Share-based Compensation (Tables)

12 Months Ended

Dec. 31, 2023

Share-Based Payment Arrangement [Abstract]

Schedule of Valuation Assumptions

Weighted-average grant-date fair values of stock options and the assumptions used in estimating the fair values are as follows:

	Year Ended December 31,
	2023			2022			2021
Weighted-average grant-date fair value per share	$	57.15		$	67.58		$	52.19
Expected term (years)	4.7			4.7			4.7
Risk-free interest rate	3.98		%	1.32		%	0.33		%
Expected volatility	54.66		%	51.24		%	53.10		%

Schedule of Stock Option Activity Rollforward

The following table summarizes our stock option activity from continuing operations:

	December 31, 2023
	Number of Shares	Weighted-average Exercise Price		Aggregate Intrinsic Value		Weighted- average Remaining Contractual Term
Outstanding at beginning of year	0.27	$	79.91
Granted	0.05	114.93
Exercised	(0.02)	52.02
Forfeited / Cancelled	(0.01)	109.23
Outstanding at end of year	0.29	$	87.09	$	14.5	6.0 years
Vested and expected to vest at end of year	0.28	$	86.29	$	12.1	5.9 years
Exercisable at end of year	0.18	$	70.22	$	14.4	4.8 years

Schedule of Unvested Restricted Stock and RSU Rollforward

The following table summarizes our unvested restricted stock and RSUs activity from continuing operations:

	December 31, 2023
	Number of Shares	Weighted-Average Grant-Date Fair Value
Unvested at beginning of year	0.11	$	125.14
Granted	0.07	132.28
Forfeited	(0.01)	150.56
Vested	(0.06)	106.20
Unvested at end of year	0.11	$	137.70

Schedule of Performance Units Unvested Shares Activity Rollforward

The following table, which is stated at a 100% earned percentage, summarizes our performance units activity from continuing operations:

	December 31, 2023
	Number of Shares	Weighted-Average Grant-Date Fair Value
Unvested at beginning of year	0.07	$	103.66
Granted	0.05	126.86
Vested	(0.03)	68.70
Forfeited	(0.02)	94.57
Unvested at end of year	0.07	$	134.41