Stock Based Compensation (Tables)

9 Months Ended

Sep. 30, 2023

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, 2023	1,695,660	$	82.42
Options granted	172,250		135.51
Options exercised	(219,905)		57.15
Options canceled/forfeited	(8,585)		96.99
Outstanding options at September 30, 2023	1,639,420	$	91.31	4.83	$	73,168
Exercisable options at September 30, 2023	849,997	$	76.60	3.64	$	50,400

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

	2023			2022
Weighted-average fair value of grants	$	26.71		$	20.99
Risk-free interest rates		3.41	%		2.86	%
Dividend yield		2.29	%		2.50	%
Expected volatility		22.96	%		22.89	%
Expected option life		4.94	years		5.06	years

Schedule of Restricted Stock Units Activity

		Weighted
		Average
		Grant Date
	RSUs	Fair Value
Nonvested at January 1, 2023	44,208	$	109.51
Granted	20,413		136.19
Reinvested	288		132.60
Vested	(19,957)		103.61
Forfeited	(1,795)		116.10
Nonvested at September 30, 2023	43,157	$	124.74