Shareholder Report, Holdings (Details)	Jun. 30, 2026
Empower S&P Small Cap 600® Index Fund - Class L \| FormFactor Inc [Member]
Holdings [Line Items]
Percent of Total Investments	0.66%
Empower S&P Small Cap 600® Index Fund - Class L \| Viasat Inc [Member]
Holdings [Line Items]
Percent of Total Investments	0.63%
Empower S&P Small Cap 600® Index Fund - Class L \| Molina Healthcare Inc [Member]
Holdings [Line Items]
Percent of Total Investments	0.62%
Empower S&P Small Cap 600® Index Fund - Class L \| Argan Inc [Member]
Holdings [Line Items]
Percent of Total Investments	0.59%
Empower S&P Small Cap 600® Index Fund - Class L \| BrightSpring Health Services Inc [Member]
Holdings [Line Items]
Percent of Total Investments	0.57%
Empower S&P Small Cap 600® Index Fund - Class L \| MaxLinear Inc [Member]
Holdings [Line Items]
Percent of Total Investments	0.57%
Empower S&P Small Cap 600® Index Fund - Class L \| Krystal Biotech Inc [Member]
Holdings [Line Items]
Percent of Total Investments	0.51%
Empower S&P Small Cap 600® Index Fund - Class L \| ESCO Technologies Inc [Member]
Holdings [Line Items]
Percent of Total Investments	0.48%
Empower S&P Small Cap 600® Index Fund - Class L \| Element Solutions Inc [Member]
Holdings [Line Items]
Percent of Total Investments	0.57%
Empower S&P Small Cap 600® Index Fund - Class L \| Dreyfus Institutional Preferred Government Money Market Fund Institutional Class [Member]
Holdings [Line Items]
Percent of Total Investments	3.20%
Empower S&P Small Cap 600® Index Fund - Class L \| Short Term Investments [Member]
Holdings [Line Items]
Percent of Total Investments	0.35%
Empower S&P Small Cap 600® Index Fund - Class L \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Total Investments	23.35%
Empower S&P Small Cap 600® Index Fund - Class L \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Total Investments	15.58%
Empower S&P Small Cap 600® Index Fund - Class L \| Consumer, Cyclical [Member]
Holdings [Line Items]
Percent of Total Investments	13.98%
Empower S&P Small Cap 600® Index Fund - Class L \| Consumer, Non-cyclical [Member]
Holdings [Line Items]
Percent of Total Investments	18.53%
Empower S&P Small Cap 600® Index Fund - Class L \| Energy Sector [Member]
Holdings [Line Items]
Percent of Total Investments	5.39%
Empower S&P Small Cap 600® Index Fund - Class L \| Technology Sector [Member]
Holdings [Line Items]
Percent of Total Investments	8.87%
Empower S&P Small Cap 600® Index Fund - Class L \| Utilities Sector [Member]
Holdings [Line Items]
Percent of Total Investments	1.92%
Empower S&P Small Cap 600® Index Fund - Class L \| Government Money Market Mutual Funds [Member]
Holdings [Line Items]
Percent of Total Investments	3.20%
Empower S&P Small Cap 600® Index Fund - Class L \| Basic Materials [Member]
Holdings [Line Items]
Percent of Total Investments	3.88%
Empower S&P Small Cap 600® Index Fund - Class L \| Communications Sector [Member]
Holdings [Line Items]
Percent of Total Investments	4.95%
Empower S&P Small Cap 600® Index Fund - Institutional Class \| FormFactor Inc [Member]
Holdings [Line Items]
Percent of Total Investments	0.66%
Empower S&P Small Cap 600® Index Fund - Institutional Class \| Viasat Inc [Member]
Holdings [Line Items]
Percent of Total Investments	0.63%
Empower S&P Small Cap 600® Index Fund - Institutional Class \| Molina Healthcare Inc [Member]
Holdings [Line Items]
Percent of Total Investments	0.62%
Empower S&P Small Cap 600® Index Fund - Institutional Class \| Argan Inc [Member]
Holdings [Line Items]
Percent of Total Investments	0.59%
Empower S&P Small Cap 600® Index Fund - Institutional Class \| BrightSpring Health Services Inc [Member]
Holdings [Line Items]
Percent of Total Investments	0.57%
Empower S&P Small Cap 600® Index Fund - Institutional Class \| MaxLinear Inc [Member]
Holdings [Line Items]
Percent of Total Investments	0.57%
Empower S&P Small Cap 600® Index Fund - Institutional Class \| Krystal Biotech Inc [Member]
Holdings [Line Items]
Percent of Total Investments	0.51%
