| 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 |
| ModifiedReferences | true | http://fasb.org/srt/role/changeNote/changeNote |
| Publisher | SEC | http://fasb.org/us-gaap/role/ref/legacyRef |
| Name | Industry Guide | http://fasb.org/us-gaap/role/ref/legacyRef |
| Number | 3 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Section | V | http://fasb.org/us-gaap/role/ref/legacyRef |
| Paragraph | D-E | http://fasb.org/us-gaap/role/ref/legacyRef |