Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2024

Share-Based Payment Arrangement [Abstract]

Schedule Of Stock-based Compensation Expense By Award Type

The tables below summarize the Company’s stock-based compensation expense by award type and expense category line item during the periods indicated (in millions).

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
Award type	2024		2023		2024		2023
Stock appreciation rights	$	3.0	$	2.5	$	10.6	$	8.1
Restricted stock units	31.2		24.3		113.2		95.4
Common stock equivalents	0.2		0.3		0.8		0.9
Total (1)	$	34.4	$	27.1	$	124.6	$	104.4

Schedule Of Stock-Based Compensation Expense By Expense Category

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
Expense category line item	2024		2023		2024		2023
Cost of services and product development	$	13.8	$	11.5	$	48.6	$	42.5
Selling, general and administrative	20.6		15.6		76.0		61.9
Total (1)	$	34.4	$	27.1	$	124.6	$	104.4

(1)Includes costs of $12.9 million and $8.5 million during the three months ended September 30, 2024 and 2023, respectively, and $61.9 million and $48.4 million during the nine months ended September 30, 2024 and 2023, respectively, for awards to retirement-eligible employees. Those awards are expensed on an accelerated basis.