v3.7.0.1
Summary of Significant Accounting Policies (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2017
Dec. 31, 2016
Inventory, net    
Raw materials $ 83,751 $ 84,431
Work-in-progress 13,288 1,204
Finished goods 12,422 17,960
Total inventory 109,461 103,595
Accounting Standards Update 2016-09    
Inventory, net    
Decrease in deferred tax liabilities 7,100  
Decrease in capital in excess 1,900  
Reclassification | Accounting Standards Update 2016-09    
Inventory, net    
Increase in retained earnings 7,100  
Accrued liabilities    
Inventory, net    
Deferred Revenue 259,700 255,600
Other long-term liabilities    
Inventory, net    
Deferred Revenue 262,800 321,000
Other current assets    
Inventory, net    
Deferred expenses 73,000 63,400
Other long term assets    
Inventory, net    
Deferred expenses $ 59,600 $ 69,500