GOODWILL - Narrative (Details)			12 Months Ended
	Oct. 01, 2023 USD ($)	Oct. 03, 2022 USD ($)	Dec. 31, 2023 USD ($) acquistion	Dec. 31, 2022 USD ($)
Goodwill [Line Items]
Impairment loss	$ 0
The Torrington Water Company (TWC)
Goodwill [Line Items]
Goodwill acquired				$ 44,800,000
New England Service Company (NESC)
Goodwill [Line Items]
NESC Measurement Period Adjustments				500,000
Water Acquisitions
Goodwill [Line Items]
Goodwill acquired			$ 9,500,000
Water Distribution | The Torrington Water Company (TWC)
Goodwill [Line Items]
Goodwill acquired		$ 44,800,000		44,800,000
Water Distribution | New England Service Company (NESC)
Goodwill [Line Items]
Goodwill acquired			22,200,000
NESC Measurement Period Adjustments			500,000	$ 500,000
Water Distribution | Water Acquisitions
Goodwill [Line Items]
Goodwill acquired			$ 9,500,000
Number of water acquisitions | acquistion			2