STOCK-BASED AWARDS (Tables)

9 Months Ended

Sep. 30, 2022

STOCK-BASED AWARDS [Abstract]

Summary of Stock Option Activity

Stock option activity during the nine months ended September 30, 2022 is summarized as follows:

	Option ‎Shares (thousands)	Weighted ‎average ‎exercise ‎price		Weighted ‎average ‎remaining ‎contractual ‎life (years)	Aggregate ‎intrinsic ‎value ‎(thousands)
Outstanding at December 31, 2021	9,462	$	48.01
Granted	2,441		63.56
Exercised	(638)		41.28
Forfeited	(787)		59.93
Outstanding at September 30, 2022	10,478	$	51.16	6.9	$	112,947
Exercisable at September 30, 2022	5,459	$	43.40	5.7	$	91,874
Expected to vest at September 30, 2022	5,020	$	59.61	8.3	$	21,072

Fair Value of Options Using Black Scholes Option Pricing Model

The fair value of the options was estimated on the date of the grant using a Black-Scholes option pricing model with the following assumptions:

	Nine Months Ended
	September 30,
	2022			2021
Risk-free interest rate	1.46%	-	3.51%	0.40%	-	0.84%
Expected term (years)	4.7	-	9.9	4.8
Expected volatility	33.0%	-	35.0%	33.0%	-	34.0%
Expected dividend yield		—%			—%

Summary of Restricted Stock Unit Activity

	Restricted Stock ‎Units (thousands)	Weighted ‎average ‎grant date fair value ‎per share		Weighted ‎average ‎remaining ‎contractual ‎life (years)
Outstanding at December 31, 2021	29	$	72.54
Granted	25		61.13
Vested	—		—
Forfeited	—		—
Outstanding at September 30, 2022	54	$	67.20	8.0

Stock-based Compensation Schedule

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
(In thousands)	2022		2021		2022		2021
Stock-based compensation expense	$	8,314	$	7,451	$	24,303	$	22,781
Net stock-based compensation capitalized into inventory		120		170		504		511
Total stock-based compensation cost	$	8,434	$	7,621	$	24,807	$	23,292