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v3.23.3

Summary of Significant Accounting Policies - Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | $ 253,337 | $ 238,268 | $ 592,768 | $ 595,860
Regulatory balancing account revenue | 1,639 | 28,039 | (12,648) | 49,634
Operating revenue | 254,976 | 266,307 | 580,120 | 645,494
Total non-regulated revenue | 4,535 | 4,573 | 13,643 | 16,772
Residential |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 150,031 | 140,585 | 342,806 | 348,965
Business |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 47,707 | 44,031 | 117,527 | 115,472
Multiple residential |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 18,778 | 17,333 | 50,280 | 48,343
Industrial |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 8,165 | 8,086 | 19,672 | 20,174
Public authorities |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 14,522 | 13,441 | 29,938 | 31,310
Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 14,134 | 14,792 | 32,545 | 31,596
Operating and maintenance revenue |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 2,918 | 3,184 | 9,229 | 9,822
Other non-regulated revenue |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 972 | 720 | 2,553 | 4,951
Non-regulated revenue from contracts with customers |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers | 3,890 | 3,904 | 11,782 | 14,773
Lease revenue | 645 | 669 | 1,861 | 1,999
Total non-regulated revenue | $ 4,535 | $ 4,573 | $ 13,643 | 16,772
Insurance Program |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contracts with customers |  |  |  | $ 2,700

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