Empower S&P Small Cap 600® Index Fund - Institutional Class \| ESCO Technologies Inc [Member]
Holdings [Line Items]
Percent of Total Investments	0.48%
Empower S&P Small Cap 600® Index Fund - Institutional Class \| Element Solutions Inc [Member]
Holdings [Line Items]
Percent of Total Investments	0.57%
Empower S&P Small Cap 600® Index Fund - Institutional Class \| Dreyfus Institutional Preferred Government Money Market Fund Institutional Class [Member]
Holdings [Line Items]
Percent of Total Investments	3.20%
Empower S&P Small Cap 600® Index Fund - Institutional Class \| Short Term Investments [Member]
Holdings [Line Items]
Percent of Total Investments	0.35%
Empower S&P Small Cap 600® Index Fund - Institutional Class \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Total Investments	23.35%
Empower S&P Small Cap 600® Index Fund - Institutional Class \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Total Investments	15.58%
Empower S&P Small Cap 600® Index Fund - Institutional Class \| Consumer, Cyclical [Member]
Holdings [Line Items]
Percent of Total Investments	13.98%
Empower S&P Small Cap 600® Index Fund - Institutional Class \| Consumer, Non-cyclical [Member]
Holdings [Line Items]
Percent of Total Investments	18.53%
Empower S&P Small Cap 600® Index Fund - Institutional Class \| Energy Sector [Member]
Holdings [Line Items]
Percent of Total Investments	5.39%
Empower S&P Small Cap 600® Index Fund - Institutional Class \| Technology Sector [Member]
Holdings [Line Items]
Percent of Total Investments	8.87%
Empower S&P Small Cap 600® Index Fund - Institutional Class \| Utilities Sector [Member]
Holdings [Line Items]
Percent of Total Investments	1.92%
Empower S&P Small Cap 600® Index Fund - Institutional Class \| Government Money Market Mutual Funds [Member]
Holdings [Line Items]
Percent of Total Investments	3.20%
Empower S&P Small Cap 600® Index Fund - Institutional Class \| Basic Materials [Member]
Holdings [Line Items]
Percent of Total Investments	3.88%
Empower S&P Small Cap 600® Index Fund - Institutional Class \| Communications Sector [Member]
Holdings [Line Items]
Percent of Total Investments	4.95%
Empower S&P Small Cap 600® Index Fund - Investor Class \| FormFactor Inc [Member]
Holdings [Line Items]
Percent of Total Investments	0.66%
Empower S&P Small Cap 600® Index Fund - Investor Class \| Viasat Inc [Member]
Holdings [Line Items]
Percent of Total Investments	0.63%
Empower S&P Small Cap 600® Index Fund - Investor Class \| Molina Healthcare Inc [Member]
Holdings [Line Items]
Percent of Total Investments	0.62%
Empower S&P Small Cap 600® Index Fund - Investor Class \| Argan Inc [Member]
Holdings [Line Items]
Percent of Total Investments	0.59%
Empower S&P Small Cap 600® Index Fund - Investor Class \| BrightSpring Health Services Inc [Member]
Holdings [Line Items]
Percent of Total Investments	0.57%
Empower S&P Small Cap 600® Index Fund - Investor Class \| MaxLinear Inc [Member]
Holdings [Line Items]
Percent of Total Investments	0.57%
Empower S&P Small Cap 600® Index Fund - Investor Class \| Krystal Biotech Inc [Member]
Holdings [Line Items]
Percent of Total Investments	0.51%
Empower S&P Small Cap 600® Index Fund - Investor Class \| ESCO Technologies Inc [Member]
Holdings [Line Items]
Percent of Total Investments	0.48%
Empower S&P Small Cap 600® Index Fund - Investor Class \| Element Solutions Inc [Member]
Holdings [Line Items]
Percent of Total Investments	0.57%
Empower S&P Small Cap 600® Index Fund - Investor Class \| Dreyfus Institutional Preferred Government Money Market Fund Institutional Class [Member]
Holdings [Line Items]
Percent of Total Investments	3.20%
Empower S&P Small Cap 600® Index Fund - Investor Class \| Short Term Investments [Member]
Holdings [Line Items]
Percent of Total Investments	0.35%
Empower S&P Small Cap 600® Index Fund - Investor Class \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Total Investments	23.35%
Empower S&P Small Cap 600® Index Fund - Investor Class \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Total Investments	15.58%
Empower S&P Small Cap 600® Index Fund - Investor Class \| Consumer, Cyclical [Member]
Holdings [Line Items]
Percent of Total Investments	13.98%
Empower S&P Small Cap 600® Index Fund - Investor Class \| Consumer, Non-cyclical [Member]
Holdings [Line Items]
Percent of Total Investments	18.53%
Empower S&P Small Cap 600® Index Fund - Investor Class \| Energy Sector [Member]
Holdings [Line Items]
Percent of Total Investments	5.39%
Empower S&P Small Cap 600® Index Fund - Investor Class \| Technology Sector [Member]
Holdings [Line Items]
Percent of Total Investments	8.87%
Empower S&P Small Cap 600® Index Fund - Investor Class \| Utilities Sector [Member]
Holdings [Line Items]
Percent of Total Investments	1.92%
Empower S&P Small Cap 600® Index Fund - Investor Class \| Government Money Market Mutual Funds [Member]
Holdings [Line Items]
Percent of Total Investments	3.20%
Empower S&P Small Cap 600® Index Fund - Investor Class \| Basic Materials [Member]
Holdings [Line Items]
Percent of Total Investments	3.88%
Empower S&P Small Cap 600® Index Fund - Investor Class \| Communications Sector [Member]
Holdings [Line Items]
Percent of Total Investments	4.95%
Empower Small Cap Growth Fund - Institutional Class \| Element Solutions Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.37%
Empower Small Cap Growth Fund - Institutional Class \| MACOM Technology Solutions Holdings Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.33%
Empower Small Cap Growth Fund - Institutional Class \| Mercury Systems Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.33%
Empower Small Cap Growth Fund - Institutional Class \| SPX Technologies Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.32%
Empower Small Cap Growth Fund - Institutional Class \| MYR Group Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.30%
Empower Small Cap Growth Fund - Institutional Class \| Legence Corp Class A [Member]
Holdings [Line Items]
Percent of Total Investments	1.29%
Empower Small Cap Growth Fund - Institutional Class \| TechnipFMC PLC [Member]
Holdings [Line Items]
Percent of Total Investments	1.28%
Empower Small Cap Growth Fund - Institutional Class \| Advanced Energy Industries Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.26%
Empower Small Cap Growth Fund - Institutional Class \| JFrog Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	1.22%
Empower Small Cap Growth Fund - Institutional Class \| Dreyfus Institutional Preferred Government Money Market Fund Institutional Class [Member]
Holdings [Line Items]
Percent of Total Investments	3.79%
Empower Small Cap Growth Fund - Institutional Class \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Total Investments	9.05%
Empower Small Cap Growth Fund - Institutional Class \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Total Investments	25.61%
Empower Small Cap Growth Fund - Institutional Class \| Consumer, Cyclical [Member]
Holdings [Line Items]
Percent of Total Investments	8.85%
Empower Small Cap Growth Fund - Institutional Class \| Consumer, Non-cyclical [Member]
Holdings [Line Items]
Percent of Total Investments	26.73%
Empower Small Cap Growth Fund - Institutional Class \| Energy Sector [Member]
Holdings [Line Items]
Percent of Total Investments	3.39%
Empower Small Cap Growth Fund - Institutional Class \| Technology Sector [Member]
Holdings [Line Items]
Percent of Total Investments	16.78%
Empower Small Cap Growth Fund - Institutional Class \| Government Money Market Mutual Funds [Member]
Holdings [Line Items]
Percent of Total Investments	3.79%
Empower Small Cap Growth Fund - Institutional Class \| Basic Materials [Member]
Holdings [Line Items]
Percent of Total Investments	1.98%
Empower Small Cap Growth Fund - Institutional Class \| Communications Sector [Member]
Holdings [Line Items]
Percent of Total Investments	3.82%
Empower Small Cap Growth Fund - Investor Class \| Element Solutions Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.37%
Empower Small Cap Growth Fund - Investor Class \| MACOM Technology Solutions Holdings Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.33%
Empower Small Cap Growth Fund - Investor Class \| Mercury Systems Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.33%
Empower Small Cap Growth Fund - Investor Class \| SPX Technologies Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.32%
Empower Small Cap Growth Fund - Investor Class \| MYR Group Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.30%
Empower Small Cap Growth Fund - Investor Class \| Legence Corp Class A [Member]
Holdings [Line Items]
Percent of Total Investments	1.29%
Empower Small Cap Growth Fund - Investor Class \| TechnipFMC PLC [Member]
Holdings [Line Items]
Percent of Total Investments	1.28%
Empower Small Cap Growth Fund - Investor Class \| Advanced Energy Industries Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.26%
Empower Small Cap Growth Fund - Investor Class \| JFrog Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	1.22%
Empower Small Cap Growth Fund - Investor Class \| Dreyfus Institutional Preferred Government Money Market Fund Institutional Class [Member]
Holdings [Line Items]
Percent of Total Investments	3.79%
Empower Small Cap Growth Fund - Investor Class \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Total Investments	9.05%
Empower Small Cap Growth Fund - Investor Class \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Total Investments	25.61%
Empower Small Cap Growth Fund - Investor Class \| Consumer, Cyclical [Member]
Holdings [Line Items]
Percent of Total Investments	8.85%
Empower Small Cap Growth Fund - Investor Class \| Consumer, Non-cyclical [Member]
Holdings [Line Items]
Percent of Total Investments	26.73%
Empower Small Cap Growth Fund - Investor Class \| Energy Sector [Member]
Holdings [Line Items]
Percent of Total Investments	3.39%
Empower Small Cap Growth Fund - Investor Class \| Technology Sector [Member]
Holdings [Line Items]
Percent of Total Investments	16.78%
Empower Small Cap Growth Fund - Investor Class \| Government Money Market Mutual Funds [Member]
Holdings [Line Items]
Percent of Total Investments	3.79%
Empower Small Cap Growth Fund - Investor Class \| Basic Materials [Member]
Holdings [Line Items]
Percent of Total Investments	1.98%
Empower Small Cap Growth Fund - Investor Class \| Communications Sector [Member]
Holdings [Line Items]
Percent of Total Investments	3.82%
Empower Small Cap Value Fund - Institutional Class \| Dreyfus Institutional Preferred Government Money Market Fund Institutional Class [Member]
Holdings [Line Items]
Percent of Total Investments	3.22%
Empower Small Cap Value Fund - Institutional Class \| Moog Inc Class A [Member]
Holdings [Line Items]
Percent of Total Investments	1.74%
Empower Small Cap Value Fund - Institutional Class \| Garrett Motion Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.73%
Empower Small Cap Value Fund - Institutional Class \| Bel Fuse Inc Class B [Member]
Holdings [Line Items]
Percent of Total Investments	1.33%
Empower Small Cap Value Fund - Institutional Class \| Kodiak Gas Services Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.25%
Empower Small Cap Value Fund - Institutional Class \| Popular Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.21%
Empower Small Cap Value Fund - Institutional Class \| TD SYNNEX Corp [Member]
Holdings [Line Items]
Percent of Total Investments	1.20%
Empower Small Cap Value Fund - Institutional Class \| Ultra Clean Holdings Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.12%
Empower Small Cap Value Fund - Institutional Class \| Ameris Bancorp [Member]
Holdings [Line Items]
Percent of Total Investments	1.08%
Empower Small Cap Value Fund - Institutional Class \| Concentra Group Holdings Parent Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.06%
Empower Small Cap Value Fund - Institutional Class \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Total Investments	26.25%
Empower Small Cap Value Fund - Institutional Class \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Total Investments	17.93%
Empower Small Cap Value Fund - Institutional Class \| Consumer, Cyclical [Member]
Holdings [Line Items]
Percent of Total Investments	16.01%
Empower Small Cap Value Fund - Institutional Class \| Consumer, Non-cyclical [Member]
Holdings [Line Items]
Percent of Total Investments	14.46%
Empower Small Cap Value Fund - Institutional Class \| Energy Sector [Member]
Holdings [Line Items]
Percent of Total Investments	7.82%
Empower Small Cap Value Fund - Institutional Class \| Technology Sector [Member]
Holdings [Line Items]
Percent of Total Investments	6.63%
Empower Small Cap Value Fund - Institutional Class \| Utilities Sector [Member]
Holdings [Line Items]
Percent of Total Investments	3.67%
Empower Small Cap Value Fund - Institutional Class \| Government Money Market Mutual Funds [Member]
Holdings [Line Items]
Percent of Total Investments	3.22%
Empower Small Cap Value Fund - Institutional Class \| Basic Materials [Member]
Holdings [Line Items]
Percent of Total Investments	2.91%
Empower Small Cap Value Fund - Institutional Class \| Communications Sector [Member]
Holdings [Line Items]
Percent of Total Investments	1.10%
Empower Small Cap Value Fund - Investor Class \| Dreyfus Institutional Preferred Government Money Market Fund Institutional Class [Member]
Holdings [Line Items]
Percent of Total Investments	3.22%
Empower Small Cap Value Fund - Investor Class \| Moog Inc Class A [Member]
Holdings [Line Items]
Percent of Total Investments	1.74%
Empower Small Cap Value Fund - Investor Class \| Garrett Motion Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.73%
Empower Small Cap Value Fund - Investor Class \| Bel Fuse Inc Class B [Member]
Holdings [Line Items]
Percent of Total Investments	1.33%
Empower Small Cap Value Fund - Investor Class \| Kodiak Gas Services Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.25%
Empower Small Cap Value Fund - Investor Class \| Popular Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.21%
Empower Small Cap Value Fund - Investor Class \| TD SYNNEX Corp [Member]
Holdings [Line Items]
Percent of Total Investments	1.20%
Empower Small Cap Value Fund - Investor Class \| Ultra Clean Holdings Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.12%
Empower Small Cap Value Fund - Investor Class \| Ameris Bancorp [Member]
Holdings [Line Items]
Percent of Total Investments	1.08%
Empower Small Cap Value Fund - Investor Class \| Concentra Group Holdings Parent Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.06%
Empower Small Cap Value Fund - Investor Class \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Total Investments	26.25%
Empower Small Cap Value Fund - Investor Class \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Total Investments	17.93%
Empower Small Cap Value Fund - Investor Class \| Consumer, Cyclical [Member]
Holdings [Line Items]
Percent of Total Investments	16.01%
Empower Small Cap Value Fund - Investor Class \| Consumer, Non-cyclical [Member]
Holdings [Line Items]
Percent of Total Investments	14.46%
Empower Small Cap Value Fund - Investor Class \| Energy Sector [Member]
Holdings [Line Items]
Percent of Total Investments	7.82%
Empower Small Cap Value Fund - Investor Class \| Technology Sector [Member]
Holdings [Line Items]
Percent of Total Investments	6.63%
Empower Small Cap Value Fund - Investor Class \| Utilities Sector [Member]
Holdings [Line Items]
Percent of Total Investments	3.67%
Empower Small Cap Value Fund - Investor Class \| Government Money Market Mutual Funds [Member]
Holdings [Line Items]
Percent of Total Investments	3.22%
Empower Small Cap Value Fund - Investor Class \| Basic Materials [Member]
Holdings [Line Items]
Percent of Total Investments	2.91%
Empower Small Cap Value Fund - Investor Class \| Communications Sector [Member]
Holdings [Line Items]
Percent of Total Investments	1.10%

Shareholder Report, Holdings (Details)

Jun. 30, 2026