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Stock and Stock-Based Compensation Plans (Tables)

3 Months Ended

Mar. 31, 2024

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,
			2024						2023
PRSUs			$	3.8					$	(0.1)
RSUs			2.9						2.8
Service options			0.1						0.2
Market options			(0.2)						0.7
Total stock-based compensation expense			$	6.6					$	3.6

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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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