Revenue (Tables) |
3 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Mar. 31, 2020 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Revenue | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Summary of revenue categories |
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| Schedule of movements in deferred revenue |
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| X | ||||||||||
- Definition Tabular disclosure of contract balances and changes in contract balances. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- References No definition available.
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