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Equity-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2022

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Stock Option Activity

Stock option activity during 2020, 2021 and 2022 was as follows (aggregate intrinsic value in thousands):

		Number of Options				Weighted Average Exercise Price				Weighted Average Remaining Contractual Term (in years)				Aggregate Intrinsic Value
Options outstanding at January 1, 2020			1,360,068			$	39.40
Options granted			507,600				33.13
Options exercised			(68,700	)			29.15
Options cancelled			(288,662	)			39.67
Options outstanding at December 31, 2020			1,510,306				37.56
Options granted			324,320				57.53
Options exercised			(558,322	)			39.45
Options cancelled			(170,235	)			40.08
Options outstanding at December 31, 2021			1,106,069				42.07
Options granted			334,260				55.73
Options exercised			(285,577	)			40.66
Options cancelled			(175,475	)			46.98
Options outstanding at December 31, 2022			979,277			$	46.27				7.44			$	35,303
Options exercisable at December 31, 2022			301,827			$	41.43				5.69			$	12,341

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 years ended December 31, 2022, 2021 and 2020:

		Year Ended December 31,
		2022				2021				2020
Weighted average grant-date fair value of options		$	20.72			$	20.64			$	12.37
Risk-free interest rate			2.0	%			0.9	%			1.6	%
Expected volatility			39	%			40	%			41	%
Expected life (in years)			5.0				5.0				5.0

Restricted Stock Activity

Restricted stock activity during 2020, 2021 and 2022 was as follows:

		Number of Shares				Weighted Average Grant-Date Fair Value
Unvested at January 1, 2020			805,136			$	34.14
Granted			637,312				25.82
Cancelled			(129,683	)			34.56
Vested			(289,769	)			35.88
Unvested at December 31, 2020			1,022,996			$	28.41
Granted			352,430				58.32
Cancelled			(82,751	)			39.63
Vested			(366,048	)			30.81
Unvested at December 31, 2021			926,627			$	37.84
Granted			650,396				64.65
Cancelled			(145,205	)			49.03
Vested			(386,616	)			32.64
Unvested at December 31, 2022			1,045,202			$	54.89

Restricted Stock Unit Activity

Restricted stock unit activity during 2020, 2021 and 2022 was as follows:

		Number of Units				Weighted Average Grant-Date Fair Value
Unvested at January 1, 2020			447,357			$	38.89
Granted			583,680				10.60
Performance adjustment			117,772				13.50
Cancelled			(63,056	)			43.35
Vested			(12,691	)			42.09
Unvested at December 31, 2020			1,073,062			$	20.15
Granted			149,416				61.52
Performance adjustment			465,993				25.49
Cancelled			—				—
Vested			(184,051	)			42.30
Unvested at December 31, 2021			1,504,420			$	23.20
Granted			105,311				73.96
Performance adjustment			182,543				33.05
Cancelled			—				—
Vested			(518,474	)			43.16
Unvested at December 31, 2022			1,273,800			$	20.69

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Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year.

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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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