| SourceName | Hedging | http://fasb.org/srt/role/changeNote/changeNote |
| TaxonomyVersion | 2018 | http://fasb.org/srt/role/changeNote/changeNote |
| ChangeDate | 2017-11 | http://fasb.org/srt/role/changeNote/changeNote |
| ModifiedReferences | true | http://fasb.org/srt/role/changeNote/changeNote |
| Source_ASU_Number | 2017-12 | http://fasb.org/srt/role/changeNote/changeNote |
| Publisher | FASB | http://www.xbrl.org/2009/role/commonPracticeRef |
| Name | Accounting Standards Codification | http://www.xbrl.org/2009/role/commonPracticeRef |
| Topic | 815 | http://www.xbrl.org/2009/role/commonPracticeRef |
| SubTopic | 15 | http://www.xbrl.org/2009/role/commonPracticeRef |
| URI | http://asc.fasb.org/subtopic&trid=2229187 | http://www.xbrl.org/2009/role/commonPracticeRef |