Business Combination (Components of Recognized Identified Assets Acquired and Liabilities Assumed) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Business Combination [Line Items]  
Current assets, net of current liabilities $ 2,586
Long-term deposit 8
Property and equipment 124
Acquired technology 10,133
Goodwill 65,965
Total assets acquired, net 78,816
Fair value of outstanding warrants granted by Legal Parent prior to the Merger, classified as a long-term derivative liability (3,162)
Total liabilities assumed, net (3,162)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net, Total 75,654
Measurement of consideration:  
Fair value of vested stock options granted to employees, management and consultants, classified as equity 7,364
Fair value of outstanding warrants granted by the Legal Parent prior to the Merger, classified as equity 10,079
Fair value of Vringo shares of common stock and vested $0.01 options granted to employees, management and consultants 58,211
Total estimated purchase price $ 75,654