Income Taxes - Rollforward of Unrecognized Tax Benefits (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Unrecognized Tax Benefits [Roll Forward]
Unrecognized tax benefits – January 1	$ 6.4	$ 5.7	$ 6.7
Additions for:
Current year tax positions	1.9	1.8	1.4
Prior year tax positions	2.7	0.1	0.5
Reductions for:
Prior year tax positions		0.0	(0.6)
Expiration of statute of limitations	(1.5)	(1.2)	(2.3)
Settlements	0.0	0.0	0.0
Unrecognized tax benefits – December 31	$ 9.5	$ 6.4	$ 5.7