Commitments and contingencies (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2018 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Commitments And Contingencies [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Future Minimum Lease Payments Under Non-cancellable Operating Leases |
The future minimum lease payments under non-cancellable operating leases as at December 31 are as follows:
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| Schedule of Minimum Royalty Payments Associated With License Agreements |
The Group is subject to the following minimum royalty payments associated with its license agreements as at December 31.
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