| elementCreationTaxonomyVersion | 2013 | http://fasb.org/us-gaap/role/tin/taxonomyImplementationNote |
| SourceName | Taxonomy Technical Improvement | http://fasb.org/srt/role/changeNote/changeNote |
| TaxonomyVersion | 2019 | http://fasb.org/srt/role/changeNote/changeNote |
| ChangeDate | 2018-10 | http://fasb.org/srt/role/changeNote/changeNote |
| ModifiedLabels | true | http://fasb.org/srt/role/changeNote/changeNote |
| Publisher | SEC | http://www.xbrl.org/2009/role/commonPracticeRef |
| Name | Regulation S-K (SK) | http://www.xbrl.org/2009/role/commonPracticeRef |
| Number | 229 | http://www.xbrl.org/2009/role/commonPracticeRef |
| Section | 1204 | http://www.xbrl.org/2009/role/commonPracticeRef |
| Subsection | Instruction 5 | http://www.xbrl.org/2009/role/commonPracticeRef |
| Publisher | SEC | http://www.xbrl.org/2003/role/disclosureRef |
| Name | Regulation S-K (SK) | http://www.xbrl.org/2003/role/disclosureRef |
| Number | 229 | http://www.xbrl.org/2003/role/disclosureRef |
| Section | 1204 | http://www.xbrl.org/2003/role/disclosureRef |
| Subsection | Instruction 5 | http://www.xbrl.org/2003/role/disclosureRef |