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Concentration of Credit Risk - Schedule of Concentration of Sales and Accounts Receivable (Details) - Customer Concentration Risk	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Net Revenue
Concentration Risk [Line Items]
Concentration risk percentage	10.00%	10.00%	10.00%	10.00%
Net Revenue | Customer A
Concentration Risk [Line Items]
Concentration risk percentage	37.00%	20.00%	34.00%	21.00%
Net Revenue | Customer B
Concentration Risk [Line Items]
Concentration risk percentage	10.00%	9.00%	7.00%	11.00%
Net Revenue | Customer C
Concentration Risk [Line Items]
Concentration risk percentage	7.00%	14.00%	7.00%	14.00%
Trade Accounts Receivable
Concentration Risk [Line Items]
Concentration risk percentage	10.00%	10.00%	10.00%	10.00%
Trade Accounts Receivable | Customer A
Concentration Risk [Line Items]
Concentration risk percentage	21.00%	14.00%
Trade Accounts Receivable | Customer B
Concentration Risk [Line Items]
Concentration risk percentage	19.00%	13.00%
Trade Accounts Receivable | Customer C
Concentration Risk [Line Items]
Concentration risk percentage	2.00%	17.00%

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- Definition

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