Industries Each Less Than 2 of portfolio [Member] Money Market Funds Plus Other Assets Less Liabilities [Member] Oil And Gas Drilling [Member] Oil And Gas Storage And Transportation [Member] Oil And Gas Refining And Marketing Sector [Member] Oil And Gas Equipment And Services [Member] Oil And Gas Exploration And Production Sector [Member] Integrated Oil And Gas [Member] TotalEnergies SE [Member] Tenaris S A [Member] Canadian Natural Resources Ltd [Member] ConocoPhillips [Member] Occidental Petroleum Corp [Member] Devon Energy Corp [Member] Suncor Energy Inc [Member] Shell PLC ADR [Member] Chevron Corp [Member] Exxon Mobil Corp [Member] MSCI World Energy Index Net [Member] C000188943 [Member] Class R6 C000023157 [Member] Class R5 C000000341 [Member] Investor Class C000071330 [Member] Class Y C000265795 [Member] Class R C000000339 [Member] Class C C000000337 [Member] Class A Standard & Poor's 500 Index [Member] Energy Sector [Member] C000000361 [Member] C000000363 [Member] C000265796 [Member] C000071334 [Member] C000000365 [Member] C000023158 [Member] C000188945 [Member] Alphabet Inc Class A [Member] NVIDIA Corp [Member] Broadcom Inc [Member] Taiwan Semiconductor Manufacturing Co Ltd ADR [Member] Arista Networks Inc [Member] Lam Research Corp [Member] Texas Instruments Inc [Member] Advanced Micro Devices Inc [Member] MACOM Technology Solutions Holdings Inc [Member] Amazon com Inc [Member] S And P North American Technology Sector Index [Member] Other Sectors each less than 2 of net assets [Member] Lowes Cos Inc [Member] Eaton Corp PLC [Member] Walmart Inc [Member] Linde PLC [Member] Philip Morris International Inc [Member] Parker Hannifin Corp [Member] Johnson And Johnson [Member] Bank of America Corp [Member] JPMorgan Chase And Co [Member] Russell 1000 Value Index [Member] C000120718 [Member] C000029688 [Member] C000000369 [Member] C000071335 [Member] C000217956 [Member] C000000368 [Member] C000000366 [Member] Healthcare Sector [Member] Financial Services Sector [Member] C000084479 [Member] C000084481 [Member] C000084484 [Member] C000084482 [Member] C000084483 [Member] C000120720 [Member] CVS Health Corp [Member] Microsoft Corp [Member] Cisco Systems Inc [Member] Wells Fargo And Co [Member] State Street Corp [Member] FedEx Corp [Member] Merck And Co Inc [Member] Others Sectors each less than 2 Of net assets [Member] Russell 2000 Value Index [Member] Melexis N V [Member] Ovintiv Inc [Member] Element Solutions Inc [Member] Western Alliance Bancorporation [Member] Allegro MicroSystems Inc [Member] Globe Life Inc [Member] Entegris Inc [Member] Rambus Inc [Member] MKS Inc [Member] Coherent Corp [Member] C000177891 [Member] C000084498 [Member] C000217957 [Member] C000084497 [Member] C000084495 [Member] C000084507 [Member] C000084509 [Member] C000095989 [Member] C000084510 [Member] C000095990 [Member] C000188946 [Member] Marvell Technology Inc [Member] STMicroelectronics N V New York Shares [Member] Rentokil Initial PLC [Member] Vertiv Holdings Co Class A [Member] NRG Energy Inc [Member] Cenovus Energy Inc [Member] Russell Midcap Value Index [Member] Silver [Member] Gold Sector [Member] Diversified Banks [Member] MSCI ACWI ex USA Index Net [Member] Philadelphia Gold And Silver Index [Member] AngloGold Ashanti PLC [Member] Pan American Silver Corp [Member] Zijin Mining Group Co Ltd H Shares [Member] Gold Fields Ltd ADR [Member] Wheaton Precious Metals Corp [Member] Franco Nevada Corp [Member] Kinross Gold Corp [Member] Barrick Mining Corp [Member] Agnico Eagle Mines Ltd [Member] Newmont Corp [Member] C000209139 [Member] C000209138 [Member] C000209137 [Member] C000209136 [Member] C000209135 [Member] C000209140 [Member] C000209146 [Member] C000209141 [Member] C000209142 [Member] C000209144 [Member] C000209145 [Member] C000209143 [Member] NXP Semiconductors N V [Member] UnitedHealth Group Inc [Member] Huntington Bancshares Inc [Member] Anheuser Busch InBev S A N V [Member] Fifth Third Bancorp [Member] Investment Type [Axis] Net Assets Investment Company Portfolio Turnover No Trading Symbol Flag