| Note | Element is intended to be used for deferred income that is out of scope for FASB Accounting Standards Codification Topic 606. Element intended to be used for contract liability under Topic 606 is identified in tin-part:AlternateElement. | http://fasb.org/us-gaap/role/tin/usage |
| PublishDate | 2019-01 | http://fasb.org/us-gaap/role/tin/usage |
| AlternateElement | ContractWithCustomerLiability | http://fasb.org/us-gaap/role/tin/usage |
| elementCreationTaxonomyVersion | 2019 | http://fasb.org/us-gaap/role/tin/taxonomyImplementationNote |
| SourceName | Revenue:Taxonomy Technical Improvement | http://fasb.org/srt/role/changeNote/changeNote |
| TaxonomyVersion | 2019 | http://fasb.org/srt/role/changeNote/changeNote |
| ChangeDate | 2018-09 | http://fasb.org/srt/role/changeNote/changeNote |
| NewElement | true | http://fasb.org/srt/role/changeNote/changeNote |
| Source_ASU_Number | 2014-09 | 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 | 470 | http://www.xbrl.org/2009/role/commonPracticeRef |
| SubTopic | 10 | http://www.xbrl.org/2009/role/commonPracticeRef |
| Section | 25 | http://www.xbrl.org/2009/role/commonPracticeRef |
| Paragraph | 2 | http://www.xbrl.org/2009/role/commonPracticeRef |
| URI | http://asc.fasb.org/extlink&oid=28183603&loc=d3e692-112598 | http://www.xbrl.org/2009/role/commonPracticeRef |