Balance Sheet Components - Property And Equipment (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2020
Dec. 31, 2019
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 1,087,011 $ 981,226
Less: Accumulated depreciation (436,556) (416,005)
Property and equipment, net 650,455 565,221
Land    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 6,125 6,125
Buildings    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 34,459 33,141
Estimated Useful Lives 30 years  
Leasehold improvements    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 361,648 354,999
Furniture and fixtures    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 87,925 87,465
Furniture and fixtures | Minimum    
Property, Plant and Equipment [Line Items]    
Estimated Useful Lives 3 years  
Furniture and fixtures | Maximum    
Property, Plant and Equipment [Line Items]    
Estimated Useful Lives 15 years  
Information technology    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 249,440 243,565
Estimated Useful Lives 3 years  
Corporate aircraft    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 109,619 108,995
Estimated Useful Lives 8 years  
Machinery and equipment    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 43,776 46,415
Machinery and equipment | Minimum    
Property, Plant and Equipment [Line Items]    
Estimated Useful Lives 3 years  
Machinery and equipment | Maximum    
Property, Plant and Equipment [Line Items]    
Estimated Useful Lives 5 years  
Capital work-in-progress    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 194,019 $ 100,521