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Benefit Plans - Narrative (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2025 USD ($)	Sep. 30, 2025 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Expected required and discretionary employer cash contributions	$ 6,113	$ 6,113
Employer plan contributions	$ 1,395	$ 3,500
CTWS Employees
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase		1.50%

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Defined Benefit Plan, Rate Of Compensation Increase

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