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Stock and Stock-Based Compensation Plans (Tables)

3 Months Ended

Mar. 31, 2025

Share-Based Payment Arrangement [Abstract]

Summary of stock-based compensation expense by type of award

The following table summarizes our stock-based compensation expense by type of award (in millions):

			Three Months Ended March 31,
			2025						2024
PRSUs			$	0.5					$	3.8
RSUs			3.7						2.9
Service options			(0.1)						0.1
Market options			(2.4)						(0.2)
Total stock-based compensation expense			$	1.7					$	6.6

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- Definition

Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation award.

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