IndexRevenue Recognition, Retrospective Rate-Setting Systems, Policy [Policy Text Block]
| Name | RevenueRecognitionRetrospectiveRateSettingSystemsPolicyPolicyTextBlock |
|---|---|
| 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, Retrospective Rate-Setting Systems, Policy [Policy Text Block] | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Disclosure of accounting policy for revenue recognition of retrospective rate setting systems. This policy discloses differences between the original estimate and subsequent revision of payment rates under the retrospective rate setting method that are included in the Statement of Operations in the period in which the revisions are made and disclosed. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |