Note 12. Accumulated Other Comprehensive Income Accumulated Other Comprehensive Income (Tables)

12 Months Ended

Dec. 31, 2024

Accumulated Other Comprehensive Income (Loss) [Line Items]

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

Changes in AOCI for the years ended December 31, 2024 and 2023 are as follows:

	Unrealized gains (losses) on derivative financial instruments		Net actuarial gains (losses) of defined benefit plans		Accumulated other comprehensive income (loss)
	(in millions)
Balances at December 31, 2022	$	20.9	$	(1.2)	$	19.7
Other comprehensive income (loss), net of tax, before reclassifications	10.6		(0.3)		10.3
Amounts reclassified from AOCI, net of tax benefit of $7.4, $—, and $7.4	(26.1)		0.1		(26.0)
Less: noncontrolling interest	7.0		—		7.0
Other comprehensive loss	(8.5)		(0.2)		(8.7)
Balances at December 31, 2023	12.4		(1.4)		11.0
Other comprehensive income (loss), net of tax, before reclassifications	(3.5)		0.1		(3.4)
Amounts reclassified from AOCI, net of tax expense of $3.7, $—, and $3.7	(11.5)		0.1		(11.4)
Less: noncontrolling interest	(0.4)		—		(0.4)
Other comprehensive income (loss)	(15.4)		0.2		(15.2)
Balances at December 31, 2024	$	(3.0)	$	(1.2)	$	(4.2)