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Segment Information (Details 2) - Customer concentration risk - Revenue	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Customer A
Concentration risk
Revenue from major customer as a percentage of total revenue	21.00%	12.00%
Customer B
Concentration risk
Revenue from major customer as a percentage of total revenue	13.00%
Customer C
Concentration risk
Revenue from major customer as a percentage of total revenue	11.00%	15.00%	10.00%
Customer D
Concentration risk
Revenue from major customer as a percentage of total revenue			14.00%

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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