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Revenue from contracts with customers (Tables) | 3 Months Ended
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Mar. 31, 2024
Revenue from Contract with Customer [Abstract] |
Disaggregation of revenue | In the following tables, revenue is disaggregated by the type of customer or service provided. The Company believes this level of disaggregation best depicts how the nature, amount, timing and uncertainty of revenue and cash flows are affected by economic factors. The table also includes a reconciliation of the disaggregated revenue by reportable segments. For more information on the Company's business segments, see Note 15.
Three Months Ended March 31, 2024 | Electric | Natural gas distribution | Pipeline | Construction services | Other | Total
| (In thousands)
Residential utility sales | $ | 39,222 |  | $ | 263,103 |  | $ | — |  | $ | — |  | $ | — |  | $ | 302,325 |
Commercial utility sales | 41,515 |  | 162,130 |  | — |  | — |  | — |  | 203,645 |
Industrial utility sales | 11,349 |  | 14,579 |  | — |  | — |  | — |  | 25,928 |
Other utility sales | 1,936 |  | — |  | — |  | — |  | — |  | 1,936 |
Natural gas transportation | — |  | 14,591 |  | 43,637 |  | — |  | — |  | 58,228 |
Natural gas storage | — |  | — |  | 5,382 |  | — |  | — |  | 5,382 |
Electrical & mechanical specialty contracting | — |  | — |  | — |  | 439,378 |  | — |  | 439,378 |
Transmission & distribution specialty contracting | — |  | — |  | — |  | 176,860 |  | — |  | 176,860 |
Other | 15,630 |  | 3,201 |  | 2,256 |  | 46 |  | 1,433 |  | 22,566 |
Intersegment eliminations | (28) |  | (56) |  | (30,311) |  | (87) |  | (1,417) |  | (31,899) |
Revenues from contracts with customers | 109,624 |  | 457,548 |  | 20,964 |  | 616,197 |  | 16 |  | 1,204,349 |
Other revenues | (1,897) |  | 1,921 |  | 47 |  | 9,405 |  | — |  | 9,476 |
Total external operating revenues | $ | 107,727 |  | $ | 459,469 |  | $ | 21,011 |  | $ | 625,602 |  | $ | 16 |  | $ | 1,213,825 |
Three Months Ended March 31, 2023 | Electric | Natural gas distribution | Pipeline | Construction services | Other | Total
| (In thousands)
Residential utility sales | $ | 37,825 |  | $ | 327,651 |  | $ | — |  | $ | — |  | $ | — |  | $ | 365,476 |
Commercial utility sales | 36,347 |  | 204,927 |  | — |  | — |  | — |  | 241,274 |
Industrial utility sales | 10,763 |  | 16,838 |  | — |  | — |  | — |  | 27,601 |
Other utility sales | 1,774 |  | — |  | — |  | — |  | — |  | 1,774 |
Natural gas transportation | — |  | 13,504 |  | 34,983 |  | — |  | — |  | 48,487 |
Natural gas storage | — |  | — |  | 3,861 |  | — |  | — |  | 3,861 |
Electrical & mechanical specialty contracting | — |  | — |  | — |  | 590,263 |  | — |  | 590,263 |
Transmission & distribution specialty contracting | — |  | — |  | — |  | 152,022 |  | — |  | 152,022 |
Other | 11,878 |  | 4,721 |  | 1,859 |  | 33 |  | 1,572 |  | 20,063 |
Intersegment eliminations | (27) |  | (70) |  | (26,270) |  | — |  | (1,572) |  | (27,939) |
Revenues from contracts with customers | 98,560 |  | 567,571 |  | 14,433 |  | 742,318 |  | — |  | 1,422,882 |
Other revenues | (2,863) |  | (1,974) |  | 38 |  | 12,015 |  | — |  | 7,216 |
Total external operating revenues | $ | 95,697 |  | $ | 565,597 |  | $ | 14,471 |  | $ | 754,333 |  | $ | — |  | $ | 1,430,098 |
Contract balances | The changes in contract assets and liabilities were as follows:
| March 31, 2024 | December 31, 2023 | Change | Location on Consolidated Balance Sheets
| (In thousands) |
Contract assets | $ | 165,924 |  | $ | 158,861 |  | $ | 7,063 |  | Receivables, net
Contract liabilities - current | (187,741) |  | (202,144) |  | 14,403 |  | Accounts payable
Contract liabilities - noncurrent | (2,161) |  | (291) |  | (1,870) |  | Noncurrent liabilities - other
Net contract liabilities | $ | (23,978) |  | $ | (43,574) |  | $ | 19,596 |  |

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- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479806/606-10-50-10 + Details
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