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Financial Statements Details - Property and Equipment, Net (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Jan. 01, 2019
Dec. 31, 2018
Property, Plant and Equipment [Line Items]        
Property and equipment, gross $ 124,743     $ 165,367
Less: accumulated depreciation (83,214)     (90,012)
Property and equipment, net 41,529   $ 42,549 75,355
Depreciation 4,700 $ 5,300    
Equipment and machinery        
Property, Plant and Equipment [Line Items]        
Property and equipment, gross 57,939     55,912
Computer hardware and software        
Property, Plant and Equipment [Line Items]        
Property and equipment, gross 31,371     30,566
Furniture and fixtures        
Property, Plant and Equipment [Line Items]        
Property and equipment, gross 3,711     3,697
Leasehold improvements        
Property, Plant and Equipment [Line Items]        
Property and equipment, gross 31,089     36,447
Building        
Property, Plant and Equipment [Line Items]        
Property and equipment, gross 0     35,154
Construction-in-process        
Property, Plant and Equipment [Line Items]        
Property and equipment, gross $ 633     $ 3,591