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Business Segment Information | 6 Months Ended
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Jun. 30, 2023
Segment Reporting Information, Additional Information [Abstract] |
Business Segment Information | (12) Business Segment Information Our Chief Executive Officer, who is considered to be our CODM, reviews financial information presented on an operating segment basis for purposes of making decisions, allocating resources and assessing financial performance. Our CODM assesses the performance of our operating segments based on operating income. We conduct our business operations through two operating segments: Electric Utilities and Gas Utilities. Certain unallocated corporate expenses that support our operating segments are presented as Corporate and Other. Our operating segments are equivalent to our reportable segments. Segment information was as follows (in thousands):
| Three Months Ended June 30, |  | Six Months Ended June 30, |
| 2023 |  | 2022 |  | 2023 |  | 2022 |
Revenues: |  |  |  |  |  |  |  |
Electric Utilities |  |  |  |  |  |  |  |
External Customers | $ | 190,212 |  | $ | 201,450 |  | $ | 406,105 |  | $ | 405,059 |
Inter-segment |  | 2,861 |  |  | 2,929 |  |  | 5,677 |  |  | 5,858 |
Total Electric Utilities Revenue |  | 193,073 |  |  | 204,379 |  |  | 411,782 |  |  | 410,917 |
Gas Utilities |  |  |  |  |  |  |  |
External Customers |  | 221,071 |  |  | 272,745 |  |  | 926,337 |  |  | 892,706 |
Inter-segment |  | 1,649 |  |  | 1,424 |  |  | 3,299 |  |  | 2,855 |
Total Gas Utilities Revenue |  | 222,720 |  |  | 274,169 |  |  | 929,636 |  |  | 895,561 |
Inter-segment eliminations |  | (4,510 | ) |  | (4,353 | ) |  | (8,976 | ) |  | (8,713 | )
Total Revenues | $ | 411,283 |  | $ | 474,195 |  | $ | 1,332,442 |  | $ | 1,297,765 |
Operating income (loss): |  |  |  |  |  |  |  |
Electric Utilities | $ | 46,619 |  | $ | 45,226 |  | $ | 107,679 |  | $ | 95,972 |
Gas Utilities |  | 17,725 |  |  | 28,195 |  |  | 132,350 |  |  | 151,735 |
Corporate and Other |  | (828 | ) |  | (1,032 | ) |  | (1,630 | ) |  | (1,965 | )
Total Operating Income | $ | 63,516 |  | $ | 72,389 |  | $ | 238,399 |  | $ | 245,742 |
Total assets (net of inter-segment eliminations) as of: | June 30, 2023 |  | December 31, 2022 |
Electric Utilities | $ | 3,914,037 |  | $ | 3,929,721 |
Gas Utilities |  | 5,252,521 |  |  | 5,578,282 |
Corporate and Other |  | 242,537 |  |  | 110,227 |
Total assets | $ | 9,409,095 |  | $ | 9,618,230 |

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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/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 31 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8924-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 34 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8981-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8721-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9031-108599 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (f) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8933-108599 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (e) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8933-108599 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 26 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8844-108599 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9038-108599 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8933-108599 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8736-108599 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9054-108599 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 15 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8657-108599 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8721-108599 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -URI https://asc.fasb.org/topic&trid=2134510 + Details
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