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Basis of Presentation and Summary of Significant Accounting Policies (Details) - USD ($) shares in Millions, $ in Millions | 3 Months Ended | 6 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017 | Dec. 31, 2017 | Jan. 01, 2018
Related Party Transaction [Line Items] |  |  |  |  |  |
Percentage of FIFO inventory (percent) |  |  |  |  |  | 95.00%
Total marketing expenses | $ 25.4 | $ 27.7 | $ 40.9 | $ 39.7 |  |
Prepaid advertising and promotional endorsement costs | $ 9.0 |  | $ 9.0 |  | $ 7.0 |
Series A Preferred Stock [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Series A preferred shares, number of shares issuable if converted (shares) | 13.8 |  | 13.8 |  |  |
Percentage of common stock if-converted Series A preferred stock (percent) |  |  | 16.80% |  |  |
Blackstone [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Expenses paid to affiliates | $ 0.3 | $ 0.4 | $ 0.4 | $ 0.5 |  |
Product Concentration Risk [Member] | Finished Goods Inventory [Member] | Inventories [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Percentage of finished goods in consolidated inventories (percent) |  |  | 98.10% |  | 97.50% |

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