 1,827 |  | (35) |  | - |  | 2,481 |  | 279 |  | - |  | 4,552
Interest (expense) income, net |  | (2,205) |  | (804) |  | (1,572) |  | - |  | 40 |  | - |  | (4,541)
Income before taxes |  | 14,354 |  | 19,092 |  | 7,904 |  | 2,481 |  | 151 |  | - |  | 43,982
Income tax provision |  | (4,353) |  | (7,665) |  | (3,172) |  | (998) |  | (77) |  | - |  | (16,265)
Net income | $ | 10,001 | $ | 11,427 | $ | 4,732 | $ | 1,483 | $ | 74 | $ | - | $ | 27,717
The following table s show segment information for MGE's operations for the indicated periods:
(In thousands)MGE |  | Electric |  | Gas |  | Non- Regulated Energy |  | Transmission Investment |  | Consolidation/ Elimination Entries |  | Consolidated Total
Three Months Ended March 31, 2015 |  |  |  |  |  |  |  |  |  |
Operating revenues | $ | 98,245 | $ | 69,933 | $ | 1,966 | $ | - | $ | - | $ | 170,144
Interdepartmental revenues |  | 110 |  | 2,720 |  | 9,847 |  | - |  | (12,677) |  | -
Total operating revenues |  | 98,355 |  | 72,653 |  | 11,813 |  | - |  | (12,677) |  | 170,144
Depreciation and amortization |  | (7,332) |  | (1,642) |  | (1,863) |  | - |  | - |  | (10,837)
Other operating expenses* |  | (82,142) |  | (64,138) |  | (3,414) |  | - |  | 12,677 |  | (137,017)
Operating income* |  | 8,881 |  | 6,873 |  | 6,536 |  | - |  | - |  | 22,290
Other (deductions) income, net* |  | 49 |  | (12) |  | - |  | 1,125 |  | - |  | 1,162
Interest expense, net |  | (2,819) |  | (804) |  | (1,518) |  | - |  | - |  | (5,141)
Net income |  | 6,111 |  | 6,057 |  | 5,018 |  | 1,125 |  | - |  | 18,311
Less: Net income attributable to |  |  |  |  |  |  |  |  |  |  |  |
noncontrolling interest, net of tax |  | - |  | - |  | - |  | - |  | (6,553) |  | (6,553)
Net income attributable to MGE | $ | 6,111 | $ | 6,057 | $ | 5,018 | $ | 1,125 | $ | (6,553) | $ | 11,758
Three Months Ended March 31, 2014 |  |  |  |  |  |  |  |  |  |
Operating revenues | $ | 98,858 | $ | 110,718 | $ | 680 | $ | - | $ | - | $ | 210,256
Interdepartmental revenues |  | 112 |  | 3,619 |  | 10,670 |  | - |  | (14,401) |  | -
Total operating revenues |  | 98,970 |  | 114,337 |  | 11,350 |  | - |  | (14,401) |  | 210,256
Depreciation and amortization |  | (6,337) |  | (1,563) |  | (1,834) |  | - |  | - |  | (9,734)
Other operating expenses* |  | (82,046) |  | (100,450) |  | (3,212) |  | - |  | 14,401 |  | (171,307)
Operating income* |  | 10,587 |  | 12,324 |  | 6,304 |  | - |  | - |  | 29,215
Other (deductions) income, net* |  | 1,619 |  | (93) |  | - |  | 1,483 |  | - |  | 3,009
Interest expense, net |  | (2,205) |  | (804) |  | (1,572) |  | - |  | - |  | (4,581)
Net income |  | 10,001 |  | 11,427 |  | 4,732 |  | 1,483 |  | - |  | 27,643
Less: Net income attributable to |  |  |  |  |  |  |  |  |  |  |  |
noncontrolling interest, net of tax |  | - |  | - |  | - |  | - |  | (6,510) |  | (6,510)
Net income attributable to MGE | $ | 10,001 | $ | 11,427 | $ | 4,732 | $ | 1,483 | $ | (6,510) | $ | 21,133
*Amounts are shown net of the related tax expense, consistent with the presentation on the consolidated MGE Income Statement.

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 29 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8864-108599 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8933-108599 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8844-108599 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8538-108599 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8380-108599 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8981-108599 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 35 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8984-108599 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9038-108599 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8906-108599 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9054-108599 Reference 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 31 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8924-108599 Reference 12: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9031-108599 Reference 13: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8971-108599 Reference 14: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8595-108599 + Details
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