| bg | http://www.xbrl.org/2010/role/message |
| srf_v0003: '1C1' and '1C7' cannot be equal to 'Yes' or 'No' at the same time |
| bg | http://www.xbrl.org/2010/role/terseMessage |
| srf_v0003: '1C1' and '1C7' cannot be equal to 'Yes' or 'No' at the same time |
| de | http://www.xbrl.org/2010/role/message |
| srf_v0003: '1C1' and '1C7' cannot be equal to 'Yes' or 'No' at the same time |
| de | http://www.xbrl.org/2010/role/terseMessage |
| srf_v0003: '1C1' and '1C7' cannot be equal to 'Yes' or 'No' at the same time |
| fr | http://www.xbrl.org/2010/role/message |
| srf_v0003: '1C1' and '1C7' cannot be equal to 'Yes' or 'No' at the same time |
| fr | http://www.xbrl.org/2010/role/terseMessage |
| srf_v0003: '1C1' and '1C7' cannot be equal to 'Yes' or 'No' at the same time |
| el | http://www.xbrl.org/2010/role/message |
| srf_v0003: '1C1' and '1C7' cannot be equal to 'Yes' or 'No' at the same time |
| el | http://www.xbrl.org/2010/role/terseMessage |
| srf_v0003: '1C1' and '1C7' cannot be equal to 'Yes' or 'No' at the same time |
| en | http://www.xbrl.org/2010/role/message |
| srf_v0003: '1C1' and '1C7' cannot be equal to 'Yes' or 'No' at the same time |
| en | http://www.xbrl.org/2010/role/terseMessage |
| srf_v0003: '1C1' and '1C7' cannot be equal to 'Yes' or 'No' at the same time |
| es | http://www.xbrl.org/2010/role/message |
| srf_v0003: '1C1' and '1C7' cannot be equal to 'Yes' or 'No' at the same time |
| es | http://www.xbrl.org/2010/role/terseMessage |
| srf_v0003: '1C1' and '1C7' cannot be equal to 'Yes' or 'No' at the same time |
| et | http://www.xbrl.org/2010/role/message |
| srf_v0003: '1C1' and '1C7' cannot be equal to 'Yes' or 'No' at the same time |
| et | http://www.xbrl.org/2010/role/terseMessage |
| srf_v0003: '1C1' and '1C7' cannot be equal to 'Yes' or 'No' at the same time |
| fi | http://www.xbrl.org/2010/role/message |
| srf_v0003: '1C1' and '1C7' cannot be equal to 'Yes' or 'No' at the same time |
| fi | http://www.xbrl.org/2010/role/terseMessage |
| srf_v0003: '1C1' and '1C7' cannot be equal to 'Yes' or 'No' at the same time |
| hr | http://www.xbrl.org/2010/role/message |
| srf_v0003: '1C1' and '1C7' cannot be equal to 'Yes' or 'No' at the same time |
| hr | http://www.xbrl.org/2010/role/terseMessage |
| srf_v0003: '1C1' and '1C7' cannot be equal to 'Yes' or 'No' at the same time |
| it | http://www.xbrl.org/2010/role/message |
| srf_v0003: '1C1' and '1C7' cannot be equal to 'Yes' or 'No' at the same time |
| it | http://www.xbrl.org/2010/role/terseMessage |
| srf_v0003: '1C1' and '1C7' cannot be equal to 'Yes' or 'No' at the same time |
| lt | http://www.xbrl.org/2010/role/message |
| srf_v0003: '1C1' and '1C7' cannot be equal to 'Yes' or 'No' at the same time |
| lt | http://www.xbrl.org/2010/role/terseMessage |
| srf_v0003: '1C1' and '1C7' cannot be equal to 'Yes' or 'No' at the same time |
| lv | http://www.xbrl.org/2010/role/message |
| srf_v0003: '1C1' and '1C7' cannot be equal to 'Yes' or 'No' at the same time |
| lv | http://www.xbrl.org/2010/role/terseMessage |
| srf_v0003: '1C1' and '1C7' cannot be equal to 'Yes' or 'No' at the same time |
| nl | http://www.xbrl.org/2010/role/message |
| srf_v0003: '1C1' and '1C7' cannot be equal to 'Yes' or 'No' at the same time |
| nl | http://www.xbrl.org/2010/role/terseMessage |
| srf_v0003: '1C1' and '1C7' cannot be equal to 'Yes' or 'No' at the same time |
| si | http://www.xbrl.org/2010/role/message |
| srf_v0003: '1C1' and '1C7' cannot be equal to 'Yes' or 'No' at the same time |
| si | http://www.xbrl.org/2010/role/terseMessage |
| srf_v0003: '1C1' and '1C7' cannot be equal to 'Yes' or 'No' at the same time |
| sk | http://www.xbrl.org/2010/role/message |
| srf_v0003: '1C1' and '1C7' cannot be equal to 'Yes' or 'No' at the same time |
| sk | http://www.xbrl.org/2010/role/terseMessage |
| srf_v0003: '1C1' and '1C7' cannot be equal to 'Yes' or 'No' at the same time |