STOCK-BASED COMPENSATION (Tables)

12 Months Ended

Dec. 31, 2023

STOCK-BASED COMPENSATION

Schedule of weighted-average assumptions used to estimate the fair value of options granted

	2023		2022		2021
Dividend yield	0.0	%	0.0	%	0.0	%
Expected volatility	27.6	%	27.7	%	28.9	%
Risk-free interest rate	3.75	%	2.15	%	0.85	%
Expected term	6.3 Years		6.1 Years		5.8 Years

Schedule of activities with respect to its stock option plans

				Weighted-
		Weighted-		Average
		Average		Remaining
	Number of	Exercise		Contractual
	Shares (in	Price Per		Term (in	Aggregate
Options	thousands)	Share		years)	Intrinsic Value
Outstanding at January 1, 2023	29,710	$	26.38	5.0	$	724,651
Granted 01/01/23 - 03/31/23	3,962	$	50.82
Granted 04/01/23 - 06/30/23	31	$	59.36
Granted 07/01/23 - 09/30/23	25	$	57.71
Granted 10/01/23 - 12/31/23	25	$	52.54
Exercised	(8,310)	$	15.67
Cancelled or forfeited	(460)	$	40.96
Outstanding at December 31, 2023	24,983	$	33.64	5.8	$	598,866
Vested and expected to vest in the future at December 31, 2023	24,215	$	33.30	5.7	$	588,750
Exercisable at December 31, 2023	14,481	$	27.25	4.0	$	439,669

Summary of information about stock options outstanding and exercisable

					Options Outstanding				Options Exercisable
						Weighted
						Average	Weighted		Number	Weighted
					Number	Remaining	Average		Exercisable	Average
Range of Exercise					Outstanding	Contractual	Exercise		(In	Exercise
Prices ($)					(In Thousands)	Term (Years)	Price ($)		Thousands)	Price ($)
$	11.50	-	$	21.99	3,218	2.2	$	21.36	3,218	$	21.36
$	22.46	-	$	23.14	3,085	2.5	$	22.87	3,085	$	22.87
$	24.38	-	$	28.98	833	4.6	$	26.69	773	$	26.59
$	29.37	-	$	29.37	3,017	4.2	$	29.37	3,017	$	29.37
$	29.84	-	$	31.20	4,208	5.6	$	30.41	3,137	$	30.34
$	31.46	-	$	33.71	69	5.2	$	32.25	45	$	32.00
$	36.62	-	$	36.62	4,305	8.2	$	36.62	520	$	36.62
$	38.96	-	$	48.90	2,307	7.4	$	44.18	686	$	44.42
$	50.82	-	$	50.82	3,873	9.2	$	50.82	—	$	—
$	52.02	-	$	59.36	68	9.5	$	55.56	—	$	—
					24,983	5.8	$	33.64	14,481	$	27.25

Schedule of activities with respect to non-vested restricted stock units and performance share units

		Weighted
	Number of	Average
	Shares (in	Grant-Date
	thousands)	Fair Value
Non-vested at January 1, 2023	2,026	$	36.27
Granted 01/01/23 - 03/31/231	523	$	48.49
Granted 04/01/23 - 06/30/23	22	$	59.70
Granted 07/01/23 - 09/30/23	2	$	56.38
Granted 10/01/23 - 12/31/23	8	$	51.99
Vested	(595)	$	32.84
Forfeited/cancelled	(22)	$	32.49
Non-vested at December 31, 2023	1,964	$	40.95

Schedule of employee and non-employee share-based compensation expense

	2023		2022		2021
Operating expenses	$	68,836	$	64,109	$	70,483
Total employee and non-employee share-based compensation expense included in income, before income tax		68,836		64,109		70,483
Less: Amount of income tax benefit recognized in earnings		(64,401)		(13,175)		(14,228)
Amount charged against net income	$	4,435	$	50,934	$	56,255