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Business Segments, Concentration of Credit Risk and Significant Customers - Schedule of Customers Who Accounted for at Least 10% of Total Net Revenue (Details) - Net Revenues - Customer Concentration	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Customer A
Significant Customers
Percentage of concentration risk	32.00%	46.00%
Customer B
Significant Customers
Percentage of concentration risk	18.00%	17.00%	21.00%
Customer C
Significant Customers
Percentage of concentration risk	18.00%
Customer D
Significant Customers
Percentage of concentration risk	15.00%	11.00%	47.00%
Customer E
Significant Customers
Percentage of concentration risk			13.00%

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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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