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Inventories, Net and Significant Suppliers - Related Party Supplier (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Executive Vice President
Related Party Transaction [Line Items]
Ownership percentage in third party by executive		40.00%
Related Party Supplier | Supplier Concentration Risk | Inventory Purchases
Related Party Transaction [Line Items]
Inventory purchases	$ 1.4	$ 1.1	$ 4.0

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- Definition

Related party transaction, ownership percentage by affiliated entity

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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.

+ References

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- Definition

Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

+ References

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