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Inventories, Net and Significant Suppliers - Related Party Supplier (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Executive Vice President |  |  |
Related Party Transactions [Line Items] |  |  |
Ownership percentage in third party by executive | 40.00% |  |
Inventory Purchases | Supplier Concentration Risk | Affiliated Entity |  |  |
Related Party Transactions [Line Items] |  |  |
Inventory purchases form related party supplier | $ 1.1 | $ 5.2 | $ 6.4

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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 No definition available. + Details
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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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- Details
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- Details
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