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Equity-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2024

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Stock Option Activity

Stock option activity during 2023 and 2024 was as follows:

		Number of Options				Weighted Average Exercise Price				Weighted Average Remaining Contractual Term (in years)				Aggregate Intrinsic Value (in thousands)
Options outstanding at January 1, 2023			979,277			$	46.27
Options granted			296,340				78.94
Options exercised			(198,527	)			41.29
Options cancelled			(140,545	)			55.95
Options outstanding at December 31, 2023			936,545				56.21
Options granted			3,000				78.59
Options exercised			(121,468	)			45.94
Options cancelled			(45,560	)			67.12
Options outstanding at June 30, 2024			772,517			$	57.27				6.85			$	10,819
Options exercisable at June 30, 2024			422,652			$	48.06				5.80			$	8,872

Schedule of Stock Options Valuation Assumptions

The following table summarizes the grant-date fair value of options and the assumptions used to develop the fair value estimates for options granted during the six months ended June 30, 2024 and year ended December 31, 2023:

		June 30, 2024				December 31, 2023
Weighted average grant-date fair value of options		$	28.34			$	30.99
Risk-free interest rate			4.4	%			4.2	%
Expected volatility			33	%			37	%
Expected life (in years)			4.7				5.0

Restricted Stock Activity

Restricted stock unit activity during 2023 and 2024 was as follows:

		Number of Shares				Weighted Average Grant-Date Fair Value
Unvested at January 1, 2023			1,045,202			$	54.89
Granted			587,239				76.32
Cancelled			(198,740	)			57.21
Vested			(403,223	)			50.48
Unvested at December 31, 2023			1,030,478			$	68.38
Granted			492,602				76.45
Cancelled			(61,121	)			70.45
Vested			(287,340	)			61.41
Unvested at June 30, 2024			1,174,619			$	73.36

Performance stock unit activity

Performance stock unit activity during 2023 and 2024 was as follows:

		Number of Units				Weighted Average Grant-Date Fair Value
Unvested at January 1, 2023			1,273,800			$	20.69
Granted			177,509				70.98
Performance adjustment			407,825				17.69
Cancelled			(114,908	)			69.07
Vested			(1,408,195	)			10.60
Unvested at December 31, 2023			336,031			$	69.35
Granted			75,909				67.85
Performance adjustment			(9,241	)			72.99
Cancelled			(15,723	)			70.37
Vested			(98,504	)			61.52
Unvested at June 30, 2024			288,472			$	71.45

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Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

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