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Inventories, Net and Significant Suppliers - Related Party Supplier (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2017 | Jun. 30, 2018 | Jun. 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 | $ 1.6 | $ 1.1 | $ 2.6

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- Definition Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party. + References No definition available. + Details
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