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CASH, CASH EQUIVALENTS AND INVESTMENTS - Additional Information (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Cash And Cash Equivalents [Line Items]
Minority investment, carrying value	$ 18.1	$ 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