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BALANCE SHEET DETAILS - Goodwill and Intangible Assets (Details) (USD $)
In Millions, unless otherwise specified
6 Months Ended 0 Months Ended
Jun. 30, 2014
Jan. 17, 2014
Luna Innovations, Inc. [Member]
Jun. 25, 2014
Adachi Co., Ltd [Member]
Jun. 25, 2014
Adachi Co., Ltd [Member]
Reacquired Rights [Member]
Jun. 25, 2014
Adachi Co., Ltd [Member]
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]          
Increase in goodwill $ 60.6        
Increase in intangible assets 22.7        
Acquisition of intangible assets   9.5   5.5 17.2
Acquired intangible assets, weighted average amortization period   9 years   1 year 1 month 6 days 7 years
Goodwill, acquired during the period   10.1 50.5    
Liabilities assumed in connection with acquisition     2.7    
Purchase consideration, cash     68.7    
Purchase consideration, contingent liability     $ 1.8