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CASH, CASH EQUIVALENTS AND INVESTMENTS - Additional Information (Details) $ in Millions | Mar. 31, 2024 USD ($)
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Cash And Cash Equivalents [Line Items] |
Minority investment, carrying value | $ 14.0

X
- Definition Minority investment carrying value. + References No definition available. + Details
Name: | oled_MinorityInvestmentCarryingValue
Namespace Prefix: | oled_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_CashAndCashEquivalentsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration