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STOCK-BASED COMPENSATION - Equity Instruments Other Than Options - Additional Information (Details) - USD ($) | 3 Months Ended
--- | ---
Mar. 31, 2022 | Mar. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Fair value of shares withheld for tax withholding obligations | $ 7,896,000 | $ 9,634,000
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 | $ 309,000 | $ 294,000
Shares issued (in shares) | 2,196 | 1,353
Restricted Stock [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Grants in period (shares) | 100,134 |
Total fair value of performance unit awards granted | $ 15,100,000 |
Shares withheld for employee taxes (shares) | 49,794 | 48,824
Shares withheld for employee taxes | $ 7,800,000 | $ 9,400,000
Restricted Stock [Member] | Selling, General and Administrative Expense [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Compensation expense | 4,000,000.0 | 3,600,000
Restricted Stock [Member] | Research and Development Expense [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Compensation expense | 1,500,000 | 1,200,000
Restricted Stock [Member] | Cost of Sales [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Compensation expense | $ 518,000 | 557,000
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 | $ 120,000 | $ 36,000
Performance Shares [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Grants in period (shares) | 2,516 |
Total fair value of performance unit awards granted | $ 15,200,000 |
Shares withheld for tax withholding obligations (in shares) | 563 | 1,224
Fair value of shares withheld for tax withholding obligations | $ 88,000 | $ 231,000
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 | $ 68,000 | $ 211,000
Performance Shares [Member] | Research and Development Expense [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Compensation expense | 28,000 | 56,000
Performance Shares [Member] | Cost of Sales [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Compensation expense | $ 19,000 | $ 35,000

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