Label	Element	Value
Risk Return Abstract	rr_RiskReturnAbstract
Document Type	dei_DocumentType	485BPOS
Period End Date	dei_DocumentPeriodEndDate	Mar. 31, 2021
Registrant Name	dei_EntityRegistrantName	Rydex Series Funds
CIK	dei_EntityCentralIndexKey	0000899148
Amendment Flag	dei_AmendmentFlag	false
Document Created Date	dei_DocumentCreationDate	Jul. 29, 2021
Effective Date	dei_DocumentEffectiveDate	Aug. 01, 2021
Prospectus Date	rr_ProspectusDate	Aug. 01, 2021
Entity Inv Company Type	dei_EntityInvCompanyType	N-1A
Nova Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYANX
Nova Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYNCX
Nova Fund | Investor Class
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYNVX
Nova Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYNHX
SP 500 Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYSOX
SP 500 Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYSYX
SP 500 Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYSPX
Inverse SP 500 Strategy Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYARX
Inverse SP 500 Strategy Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYUCX
Inverse SP 500 Strategy Fund | Investor Class
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYURX
Inverse SP 500 Strategy Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYUHX
Monthly Rebalance NASDAQ-100 2x Strategy Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RMQAX
Monthly Rebalance NASDAQ-100 2x Strategy Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RMQCX
Monthly Rebalance NASDAQ-100 2x Strategy Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RMQHX
NASDAQ-100 Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYATX
NASDAQ-100 Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYCOX
NASDAQ-100 Fund | Investor Class
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYOCX
NASDAQ-100 Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYHOX
Inverse NASDAQ-100 Strategy Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYAPX
Inverse NASDAQ-100 Strategy Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYACX
Inverse NASDAQ-100 Strategy Fund | Investor Class
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYAIX
Inverse NASDAQ-100 Strategy Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYALX
Mid-Cap 1.5x Strategy Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYAHX
Mid-Cap 1.5x Strategy Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYDCX
Mid-Cap 1.5x Strategy Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYMDX
Inverse Mid-Cap Strategy Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYAGX
Inverse Mid-Cap Strategy Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYCLX
Inverse Mid-Cap Strategy Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYMHX
Russell 2000 1.5x Strategy Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYAKX
Russell 2000 1.5x Strategy Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYCMX
Russell 2000 1.5x Strategy Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYMKX
Russell 2000 Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYRUX
Russell 2000 Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYROX
Russell 2000 Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYRHX
Inverse Russell 2000 Strategy Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYAFX
Inverse Russell 2000 Strategy Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYCQX
Inverse Russell 2000 Strategy Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYSHX
Dow Jones Industrial Average Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYDAX
Dow Jones Industrial Average Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYDKX
Dow Jones Industrial Average Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYDHX
SP 500 Pure Growth Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYLGX
SP 500 Pure Growth Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYGRX
SP 500 Pure Growth Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYAWX
SP 500 Pure Value Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYLVX
SP 500 Pure Value Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYVVX
SP 500 Pure Value Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYZAX
SP MidCap 400 Pure Growth Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYMGX
SP MidCap 400 Pure Growth Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYCKX
SP MidCap 400 Pure Growth Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYBHX
SP MidCap 400 Pure Value Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYMVX
SP MidCap 400 Pure Value Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYMMX
SP MidCap 400 Pure Value Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYAVX
SP SmallCap 600 Pure Growth Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYSGX
SP SmallCap 600 Pure Growth Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYWCX
SP SmallCap 600 Pure Growth Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYWAX
SP SmallCap 600 Pure Value Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYSVX
SP SmallCap 600 Pure Value Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYYCX
SP SmallCap 600 Pure Value Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYAZX
Banking Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYBKX
Banking Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYKCX
Banking Fund | Investor Class
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYKIX
Banking Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYKAX
Basic Materials Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYBMX
Basic Materials Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYBCX
Basic Materials Fund | Investor Class
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYBIX
Basic Materials Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYBAX
Biotechnology Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYBOX
Biotechnology Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYCFX
Biotechnology Fund | Investor Class
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYOIX
Biotechnology Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYOAX
Consumer Products Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYPDX
Consumer Products Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYCPX
Consumer Products Fund | Investor Class
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYCIX
Consumer Products Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYCAX
Electronics Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYELX
Electronics Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYSCX
Electronics Fund | Investor Class
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYSIX
Electronics Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYSAX
Energy Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYENX
Energy Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYECX
Energy Fund | Investor Class
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYEIX
Energy Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYEAX
Energy Services Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYESX
