XML 403 R1.htm IDEA: XBRL DOCUMENT v2.4.0.8
Document And Entity Information
0 Months Ended
Jul. 29, 2013
Document And Entity Information  
Document Type 485BPOS
Document Period End Date Mar. 31, 2013
Registrant Name RYDEX SERIES FUNDS
Central Index Key 0000899148
Amendment Flag false
Document Creation Date Jul. 29, 2013
Document Effective Date Aug. 01, 2013
Prospectus Date Aug. 01, 2013