Goodwill and Intangible Assets - Narrative (Details) $ in Thousands		1 Months Ended		12 Months Ended
	Jul. 08, 2025 waterSystem	Jul. 31, 2025 USD ($)	Mar. 31, 2025 USD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill reclassified to regulatory assets			$ (3,000)	$ (2,959)
Goodwill, acquired during period		$ 200		230
Business Combination [Line Items]
Amortization of intangible assets				$ 0	$ 0
Tucson Water | GW-Ocotillo
Business Combination [Line Items]
Number of water systems acquired | waterSystem	7