Commitments and Contingencies - Litigation and Related Contingencies and purchase commitments (Details)		1 Months Ended	12 Months Ended
	Sep. 25, 2019 product	Jun. 16, 2019 USD ($)	Dec. 31, 2018	Dec. 31, 2019 USD ($)
Governmental Investigations
Number of product category | product	1
Aggregate amount of unconditional purchase commitments				$ 250,200,000
Maximum
Governmental Investigations
Percentage of sales to customers on revenue			3.00%
Governmental Investigations | Legal | Korea
Governmental Investigations
Fine amount to be imposed		$ 20,000