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Summary of Significant Accounting Policies - Changes In Accured Sales Returns (Details) - USD ($) $ in Millions | 6 Months Ended |
--- | --- | ---
Jun. 30, 2018 | Dec. 31, 2017
Changes in Accrued Sales Returns [Roll Forward] |  |
Beginning balance | $ 19.6 |
Ending balance | 22.4 |
Sales Returns |  |
Changes in Accrued Sales Returns [Roll Forward] |  |
Beginning balance | 31.7 |
Reclassification and remeasurement of sales return asset under Topic 606 |  | $ 1.7
Amounts accrued | 46.5 |
Returns charged to accrual | (43.3) |
Ending balance | 34.9 |
Previously Reported | Sales Returns |  |
Changes in Accrued Sales Returns [Roll Forward] |  |
Beginning balance | $ 30.0 |

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- Definition Changes in Accrued Sales Returns [Roll Forward] + References No definition available. + Details
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- Definition Carrying value as of the balance sheet date of obligations incurred through that date for estimated product return rights granted to customers. + References No definition available. + Details
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- Definition Increase in the accrual for estimated sales returns. + References No definition available. + Details
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- Definition Reduction in the accrual for returns charged to sales. The aggregate refunds recognized during an accounting period due to goods returned. + References No definition available. + Details
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- Definition Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption. + References No definition available. + Details
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- Details
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- Details
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