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RETIREMENT PLAN BENEFIT LIABILITY - Additional Information (Details) - Supplemental Executive Retirement Plan [Member] $ in Millions	6 Months Ended
	Jun. 30, 2025 USD ($) Participant
Defined Benefit Plan Disclosure [Line Items]
Number of participants | Participant	7
Benefit Payments | $	$ 1.0

X

- Definition

The number of participants in the defined benefit plan.

+ References

No definition available.

+ Details

Name:	oled_DefinedBenefitPlansNumberOfParticipants
Namespace Prefix:	oled_
Data Type:	xbrli:integerItemType
Balance Type:	na
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_DefinedBenefitPlanDisclosureLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of expense for employee benefit and equity-based compensation.

+ References

No definition available.

+ Details

Name:	us-gaap_EmployeeBenefitsAndShareBasedCompensation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

Name:	us-gaap_RetirementPlanTypeAxis=us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: