Net Assets Investment Company, Portfolio Turnover C000195597 [Member] Empower Emerging Markets Equity Fund - Institutional Class C000195598 [Member] Empower Emerging Markets Equity Fund - Investor Class C000155764 [Member] Empower International Growth Fund - Institutional Class C000069814 [Member] Empower International Growth Fund - Investor Class C000155807 [Member] Empower International Index Fund- Institutional Class C000095750 [Member] Empower International Index Fund - Investor Class C000155763 [Member] Empower International Value Fund - Institutional Class C000069813 [Member] Empower International Value Fund - Investor Class Investment Type [Axis] JAPAN UNITED KINGDOM FRANCE SWITZERLAND GERMANY UNITED STATES NETHERLANDS IRELAND SPAIN AUSTRALIA CANADA SWEDEN HONG KONG TAIWAN DENMARK NORWAY LUXEMBOURG ISRAEL ITALY Countries Less Then 1 [Member] Dreyfus Institutional Preferred Government Money Market Fund Institutional Class [Member] Taiwan Semiconductor Manufacturing Co Ltd Sponsored ADR [Member] UBS Group AG [Member] NatWest Group PLC [Member] Schneider Electric SE [Member] Franco-Nevada Corp [Member] Roche Holding AG [Member] Novartis AG [Member] Legrand SA [Member] TotalEnergies SE [Member] SINGAPORE FINLAND ASML Holding NV [Member] HSBC Holdings PLC [Member] AstraZeneca PLC [Member] Nestle SA [Member] Siemens AG [Member] Shell PLC [Member] Tokyo Electron Ltd [Member] CHINA INDIA Recruit Holdings Co Ltd [Member] InterContinental Hotels Group PLC [Member] Safran SA [Member] Novo Nordisk A/S Class B [Member] Compass Group PLC [Member] Tencent Holdings Ltd [Member] KOREA, REPUBLIC OF BRAZIL SAUDI ARABIA SOUTH AFRICA MEXICO Taiwan Semiconductor Manufacturing Co Ltd [Member] Samsung Electronics Co Ltd [Member] SK hynix Inc [Member] SK Square Co Ltd [Member] MediaTek Inc [Member] Delta Electronics Inc [Member] Alibaba Group Holding Ltd [Member] Samsung Electro-Mechanics Co Ltd [Member]