Property, Plant and Equipment - Additional Information (Detail) |
3 Months Ended |
|---|---|
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Mar. 31, 2018
license
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| United Kingdom | |
| Property, Plant and Equipment [Line Items] | |
| Number of non-operating interest in licenses | 2 |
| X | ||||||||||
- Definition Number of non-operating interest in licenses held by entity. No definition available.
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| X | ||||||||||
- 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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| X | ||||||||||
- Details
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