Commitments and Contingencies (Details) $ in Millions	3 Months Ended
	Mar. 31, 2020 USD ($) claim
Loss Contingencies [Line Items]
Number of claims settled | claim	4
Connecticut Voluntary Corrective Action Program
Loss Contingencies [Line Items]
Environmental remediation expense incurred	$ 1.7
Estimated total cleanup costs, accrual	$ 1.0