IndexRestricted Cash and Investments
| Name | RestrictedCashAndInvestments |
|---|---|
| Namespace | http://fasb.org/us-gaap/2020-01-31 |
| Prefix | us-gaap |
| Data type | xbrli:monetaryItemType |
| Period type | instant |
| Substitution Group | xbrli:item |
| Balance | debit |
| Nillable | True |
| Abstract | False |
Labels
| Text | Lang | Role | Container role |
|---|---|---|---|
| Restricted Cash and Investments | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Restricted Cash and Investments, Total | en-US | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| Cash and investments whose use in whole or in part is restricted for the long-term, generally by contractual agreements or regulatory requirements. For use in an unclassified balance sheet. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |