Summary of Significant Accounting Policies - Schedule of Property and Equipment Useful Lives (Details)	12 Months Ended
	Dec. 31, 2019
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	3 years
Product tooling equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	2 years
Computer, equipment and software
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	3 years
Capitalized internal-use software
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	3 years