Pension and Other Postretirement Benefits - Narrative (Details) $ in Millions	3 Months Ended
	Mar. 31, 2024 USD ($)
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Employer contributions	$ 0.9
Expected future employer contributions, remainder of fiscal year	5.7
Other Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Expected future employer contributions, remainder of fiscal year	$ 0.2