| 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 |
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| Name | Accounting Standards Codification | http://www.xbrl.org/2003/role/exampleRef |
| Topic | 948 | http://www.xbrl.org/2003/role/exampleRef |
| SubTopic | 310 | http://www.xbrl.org/2003/role/exampleRef |
| Section | S99 | http://www.xbrl.org/2003/role/exampleRef |
| Paragraph | 1 | http://www.xbrl.org/2003/role/exampleRef |
| Subparagraph | (SX 210.12-29(Footnote 4)) | http://www.xbrl.org/2003/role/exampleRef |
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| Name | Accounting Standards Codification | http://www.xbrl.org/2003/role/exampleRef |
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| Section | S99 | http://www.xbrl.org/2003/role/exampleRef |
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