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CONCENTRATION OF RISK, Revenues and Accounts Receivable (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 12 Months Ended
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2010
Concentration Risk [Line Items]                        
Revenue $ 56,173us-gaap_Revenues [1] $ 32,892us-gaap_Revenues $ 64,127us-gaap_Revenues [1] $ 37,839us-gaap_Revenues $ 49,478us-gaap_Revenues [1],[2] $ 32,826us-gaap_Revenues $ 49,359us-gaap_Revenues [1] $ 14,976us-gaap_Revenues $ 191,031us-gaap_Revenues $ 146,639us-gaap_Revenues $ 83,244us-gaap_Revenues  
Accounts receivable 22,075us-gaap_AccountsReceivableNetCurrent       15,657us-gaap_AccountsReceivableNetCurrent       22,075us-gaap_AccountsReceivableNetCurrent 15,657us-gaap_AccountsReceivableNetCurrent    
Total Revenue [Member] | Government Contracts Concentration Risk [Member]                        
Concentration Risk [Line Items]                        
Revenue                 100us-gaap_Revenues
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= oled_SalesRevenueTotalMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_GovernmentContractsConcentrationRiskMember		 1,100us-gaap_Revenues
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= oled_SalesRevenueTotalMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_GovernmentContractsConcentrationRiskMember		 3,400us-gaap_Revenues
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= oled_SalesRevenueTotalMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_GovernmentContractsConcentrationRiskMember		  
Concentration risk, percentage (in hundredths)                 1.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= oled_SalesRevenueTotalMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_GovernmentContractsConcentrationRiskMember		 1.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= oled_SalesRevenueTotalMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_GovernmentContractsConcentrationRiskMember		 4.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= oled_SalesRevenueTotalMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_GovernmentContractsConcentrationRiskMember		  
Total Revenue [Member] | Customer Concentration Risk [Member] | Major Customer A [Member]                        
Concentration Risk [Line Items]                        
Concentration risk, percentage (in hundredths)                 54.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= oled_SalesRevenueTotalMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= oled_MajorCustomerMember		 60.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= oled_SalesRevenueTotalMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= oled_MajorCustomerMember		 68.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= oled_SalesRevenueTotalMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= oled_MajorCustomerMember		  
Total Revenue [Member] | Customer Concentration Risk [Member] | Major Customer B [Member]                        
Concentration Risk [Line Items]                        
Concentration risk, percentage (in hundredths)                 19.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= oled_SalesRevenueTotalMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= oled_MajorCustomerBMember		 9.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= oled_SalesRevenueTotalMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= oled_MajorCustomerBMember		 6.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= oled_SalesRevenueTotalMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= oled_MajorCustomerBMember		  
Total Revenue [Member] | Customer Concentration Risk [Member] | Major Customer C [Member]                        
Concentration Risk [Line Items]                        
Concentration risk, percentage (in hundredths)                 18.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= oled_SalesRevenueTotalMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= oled_MajorCustomerCMember		 22.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= oled_SalesRevenueTotalMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= oled_MajorCustomerCMember		 5.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= oled_SalesRevenueTotalMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= oled_MajorCustomerCMember		  
Total Revenue [Member] | Geographic Concentration Risk [Member]                        
Concentration Risk [Line Items]                        
Concentration risk, percentage (in hundredths)                   99.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= oled_SalesRevenueTotalMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_GeographicConcentrationRiskMember		 99.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= oled_SalesRevenueTotalMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_GeographicConcentrationRiskMember		 95.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= oled_SalesRevenueTotalMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_GeographicConcentrationRiskMember
Concentration risk, additional characteristic                   outside of North America    
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Major Customer A [Member]                        
Concentration Risk [Line Items]                        
Accounts receivable 8,550us-gaap_AccountsReceivableNetCurrent
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= oled_MajorCustomerMember		       7,337us-gaap_AccountsReceivableNetCurrent
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= oled_MajorCustomerMember		       8,550us-gaap_AccountsReceivableNetCurrent
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= oled_MajorCustomerMember		 7,337us-gaap_AccountsReceivableNetCurrent
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= oled_MajorCustomerMember		 6,257us-gaap_AccountsReceivableNetCurrent
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= oled_MajorCustomerMember		  
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Major Customer B [Member]                        
Concentration Risk [Line Items]                        
Accounts receivable 7,598us-gaap_AccountsReceivableNetCurrent
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= oled_MajorCustomerBMember		       4,743us-gaap_AccountsReceivableNetCurrent
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= oled_MajorCustomerBMember		       7,598us-gaap_AccountsReceivableNetCurrent
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= oled_MajorCustomerBMember		 4,743us-gaap_AccountsReceivableNetCurrent
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= oled_MajorCustomerBMember		 0us-gaap_AccountsReceivableNetCurrent
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= oled_MajorCustomerBMember		  
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Major Customer C [Member]                        
Concentration Risk [Line Items]                        
Accounts receivable $ 953us-gaap_AccountsReceivableNetCurrent
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= oled_MajorCustomerCMember		       $ 2,905us-gaap_AccountsReceivableNetCurrent
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= oled_MajorCustomerCMember		       $ 953us-gaap_AccountsReceivableNetCurrent
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= oled_MajorCustomerCMember		 $ 2,905us-gaap_AccountsReceivableNetCurrent
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= oled_MajorCustomerCMember		 $ 867us-gaap_AccountsReceivableNetCurrent
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= oled_MajorCustomerCMember		  
[1] (1) The Company receives significant license revenue in the second and fourth quarters; see Note 2 for further details.
[2] Includes $1.5 million of revenue that was recognized relating to cash payments received in a prior year that were creditable against license fees and/or royalties for which the Company determined there was no appreciable likelihood of executing a commercial license agreement with the customer (see Note 2).