IndexRevenue Recognition, Milestone Method [Table Text Block]
| Name | RevenueRecognitionMilestoneMethodTableTextBlock |
|---|---|
| Namespace | http://fasb.org/us-gaap/2020-01-31 |
| Prefix | us-gaap |
| Data type | nonnum:textBlockItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | None |
| Nillable | True |
| Abstract | False |
Labels
| Text | Lang | Role | Container role |
|---|---|---|---|
| Revenue Recognition, Milestone Method [Table Text Block] | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Tabular disclosure of the entity's accounting policy for the recognition of revenue under the milestone method. Includes: (1) a description of the overall arrangement; (2) a description of each milestone and related contingent consideration; (3) a determination of whether each milestone is considered substantive; (4) the factors that the entity considered in determining whether the milestone or milestones are substantive; and (5) the amount of consideration recognized during the period for the milestone or milestones. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |