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Geographic, Customer and Supplier Information - Major Customers (Details) - Sales Revenue, Net [Member] - Customer Concentration Risk [Member] - customer
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Major customers        
Number of customers   10 10 10
Top Ten Customers [Member]        
Major customers        
Percentage of revenue contributed by customer 22.00% 21.00% 29.00%