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Inventories, Net and Significant Suppliers - Narrative (Details) $ in Millions | 6 Months Ended
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Jun. 30, 2018 USD ($)
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 from related party | $ 1.1

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- Details
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