Energy Services Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYVCX
Energy Services Fund | Investor Class
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYVIX
Energy Services Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYVAX
Financial Services Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYFNX
Financial Services Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYFCX
Financial Services Fund | Investor Class
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYFIX
Financial Services Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYFAX
Health Care Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYHEX
Health Care Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYHCX
Health Care Fund | Investor Class
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYHIX
Health Care Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYHAX
Internet Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYINX
Internet Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYICX
Internet Fund | Investor Class
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYIIX
Internet Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYIAX
Leisure Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYLSX
Leisure Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYLCX
Leisure Fund | Investor Class
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYLIX
Leisure Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYLAX
Precious Metals Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYMNX
Precious Metals Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYZCX
Precious Metals Fund | Investor Class
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYPMX
Precious Metals Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYMPX
Retailing Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYRTX
Retailing Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYRCX
Retailing Fund | Investor Class
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYRIX
Retailing Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYRAX
Technology Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYTHX
Technology Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYCHX
Technology Fund | Investor Class
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYTIX
Technology Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYTAX
Telecommunications Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYTLX
Telecommunications Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYCSX
Telecommunications Fund | Investor Class
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYMIX
Telecommunications Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYMAX
Transportation Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYTSX
Transportation Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYCNX
Transportation Fund | Investor Class
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYPIX
Transportation Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYPAX
Utilities Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYUTX
Utilities Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYCUX
Utilities Fund | Investor Class
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYUIX
Utilities Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYAUX
Europe 1.25x Strategy Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYAEX
Europe 1.25x Strategy Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYCEX
Europe 1.25x Strategy Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYEUX
Japan 2x Strategy Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYJSX
Japan 2x Strategy Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYJTX
Japan 2x Strategy Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYJHX
Emerging Markets 2x Strategy Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYWTX
Emerging Markets 2x Strategy Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYWUX
Emerging Markets 2x Strategy Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYWVX
Inverse Emerging Markets 2x Strategy Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYWWX
Inverse Emerging Markets 2x Strategy Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYWZX
Inverse Emerging Markets 2x Strategy Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYWYX
Strengthening Dollar 2x Strategy Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYSDX
Strengthening Dollar 2x Strategy Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYSJX
Strengthening Dollar 2x Strategy Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYSBX
Weakening Dollar 2x Strategy Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYWDX
Weakening Dollar 2x Strategy Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYWJX
Weakening Dollar 2x Strategy Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYWBX
Real Estate Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYREX
Real Estate Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYCRX
Real Estate Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYHRX
Government Long Bond 1.2x Strategy Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYABX
Government Long Bond 1.2x Strategy Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYCGX
Government Long Bond 1.2x Strategy Fund | Investor Class
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYGBX
Government Long Bond 1.2x Strategy Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYHBX
Inverse Government Long Bond Strategy Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYAQX
Inverse Government Long Bond Strategy Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYJCX
Inverse Government Long Bond Strategy Fund | Investor Class
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYJUX
Inverse Government Long Bond Strategy Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYHJX
High Yield Strategy Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYHDX
High Yield Strategy Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYHHX
High Yield Strategy Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYHGX
Inverse High Yield Strategy Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYILX
Inverse High Yield Strategy Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYIYX
Inverse High Yield Strategy Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYIHX
Emerging Markets Bond Strategy Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYIEX
Emerging Markets Bond Strategy Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYFTX
Emerging Markets Bond Strategy Fund | Class H
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYGTX
Guggenheim Long Short Equity Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYAMX
Guggenheim Long Short Equity Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYISX
Guggenheim Long Short Equity Fund | Institutional
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYQTX
Guggenheim Long Short Equity Fund | Class P
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYSRX
U.S. Government Money Market Fund | Money Market
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	RYFXX