| Note | Element is intended to be used for financial statement schedule specified by Securities and Exchange Commission Regulation S-X. | http://fasb.org/us-gaap/role/tin/taxonomyImplementationNote |
| PublishDate | 2018-01 | http://fasb.org/us-gaap/role/tin/taxonomyImplementationNote |
| TaxonomyVersion | 2018 | http://fasb.org/srt/role/changeNote/changeNote |
| ChangeDate | 2017-08 | http://fasb.org/srt/role/changeNote/changeNote |
| ModifiedReferences | true | http://fasb.org/srt/role/changeNote/changeNote |
| ModifiedLabels | true | http://fasb.org/srt/role/changeNote/changeNote |
| ModifiedDocumentation | true | http://fasb.org/srt/role/changeNote/changeNote |
| PreviousDocumentation | Explanation of difference between the amount of an investment shown in the balance sheet with the original cost or fair value. | http://fasb.org/srt/role/changeNote/changeNote |
| Publisher | FASB | http://www.xbrl.org/2003/role/disclosureRef |
| Name | Accounting Standards Codification | http://www.xbrl.org/2003/role/disclosureRef |
| Topic | 946 | http://www.xbrl.org/2003/role/disclosureRef |
| SubTopic | 320 | http://www.xbrl.org/2003/role/disclosureRef |
| Section | S99 | http://www.xbrl.org/2003/role/disclosureRef |
| Paragraph | 7 | http://www.xbrl.org/2003/role/disclosureRef |
| Subparagraph | (SX 210.12-15(Footnote 2)) | http://www.xbrl.org/2003/role/disclosureRef |
| URI | http://asc.fasb.org/extlink&oid=120401592&loc=d3e611379-123010 | http://www.xbrl.org/2003/role/disclosureRef |
Index