Benefit Plans - Narrative (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2025 USD ($)	Jun. 30, 2025 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Expected required and discretionary employer cash contributions	$ 6,113	$ 6,113
Employer plan contributions	$ 628	$ 2,105
CTWS Employees
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase		1.50%