Description of Business and Summary of Significant Accounting Policies - Goodwill and Intangible Assets (Details)	12 Months Ended
	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Useful life	3 years 9 months 18 days
Minimum
Finite-Lived Intangible Assets [Line Items]
Useful life	3 years
Maximum
Finite-Lived Intangible Assets [Line Items]
Useful life	7 years