Property, Plant and Equipment - Additional Information (Detail) |
3 Months Ended |
|---|---|
|
Mar. 31, 2019
license
| |
| 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.
|
| 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.
|
| X | ||||||||||
- Details
|