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 |

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