IndexInvestor Relations Contact [Member]
| Name | InvestorRelationsContactMember |
|---|---|
| Namespace | http://xbrl.sec.gov/dei/2019-01-31 |
| Prefix | dei |
| Data type | nonnum:domainItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | None |
| Nillable | True |
| Abstract | True |
Labels
| Text | Lang | Role | Container role |
|---|---|---|---|
| Investor relations contact for the entity | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Investor Relations Contact [Member] | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |