Stock Based Compensation (Tables)

9 Months Ended

Sep. 30, 2022

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of Option Activity

				Weighted	Aggregate
		Weighted		Average	Intrinsic
		Average		Remaining	Value
	Options	Exercise Price		Contractual Life	(in 000’s)
Outstanding options at January 1, 2022	1,669,325	$	78.63
Options granted	320,100		115.27
Options exercised	(98,967)		59.98
Options canceled/forfeited	(9,485)		93.40
Outstanding options at September 30, 2022	1,880,973	$	85.78	4.86	$	37,402
Exercisable options at September 30, 2022	960,605	$	71.37	3.48	$	30,181

Summary of Weighted Average Grant-date Assumptions and Weighted Average Fair Values

	2022			2021
Weighted-average fair value of grants	$	20.99		$	17.01
Risk-free interest rates		2.86	%		0.70	%
Dividend yield		2.50	%		2.06	%
Expected volatility		22.89	%		22.73	%
Expected option life		5.06	years		4.97	years

Schedule of Restricted Stock Units Activity

		Weighted
		Average
		Grant Date
	RSUs	Fair Value
Nonvested at January 1, 2022	45,068	$	97.67
Granted	16,705		116.60
Reinvested	291		108.78
Vested	(21,380)		93.07
Forfeited	(1,291)		76.82
Nonvested at September 30, 2022	39,393	$	108.25