Segment Information - Reconciliation of Operating Profit (Loss) from Segments to Consolidated (Parenthetical) (Detail) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2018 |
Sep. 30, 2017 |
Sep. 30, 2018 |
Sep. 30, 2017 |
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| Selling, General and Administrative Expenses [Member] | China [Member] | ||||
| Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items] | ||||
| Independent service providers service fees costs | $ 135.7 | $ 99.5 | $ 398.3 | $ 316.9 |
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- Definition Independent service providers service fee costs. No definition available.
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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. No definition available.
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