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COMMITMENTS AND CONTINGENCIES (Details) (USD $) In Millions, unless otherwise specified | Mar. 31, 2015 | Dec. 31, 2014
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Loss Contingencies [Line Items] |  |
Purchase commitments for inventory | $ 20.9 us-gaap_PurchaseCommitmentRemainingMinimumAmountCommitted | $ 9.1 us-gaap_PurchaseCommitmentRemainingMinimumAmountCommitted
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
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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
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Namespace Prefix: | oled_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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

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- Definition Minimum amount to be expended to satisfy the terms of arrangements in which the entity has agreed to expend funds to procure goods or services, excluding long-term purchase commitments or unconditional purchase obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.17) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.25) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.(a)(19)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 19 -Article 7 + Details
Name: | us-gaap_PurchaseCommitmentRemainingMinimumAmountCommitted
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |