Certain Balance Sheet Components - Property and Equipment (Details) - USD ($) $ in Thousands		Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross		$ 153,712	$ 136,131
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment		(110,571)	(113,203)
Property, Plant and Equipment, Net		43,141	22,928
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross		72,731	75,229
Capitalized software [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross		37,141	34,190
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	[1]	38,718	15,170
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross		2,913	6,036
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross		$ 2,209	$ 5,506

[1] During fiscal 2020, the Company completed construction of $23.9 million leasehold improvements for the new headquarters facility