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REGULATORY PROCEEDINGS (Details) - USD ($) $ in Millions |  |  |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | ---
Nov. 22, 2024 | Jun. 12, 2024 | May 30, 2024 | Nov. 20, 2020 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Nov. 28, 2023 | Apr. 28, 2023
Water and Wastewater Rates [Abstract] |  |  |  |  |  |  |  |  |
Annual revenue performance obligation |  | $ 11.2 |  |  |  |  |  | $ 10.8 | $ 16.7
Percentage of revenue increase requested for new rates |  | 15.20% |  |  |  |  |  | 14.60% | 22.70%
Percentage of distribution system infrastructure charge |  |  |  |  |  |  |  | 7.50% |
Percentage of return on common equity |  | 9.50% |  |  |  |  |  |  |
Overall rate of return on rate base |  | 6.75% |  |  |  |  |  |  |
Other Proceedings [Abstract] |  |  |  |  |  |  |  |  |
Cumulative DSIC Rate | 1.66% |  | 0.34% | 7.50% |  |  |  |  |
Net Eligible Plant Improvements - Cumulative Dollars | $ 11.7 |  | $ 2.0 | $ 43.1 |  |  |  |  |
Maximum [Member] |  |  |  |  |  |  |  |  |
Water and Wastewater Rates [Abstract] |  |  |  |  |  |  |  |  |
Percentage of gross water sales in temporary rate increase placed into effect until new rates approved |  |  |  |  |  |  |  | 0.00% |
Delaware [Member] |  |  |  |  |  |  |  |  |
Water and Wastewater Rates [Abstract] |  |  |  |  |  |  |  |  |
Temporary annual rate increase subject to 15% gross water sales limitation |  |  |  |  | $ 2.5 |  |  |  |
Percentage of DSIC rate upon implementation of temporary increase in base rates charged to customers |  |  |  |  | 0.00% |  |  |  |
Percentage of gross water sales |  |  |  |  | 15.00% |  |  |  |
Period to complete rate case by law |  |  |  |  | 7 months |  |  |  |
Percentage of rate relief allowed should a rate case not complete |  |  |  |  | 15.00% |  |  |  |
Percentage of DSIC rate upon implementation of temporary increase in base rates charged to customers |  |  |  |  | 0.00% |  |  |  |
Other Proceedings [Abstract] |  |  |  |  |  |  |  |  |
Distribution System Improvement Charge rate increase applied between base rate filings |  |  |  |  | 7.50% |  |  |  |
Distribution System Improvement Charge rate increase within a 12-month period |  |  |  |  | 5.00% |  |  |  |
Artesian Water [Member] |  |  |  |  |  |  |  |  |
Other Proceedings [Abstract] |  |  |  |  |  |  |  |  |
Revenue earned in DSIC rate increases |  |  |  |  | $ 0.1 | $ 4.7 | $ 5.1 |  |

X
- Definition For a first temporary increase in revenue basis, maximum temporary annual rate charge increase subject to specific gross water sales limitation. + References No definition available. + Details
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- Definition Ceiling percentage of Distribution System Improvement Charge rate subject to amount billed to customers. + References No definition available. + Details
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- Definition For a first temporary annual rate increase in revenue basis, maximum percentage of gross water sales increase allowed subject to specific dollar amount limitation. + References No definition available. + Details
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