| Publisher | SEC | http://www.xbrl.org/2003/role/presentationRef |
| Name | Form 10-K | http://www.xbrl.org/2003/role/presentationRef |
| Number | 249 | http://www.xbrl.org/2003/role/presentationRef |
| Section | 310 | http://www.xbrl.org/2003/role/presentationRef |
| Publisher | SEC | http://www.xbrl.org/2003/role/presentationRef |
| Name | Form 20-F | http://www.xbrl.org/2003/role/presentationRef |
| Number | 249 | http://www.xbrl.org/2003/role/presentationRef |
| Section | 220 | http://www.xbrl.org/2003/role/presentationRef |
| Subsection | f | http://www.xbrl.org/2003/role/presentationRef |
| Publisher | SEC | http://www.xbrl.org/2003/role/presentationRef |
| Name | Form 40-F | http://www.xbrl.org/2003/role/presentationRef |
| Number | 249 | http://www.xbrl.org/2003/role/presentationRef |
| Section | 240 | http://www.xbrl.org/2003/role/presentationRef |
| Subsection | f | http://www.xbrl.org/2003/role/presentationRef |