Accumulated Other Comprehensive Loss (Tables)

3 Months Ended

Mar. 31, 2026

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]


			Pension Plan Adjustments			Other Post Retirement Employee Benefit Plan Adjustments			Total
Balance at December 31, 2024			$	(47.8)		$	13.4		$	(34.5)
Amounts reclassified from accumulated other comprehensive loss			0.1			(0.1)			—
Balance at March 31, 2025			$	(47.7)		$	13.2		$	(34.5)

Balance at December 31, 2025			$	(44.2)		$	13.7		$	(30.5)
Amounts reclassified from accumulated other comprehensive loss			0.7			(0.1)			0.6
Balance at March 31, 2026			$	(43.5)		$	13.6		$	(29.9)