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EQUITY AND CASH COMPENSATION UNDER THE PPG AGREEMENT - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended
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Mar. 31, 2025 | Mar. 31, 2024
Long-term Purchase Commitment [Line Items] |  |
Percent of services payable in cash or shares | 50.00% |
Charges to expense for cash portion of reimbursement of expenses | $ 4.6 | $ 4.5
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 |

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- Definition Research and development expense (credit). + References No definition available. + Details
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Balance Type: | debit
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- Definition Price of the entity's common stock which would be required to be attained for the conversion feature embedded in the debt instrument to become effective. + References No definition available. + Details
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- Details
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Balance Type: |
Period Type: |