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STOCK PLANS (Tables)

9 Months Ended

Sep. 30, 2024

Stockholders' Equity Note [Abstract]

Schedule of Recognized Stock-Based Compensation Expense

The Company recognized stock-based compensation expense in the periods presented as follows (in thousands):

						Three Months Ended September 30,												Nine Months Ended September 30,
						2024						2023						2024						2023
Cost of goods sold						$	1,509					$	1,272					$	3,896					$	4,432
Research and development						1,794						2,220						5,522						5,817
Selling, general and administrative						9,137						9,038						25,970						25,226
Contingent consideration (gains) charges, restructuring charges and other						790						—						3,517						—
Total						$	13,230					$	12,530					$	38,905					$	35,475
Stock-based compensation from:
Stock options						$	4,767					$	5,957					$	17,292					$	18,163
Restricted stock units						8,276						6,373						21,003						16,592
Employee stock purchase plan						187						200						610						720
Total						$	13,230					$	12,530					$	38,905					$	35,475

Schedule of the Company's Stock Option Activity and Restricted Stock Unit Activity

The following tables contain information about the Company’s stock option and restricted stock unit, or RSU, activity for the nine months ended September 30, 2024:

Stock Options						Number of Stock Options						Weighted Average Exercise Price (Per Share)
Outstanding at December 31, 2023						7,079,748						$	49.40
Granted						1,164,323						30.87
Forfeited						(240,232)						45.52
Expired						(1,108,285)						61.72
Outstanding at September 30, 2024						6,895,554						44.42

Restricted Stock Units						Number of Restricted Stock Units						Weighted Average Grant Date Fair Value (Per Share)
Unvested at December 31, 2023						1,364,618						$	47.66
Granted						1,936,065						28.82
Vested						(461,715)						49.33
Forfeited						(239,810)						39.41
Unvested at September 30, 2024						2,599,158						33.90

Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions

The fair values of stock options granted were estimated using the Black-Scholes option valuation model with the following weighted average assumptions:

Black-Scholes Weighted Average Assumption						Nine Months Ended September 30, 2024
Expected dividend yield						None
Risk-free interest rate						3.98%
Expected volatility						40.8%
Expected term of options						5.23 years

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