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STOCK-BASED COMPENSATION - Equity Instruments Other Than Options - Additional Information (Details) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Fair value of shares withheld for tax withholding obligations | $ 948,000 | $ 3,384,000 | $ 8,844,000 | $ 13,018,000
Director [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Restricted stock awards and units vesting terms |  |  | 1 year |
Fair value of shares issued | $ 313,000 | $ 297,000 | $ 622,000 | $ 591,000
Shares issued (in shares) |  |  | 2,196 | 2,706
Restricted Stock [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Grants in period (shares) |  |  | 100,741 |
Total fair value of performance unit awards granted |  |  | $ 15,100,000 |
Shares withheld for employee taxes (shares) | 1,616 | 14,660 | 51,400 | 60,827
Shares withheld for employee taxes | $ 210,000 | $ 3,400,000 | $ 8,000,000.0 | $ 12,100,000
Restricted Stock [Member] | Selling, General and Administrative Expense [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Compensation expense | 3,400,000 | 4,100,000 | 7,400,000 | 7,700,000
Restricted Stock [Member] | Research and Development Expense [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Compensation expense | 1,600,000 | 1,300,000 | 3,100,000 | 2,500,000
Restricted Stock [Member] | Cost of Sales [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Compensation expense | 567,000 | 711,000 | $ 1,100,000 | 1,300,000
Restricted Stock [Member] | Minimum [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Restricted stock awards and units vesting terms |  |  | 3 years |
Restricted Stock [Member] | Maximum [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Restricted stock awards and units vesting terms |  |  | 5 years |
Restricted Stock Units (RSUs) [Member] | Research and Development Expense [Member] | Non Employee Members of Scientific Advisory Board [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Compensation expense | 31,000 | 76,000 | $ 151,000 | $ 112,000
Performance Shares [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Grants in period (shares) |  |  | 25,156 |
Total fair value of performance unit awards granted |  |  | $ 15,200,000 |
Shares withheld for tax withholding obligations (in shares) |  |  | 5,082 | 3,881
Fair value of shares withheld for tax withholding obligations |  |  | $ 826,000 | $ 875,000
Performance Shares [Member] | Performance-Based Vesting Requirement [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Grants in period (shares) |  |  | 100,621 | 50,309
Performance Shares [Member] | Market-Based Vesting Requirement [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Grants in period (shares) |  |  | 25,156 |
Performance Shares [Member] | Selling, General and Administrative Expense [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Compensation expense | 1,700,000 | 2,200,000 | $ 1,800,000 | $ 2,000,000.0
Performance Shares [Member] | Research and Development Expense [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Compensation expense | 413,000 | 596,000 | 385,000 | 503,000
Performance Shares [Member] | Cost of Sales [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Compensation expense | $ 256,000 | $ 366,000 | $ 237,000 | $ 332,000

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