EQUITY AND CASH COMPENSATION UNDER THE PPG AGREEMENTS - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions |
3 Months Ended | |
|---|---|---|
Mar. 31, 2024 |
Mar. 31, 2023 |
|
| Long-term Purchase Commitment [Line Items] | ||
| Percent of services payable in cash or shares | 50.00% | |
| Issuance of common stock in connection with materials and license agreements (in shares) | 0 | |
| Charges to expense for cash portion of reimbursement of expenses | $ 4.5 | $ 2.0 |
| New OLED Materials Agreement and OLED Materials Agreement [Member] | Weighted Average | ||
| Long-term Purchase Commitment [Line Items] | ||
| Minimum average closing price of common stock (in dollars per share) | $ 20 | |