Balance Sheet Components - Property And Equipment (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 1,302,303	$ 981,226
Less: Accumulated depreciation	(474,185)	(416,005)
Property and equipment, net	828,118	565,221
Land
Property, Plant and Equipment [Line Items]
Property and equipment, gross	13,560	6,125
Buildings
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 41,894	33,141
Estimated Useful Lives	30 years
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 387,172	354,999
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 95,240	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	$ 264,358	243,565
Estimated Useful Lives	3 years
Corporate aircraft
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 110,621	108,995
Estimated Useful Lives	8 years
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 44,111	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	$ 345,347	$ 100,521