| bg | http://www.xbrl.org/2010/role/message |
| srf_v0041: [('2B2' = "No") and ('1C8'= "No") and ('1C10'="No") and ('1C2'="No") and ('4A8'="No")] but '4A9' is not equal to 'Individual' |
| bg | http://www.xbrl.org/2010/role/terseMessage |
| srf_v0041: [('2B2' = "No") and ('1C8'= "No") and ('1C10'="No") and ('1C2'="No") and ('4A8'="No")] but '4A9' is not equal to 'Individual' |
| de | http://www.xbrl.org/2010/role/message |
| srf_v0041: [('2B2' = "No") and ('1C8'= "No") and ('1C10'="No") and ('1C2'="No") and ('4A8'="No")] but '4A9' is not equal to 'Individual' |
| de | http://www.xbrl.org/2010/role/terseMessage |
| srf_v0041: [('2B2' = "No") and ('1C8'= "No") and ('1C10'="No") and ('1C2'="No") and ('4A8'="No")] but '4A9' is not equal to 'Individual' |
| fr | http://www.xbrl.org/2010/role/message |
| srf_v0041: [('2B2' = "No") and ('1C8'= "No") and ('1C10'="No") and ('1C2'="No") and ('4A8'="No")] but '4A9' is not equal to 'Individual' |
| fr | http://www.xbrl.org/2010/role/terseMessage |
| srf_v0041: [('2B2' = "No") and ('1C8'= "No") and ('1C10'="No") and ('1C2'="No") and ('4A8'="No")] but '4A9' is not equal to 'Individual' |
| el | http://www.xbrl.org/2010/role/message |
| srf_v0041: [('2B2' = "No") and ('1C8'= "No") and ('1C10'="No") and ('1C2'="No") and ('4A8'="No")] but '4A9' is not equal to 'Individual' |
| el | http://www.xbrl.org/2010/role/terseMessage |
| srf_v0041: [('2B2' = "No") and ('1C8'= "No") and ('1C10'="No") and ('1C2'="No") and ('4A8'="No")] but '4A9' is not equal to 'Individual' |
| en | http://www.xbrl.org/2010/role/message |
| srf_v0041: [('2B2' = "No") and ('1C8'= "No") and ('1C10'="No") and ('1C2'="No") and ('4A8'="No")] but '4A9' is not equal to 'Individual' |
| en | http://www.xbrl.org/2010/role/terseMessage |
| srf_v0041: [('2B2' = "No") and ('1C8'= "No") and ('1C10'="No") and ('1C2'="No") and ('4A8'="No")] but '4A9' is not equal to 'Individual' |
| es | http://www.xbrl.org/2010/role/message |
| srf_v0041: [('2B2' = "No") and ('1C8'= "No") and ('1C10'="No") and ('1C2'="No") and ('4A8'="No")] but '4A9' is not equal to 'Individual' |
| es | http://www.xbrl.org/2010/role/terseMessage |
| srf_v0041: [('2B2' = "No") and ('1C8'= "No") and ('1C10'="No") and ('1C2'="No") and ('4A8'="No")] but '4A9' is not equal to 'Individual' |
| et | http://www.xbrl.org/2010/role/message |
| srf_v0041: [('2B2' = "No") and ('1C8'= "No") and ('1C10'="No") and ('1C2'="No") and ('4A8'="No")] but '4A9' is not equal to 'Individual' |
| et | http://www.xbrl.org/2010/role/terseMessage |
| srf_v0041: [('2B2' = "No") and ('1C8'= "No") and ('1C10'="No") and ('1C2'="No") and ('4A8'="No")] but '4A9' is not equal to 'Individual' |
| fi | http://www.xbrl.org/2010/role/message |
| srf_v0041: [('2B2' = "No") and ('1C8'= "No") and ('1C10'="No") and ('1C2'="No") and ('4A8'="No")] but '4A9' is not equal to 'Individual' |
