v3.3.1.900
Summary of Significant Accounting Policies (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Foreign Currency      
Foreign currency transaction gain (loss) $ (7,700) $ (3,000) $ (1,100)
Fair value measurements      
Amount of transfers between levels within the fair value hierarchy 0 0  
Research and Development      
Research and Development Expense 78,287 60,886 67,942
Capitalized Software Costs      
Net carrying amount of externally marketed software 62,800 48,900  
Capitalized costs related to development of externally marketed software 22,400 23,100 17,000
Amortization expense relating to externally marketed software 8,400 5,400 1,700
Advertising Costs      
Advertising Expenses 49,900 50,800 47,400
Cost of sales      
Research and Development      
Research and Development Expense $ 59,200 68,400 $ 65,300
Minimum      
Property and Equipment      
Useful life 1 year    
Finite-Lived Intangible Assets      
Useful life 1 year    
Maximum      
Property and Equipment      
Useful life 40 years    
Finite-Lived Intangible Assets      
Useful life 30 years    
Capitalized Software Costs      
Software useful life 5 years    
Weighted-average | Externally marketed software      
Finite-Lived Intangible Assets      
Useful life 4 years    
Level 2      
Fair value measurements      
Orbital incentive obligations $ 79,300 $ 85,800