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COMMITMENTS AND CONTINGENCIES (Details) (Commitment With Executive Officers [Member]) | Dec. 31, 2014 multiple executive_officer
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Commitment With Executive Officers [Member] |
Loss Contingencies [Line Items] |
Number of executive officers under agreement | 6 oled_NumberOfExecutiveOfficersUnderAgreement / us-gaap_LossContingenciesByNatureOfContingencyAxis = oled_CommitmentWithExecutiveOfficersMember
Multiple of sum of average annual base salary and bonus agreement terms | 2 oled_MultipleOfSumOfAverageAnnualBaseSalaryAndBonusAgreementTerms / us-gaap_LossContingenciesByNatureOfContingencyAxis = oled_CommitmentWithExecutiveOfficersMember

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- Definition The multiple of the sum of the average annual base salary and bonus of the officer, which comprises the lump-sum cash payment to which each executive is entitled, under the agreement. + References No definition available. + Details
Name: | oled_MultipleOfSumOfAverageAnnualBaseSalaryAndBonusAgreementTerms
Namespace Prefix: | oled_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of executive officers under agreement. + References No definition available. + Details
Name: | oled_NumberOfExecutiveOfficersUnderAgreement
Namespace Prefix: | oled_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_LossContingenciesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration