STOCK-BASED COMPENSATION (Tables)

6 Months Ended

Jun. 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 June 30,								For the Six Months Ended June 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		207,583	$	43.40		72,110	$	39.79		1,499,120	$	46.49		1,431,747	$	48.87
Restricted stock units*		147,075	$	72.99		37,240	$	75.30		859,510	$	78.78		726,607	$	86.53

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 June 30,				For the Six Months Ended June 30,
		2022		2021		2022		2021
	(in thousands)
Research and development		$	14,467	$	12,860	$	27,535	$	23,986
Selling, general and administrative			88,425		16,109		104,555		33,491
Total stock-based compensation expense		$	102,892	$	28,969	$	132,090	$	57,477

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 June 30,				For the Six Months Ended June 30,
		2022		2021		2022		2021
	(in thousands)
Stock options		$	89,155	$	17,587	$	105,561	$	34,606
Restricted stock awards/units			12,378		10,573		23,743		20,504
Employee stock purchase plan			1,359		809		2,786		2,367
Total stock-based compensation expense		$	102,892	$	28,969	$	132,090	$	57,477