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Inventories, Net and Significant Suppliers - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
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
Zhejiang Zhen You Electronics Co. Ltd. |  |  |
Related Party Transactions [Line Items] |  |  |
Accounts payable | $ 11.4 |  |
Zhejiang Zhen You Electronics Co. Ltd. | Accounts Payable | Supplier Concentration Risk |  |  |
Related Party Transactions [Line Items] |  |  |
Concentration risk percentage | 11.10% |  |

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