Revenue - Concentrations (Details)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
One distributor | Revenue | Customer concentration risk
Concentration Risk [Line Items]
Concentration risk (in percent)	39.00%	43.00%	43.00%
One distributor | Accounts receivable | Customer concentration risk
Concentration Risk [Line Items]
Concentration risk (in percent)	32.00%	41.00%
Channel network | Revenue | Sales method risk
Concentration Risk [Line Items]
Concentration risk (in percent)	92.00%	91.00%	90.00%