Summary of Significant Accounting Policies (Tables) |
12 Months Ended | |||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2019 | ||||||||||||||||||||||||||||||||||||
| Summary of Significant Accounting Policies | ||||||||||||||||||||||||||||||||||||
| Summary of contract liabilities |
|
|||||||||||||||||||||||||||||||||||
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Tabular disclosure of contract balances and changes in contract balances. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|