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Concentration of Credit Risk - Schedule of Revenue by Geography (Details) - Customer Concentration Risk - Net Revenue	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Concentration Risk [Line Items]
Concentration risk percentage	10.00%	10.00%	10.00%
China
Concentration Risk [Line Items]
Concentration risk percentage	75.00%	67.00%	74.00%
Other Asia
Concentration Risk [Line Items]
Concentration risk percentage	5.00%	10.00%	11.00%
North America
Concentration Risk [Line Items]
Concentration risk percentage	16.00%	18.00%	10.00%
Europe
Concentration Risk [Line Items]
Concentration risk percentage	4.00%	5.00%	5.00%

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- Definition

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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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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