| 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 | Disclosure about mortgage loans receivable on real estate. Information may be provided for each individual mortgage loan or groups of mortgage loans. Disclosure is generally expected to include the number of loans by original loan amount and type of loan (for example, VA, FHA, Conventional). If grouped, loans are grouped by categories (for example, first mortgage, second mortgage, construction loans) and for each loan the type of property (for example, shopping center, high rise apartments) and its geographic location. | 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 | 948 | http://www.xbrl.org/2003/role/disclosureRef |
| SubTopic | 310 | http://www.xbrl.org/2003/role/disclosureRef |
| Section | S99 | http://www.xbrl.org/2003/role/disclosureRef |
| Paragraph | 1 | http://www.xbrl.org/2003/role/disclosureRef |
| Subparagraph | (SX 210.12-29) | http://www.xbrl.org/2003/role/disclosureRef |
| URI | http://asc.fasb.org/extlink&oid=120402547&loc=d3e617274-123014 | http://www.xbrl.org/2003/role/disclosureRef |