Segment, Geographical and Other Revenue Information - Concentration Risk (Details) - Customer Concentration Risk	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Revenue, Product and Service Benchmark | Customer A
Concentration Risk [Line Items]
Concentration risk, percentage	15.00%		10.00%
Revenue, Product and Service Benchmark | Customer B
Concentration Risk [Line Items]
Concentration risk, percentage	12.00%
Revenue, Product and Service Benchmark | Customer C
Concentration Risk [Line Items]
Concentration risk, percentage	12.00%		13.00%
Revenue, Product and Service Benchmark | Customer D
Concentration Risk [Line Items]
Concentration risk, percentage		16.00%	17.00%	20.00%
Revenue, Product and Service Benchmark | Customer E
Concentration Risk [Line Items]
Concentration risk, percentage		38.00%	10.00%	27.00%
Revenue, Product and Service Benchmark | Customer F
Concentration Risk [Line Items]
Concentration risk, percentage		12.00%		11.00%
Revenue, Product and Service Benchmark | Customer G
Concentration Risk [Line Items]
Concentration risk, percentage				13.00%
Accounts Receivable | Customer A
Concentration Risk [Line Items]
Concentration risk, percentage			20.00%
Accounts Receivable | Customer B
Concentration Risk [Line Items]
Concentration risk, percentage			15.00%
Accounts Receivable | Customer D
Concentration Risk [Line Items]
Concentration risk, percentage			14.00%		32.00%
Accounts Receivable | Customer E
Concentration Risk [Line Items]
Concentration risk, percentage			10.00%
Accounts Receivable | Customer F
Concentration Risk [Line Items]
Concentration risk, percentage					13.00%
Accounts Receivable | Customer G
Concentration Risk [Line Items]
Concentration risk, percentage					25.00%
Accounts Receivable | Customer H
Concentration Risk [Line Items]
Concentration risk, percentage			15.00%