STOCK-BASED COMPENSATION (Tables)

9 Months Ended

Sep. 30, 2022

Share-Based Payment Arrangement [Abstract]

Summary of Stock Awards Granted

The following table summarizes the Company’s stock awards granted for each of the periods indicated:

	For the Three Months Ended September 30,								For the Nine Months Ended September 30,
	2022				2021				2022				2021
	Grants		Weighted Average Grant Date Fair Value		Grants		Weighted Average Grant Date Fair Value		Grants		Weighted Average Grant Date Fair Value		Grants		Weighted Average Grant Date Fair Value
Stock options		127,100	$	59.84		91,200	$	42.62		1,626,220	$	47.54		1,522,947	$	48.50
Restricted stock units*		65,657	$	105.28		47,594	$	83.37		925,167	$	80.66		774,201	$	86.34

Summary of Stock-Based Compensation Expense by Function Included within Condensed Consolidated Statements of Operations and Comprehensive Loss

The following table summarizes stock-based compensation expense by function included within the unaudited condensed consolidated statements of operations and comprehensive loss:

		For the Three Months Ended September 30,				For the Nine Months Ended September 30,
		2022		2021		2022		2021
	(in thousands)
Research and development		$	14,795	$	12,031	$	42,330	$	36,017
Selling, general and administrative			35,623		14,653		140,178		48,144
Total stock-based compensation expense		$	50,418	$	26,684	$	182,508	$	84,161

Summary of Stock-Based Compensation Expense by Grant Type Included within Consolidated Statements of Operations and Comprehensive Loss

The following table summarizes stock-based compensation expense by grant type included within the unaudited condensed consolidated statements of operations and comprehensive loss:

		For the Three Months Ended September 30,				For the Nine Months Ended September 30,
		2022		2021		2022		2021
	(in thousands)
Stock options		$	35,686	$	13,912	$	141,247	$	48,518
Restricted stock awards/units			13,321		11,695		37,064		32,199
Employee stock purchase plan			1,411		1,077		4,197		3,444
Total stock-based compensation expense		$	50,418	$	26,684	$	182,508	$	84,161