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EQUITY PLANS AND SHARE-BASED COMPENSATION (Tables)

9 Months Ended

Sep. 30, 2025

Share-Based Payment Arrangement [Abstract]

Schedule of Stock Option Activity

The following table summarizes stock option activity for time-based awards:

(shares in thousands)			Number of shares												Weighted average exercise price
Outstanding at December 31, 2024			10,509												$	11.09
Granted			8,290												1.22
Canceled			(2,501)												7.89
Expired			(376)												6.44
Outstanding at September 30, 2025			15,922												$	6.57

Schedule of Time-Based RSUs and PSUs Activity

The following table summarizes the time-based RSUs and PSUs activity:

			Restricted Stock Units (RSU)						Performance Stock Units (PSU)						Weighted average grant date fair value
(shares in thousands)															RSU						PSU
Outstanding at December 31, 2024			14,211						392						$	7.41					$	9.43
Granted			11,895						—						1.25						—
Vested			(4,331)						—						9.47						—
Forfeited			(3,652)						—						4.08						—
Outstanding at September 30, 2025			18,123						392						$	3.55					$	9.43

Schedule of Stock-Based Compensation Expense

The following table summarizes share-based compensation expense:

			Three Months Ended September 30,												Nine Months Ended September 30,
(In thousands)			2025						2024						2025						2024
Cost of revenue			$	892					$	1,229					$	2,982					$	4,466
Research and development			3,050						4,740						8,964						15,119
Sales, general and administrative			7,042						12,290						20,134						35,418
Total share-based compensation expense			$	10,984					$	18,259					$	32,080					$	55,003

Schedule of Fair Value of Employee Stock Options

The fair value of employee stock options was estimated using the following assumptions:

									Nine Months Ended September 30,
															2025						2024
Expected term in years															4.9						4.9
Expected volatility															95% — 96%						81% — 93%
Risk-free interest rate															3.89% — 4.29%						3.48% — 4.32%
Dividend yield															—						—
Weighted average grant date fair value per share															$0.90						$1.40

Schedule of Fair Value of Employee Stock Purchase Plan

The fair value of shares to be issued under the ESPP was estimated using the following assumptions:

									Nine Months Ended September 30,
															2025						2024
Expected term in years															0.5 — 2.0						0.5 — 2.0
Expected volatility															101% — 113%						81% — 118%
Risk-free interest rate															3.66% — 4.31%						3.88% — 5.27%
Dividend yield															—						—
Weighted average grant date fair value per share															$0.89						$1.53

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Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement.

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Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year.

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