| fi | http://www.xbrl.org/2010/role/terseMessage |
| srf_v0041: [('2B2' = "No") and ('1C8'= "No") and ('1C10'="No") and ('1C2'="No") and ('4A8'="No")] but '4A9' is not equal to 'Individual' |
| hr | http://www.xbrl.org/2010/role/message |
| srf_v0041: [('2B2' = "No") and ('1C8'= "No") and ('1C10'="No") and ('1C2'="No") and ('4A8'="No")] but '4A9' is not equal to 'Individual' |
| hr | http://www.xbrl.org/2010/role/terseMessage |
| srf_v0041: [('2B2' = "No") and ('1C8'= "No") and ('1C10'="No") and ('1C2'="No") and ('4A8'="No")] but '4A9' is not equal to 'Individual' |
| it | http://www.xbrl.org/2010/role/message |
| srf_v0041: [('2B2' = "No") and ('1C8'= "No") and ('1C10'="No") and ('1C2'="No") and ('4A8'="No")] but '4A9' is not equal to 'Individual' |
| it | http://www.xbrl.org/2010/role/terseMessage |
| srf_v0041: [('2B2' = "No") and ('1C8'= "No") and ('1C10'="No") and ('1C2'="No") and ('4A8'="No")] but '4A9' is not equal to 'Individual' |
| lt | http://www.xbrl.org/2010/role/message |
| srf_v0041: [('2B2' = "No") and ('1C8'= "No") and ('1C10'="No") and ('1C2'="No") and ('4A8'="No")] but '4A9' is not equal to 'Individual' |
| lt | http://www.xbrl.org/2010/role/terseMessage |
| srf_v0041: [('2B2' = "No") and ('1C8'= "No") and ('1C10'="No") and ('1C2'="No") and ('4A8'="No")] but '4A9' is not equal to 'Individual' |
| lv | http://www.xbrl.org/2010/role/message |
| srf_v0041: [('2B2' = "No") and ('1C8'= "No") and ('1C10'="No") and ('1C2'="No") and ('4A8'="No")] but '4A9' is not equal to 'Individual' |
| lv | http://www.xbrl.org/2010/role/terseMessage |
| srf_v0041: [('2B2' = "No") and ('1C8'= "No") and ('1C10'="No") and ('1C2'="No") and ('4A8'="No")] but '4A9' is not equal to 'Individual' |
| nl | http://www.xbrl.org/2010/role/message |
| srf_v0041: [('2B2' = "No") and ('1C8'= "No") and ('1C10'="No") and ('1C2'="No") and ('4A8'="No")] but '4A9' is not equal to 'Individual' |
| nl | http://www.xbrl.org/2010/role/terseMessage |
| srf_v0041: [('2B2' = "No") and ('1C8'= "No") and ('1C10'="No") and ('1C2'="No") and ('4A8'="No")] but '4A9' is not equal to 'Individual' |
| si | http://www.xbrl.org/2010/role/message |
| srf_v0041: [('2B2' = "No") and ('1C8'= "No") and ('1C10'="No") and ('1C2'="No") and ('4A8'="No")] but '4A9' is not equal to 'Individual' |
| si | http://www.xbrl.org/2010/role/terseMessage |
| srf_v0041: [('2B2' = "No") and ('1C8'= "No") and ('1C10'="No") and ('1C2'="No") and ('4A8'="No")] but '4A9' is not equal to 'Individual' |
| sk | http://www.xbrl.org/2010/role/message |
| srf_v0041: [('2B2' = "No") and ('1C8'= "No") and ('1C10'="No") and ('1C2'="No") and ('4A8'="No")] but '4A9' is not equal to 'Individual' |
| sk | http://www.xbrl.org/2010/role/terseMessage |
| srf_v0041: [('2B2' = "No") and ('1C8'= "No") and ('1C10'="No") and ('1C2'="No") and ('4A8'="No")] but '4A9' is not equal to 'Individual' |