Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2024

Restricted Stock [Member]

Summary of information about nonvested stock option awards and changes

The following table summarizes activity under our restricted stock plans (shares in thousands):

	Year Ended
	December 31, 2024
		Weighted-
		Average Grant
Restricted Stock and Restricted Stock Units	Shares	Date Fair Value
Unvested at beginning of year	113	$	130.83
Granted	25	$	315.04
Vested	(57)	$	134.54
Forfeited	(2)	$	158.37
Unvested at end of year	79	$	187.33

Performance Stock Units

Schedule of fair values of the total shareholder return portion

December 31, 2024	2024 PSU Grant		2023 PSU Grant
Risk-free interest rate	4.2	%	4.1	%
Dividend yield	0.3	%	0.3	%
Volatility	40.2	%	44.9	%
Look-back period (in years)	2.0		1.0
December 31, 2023	2023 PSU Grant		2022 PSU Grant
Risk-free interest rate	4.2	%	4.7	%
Dividend yield	0.5	%	0.5	%
Volatility	35.0	%	35.1	%
Look-back period (in years)	2.0		1.0
December 31, 2022	2022 PSU Grant		2021 PSU Grant
Risk-free interest rate	4.4	%	4.7	%
Dividend yield	0.5	%	0.5	%
Volatility	33.5	%	35.1	%
Look-back period (in years)	2.0		1.0